A satellite that orbits the Earth spends half of its time crossing the northern hemisphere and half of its time crossing the southern hemisphere.
A satellite in this type of orbit is said to have a "drift orbit." This type of orbit is useful for satellites that need to cover a large portion of the Earth's surface for applications such as remote sensing, weather observation, and communication.
The orbit of the satellite is carefully designed such that it crosses the equator at a specific angle, which allows it to spend equal amounts of time over both hemispheres. The altitude of the orbit, the speed of the satellite, and the inclination angle are all important factors that determine the exact shape of the satellite's path around the Earth.
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Give me the real answer
Answer: 12,339
Explanation:
the video states that the planetary orbits are shown to scale. which statement correctly describes the way the planet sizes are shown compared to their orbits?
In relation to their orbits, all of the planets are substantially too big. According to Kepler's first law, the Sun is at one focus of each planet's elliptical orbit.
What one of the following traits does each planet inside the solar system share?It specifies three requirements for a planet: It must revolve around the Sun, a planet in our solar system. It must be large enough for gravity to pull it in a spherical direction. It must have been large enough that any nearby objects of a similarly sized were removed by its gravitational pull.
Which of following traits applies to all four inner solar system planets?The interior planets are all solid rocky, dense planets The moons of the inner planets are either absent or limited to one Earth or three Mars. The inner planets don't have any rings. The planets orbits have smaller orbits all around Sun than the outer planets, but they all rotate more slowly.
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loeffler's medium is useful in making the presumptive identification of isolates suspicious for corynebacterium diphtheriae recovered from oropharyngeal cultures because it:
Because Loeffler medium enhances primary and secondary isolation and cultivation of fastidious pathogenic microorganisms especially from nose and throat. It also restores virulence and other identifying properties.
What is Loeffler serum slope medium used to culture mainly?Loeffler medium enhances primary and secondary isolation and cultivation of fastidious pathogenic microorganisms especially from nose and throat. It also restores virulence and other identifying properties (microscopic and colonial) after they have been lost due to prolonged incubation or repeated subculturing.Ions are supplied by sodium chloride. Dextrose is a fermentable carbohydrate source. During the sterilising process, the eggs and beef serum cause the medium to coagulate and are sources of protein that the coynebacteria and other organisms utilise for metabolism.
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flow control valves control the volume of flow by varying the size of a(n) ______ through which the fluid flows.
Flow control valves control the volume of flow by varying the size of an orifice through which the fluid flows.
Flow control valves are devices used to regulate the flow of fluids, gases, or electrical signals in a system. They are used in a variety of applications, such as controlling the flow of water to a faucet, regulating the flow of fuel to an engine, or controlling the flow of electricity to a motor.
Flow control valves work by either partially or completely blocking the flow of the fluid, gas, or electrical signal, depending on the type of valve and the application. This can be done either manually or automatically.
Manual valves are typically controlled by a lever or dial, while automatic valves are controlled by a set of sensors or other electrical components. Flow control valves are essential to the proper functioning of a wide range of systems, and their design must take into account the intended use of the system.
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problem 1.14. calculate the mass of a mole of dry air, which is a mixture of n2 (78% by volume), o2 (21%), and argon (1%)
The mass of a mole of dry air is approximately 28.97 g/mol, which we attain by adding up the mass of each component gas.
The mass of a mole of dry air can be calculated by determining the mass of each component gas in the mixture and adding them together. A mole of a gas is defined as the number of atoms or molecules of the gas that contains Avogadro's number of entities, which is 6.022 x 10^23.
To calculate the mass of a mole of air, we first need to determine the number of moles of each component gas in a sample of air. The volume percent of each gas in dry air can be used to calculate the number of moles of each gas in a sample. For example, the number of moles of nitrogen (N2) in a sample of air can be calculated as follows:
n(N2) = 0.78 x total number of moles of air
Similarly, the number of moles of oxygen (O2) and argon (Ar) in a sample of air can be calculated using their volume percentages.
