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A train car with mass m1 = 594.0 kg is moving to the right with a speed of v1 = 7.4 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 4.7 m/s.1) What is the initial momentum of the first train car?2) What is the mass of the second train car?3) What is the change in kinetic energy of the two train system during the collision?
Two identical objects each hold a net charge of q = 9e. If the gravitational force between the two objects exactly cancels the electrostatic force between the objects, what is the mass of each object
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 5000N/C, Find the speed of the particle if it is a proton
A golf ball strikes a hard, smooth floor at an angle of 24.7 ° and, as the drawing shows, rebounds at the same angle. compute the magnitude of the impulse applied to the golf ball
What is magnitude of the speed of the boat
An early method of measuring the speed of light makes use of a rotating slotted wheel. A beam of light passes through one of the slots at the outside edge of the wheel, find the linear speed of a point on the edge of the wheel
q1. a boat crosses a river of width 115 m in which the current has a uniform speed of 1.39 ms. the pilot maintains a
Neutron stars, such as the one at the center of the Crab Nebula, what would you weigh on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0 km
What is speed of the second train, which travels faster
The train comes to a stop 6m from the point at which it was released. What is the magnitude of train's acceleration after its wheel begins to stick.
The water in a tank is at a gauge pressure of 259,145 Pa. If the bottom of the tank that has an area of 0.5 m2
two point charges are located on the y axis as follows: charge q1 = -1.50nC at y1 = -0.550m , and charge q2 = 4.10nC at the origin, What is the magnitude of the net force
Find out the magnitude of that push.
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