This standing wave has a wavelength of 43,200 seconds.
What is an Erie Lake seiche?A seiche is a long-lasting standing wave that oscillates through a body of water, such as a lake or bay (pronounced "saysh"). The water level in a lake rises quickly at one end while falling at the other due to changes in atmospheric pressure or strong sustained winds from one direction.
What are standing waves or seizures?A seiche is a standing wave that moves in a manner like to a seesaw, with the strongest vertical oscillations occurring at the ends of a body of water and relatively tiny oscillations at the wave's "node," or center.
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Question:
Lake Erie is prone to remarkable seiches-standing waves that slosh water back and forth in the lake basin from the west end at Toledo to the east end at Buffalo. (Figure 1) shows smoothed data for the displacement from normal water levels along the lake at the high point of one particular seiche. 3 hours later the water was at normal levels throughout the basin; 6 hours later the water was high in Toledo and low in Buffalo.
What is the wavelength of this standing wave?
an ideal gas expands isothermally and reversibly to twice its original volume. which of the following statements are true?
a 2 uc point charge of mass 5 g is suspended on.a string placed a in a horizontal electric field equlibrium 17.3 vertical find the electric force on the charge
The nucleus and electrons are drawn to one another by the electric force. The void created by a positive or negative charge is referred to as an electric field since it generates a field there.
What is Electric force?If you had a positive charge just here, it would have an electric field surrounding it and affect the area in which it was located.
The same applies for a negative charge; it too has an electric field surrounding it. Now, opposite charges attract each other while like charges repel one another.
A positive charge here and a positive charge here, for example, would resist one another since they are similar charges.
Therefore, The nucleus and electrons are drawn to one another by the electric force. The void created by a positive or negative charge is referred to as an electric field since it generates a field there.
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which of the constructors below successfully updates the values of the newly constructed object's fields? (select all that apply) public class point { private int x; private int y; //constructor 1 public point() { int x
None of the provided constructors will change the values of the fields in the freshly created object.
public point()
{
this.x = 0;
this.y = 0;
}
When a new instance of an object belonging to a class is produced, a function Object() { [native code] }, a specific kind of method, is invoked. It is employed to initialise the fields of the object and establish their starting values. Constructors cannot have void as a return type and must have the same name as the class. Java will automatically create a default function Object() { [native code] } for you in the absence of a function Object() { [native code] } for a class. The default function Object() { [native code] } is not constructed, though, if you define a function Object() { [native code] } in the class. It's possible to have numerous constructors in a class, known as overloaded constructors, each with a unique set of arguments. Based on the arguments supplied to the relevant function Object() { [native code] } during object creation,
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A solid nonconducting sphere of radius R has a charge Q uniformly distributed throughout its volume. A Gaussian surface of radius r with r < R is used to calculate the magnitude of the electric field E at a distance r from thecenter of the sphere. Which of the following equations resultsfrom a correct application of Gauss’s law for this situation? And Why?1. E (4 p r^2) = (Q r^3)/( epsilon sub0 * R3)2. E(4pr^2)= (Q 3r^3)/ (epsilon sub0 * 4 p R)3. E (4 p r^2) = (Q) / (epsilon sub0)
Option 3 that is E (4 p r^2) = (Q) / (epsilon sub0) results from a correct application of Gauss’s law for this situation.
What is electric field?The electric flux through a closed Gaussian surface is proportional to the charge enclosed inside the surface, according to Gauss' law. Because the electric field is uniform at r from the sphere's center, the electric flux through a spherical Gaussian surface of radius r is proportional to the charge contained, Q, and the surface area, 4r2. As a result, the equation E (4 p r2) = (Q)/ is found. Option 1 and 2 are erroneous because they do not account for the uniform charge distribution throughout the sphere. The electric field at r from the center of the sphere is proportional to the charge enclosed within the Gaussian surface and the area of the surface, not to r3.
Here,
Option 3, E (4 p r2) = (Q) / (epsilon sub0), is the right application of Gauss' law in this scenario.
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express the position vector rab in cartesian vector form. enter the components of the vector separated by commas. express your answers in meters to three significant figures.
The cartesian form of the position vector Rah us given as x-3/-6 = y+2/6 = z/3.
The coordinates of the point a are (3, -2, 0) and the coordinates of the point b is given to be (-3, 4, 3).