Next, we need to determine the molecular weight of each component gas, which is the mass of one mole of the gas. The molecular weight of nitrogen is 28.02 g/mol, the molecular weight of oxygen is 32 g/mol, and the molecular weight of argon is 39.95 g/mol.
Finally, to calculate the total mass of a mole of air, we add up the mass of each component gas:
Mass of a mole of air = n(N2) x MW(N2) + n(O2) x MW(O2) + n(Ar) x MW(Ar)
The mass of a mole of dry air is therefore = 28.97 g/mol.
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what is the equation of the sine function that models the displacement of the tire swing? replace the values of a, b, and d in the box. then check your work by using the graphing tool to plot the function.
Answer:
Hope this helps after so long!
Explanation:
is it possible to achieve the desired reduction in diameter uniformly throughout the rod length? show relevant calculations in support of your answer and (b) calculate the work done in stretching the rod till the onset of inhomogeneous (nonuniform) deformation. assume the initial length of the rod to be 50.8 mm
When an is a fixed while x is the distances from one end, the diameters of a rods is given by the formula d = d0 (1 + ax).
How large a rod should be?The diameter of a curtain rod, or the cross-sectional breadth of the pole, is used to gauge all curtain rods. In general, curtain rod diameters range from one to three inches dependent on the weight of your drapes.
Inhomogeneous substance is what?The nc-Si:H is a non - homogeneous substance made up of crystalline grains, grain boundaries, and an amorphous phase with a broad range of crystal volume fractions. Reference Module for Materials Science and Engineering.
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Identify the types of interparticle or intermolecular forces present in the solids of each of the following substances. (Select all that apply.) (a) Co | dispersion, dipole-dipole, H bonding, ionic (b) BF3 | dispersion, dipole-dipole, H bonding, ionic (c) CH | dispersion, dipole-dipole, H bonding, ionic (d) NaNO3 | dispersion, dipole-dipole, H bonding, ionic (e) Ar | dispersion, dipole-dipole, H bonding, ionic (f) NH4CI | dispersion, dipole-dipole, H bonding, ionic.
The intermolecular forces present in Co is dipole-dipole, BF3 is dispersion, CH is dispersion, NaNO3 is dipole-dipole, Ar is London Dispersion Force and in NH4Cl dispersion forces are present.
Intermolecular forces are the main reason for the substance's physical characteristics. The condensed states of matter are caused by intermolecular forces. London dispersion forces are the intermolecular force seen in CO. Due to its high degree of polarity, CO engages in dipole-dipole interaction. Van der Waal's force is the sole intermolecular force present in the boron trifluoride molecule. Although C-H bonds have a small amount of polarity. For this substance, dispersion forces would be the most important intermolecular force. For noble gases like argon, there is an intermolecular force of attraction known as the London Dispersion Force (Ar). Since both molecules in NH4Cl are non-polar, the only forces at play are London dispersion forces.
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a regulation basketball has a 41cm diameter and may be approximated as a thin spherical shell. how long will it take a basketball starting from rest to roll without slipping 1.7mm down an incline that makes an angle of 28.3 with the horizontal?
The time it takes the ball to roll down without slipping 1.7 mm down an incline is 0.046 s.
