After cutting the wire in half, the new length of each wire piece is 1.57 m. Each wired piece has an electrical resistance of 10 ohms.
The electrical resistance of a wire depends on its length and cross-sectional area. When a wire is cut in half, its length is halved while its cross-sectional area remains the same.
Using the formula for resistance:
R = ρ * L / A
=3.14 m / 2
= 1.57 m.
The cross-sectional area of each wire piece can be calculated as:
A = π * (diameter / 2)^2
A = π * (2 cm / 2)^2
A = π * (1 cm)^2
A = π cm^2
Plugging in the new values for length and area, we get:
R = ρ * 1.57 m / π cm^2
R = 10 ohms
Resistance is a term used in physics to describe the opposition of a material to the flow of an electric current. It is a fundamental concept in electrical engineering and is used to describe the behavior of electrical circuits and devices.
Resistance is typically measured in units of ohms (Ω) and is determined by the properties of the material, such as its composition and temperature, as well as its physical dimensions, such as its length and cross-sectional area.
In an electric circuit, resistance limits the flow of electric current, causing a drop in voltage and dissipating energy as heat. The amount of resistance in a circuit affects the amount of current that can flow through it, which in turn affects the operation of electrical devices. Resistance is an important factor in the design and operation of electrical systems, as it affects the efficiency and performance of devices, such as motors, transformers, and power supplies. It is also a key factor in the safety of electrical systems, as it helps to prevent dangerous overloading and short circuits.
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air a high pressure at the surface. moves across moves towards rises above converges into sinks above question content arearising air creates what type of pressure system at the surface? high converging reciprocal low diverging question content arearain often occurs at areas of low surface pressure. true false
Pressure is a key meteorological factor that governs weather patterns and sheds light on their intensities, especially those of tropical cyclones.
Where air is present, there is a high surface pressure?High air pressure areas are referred to as high pressure systems. A low-pressure system's center keeps its pressure lower than its surroundings. The air where the winds meet rise in the atmosphere as they blow in the location of a low-pressure area.
Why does the pressure rise?Why does blood pressure rise.Usually, high blood pressure comes on gradually. Unhealthy lifestyle decisions, such as not engaging in adequate regular physical activity, can contribute to it. Obesity and certain medical problems like diabetes might raise one's risk of acquiring high blood pressure.
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if we triple the temperature and double the volume, what would the new pressure of the system be?
The pressure will increase by 3/2, or 50% when the volume is doubled and the temperature is tripled.
When the temperature is tripled, what happens to the pressure?The pressure rises as the Kelvin temperature rises. The relationship between the two amounts is direct proportionality. The pressure of the gas will triple when the Kelvin temperature is tripled.
How does volume change when it is doubled?So, doubling the volume will be equivalent to reducing the pressure. If you apply reasoning to it, this also makes sense. Gas will spend less time pressing against the container walls if it has more room to move around in.
How does rising temperature affect pressure?The average kinetic energy and the velocity of the gas particles striking the container walls both rise as the temperature rises. As the temperature rises, the pressure must as well since pressure is the force the particles per unit of area exert on the container.
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a golf ball of mass 0.043 kg is hit off the tee at a speed of 41.8 m/s. the golf club was in contact with the ball for 5.13 ms. find the impulse imparted to the golf ball.
When a golf ball of mass 0.043 kg is struck off the tee at a speed of 41.8 m/s, the impulse given to the golf ball is 1.78 Ns.
What is force?A force is an effect in physics that may modify the velocity of an item. A force can cause a mass item to change its velocity, or accelerate. Intuitively, force may be characterized as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Here,
The impulse imparted to the golf ball can be calculated as the product of the force applied and the time of contact:
impulse = force * time
Since force is equal to mass times acceleration, we can write:
impulse = m * a * t
where m is the mass of the ball (0.043 kg), a is the acceleration imparted by the club, and t is the time of contact (5.13 ms).