Now, we have to express the position vector R into the cartesian form,
Now, we know the formula,
(x-x₁)/(x₂-x₁) = (y-y₁)/(y₂-y₁) = (z-z₁)/(z₂-z₁)
The values are like this,
x₁ = 3 and x₂ = -3,
y₁ = -2 and y₂ = 4,
z₁ = 0 and z₂ = 3.
Now, putting values,
(x-3)/(-3-3) = (y+2)/(4+2) = (z-0)/(3-0)
Solving further, we get,
x-3/-6 = y+2/6 = z/3
So, the cartesian form of the vector R is given as x-3/-6 = y+2/6 = z/3.
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how far (in m) is it from where they drop the rock to the bottom of the shaft? the speed of sound at the temperature of air in the shaft is 336 m/s. (round your answer to at least three significant figures. use g
The distance is equal to 2.28 km if rock is dropped to bottom of shaft when air temperature of shaft is given, if we round at least three significant figures.
The distance from where the rock was dropped to the bottom of the shaft can be calculated using the formula for free fall, which is the distance traveled by an object under the influence of gravity. Free fall is described by the equation:
[tex]d = 1/2 * g * t^2[/tex]
Where d is the distance traveled, g is the acceleration due to gravity ([tex]9.8 m/s^2[/tex]), and t is the time elapsed.
We can use the speed of sound to determine the time elapsed. The time elapsed is equal to the time it takes for the sound of the rock hitting the bottom of the shaft to travel back to the top of the shaft:
t = d / v
Where v is the speed of sound.
Substituting this into the free fall equation gives:
[tex]d = 1/2 * g * (d / v)^2[/tex]
Solving for d, we find:
[tex]d = (v^2) / (2 * g)[/tex]
Plugging in the given values of v = 336 m/s and g = [tex]9.8 m/s^2[/tex], we find that the distance is:
d = (336^2) / (2 * 9.8) = 336^2 / 19.6 = 44864 m / 19.6 = 2280 m
Rounding to three significant figures, the distance is approximately 2.28 km.
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Complete Question: How far (in metres) is it down the shaft from where they drop the rock? At the air's temperature in the shaft, the sound speed is 336 m/s. (Round your response to at least three decimal places. use g = 10
Particle motion DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The acceleration of a particle is defined by the relation a= k (1-e-x), where k is a constant. The velocity of the particle V +9 m/s whenx3 m and it comes to rest at the origin. Problem 11.021.b -Obtaining velocity from a position-dependent acceleration by integration etermine the velocity of the particle when x=-2 m. he velocity of the particle is -13.58 m/s
If the velocity of the particle when x=-2 m. The velocity of the particle is +4.70 m/s.
Velocity is a measure of the rate at which an object changes its position in a given direction. It is a vector quantity, meaning that it has both magnitude and direction. The magnitude of velocity is the speed of an object, and the direction is the path that the object takes. In physics, velocity is defined as the rate of change of an object's position with respect to time. It is expressed mathematically as the derivative of position with respect to time, or v = dx/dt.
The velocity of a particle can be constant, meaning that it moves at a constant speed in a straight line, or it can be changing, meaning that the speed or direction of the particle is changing. For example, a car traveling down a road at 60 miles per hour has a constant velocity. However, if the car slows down, its velocity is changing, and if it turns a corner, its velocity is changing in direction as well.
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Force exerted by wind on Willis Tower A 10.0-m/s wind blows against one side of the Willis Tower in Chicago. The building is 443 m tall and approximately 80 m wide. Estimate the average force of the air on the side of the building. The density of air is approximately 1.3 kg/m^3. Indicate any assumptions that you made.
According to the given Statement the average force is 235.824
Indicate any assumptions that has been made in the given question?The following assumptions are made - The wind is blowing perpendicular to the face of the building. The wind speed is constant and does not change with height. The drag coefficient of 1.0 is a rough estimate. This calculation assumes the wind is laminar and does not take into account any turbulence or vortex shedding that may occur in reality.
What is Drag coefficient (C)?The drag coefficient (C) is a dimensionless number that depends on the shape of the object. For a tall building with a flat face, such as the Willis Tower, the drag coefficient is approximately 1.0.