The ball rolling without slip means that the ball experiences translational kinetic energy and rotational kinetic energy. The formula for the energy
PE = m × g × h
KE = 0.5 × m × v²
ME = PE + KE
RKE = 0.5 × I × ω²
ω = v/R
m = mass (kg)v = velocity (m/s)g = acceleration due to gravity = 9.8 m/s²h = height (m)I = moment of inertiaAt the top
v = 0 (at its rest)At the bottom
h = 0According to the law of conservation of energy
ME₁ = ME₂
PE₁ + KE₁ + RKE₁ = PE₂ + KE₂ + RKE₂
1.67 × 10⁻² × m + 0 + 0 = 0 + 0.5 × m × v² + 0.5 × I × ω²
1.67 × 10⁻² × m = 0.5 × m × v² + (1/2) × (2/3)mR² × (v/R)²
1.67 × 10⁻² = (1/2) × v² + (1/3)R² × v²/R²
1.67 × 10⁻² = (3/6)v² + (2/6)v²
1.67 × 10⁻² = (5/6)v²
v² = 1.67 × 10⁻² × (6/5)
v² = 2.0 × 10⁻²
[tex]v \:=\: \sqrt{2.0 \times 10^{- 2}[/tex]
v = 0.14 m/s
According to non-uniform motion
v² = u² + 2ad
v = u + at
u = initial velocity (at the top) = 0v = final velocity (at the bottom) = 0.14 m/s a = acceleration t = times d = distance (m)β = 28.3° h = 1.77 mm = 1.7 × 10⁻³ mLook at the attachment. According trigonometric ratioCalculate the acceleration
v² = u² + 2ad
0.14² = 0² + (2 × a × 0.0032)
0.0196 = 0.0064a
a = 0.00196 ÷ 0.0064
a = 3.06 m/s²
Time traveled
v = u + at
0.14 = 0 + 3.06t
t = 0.14 ÷ 3.06
t = 0.046 s
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where do the forms exist, according to plato? group of answer choices in physical objects. in a separate, immaterial realm. in our sensory experience. in the cave.
According to Plato, Forms exist in a separate, immaterial realm. In his philosophy, Forms are abstract concepts such as justice, beauty, equality, and goodness that exist beyond the physical world. They are perfect and unchanging, while physical objects are mere copies or representations of these Forms.
Plato believed that our sensory experience of the physical world is limited and deceptive, and that the Forms can only be apprehended by the mind. He also argued that knowledge of the Forms is innate, and that it can be awakened through philosophical inquiry and the study of mathematics.
In the allegory of the cave, Plato describes Forms as the source of all meaning and truth in the world, and suggests that our goal as humans should be to move from the cave of sensory experience to the realm of Forms and gain true knowledge and understanding.
Plato's theory of Forms continues to be a subject of debate and discussion in philosophy, and has had a profound impact on the development of Western thought.
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A small car of mass 500 kg is pushing a large truck of mass 980 kg due east on a level road. The car exerts a horizontal force of 1500 N on the truck. What is the magnitude of the force that the truck exerts on the car
Answer:
Below
Explanation:
Equal and opposite 1500 N
a man runs at a speed of 4m/2 to overtake a standing bus. when he is 6m behind the door the bus moves forward and continues with
When a man approaches a bus that is standing still at speed of four m/s and bends the door at a distance of 6 m, the bus accelerates forward at a constant rate of 1.2 m/s.
Describe acceleration using an example ?An object's velocity can alter depending on whether it moves faster or slower or in a different direction. A falling apple, a moon orbiting the earth, and a car stopped at a stop sign are a few instances of acceleration.
What is a prime illustration of acceleration?A car is speeding as it rounds a corner at steady velocity because its trajectory is shifting. The acceleration increases with turning speed. As a result, an increase or a decrease in speed or direction, or both, when velocity changes, either in magnitude or both.
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TRUE OR FALSE the term thyristor includes all the semiconductor devices which show inherent on-off behavior, as opposed to allowing gradual changes in conduction.
The term thyristor includes all the semiconductor devices which show inherent on-off behavior, as opposed to allowing gradual changes in conduction is a true statement.
A thyristor is a four-layer semiconductor device that uses P-type and N-type materials in alternate layers (PNPN). Anode, cathode, and gate, commonly referred to as a control electrode, are the three electrodes that typically make up a thyristor.
The silicon-controlled rectifier is the most prevalent kind of thyristor (SCR). No current flows until a pulse is applied to the gate when the cathode is negatively charged in relation to the anode. As soon as this happens, the SCR starts to conduct current until the voltage between the cathode and anode is reversed or dropped below a certain threshold or holding value. A tiny triggering current or voltage can be used to switch or control massive amounts of electricity using this sort of thyristor.
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Blake records the amount of daily rainfall along with the average daily temperature for several days. The scatterplot shows his data.
Which statement about the outlier in the data set is true?
O Blake should not include the outlier because it overstates the effect of rainfall on temperature.