Since the time of contact is short, we can assume that the acceleration is constant, so we can use the equation for impulse-momentum to find the acceleration:
impulse = m * Δv
where Δv is the change in velocity of the ball.
Since the ball starts at rest, its initial velocity is 0 m/s and its final velocity is 41.8 m/s, so Δv = 41.8 m/s.
Substituting the given values into the equation, we get:
impulse = 0.043 kg * 41.8 m/s = 1.78 Ns
So, the impulse imparted to the golf ball is 1.78 Ns when a golf ball of mass 0.043 kg is hit off the tee at a speed of 41.8 m/s.
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the initial kinetic energy of the neutron is 1.10 10-13 j. find its final kinetic energy and the kinetic energy of the carbon nucleus after the collision.
Its final kinetic energy and the kinetic energy of the carbon nucleus after the collision is 28%.
You can determine the after-collision velocities for two particles (masses m1 and m2, beginning velocities u and u next) in [1] for a completely elastic head-on collision:
[tex]v_{1}[/tex] = ([tex]u_{1}[/tex]×([tex]m_{1}[/tex] - [tex]m_{2}[/tex]) + 2×[tex]\frac{m_{2}\times u_{2} }{m_{1}+m_{2}}[/tex]
[tex]v_{2}[/tex] = ([tex]u_{1}[/tex]·( [tex]m_{2}[/tex]- [tex]m_{1}[/tex]) + 2×[tex]\frac{m_{1}\times u_{1} }{m_{1}+m_{2}}[/tex]
Let subscript 1 stand for a proton and subscript 2 for a nucleus. Since the nucleus was initially at rest, or u=0, its subsequent velocity is given by:
[tex]v_{2}[/tex] = 2×[tex]\frac{m_{1}\times u_{1} }{m_{1}+m_{2}}[/tex]= 2×[tex]\frac{ u_{1} }{1+\frac{m_{2}}{m_{1}} }[/tex]
Therefore, the nucleus's kinetic energy following the collision is:
[tex]E_{2}[/tex] = [tex]\frac{1}{2}\times m_{2} \times v_{2} ^{2}[/tex] = 2×[tex]\frac{ u_{1}^{2} \times m_{2} }{1+(\frac{m_{2}}{m_{1}})^2 }[/tex]
The amount of kinetic energy from the neutrons that is transmitted to the nucleus is:
f =[tex]\frac{E_{2} }{E_{1} }[/tex]
= [ 2×[tex]\frac{ u_{1}^{2} \times m_{2} }{1+(\frac{m_{2}}{m_{1}})^2 }[/tex] / [ [tex]\frac{1}{2}\times m_{1} \times u_{1} ^{2}[/tex] ]
= 4[tex]\frac{\frac{m_{2} }{m_{1} } }{1+(\frac{m_{2} }{m_{1} })^2}[/tex]
= 4×[tex]\frac{12 }{1+12^2}[/tex]
= 0.28
= 28%
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a closed system allows for the exchange of ___ with the surroundings.
According to the stated situation, a closed system permits energy transfer to the environment.
What distinguishes surrounds from surrounding?The word "surrounding" refers to a certain thing's outside surroundings. The term "encircling" may be used as an adjective or an adjective. For instance, in the sentence Skye is around Meena, the word serving as a verb. The term "surroundings" refers to all of the places that are close to a person.
What are some illustrations of environments?The term "surrounding" refers to anything that is located in close proximity to a certain person, location, or object. Things that might be referred to as encircling your house include the lawn and plants that are found all around it.
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while traveling outside the united states, you feel sick. a companion gets you a thermometer, which says your temperature is 39. what scale is that on? what is your fahrenheit temperature? should you seek medical help?
It is recommended to get medical help if you have a temperature of 39°C (102.2°F), as this is considered a fever and it is crucial to identify the reason and get the right care.