F [tex]=0.5*1.0*1.3*35840*10^{2}[/tex]
F = 235.824 N (approximately 53,000 pounds).
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in finding analytic solutions of forced differential equations, the initial conditions must always be evaluated after the expressions for the transient and steady state solutions have been combined. T/F
False. In finding analytic solutions of forced differential equations, the initial conditions should be considered along with the homogeneous solution and the particular solution.
The initial conditions provide specific values for the unknown coefficients in the general solution, which is a combination of the homogeneous and particular solutions. The process of finding the general solution involves evaluating both the transient and steady state solutions and then combining them, taking into account the initial conditions. A solution to a mathematical problem or a differential equation is an answer that satisfies the given conditions and rules. It can be an algebraic expression, numerical value, or a graph. Analytic solutions use mathematical techniques to find exact solutions, while numerical solutions approximate solutions using methods such as finite differences or integration. Both types of solutions are used to understand and make predictions about physical or real-world phenomena.
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A cart is given an initial velocity of 5.0m/s and experiences a constant acceleration of 2.0m/s/s. What is the magnitude of the cart's displacement during the first 6.0s of its motion?
Answer:
66.0 m
Explanation:
The magnitude of the displacement of a cart can be calculated using the equation:
x = x_0 + v_0 * t + 0.5 * a * t^2
So, the magnitude of the displacement during the first 6.0 s of its motion is given by:
x = 0 + 5.0 m/s * 6.0 s + 0.5 * 2.0 m/s^2 * 6.0 s^2
= 30.0 m + 36.0 m
= 66.0 m
consider a naca 2412 airfoil with chord of 0.64 m in airstream at standard sea level conditions. the free steam velocity is 70 m/s. lift per unit span is 1254 n/m. using lift coefficient (cl) and drag coefficient (cd) data from figures below find: a. reynolds number of the flow over the airfoil. (3 points) b. angle of attack the airfoil is flying at. (3 points) c. drag force per unit span, in n/m. (6 points)
The airfoil's flow has a Reynolds number of 3013.5 N/m2 and is flying at a 23.77° angle of attack.
A chord on an aero foil is what?A chord line is a hypothetical straight line made between an aero foil's leading and trailing edges in the direction of the usual wind.
c=0.64m at sea level
V=70m/s at infinity
Lift per unit span is
L=1254N
The dynamic pressure is given as
Density of water at infinity p∞=1.23kg/m³
q=½p∞V∞²
q=½×1.23×70²
q=3013.5 N/m²
Now,
Lift coefficient is given as
Cl = L/qc
Cl= 1254 /(3013.5 × 2)
Cl= 0.83
Then, coefficient is given as
Cl=2πα
Where α is the required angle
α= Cl/2π
α = 0.83/2π
α=0.415rad
Now, 1 rad= 57.296°
Then, α=0.415rad =0.415×57.296°
α=23.77°
The angle attack is 23.77°
Or Cl can also be
Cl=2πSinα
Sinα=Cl/2π
Sinα=0.83/2π
Sinα=0.415
Then, α=arc sin(0.415)
α=7.24°
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nitialize the tuple team names with the strings 'rockets', 'raptors', 'warriors', and 'celtics' (the top-4 2018 nba teams at the end of the regular season in order). sample output for the given program:
Following is the code in python language
team_names = ('Rockets','Raptors','Warriors','Celtics')#holding the string value,print(team_names[0],team_names[1],team_names[2],team_names[3])#display
Output:
Rockets Raptors Warriors Celtics
What is the explaination of above statement?Make a dictionary called "team names" with the string values Rockets Raptors Warriors and Celtics.
Finally, we used the print function, passing the index of the matching dictionary, team names[0]. It will display the first index value similarly to how we passed team names[1, 2, 3].
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g determine quantities for the following circuit: a. the total resistance of the entire circuit b. the total current through the resistors c. the voltage drop across each resistor
(A) The total resistance of the circuit is 12 ohms.
(B) The total current flowing in the circuit is 0.5 A.
(C) The potential difference across R1 is 3.6V.