O Blake should include the outlier because it shows there is no relationship between rainfall and average daily temperature.
O Blake should not include the outlier because it understates the effect of rainfall on temperature.
O Blake should include the outlier because it shows there is a relationship between rainfall and temperature.
The scatterplot data set is true Because the outlier overstates how much rain affects temperature, Blake shouldn't include it.
A scatter plot displays what information?The changes seen in two different sets of variables might be related in several ways, according to a scatter plot. The strength of a relationship between two variables can be tested statistically and visually with this method.
What is the purpose of a scatter plot?The graphs known as scatter plots show how two variables within a data collection relate to one another. Both a two-dimensional plane and the Cartesian system are used to represent the data points. The Y-axis is used to plot the dependent variable, while the X-axis is used to represent the independent variable or attribute.
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Capacitor of a capacitance
The capacitance, C, of a capacitor is defined as the ratio of the maximum charge, Q, that can be stored in the capacitor to the voltage, V, applied across the plates of the capacitor. In other words, capacity is the maximum amount of charge per volt that can be stored in a device.
C = QV . C = QV
About capacitor & capacitanceA capacitor is a system of two conductors separated by an insulator. While capacitance is the ability to store electric potential energy and electric charge. So the function of the capacitor and capacitance is an object that can store an electric charge.
The capacitors and capacitance can store electricity and redistribute it. Its use can be found as in flash lights on cameras, it is also widely used on electrical circuit boards on computers and on various electronic equipment.
In addition, these capacitors and capacitance can be used to smooth out the ripple that occurs when alternating current is converted to direct current in the power supply, so that it can be used in calculators or radios when the battery cannot be used.
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Calculate the force of gravity acting on your 7 kg backpack
Answer:
70 N
Explanation:
F = m x a ( Newton’s second law )
= 6 kg x 10 m/s2 (Acceleration due to gravity is 9.8 m/s2 but 10 when rounded)
= 70 N
Hope it helps!
compute the phase velocity and wavelength in an fr4 printed circuit board whose relative dielectric constant is 4.6
The phase velocity in a printed circuit board with a relative dielectric constant (εr) of 4.6 can be calculated using the formula, so the final answer will be [tex]2.36 \times 10^{8} m/s.[/tex]
Describe epsilon R.The symbol for it is r. It is a substance's capacity to permit the passage of an electric current. the capacity of empty space to permit the passage of an electric current the proportion of a substance's permittivity to the permittivity of empty space It is influenced by frequency.
The relative permittivity was once known as the dielectric constant and represented by the Greek letter kappa: = 0; r = 0; Since we frequently use the same units, F/m, for both and 0, r is a dimensionless number. Air and vacuum. A vacuum has a relative permittivity of 1 by definition.
vp = c / √εr
vp = 3 x 10^8 m/s / √4.6
vp = 2.36 x 10^8 m/s
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a ball is dropped from the top of a building 96 ft. tall. the height after time (in seconds) is given by , where is the height of the ball when dropped.
That graph of your function is a parabola, which is the first thing to notice in this situation. For a parabola, the vertex at point y = ax2 + bx + c is the (h, k).
How do you find the height of where a ball was dropped?The height at which a ball was thrown can be determined in several ways.
In free fall, objects are known to follow the equation h=-4.9t2+c, where t is the time in seconds and c is the starting height. Timed by a student, the plunge occurred in 1.46 seconds. Use this to calculate the height, to at least two decimal places, where the ball was dropped.
Using this equation y = -16t2 + 96t + 3, we know that a = -16, b = 96, and c = 3 h = -b/2a h = -(96) / 2(-16) h = -96 / -32 h = 3 seconds.
This indicates that in three seconds, the ball will have reached its highest point. However, the question of what height that is poses a challenge. Let's thus add t=3 to our equation as a last step.
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identify two factors that determine the amount of electricity that can be generated by an indi-vidual hydroelectric power plant. (2 points)
Two factors that determine the amount of electricity that can be generated by an individual hydroelectric power plants - It depends on the vertical distance through which the water falls and the flow rate, or amount of water that flows past a certain point per unit time, The greater the distance that the water falls, the more potential energy it had and the more electricity is generated the more kinetic energy it has and the more .