The explanation for the given question is:
If your temperature is greater than 100.4°F (38°C), you have a fever. 39 degrees Celsius is comparable to 102.2 degrees Fahrenheit. It's possible that your temperature was recorded in Celsius by the thermometer. If you are feeling ill when traveling outside of the United States, it is advised to seek medical assistance since a temperature of 39°C is regarded as a fever. To identify the source of your fever and obtain the appropriate care if required, it is essential to keep an eye on your symptoms and seek medical guidance. Don't forget to stay hydrated and get plenty of rest.
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how many electrons must be transferred from one to the other so that, when released, they each initially accelerate toward the other with a
When two charged particles, such as electrons, are discharged, their acceleration depends on their charge and the distance between them.
What is acceleration?In mechanics, acceleration is defined as the rate of change of an object's velocity with respect to time. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force. The rate of change of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, however this is not always the case. When an item goes on a circular course with a constant speed, it is still accelerating since its velocity direction changes. An object's velocity might fluctuate due to an increase or decrease in speed or a change in direction of motion. A falling apple and the moon orbiting the earth are two instances of acceleration.
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what is the primary form of useful energy output in the case of a car?
In the case of an automobile, the engine's rotational power, which is transmitted to the wheels, is the main source of usable mechanical energy production.
How is energy created?Energy is a phrase used to define a characteristic of issue and non-matter fields; energy is not created of anything. For instance, matter is considered to have angular momentum while it is moving.
What does physics use as an example of energy?Kinetic energy is the energy that has been transformed into motion. Kinetic energy is the force that moves a pendulum. Gravitational potential is the power that an object has as a function of its position. Thus illustrate, because to the effects of gravity, a ball lying on even a table contains potential energy in respect to the ground.
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the stored energy available to do work is called ______ energy.
Answer: Potential energy.
Explanation:
a. a spaceship has a rest mass of 500,000 tons. if you could measure its mass when it was traveling at half the speed of light, what would it be? b. a fly has a mass of 1 gram at rest. how fast would it have to be traveling to have the mass of a large suv, which is about 3000 kilograms?
(a) The mass when a 500,000 tons spaceship traveling at half the speed of light = 250,000tons/c
(b) The velocity of the fly (that has a mass of 1 gram at rest), if have the mass of a large suv, which is about 3000 kilograms = 3000000 m/s
Equation that shows how momentum is directly related to an object's mass (m) and speed (v). The momentum of a large, swift object is greater than that of a small, slower object.
p = m x v
Where,
p = momentum
m = mass (kh)
v = the speed
Hence, the mass of the spaceship:
p = (500,000 tons x 1 m/s)
= 250,000tons/c
(b)
The velocity of the fly:
p = 1g x 1 m/s
Hence,
The velocity = 3000000 m/s
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Did ancient stargazers know that the planets were planets, or did they think they were stars?
Ancient stargazers did not know that the planets were planets. They thought they were stars because they move against the background of fixed stars.
What do stargazers do?Stargazers are people who observe and study celestial objects and phenomena in the night sky, such as stars, planets, galaxies, nebulae, etc. They can be professional astronomers or hobbyists.
How can one do stargazing?Stargazing can be done with the bare eye, binoculars, or telescopes. Stargazers can engage in a variety of activities, including observing celestial objects, tracking the movements of the planets, making sketches or photographs of the night sky.
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A loudspeaker on a tall pole broadcasts sound waves equally in all directions. What is the speaker�s power output if the sound intensity level is 107dB at a distance of 17m ?
The speaker's power output is P = 4 * pi * r*2 * I = 4 * pi * 17*2 * 10*10.7 * I0 if the sound pressure level is 107dB at a distance of 17m.
How is the volume of a sound measured?A sound's intensity is calculated by dividing its power, expressed in Watts, by the square meters it covers. The intensity of any given sound is related to the intensity at the hearing threshold by the loudness of the sound. Decibels are used to quantify it (dB).
The following equation describes the relationship between distance (r), sound intensity level (L), and sound intensity (I):
L = 10 log10 (I/I0), where I0 denotes the reference intensity (10^-12 W/m^2) and I is the intensity of the sound wave at a distance of r from the source.
