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A 46 gram marble moving at 2.3 m/s strikes a 24 gram marble at rest. Suppose the collision is perfectly elastic and the marbles collide head-on.
a) Find the speed of the first marble after the collision?
b) Find the speed of the second marble after the collision?
Determine the vertical component. when would a microphone at the other end first detect a disturbance.
An air conditioner connected to a 150 V rms ac line is equivalent to a 9.8 resistance and a 1.97 inductive reactance in series. What is the impedence of the air conditioner
How to find the length
a steel rod is 2.2m long amp must not stretch more then 1.2 mm when a 8.5 kn load is applied to it.knowing that e
An interstate highway has been built through a neighborhood in a city. What is the average late-night sound level
A woman with mass 55.0kg is standing on the rim of a large disk that is rotating at 0.470rev/s about an axis perpendicular to it through its center. Calculate the magnitude of the total angular momentum of the woman-plus-disk system
A pendulum consists of a 3.8 kg stone swinging on a 3.6 m string ofnegligible mass. The stone has a speed of 9.4 m/s when it passesits lowest point. (a) What is the speed when the string is at 64° to the vertical? (
consider the following situation. a block of mass 20 kg is initially at rest on an inclined that makes an angle of 37
a 65 kg man in a 5.9 kg chair tilts back so that all his weight is balanced on two legs of the chair. assume that each
A 25.0 kg child on a 2.00 m long swing is released from rest when the ropes of the swing make an angle of 60.0 degrees with the vertical. determine the childs speed at the lowest position
A suitcase full of gold sits at the bottom of a lake. A recovery diver finds that as he lifts the suitcase to the surface, What is the volume of the large suitcase
If astronauts could travel at v = 0.970c, we on Earth would say it takes (4.20 / 0.970)= 4.33 years to reach Alpha Centauri, 4.20 light years away. The astronauts disagree. How much time passes on the astronauts' clocks?
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