Impoundment, diversion, and pumped storage facilities are the three different types of hydroelectric facilities. Hydropower plants vary in their utilisation of dams. Despite the fact that not all dams were constructed for hydropower, they have been successful in supplying vast amounts of renewable energy to the grid. As of 2020, fewer than 2,300 of the more than 90,000 dams in the United States were producing electricity. The other dams are utilised for water supply, irrigation, flood control, stock/farm ponds, and recreation. Hydropower facilities come in a variety of sizes, from modest initiatives providing electricity for a single house or community to massive undertakings.
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In the following equation used to approximate the vibrational frequency of a bond between two atoms, the variable is determined by knowing which of the following values? v=( ε inc
1
)( m i−1
1
) 2
1
formula weight molecular formula frequency force constant (bond strength)
The force constant is used to make an educated guess regarding the vibrational frequency of an atom-to-atom link.
We can roughly determine the vibrational frequency of a bond between two atoms of mass m1 and m2 using the equation shown in this illustration. In this equation, f stands for the spring's force constant, which stands for the bond's tensile strength, and mred for the system's reduced mass. A molecule's link can rotate and vibrate in a variety of ways. A measure of a bond's strength is the force constant (K). As a result, as bond strength grows, the value of stretching frequency of a bond also increases. However, the question implies that the force constant would remain unchanged, thus we must only rely on the other factor—reduced mass.
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Speed, velocity, and acceleration are interrelated concepts that represent different measurements concerning movement. You can sometimes feel the change in speed, acceleration, and velocity when riding in a car. If someone presses their foot on the gas, you may feel yourself being pressed against the seat. If there is a sudden change in direction, your body may veer to one side or the other. Take note of these reactions the next time you ride in a vehicle. Why does your body react in these ways?
Your body reacts to changes in speed, velocity, and acceleration because of Newton's laws of motion. According to these laws, an object in motion will remain in motion unless acted upon by an unbalanced force. When the car accelerates, the sudden increase in speed pushes your body back against the seat, as if you are being pulled by a force equal and opposite to the acceleration of the car. This is known as the law of inertia.
What is the acceleration about?Similarly, when there is a sudden change in direction, such as when the car turns a corner, your body continues to move in a straight line due to inertia. This causes you to veer to one side or the other, as the change in direction creates a force that acts on your body. This is known as centripetal force, which is directed towards the center of the turn and is proportional to the speed and acceleration of the vehicle.
In conclusion, your body reacts to changes in speed, velocity, and acceleration in a vehicle because of the laws of motion, which describe how objects in motion interact with forces and accelerations. Your body's movements are the result of the forces acting on it, which can be explained by Newton's laws of motion.
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A light spring with a spring constant of 102.0 N/m rests vertically on the table, as shown in (a) below. A 1.75 g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 4.92 m3 and connected to the spring, causing the spring to stretch, as shown in (b) below. How much does the spring stretch when the system is in equilibrium. (The density of helium is 0.179 kg/m3. The magnitude of the spring force equals kΔx.)
If the light spring is stretched with a spring constant of 102 N/m then, the elongated length of the spring will be 0.48 meters.
What is Spring constant?
Spring constant is the force which is needed to stretch or press a spring, divided by the distance that the spring gets longer or shorter.
Given,
Spring constant of light spring k = 102.0N/m
mass of balloon m = 1.75g = 1.75 × 10⁻³ Kg
Density of helium (He) = 0.179 kg/m
Density of air = 1.204 kg/m³
Volume of balloon/helium V = 4.92 m³
We have 3 forces acting on the spring, two directed downward, one upward. Downward forces are the weight of the balloon and weight gas inside it. of the helium
Upward force is the buoyant force. helium is of lesser density. air.