Finding the strength of the sound wave at a distance of 17 meters is necessary before applying the power formula (P), which is represented by:
P = 4 * pi * r^2 * I
To find I, we can rearrange the intensity equation as follows:
I = 10^(L/10) * I0
Putting the values in this equation as substitutes:
I = 10^(107/10) * I0 = 10^10.7 * I0
Finally, we can determine the power output using this value of I:
P = 4 * pi * r*2 * I = 4 * pi * 17*2 * 10*10.7 * I0.
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is there any location along the line between them where the electric field magnitude is zero? if so, what is the distance from the particle carrying q to that location?
No, the electric field magnitude is zero only at the midpoint between the two charges, i.e. at a distance of d/2.
In order to determine the location of the electric field zero, we set the electric fields for each point charge to be equal to one another because that is the point at which they will cancel one another out. The electric potential does not necessarily equal zero just because the electric field is zero at a certain location.
The situation of two similar charges that are spread apart is an excellent example. Even when the electric field is not zero at a given point, the electric potential can nonetheless be zero there. Because it is 0 at a point inside the solid body of the conductor, the electric field caused by induced charges at the sphere's centre is zero.
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if the field of view is 0.45 mm (millimeters) in diameter and three cells can fit lengthwise across the field of view, how long is one cell?
If the field of the view is 0.45 mm in the diameter and the three cells can fit lengthwise across the field of the view, The long is one cell is 150 micron.
The diameter of the field = 0.45 mm
The three cells can be fit lengthwise across the field of the view.
The diameter in micron is as follows :
0.45 mm = 0.45 × 1000 micron = 450 micron
In 450 micron = 3 cells
The length of the cell = 450 micron / 3
The length of the cell = 150 micron
Thus, The length of the cell is 150 micron.
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PLEASE HELP ME!! I JUST NEED TO FND WHICH EVENT GOES TO EITHER ERA. I AM SO DESPERATE THAT IT IS WORTH 40 POINTS!!
Answer:
1-6 goes to the cenozoic era. 7-12 goes to the paleozoic era.13-16 goes to the Mesozoic era 17-20 goes to the Precambrian Time
as the two foci of an ellipse are brought together, the shape of the ellipse becomes
An ellipse takes on a more circular appearance as its two foci are drawn together.
What is the best definition of an ellipse?An ellipse is a closed curve made up of points whose distances from two fixed points (foci) total up to the same amount. The centre is where the foci meet in the middle. One characteristic of an ellipse is that a line from one focus will reflect off its boundary and pass through another. A plane can curve into an ellipse when it crosses a cone at an angle to its base. It is a curve with two focal points surrounding it. Ellipse is a collection of points with constant sum of their separations from two foci.
What is the application of ellipse?In physics, astronomy, and engineering, ellipses are frequently used. For instance, the Sun is at one focus point in the orbit of each planet in the Solar System, which is about an ellipse (more precisely, the focus is the barycenter of the Sun–planet pair). For two fundamental reasons, ellipses are necessary for engineering, architectural, or machine designs. First, any circle will seem to be a ellipse when viewed from an angle. Second, ellipses were frequently used in windows, ceilings, and stairways as well as other architectural features.
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What is the force experienced by a person whose momentum changes by 7kgm/s in 6s?
Give your answer to 1 decimal place.
Answer:
[tex]1n[/tex]
The answer is 1N.
Explanation:
Greetings!!
Given values :-momentum(p)= 7kgm/s
time(t)= 6s
Required values:-
force(F)=?
solution:-Firstly, recall the momentum-force equation
p=F.tsubstitute known variables into the equation
(7)=F(6)solve for force
F= 1.167N1.167 Rounded to the Nearest Whole Number
Therefore, we have to round down: the whole number ones place value of 1.167, 1, remains 1, and the decimal point and all digits (. 167) are removed. 1.167 rounded to the nearest whole number = 1.