The resistance of two resistors connected in parallel can be calculated using the formula: [tex]1/R_{parallel} = 1/R1 + 1/R2[/tex]
In this case, the resistance of R2 and R3 connected in parallel is [tex]R_{parallel} = 1 / (1/8 + 1/12) = 1 / (0.125 + 0.083) = 1 / 0.208 = 4.8 ohms[/tex]
This 4.8 ohms resistor is then connected in series with R1 (7.2 ohms), and the total resistance of the circuit can be calculated as
[tex]R_{total} = R1 + R_{parallel} = 7.2 + 4.8 = 12 ohms[/tex]
The total current flowing through the circuit can be calculated as
[tex]I = V / R_{total} = 6V / 12 ohms = 0.5 A[/tex]
The voltage across R1 can be calculated as
[tex]V_{R1} = IR1 = 0.5A * 7.2 ohms = 3.6V.[/tex]
Therefore, the total resistance of the circuit is 12 ohms, the total current is 0.5 A, and the voltage across R1 is 3.6V.
Complete question:
In the circuit diagram given below, find:
(A) total resistance of the circuit,
(B) total current flowing in the circuit, and
(C) the potential difference across R1
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if a rock is thrown upward on the planet mars with a velocity of 19 m/s, its height above the ground (in meters) after t seconds is given by h
When the rock is thrown upwards with a velocity of 19m/s then velocity after 1s is 15.28m/s, the time the rock hit the surface is 10.21s and the velocity with which it hits is 18.98m/s
Given the velocity of rock is (v) = 19m/s
The height of rock above the ground = h = 19t − 1.86t^2.
The time taken to reach that height is = t
(a) We know that the change in velocity is seen as: v(t) = d(H)/dt
V(t) = d(19t − 1.86t^2)/dt = 19 - 2 x t x 1.86 = 19
At t = 1s then, V(1) = 19 - 2 x 1 x 1.86 = 15.28m/s
(b) When t = a then,
V(a) = 19 - 3.72a
(c) The rock hits the surface when the height = 0m such that;
H(t) = 0
19t - 1.86t^2 = 0
t(19 - 1.86t) = 0
t = 19/1.86 = 10.21s
(d) The rock hit the surface with the velocity obtained at height = 0m. Then, V(10.21) = 19 - 3.72(10.21) = 19 - 37.98 = -18.98m/s
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complete question: if a rock is thrown upward on the planet mars with a velocity of 10 m/s, its height (in meters) after t seconds is given by H = 19t − 1.86t^2.
(a) find the velocity of the rock after one second
(b) find the velocity of the rock when t=a
(c) when will the rock hit the surface
(d) with what velocity will the rock hit the surface?
Two city buses are traveling at 24 miles per hour. The buses are the same model and year. One bus has 30 passengers. The other bus has 12 passengers. Which is the best prediction?
A. The buses’ kinetic energies will depend on their routes.
B. The bus with 12 passengers will have less kinetic energy.
C. The bus with 30 passengers will have less kinetic energy.
D. The buses will have the same amount of kinetic energy.
The bus with 12 passengers will have less kinetic energy.
option B.
What is kinetic energy?The kinetic energy of an object is the energy possessed by an object due to its motion.
Mathematically, the formula for kinetic energy is given as;
K.E = ¹/₂mv²
where;
m is the mass of the objectv is the speed of the objectThe bus with greater number of passengers will have more kinetic energy and vice versa.
Thus, the bus with 12 passengers will have less kinetic energy and the bus with 30 passengers will have more kinetic energy.
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listed below are the results of measurements taken on several different junction diodes. for each diode, the data provided are the diode current i and the corresponding diode voltage v. in each case, estimate is and the diode current at 750 mv
For each diode, the data provided are the diode current (I) and the corresponding diode voltage (V).
In each case, you can estimate the diode saturation current (IS) using the equation ([tex]VT = kT/q \cdot \ln(IS/I)[/tex]), where (VT) is the thermal voltage and (k) is Boltzmann's constant.
To estimate the diode current at 750 mV, you can use the diode equation ([tex]I = IS \cdot (e^{V/VT}-1)[/tex]) with the value of ([tex]I_S[/tex]) calculated above.
Boltzmann's constant, also known as k or kB, is a physical constant that connects the average kinetic energy of a particle to its temperature.
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genetic engineering 10 concept
Class 10 Genetic Engineering:
Genetic engineering is the modification of the genetic information of living organisms by manipulating DNA. H. Adding, deleting, or repairing pieces of genetic material (DNA) to change the phenotype of an organism. Also known as genetic engineering or recombinant DNA (r-DNA) technology.