Now, Fnet = mg + e(He) vg - Ve(air)g
Fnet = g[m + v(e(He)-e(air))]
Fnet = 9.8 (1.75 × 10⁻³+ 4.92(0.179-1.204))
Fnet = 9.8(0.00175 + (-5.04125))
Fnet = 9.8 × -5.04125
Fnet = -49.40 N
The elongation of the spring = IFnetI/ K
Length = 49.40/ 102
Length of spring = 0.48 meters
Therefore, the elongated length of the spring will be 0.48 meters.
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a pendulum is pulled aside 13.0cm higher and then released determine its speed at the bottom of the swing
From this equilibrium position, a pendulum is drawn down an additional 0.15 m but then released after being pulled apart 13.0 cm.
How much more energy is contained in the pendulum overall so at bottom of the its swinging than at the top?Its gravitational energy is at its peak near the height of the swing. Gravitational energy declines and is converted to kinetic energy even as pendulum swings downward. It possesses the most kinetic energy and the least gravitational energy somewhere at bottom of its swing.
What energy store has full while a chandelier is swinging and at its highest point?Energy may be found OR transferred easily, for instance The pendulum possesses kinetic energy when it is in motion. It also has gravitational force due to its height at the end of the swing. As the pendulum swings, heat is lost to the atmosphere, and kinetic energy transforms into potential energy, or KE to PE.
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in order to determine the size of the heating element of a new oven, we wish to determine the rate of heat loss through the walls, door, and the top and bottom sections of the oven. in your analysis, would you consider this to be a steady or
Since the thermal conditions in the kitchen and the oven, in general, fluctuate over time, heat transfer through the walls, door, and top and bottom sections of an oven is temporary in nature.
However, under the worst predicted conditions, such as the oven's highest temperature setting and the kitchen's projected lowest temperature (the so-called "design" conditions), we would examine this issue as a steady heat transmission problem. If the oven's heating element is big enough to maintain the intended temperature setting under the worst case scenario, it is also big enough to do so by cycling on and off under all circumstances.
Since heat will be entering the oven through each of its six sides, heat transfer from the oven will be three-dimensional in nature. Though it can be considered as being one-dimensional, heat transfer through any wall or floor occurs in the direction normal to the surface. Therefore, by assuming that the heat transfer is one-dimensional at each of the four sides as well as the top and bottom portions, as well as by summing the computed values of heat transfers at each surface, this problem can be substantially simplified.
The question is incomplete, it should be:
In order to determine the size of the heating element of a new oven, it is desired to determine the rate of heat transfer through the walls, door, and the top and bottom section of the oven. In your analysis, would you consider this to be a steady or transient heat transfer problem? Also, would you consider the heat transfer to be one-dimensional or multidimensional?
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please provide an explanation
The final velocity of the toy car after the collision with the wall is 2.46 m/s.
What is the final velocity of the toy car after the collision with the wall?The final velocity of the toy car after the collision with the wall is determined from the formula of impulse and momentum.
Impulse = change in momentum
Also, impulse = force * time
change in momentum = mv - mu
where:
m is the mass = 0.25 kg
v is the final velocity = ?
u is the initial velocity = 0.86 m/s
From the graph, the force is 40 N and the time of impact is 0.01 seconds
40 * 0.01 = 0.25v - 0.25 * 0.86
0.25v = 0.615
v = 2.46 m/s
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quantitatively determine the radius of revolution, r, of the satellite in terms of the given quantities and any fundamental constants.
The satellite's radius of rotation, r, expressed in terms of the provided values, [tex]fc=mv^2/r $and$ fg=GmM/r^2.[/tex]
How can I determine a satellite's radius?We can determine the orbital period by noting the interval between transits. If the mass of the orbiting star is known, one may use Kepler's Third Law to calculate the orbital radius of the planet (R3=T2Mstar/Msun; the radius is in AU and the period is in earth years).
What connection exists between a satellite's period T and orbital radius R?Kepler's law specifies the relationship between the circular path's radius (r) and time period (T). Kepler asserted that the cube is directly proportional to the square of the time period.