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what magnitude of force, in newtons, must an 97.5-kg grouper exert to stay submerged in salt water (with density 1025 kg/m3) if its body density is 1015 kg/m3?
The force which is exerted by an object that is submerged in a fluid can be calculated using the equation of buoyant force:
Fb = ρf * V * g
where:
Fb = buoyant force
ρf = density of the fluid (1025 kg/m3 for salt water)
V = volume of the object
g = acceleration due to gravity (9.8 m/s^2)
As the density of the grouper (1015 kg/m3) is less than the density of the fluid (1025 kg/m3), the following object will experience an upward buoyant force.
So to stay submerged, the grouper must exert a force which is equal to the buoyant force in the opposite direction, that is downward.
Therefore, to find the volume of the grouper:
V = m / ρb
where:
m = 97.5 kg (mass of the grouper)
ρb = 1015 kg/m3 (density of the grouper)
Substituting the values into the equation:
V = 97.5 kg / 1015 kg/m3 = 0.096 m^3
Next, calculating the buoyant force:
Fb = ρf * V * g
= 1025 kg/m3 * 0.096 m^3 * 9.8 m/s^2
= 967.68 N
The magnitude of the force the grouper must exert to stay submerged is equal to the buoyant force:
F = 967.68 N
So, the grouper must exert a force of 967.68 N to stay submerged in salt water.
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1. in the following circuit, the loop (mesh) currents have been already assigned. a. write all the equations needed for mesh/loop analysis. b. write the equation needed to find vo c. write the equation needed to find v1
a)The equations needed for mesh/loop analysis for loop 1n is I1 + (V1 - V2)/R2 - (V2 - Vo)/R3 = 0, and loop 2 is I2 - (V2 - V1)/R2 - (V2 - Vo)/R3 = 0
b)Vo = V2 - R3 * I2
c) V1 = V2 + R2 * I1
Grid/loop analysis equations are written using Kirchhoff's Current Law (KCL), which states that the sum of all currents entering a node must equal the sum of all currents leaving that node. To write grid/loop equations, you must choose the direction of each current and write equations for each loop in the circuit.
The grid equation for the loop, taking into account the loop current, can be written as:
Loop 1:
I1 + (V1 - V2)/R2 - (V2 - Vo)/R3 = 0
loop 2:
I2 - (V2 - V1)/R2 - (V2 - Vo)/R3 = 0
b. To find Vo, we can use Ohm's Law to write an equation. The voltage across a resistor is equal to the product of the current flowing through the resistor and the resistance.
You can use this to write an equation for the voltage across R3.
Vo = V2 - R3 * I2
c. To find V1, we can write an equation using Ohm's law for the voltage across R2.
V1 = V2 + R2 * I1
This equation can be solved simultaneously to find unknown voltages and currents in a circuit.
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in the arrhenius equation, the collision frequency and molecular orientation are incorporated in the value of_______
The Arrhenius equation takes into account both of the postulates of the collision theory of reaction rates. The frequency factor A is proportional to the frequency of collisions with the right orientation.
The Arrhenius equation is given by k = Ae^(-Ea/RT), where A is the frequency or preexponential component and e^(-Ea/RT) is the percentage of collisions with energy sufficient to break through the activation barrier at temperature T. The pre-exponential factor, also referred to as A, is the frequency factor. This is essentially a constant discovered through experimentation. It typically represents the frequency of molecular collisions during a process. Arrhenius investigated how temperature affected reaction rates and proposed that the rate constant changes exponentially with temperature.
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a 0.105 kg hockey puck moving at 24 m/s is caught and held by a 75 kg goalie at rest. with what speed does the goalie slide on the ice?.
The goalie slides on the ice with a velocity of 0.24 m/s
What is the momentum conservation law?One of physics' most powerful laws is the conservation of momentum. The law of momentum conservation is explained in the paragraphs that follow.