About Genetic engineeringGenetic engineering is a technique of modifying the genetic molecular composition of an organism so that it has new properties. Genetic engineering is the essence of biotechnology which aims to obtain superior organisms or products. Genetic engineering can be applied to any organism, from plants to animals and even humans.
But until now, genetic engineering is more often applied in the fields of food, agriculture, and certain microorganisms. Genetic engineering allows scientists to transfer or implant genes from one organism to another. It can also remove certain genes that are considered unfavorable from an organism.
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Black hole radius, large to small. What is the Schwarzschild radius of (a) the supermassive black hole with
4.0×10 10
solar masses in the Abell 85 galaxy cluster, (b) the imaged
M87
black hole with
6.4×10 9
solar masses, (c) an intermediate mass black hole with
1.0×10 4
solar masses, (d) the Sun, with mass
1.99×10 30
kg
, and (e) a micro black hole with a mass of
2.0×10 −8
kg
The Schwarzschild radius of different materials supermassive black hole and M87black hole are[tex]4.80528 \times 10^{-19} and 9.49 \times 10^{-18}[/tex] respectively.
What is a black hole's Schwarzschild radius?The distance connecting a Schwarzschild black hole's centre and event horizon is known as the Schwarzschild radius. The event horizon is positioned above the Schwarzschild radius, that starts at the black hole's centre. Black holes have a rather important characteristic called the Schwarzschild radius.
Schwarzschild radius (Rs)= 2GM/c²
G=> gravitational constant = [tex]6.674 \times 10^{-11} m^3/kgs^2[/tex]
c=> speed of light =>[tex]3\times10^{8}m/s[/tex]
M => solar mass
A) Rs of supermassive black hole =>
[tex]2 \times 6.674 \times 10^{-11} \times 4.0\times10^{1}0/(3\times10^{8})^{2} = 4.80528 \times 10^{-19}[/tex]
B) Rs of M87black hole
[tex]= 2 \times 6.674 \times 10^{-11} \times 6.4 \times 10^{9} /(3 \times 10^{8})^{2} = 9.49 x 10^{-18}[/tex]
C) Rs of intermediate mass black hole =
[tex]2 \times 6.674 \times 10^{-11} \times 1.0\times10^{4} /(3\times10^{8})^{2} = 1.48 x 10^{-23}[/tex]
D) Rs of the Sun =
[tex]2 \times 6.674 \times 10^{-11} \times\frac { 1.99 \times 10^{30}}{(3x10^{8})^{2}} = 2.95 \times 10^{3}[/tex]
E) Rs of micro black hole =>
[tex]2 \times 6.674 \times 10^-11 x\frac{ 2.0\times 10^{−8}}{(3 \times 10^8)^{2}} = 2.96 \times 10^{-35}[/tex]
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Complete question -
Black hole radius, large to small. What is the Schwarzschild radius of
(a) the supermassive black hole with 4.0×10^10 solar masses in the Abell 85 galaxy cluster
(b) the imaged M87black hole with 6.4×10^9 solar masses
(c) an intermediate mass black hole with 1.0×10^4 solar masses
(d) the Sun, with mass 1.99×10^30 kg
(e) a micro black hole with a mass of 2.0×10^−8 kg
ow do the tangential speeds of planets b and c compare to that of planet a ? in a clear, coherent paragraph-length response that may also contain equations and/or drawings, provide claims about
G stands for gravity constant.
The two items' masses are m1, m2.
r represents the distance between the items.
For the pair Star A-Planet A
Therefore, the star B's gravitational pull on planet B is 4F0 times as strong.
What is the planets' tangential velocity?The ratio of the angular velocity to the orbit's radius yields the tangential velocity. It may also be calculated by dividing the orbit's radius by the motion's time period.
The centripetal force, which accelerates the Earth toward the Sun and causes it to circle in an orbit, is caused by the gravitational attraction of the Sun.
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For a particle with curvilinear motion, which of the following is always tangential to the motion path? Position vector Velocity vector Acceleration vector None of the above
The velocity vector is always tangential to the motion path for a particle with curvilinear motion. The velocity of a particle describes the rate of change of its position over time and its direction is always tangent to the path of the particle's motion.