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Question:
Quantitatively determine the radius of revolution, R, of the satellite in terms of the given quantities and any fundamental constants
Fc=Fg
Fc=_______
fg=_______
Fc=_______=Fg=_______
match the igneous rock example with its description. instructions obsidian obsidian drop zone empty. pumice pumice drop zone empty. scoria scoria drop zone empty. tuff tuff drop zone empty. volcanic breccia volcanic breccia drop zone empty. pegmatite pegmatite drop zone empty. ash, pumice, crystals, and rock fragments that may be welded contains many vesicles; usually dark to reddish in color contains vesicles and can float on water fragmented igneous rock shiny volcanic glass contains very large crystals
Pegmatic-A in the presence of water, deep within the Earth. Porphyritic A and B first appear deep inside the Earth, then appear later close to the surface. B- as gas bubbles through lava close to the Earth's surface.
What four types of igneous rocks are there?There are two fundamental kinds: Diorite, gabbro, granite, and pegmatite are examples of intrusive igneous rocks that solidify below the Earth's surface. Andesite, basalt, obsidian, pumice, rhyolite, and scoria are examples of extrusive igneous rocks that solidify on or above the Earth's surface.
What seven instances of igneous rocks?According to definitions, igneous rocks are forms of rocks that are created when molten rock, or rock that has been liquefied by extreme heat and pressure, cools to a solid condition. Rock that is in the process of melting and vents or fissures at volcanic centers (when cooled, they form rocks such as basalt, rhyolite, or obsidian).
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A car of 1000kg moves at a constant speed of 20m/s along a horizontal road. If the frictional force is 200N, calculate the power developed by the engine
The power developed by the engine is 4 kilowatts.
What is Frictional force?Friction force can be defined as the force resisting the relative motion of solid surfaces, fluid layers and material elements sliding against each other.
To calculate the power developed by the engine, we need to find the net force acting on the car and multiply it by its velocity.
Since the car is moving at a constant speed, the net force acting on it is equal to the frictional force:
Net force = Frictional force = 200 N
Power = Force x Velocity = 200 N x 20 m/s = 4000 Watts = 4 kilowatts.
So, the power developed by the engine is 4 kilowatts.
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in fig. 13-21, a central particle of mass m is surrounded by a square ar- ray of other particles, separated by ei- ther distance d or distance d/2 along the perimeter of the square.what are the magnitude and direction of the net gravitational force on the central particle due to the other particles?
The magnitude of the net gravitational force on the central particle due to the other particles is zero.
The direction of the net gravitational force is also zero, since all of the forces on the central particle due to the other particles cancel out.
Given the mass of central particle = m
It is surrounded by array of square of other particles.
The particles are separated by a distance of d or d/2
We know the force of gravity is F = GMm/r^2 where G is the gravitational constant and r is the distance between the particles.
Each particle's gravitational force on one side of the square cancels out the gravitational pull of one of the other side's particles.
The magnitude of gravitational force acting on the particles is zero because the forces due to all other charges cancel due to the symmetry considerations.
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e three indices of the fraud triangle include . (a) opportunity, pressure, and rationalization (b) opportunity, pressure, and accessibility (c) pressure, thoughtfulness, and accessibility (d) opportunity, accountability, and rationalization
The three indices of the fraud triangle include . ( The correct answer is (a.).
The Fraud Triangle consists of three components: pressure, opportunity, and rationalization.
Pressure -- Fraud can originate from either personal financial pressure or work pressure. Personal financial pressure can be due to greed, personal debt, addiction to drug/gambling, large pending bills, unexpected losses, etc. Work pressure can include a sense of dissatisfaction at work, unrealistic performance targets, pressure from superiors, etc.
Opportunity -- The pressurized employee looks for an opportunity to commit the fraud. Opportunity can be the situation which makes an individual believe that there is an enough room available to commit the fraud. Few examples of such situations can be poor internal controls, gaps in the employee policies, ineffective monitoring of the existing controls, etc.
Rationalization -- Rationalization, in simple terms, is when an individual justifies and convinces himself/herself that it is okay to do something (in this case, commit fraud). A few reasons that might be considered when rationalizing include the idea that the practice is "normal," convincing oneself that the money will be paid back, the unfilled deserving of a pay rise, etc.
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