For an impact between object 1 and object 2, the combined momentum of the two objects prior to the collision is equal to the combined momentum of the two after the collision.
Final momentum equals initial momentum
75 kg at 0 m/s and 0.105 kg at 24 m/s equals 0.105 kg at v and 75 kg at v.
where v represents the goalie's final velocity.
calculating v:
(0.0105 kg + 75 kg) v = 24 kg m/s
v = 0.105 kg + 75 kg / 24 kg m/s
v = 0.24 m/s
As a result, the goalie slides on the ice at a 0.24 m/s speed.
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a fixed system of charges exerts a force of magnitude 9.0 n on a 3.0 c charge. the 3.0 c charge is replaced with a 4.0 c charge. what is the exact magnitude of the force (in n) exerted by the system of charges on the 4.0 c charge? do not include units with your answer.
The required magnitude of the force exerted by the system of charges on the 4 C charge is calculated to be 12 N.
Magnitude of force is given as 9 N.
Initial charge = 3 C
It is then replaced by 4 C.
The magnitude of the force exerted by the system of charges on the 4 C charge is to be calculated.
We know that, electric field is given by the formula, E = F/q
Placing the values,
E = F/q = 9/3 = 3 N/C.
Now, the charge is 4 C.
The electric field remains the same. Then,
F = 3 × 4 = 12 N
Thus, the exact magnitude of the force exerted by the system of charges on the 4 C charge is 12 N.
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If a competitive inhibitor is present in an enzymatically catalyzed reaction, then:
A. Km↑ & Vmax↓
B. Km↓ & Vmax↑
C. Km↑ & Vmax is same
D.Km is same & Vmax ↓
If a reverse transcriptase is present, Km and Vmax in a catalytically concept goes will be equal.
What constitutes a good inhibitor?Here are four examples of medications that block enzymes: irreversible inhibitors like Acyclovir, which target the viral DNA-copying enzymes, are used to treat herpes. competitive inhibitors, such methotrexate, which treats bacterial infections as well as cancer. depression with non-competitive inhibitors like Trazadone.
An agent that challenges the substrate for the enzyme's active site is known as a competitive inhibitor. This response is often reversible.
The source concentration at which reaction is accelerating at half its maximal pace is known as the Michaelis Menten constant. It shows the enzyme's affinity for its substrate. Low Km denotes a strong affinity, while high Km denotes a low affinity.
A negative feedback system will increase Km by lowering the substrate's propensity to adhere towards the enzyme. At high substrate concentrations, the substrate outperforms the inhibitor, maintaining the reaction's Vmax.
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tonya wants to estimate what proportion of her school’s seniors plan to attend the prom. she interviews an srs of 50 of the 750 seniors in her school and finds that 36 plan to go to the prom.
According to the information provided, it should be highlighted that the 750 seniors in the school and made up population of interest, and interest parameter is percentage of seniors who intend to attend prom.
Additionally, a strictly random sample is required in order to create a confidence interval. Additionally, the sample size should be examined to see if it adequately represents the population.Using the z crucial of 1.645, a 90% confidence interval will be built. The sample fraction in this case will be:= 36/50 = 0.72
Q = 1 - 0.72 = 0.28
n = 50
As a result, the confidence interval will be equal to 50 squared times the combination of 0.72 and 0.28. This amounts to 0.0635.
For a big sample randomly selected among 750 seniors, the interval here on context suggests that we are 90% certain that the fraction of those who desire to attend the prom falls within the interval.
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if an object of mass 6.8 kg has an acceleration of 5.9 m/s2, what is the unbalanced force acting on it? use significant figures and correct units. the units (use the abbreviation of the derived unit, not the whole word) should be written in without a space after the numerical answer. do not put the units in parentheses.
The unbalanced force acting on the object is 40.2N if an object of mass 6.8 kg has an acceleration of 5.9 m/s2.