What does the acceleration vector describe?The acceleration vector describes the rate of change of the velocity and its direction can be either tangential or normal to the motion path, depending on whether the particle is changing speed or direction.
Are vector and scalar different from each other?Yes, vectors and scalars are different. A scalar is a physical quantity that has only magnitude and no direction. A vector, on the other hand, is a physical quantity that has both magnitude and direction, such as velocity, force, or displacement.
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a 12v battery delivers 3.5A at 10.95. Determine the internal Resistence of cell.
According to Ohms law, the resistance in a circuit is the ratio of its voltage to the current across the circuit. The resistance of the circuit with 12 v and 3.5 A current is 3.4 ohms.
What is Ohm's law?Ohm's law is one of the fundamental law in physics. It states that, the voltage over a circuit is the product of the resistance and current through the circuit.
hence, V = IR
Therefore, the voltage through a circuit is directly proportional to the current and resistance through the circuit. As the resistance increases, current through the circuit decreases.
The voltage in the cell = 12 V
current I = 3.5 A.
then internal resistance R = V/I
R = 12/3.5 = 3.4 Ω
Therefore, the resistance in the cell is 3.4 ohms.
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All forces on the bullets cancel so that the net force on a bullet is zero, which means the bullet has zero acceleration and is in a state known as _____
For the following pairs of voltages and currents, indicate whether the element involved is a capacitor, an inductor, or a resistor, and find the value of C, L, or R if sufficient dataare given:a. v=550 sin(377 +50°)i = 11 sin(3771-40°)b. v36 sin(7541 - 80°)i = 4 sin(754t-170°)c. v =10.5 sin(wt-13°)i = 1.5 sin(wt-13°)
The formula for the speed of light, c, is 299792458 m/s x 3 x 108 m/s. Light travels at a speed of 186,000 mile per hour. Light travels through air at a speed of 299792 km/s.
Is there any connection between voltage and current?The relationship between flow, voltage, and resistance is described by Ohm's Law. This states that the current in a circuit is directly proportional to the voltage supplied or inversely related to the circuit resistance if the temperature is constant.
Can voltage exist without current?Given that current is what causes a charge to flow, voltages can exist without current. Voltage is the primary factor that drives current flow, with the exception of theoretical superconductors, hence current cannot exist without voltage.
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the wheels on a car are spinning at 625625625 revolutions per minute. the car travels 888 feet every time the wheels spin around 111 revolution. what is the speed of the car in miles per hour? (round your answer to the nearest whole number. 1\,\text{mile}
The speed of the wheel on a car is 377 miles per hour. The result is obtained by using the equation of angular speed in relation to linear speed.
What is angular speed?An angular speed is a speed of an object in rotational motion. The angular speed in relation to linear speed is
ω = vr
Where
ω = angular speedv = linear velocityr = radius of a circleThe wheel on a car is spinning.
ω = 625 rev/minIt travels 8 feet/revolutionFind the linear speed of the wheel!
1 revolution means a circle of the wheel. The perimeter of the wheel is 8 feet.
The radius of the wheel is
P = 2πr
8 = 2(3.14)r
r = 8/6.28
r = 1.274 feet
r = 1.274 × 0.3048 m
r = 0.3883 m
We change the unit of angular speed to rad/s.
ω = 625 rpm
ω = 625 × 2π/60 rad/s
ω = 65.42 rad/s
The linear speed will be
ω = vr
65.42 = v(0.3883)
v = 65.42/0.3883
v = 168.5 m/s
Remember that 1 m/s = 2.237 mph.
v = 168.5 × 2.237 mph
v ≈ 377 mile per hour
Hence, the wheel of the car has the speed of 377 mile per hour.
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calculate the velocity at time 2.1 s for a ball thrown straight up with an initial velocity of 15.0 m/s. take the point of release to be y0
Answer:
v = -5.38 m/s
Explanation:
can be calculated using the kinematic equation for vertical motion under constant acceleration (gravitational acceleration):
v = v_0 + a * t
v = 15.0 m/s + (-9.8 m/s^2) * 2.1 s
= 15.0 m/s - 20.38 m/s
= -5.38 m/s
a square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w (fig 7.19) a uniform magnetic field b points to the right. find the e(t) for this altenrating current generator
The magnitude of induced emf is:∣ϵ∣ = dt/dϕ
= dt/d
BA=A dt/dB
=πr 2 α
It claims that the orientation is always such that it will counteract any flux changes.