Given the mass of an object (m) = 6.8kg
The acceleration of object (a) = 5.9m/s^2
Let the unbalanced force acting on the object = F
This can be calculated using Newton's Second Law of Motion, states that:
We know that Force acting on an object = Mass x Acceleration = F = ma
Force is a vector quantity that is a measure of an interaction between two objects that causes a change in motion.
Therefore, Force = 6.8 kg x 5.9 m/s2 = 40.2 N.
The unbalanced force acting on the object is 40.2 N.
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Solve for w.
-w+150 = 220
Answer:
w = -70
Explanation:
[tex]-w+150 = 220[/tex]
[tex]-w = 70[/tex]
[tex]w = -70[/tex]
Answer: w = -70
Explanation:
To solve, we will isolate with inverse operations.
Given:
-w + 150 = 220
Subtract 150 from both sides of the equation:
-w = 70
Divide both sides of the equation by -1:
w = -70
A single cubic centimeter of the human brain consists of well-over 50 million.
A single cubic centimetre of the human brain does not consist of well over 50 million of any specific structure or component. The number of neurons, glial cells, or any other type of brain cell can vary greatly depending on the specific region of the brain being considered.
How many cells are in a single cubic centimetre of brain tissue?It is difficult to accurately quantify the number of cells in a single cubic centimetre of brain tissue, as there is significant overlap and intermingling between different cell types.
In how many parts human brain is divided?The human brain is divided into several distinct regions, each of which plays a unique role in regulating various cognitive and physiological functions. Some of its parts are the cerebellum, cerebral cortex, thalamus and hypothalamus.
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two large parallel conducting sheets are charged with equal but opposite charges. what is the electric field in the space between the sheets?
The electric field in the space between the two parallel conducting sheets is zero.
This is because the electric field is generated by the difference in charge between two points, and because the two sheets have equal and opposite charges, the electric field between them is zero.
electric field : A physical field created by electrically charged objects is known as an electric field. It has an impact on how charged items behave when they are close to the field. Other charged things are affected by the electric field by being drawn to or repelled by it. Electric charges or shifting magnetic fields can produce electric fields.
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if a feeder supplied by a 4,160-volt system is protected at 400 amperes, what is the minimum-size aluminum equipment grounding conductor required for the circuit?
The minimum-size aluminum equipment grounding conductor required for the circuit would be 4 AWG.
The grounding conductor is necessary to ensure that the electrical system is properly grounded. This is an important safety measure that helps to ensure that any electricity that may leak or escape from the system is safely discharged into the ground, rather than being allowed to flow into the building or the surrounding area. It is also important for the proper functioning of the electrical system, as it helps to ensure that the system is properly balanced and that the voltage levels remain stable. The grounding electrode conductor (GEC) needs to be sized in order to be used for a single service.
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what is the maximum speed you could have and still not hit the deer? express your answer with the appropriate units. view available hint(s)
(a) The distance between you and the deer (you’re driving down the highway late one night at 20 m/s, when a deer steps onto the road 44 m in front of you) when you come to stop = 14 m.
(b) The maximum speed you could have and still not hit the deer = 25.80 m/s
How to determine the distance?The distance covered before to applying the brake = (20 x 0.5)
= 10 m
(v1² - v0²) = 2as
Where:
s = distance (m)
v = velocity
a = acceleration due to gravity (10 m/s²)
s = (0² - 20²) / (2 x 10)
= 20 m
(a) The distance between you and the deer:
44 - 30 = 14 m
So, the deer won't be struck by the car.
(b)
The maximum speed:
(v1² - v0²) = 2as
v1² = v0² - 2as
= (0² - (2 x (-10) x (44 - 0.5v0)
= 880 - 10 v0
v0 = 25.80 m/s
The question is incomplete, it should be:
You're driving down the highway late one night at 20 m/s when a deer steps onto the road 44 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your car is 10 m/s2.
Part A
How much distance is between you and the deer when you come to a stop?
Part B
What is the maximum speed you could have and still not hit the deer?
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