How does Faraday's Law define induced emf?We are aware that the induced emf in a coil equals the rate of change of flux linkage thanks to Faraday's second law of electromagnetic induction. E thus equals N d d t.
Any time the magnetic flux changes in a closed circuit, an emf is generated. This electromagnetic field is known as the induced field, and the current flowing in the closed circuit is known as the induced current.
Heinrich Lenz came up with it in 1833. Lenz's law provides the direction in which current will flow, whereas Faraday's law provides the amount of the EMF generated.
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Which of the following scientists is most directly responsible for ushering in the communications age in the 20th century?
Galileo
Newton
Maxwell
Michelson
Carnot
James Clerk Maxwell is most directly responsible for ushering in the communications age in the 20th century.
He developed a set of equations that described the behavior of electric and magnetic fields and their interactions with each other. These equations, known as Maxwell's equations, form the foundation of our understanding of electromagnetism and helped pave the way for many of the technological advancements in the fields of communications and electronics in the 20th century. The concept of electromagnetic waves, which Maxwell described in his equations, is the basis for our modern-day technologies like radio, television, and cell phone communication. Therefore, Maxwell's work is considered a cornerstone of the communications age and his contributions are greatly valued in the field of physics.
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determine if the correspondence is a function. domain a set of circles. correpsondance the circumference of each curcle. rnage is a aset of nmbers
Ascertain whether the correspondence serves a purpose. Domain a circled pattern The diameter of each circle corresponds. a range of numbers
What is the meaning of ascertain?
1 to come to an awareness of. was immediately able to ascertain that the girl was uncomfortable talking about her life at home. Synonyms for ascertain. catch on (to), discover, find out, get on (to), hear, learn,
What is the difference between ascertain and ensure?
ascertain - be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product". insure, see to it, ensure, check, assure, control, see.
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consider an electrical circuit that consists of a battery, a mechanical switch, and a light bulb connected to form a single loop. which of the following statements are true about this circuit?
Complete question: Statements are: (Select all that are true)
Electrical current is generated by the battery and is only capable of flowing while the switch is in the closed position. Since there is no resistance in the circuit, when the switch is turned to the closed position, the voltage is the same throughout the whole circuit. When the switch is turned to the closed position, the circuit has no resistor, hence there is no resistance in the loop. Only when the switch is in the closed position does the filament of the light bulb transform the energy in the battery into light and heat.The true statements in electric circuit: Battery serves as motor flow when current is on. When switch is closed filament turns bulb's energy into heat and light.
In an electrical circuit that consists of a battery, a mechanical switch, and a light bulb connected to form a single loop, the battery acts as the driving force for an electrical current.
The switch regulates the circuit's current flow. When the switch is flipped to the closed position, a current will flow in the circuit, but when the switch is flipped to the open position, the current will stop flowing.
The presence or absence of resistance in the circuit affects the flow of current. In this circuit, there is no resistor, so there is zero resistance in the loop when the switch is flipped to the closed position.
Only when the switch is in the closed position does the filament of the light bulb transform the energy in the battery into light and heat.
This circuit is a simple example of how electrical circuits can be used to control the flow of electrical energy and convert it into useful forms of energy, such as light and heat.
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which of the following describes the total mechanical energy of the object-earth system during the time in which the object is in the air and the time in which the object is in contact with the spring? assume all frictional forces are considered to be negligible. responses
The total mechanical energy of the object-Earth system remains constant throughout these two stages, assuming that there are no external forces such as friction or air resistance. This is known as the law of conservation of energy.
Mechanical energy is the energy that an object possesses due to its motion and position. It is the sum of kinetic energy, which is the energy an object has due to its motion, and potential energy, which is the energy an object possesses due to its position or state. Mechanical energy is an important concept in physics as it can be transformed from one form to another, but the total amount of energy in a closed system remains constant.
Mechanical energy plays a crucial role in various everyday activities, from the operation of machines to the movement of objects. Understanding the concept of mechanical energy is important for engineers and scientists in fields such as mechanics, thermodynamics, and materials science.
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