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A 3.0-kg object moving in the positive xdirection has a one-dimensional elastic collision with a 5.0-kg object initially at rest. After the collision the 5.0-kg object has a velocity of 6.0 m/s in the positive xdirection. What was the initial speed of the 3.0 kg object?
An eagle glides in a diretion parallel to the ground, maintaining a constant velocity of 5.81 m?s^2. What are the new speed and direction
An airplane must have a velocity of 50 m/s in order to take off What must be the airplane acceleration if it is in to take off from a runway 50cm long?
A scuba diver and her gear displace a volume of 70.0L and have a total mass of 73.1kg. What is the buoyant force on the diver in sea water
a person scuffing her feet on a wool rug on a dry day accumulates anet charge of -46.6 microcoulombs. How many excess electrons does this person get
If a beam is incident normal (perpendicular to the surface) to a plane mirror, what is the angle of reflections
Two skaters each of mass 50 kg approach each other along prallel paths separated by 3 m. describe quantitativley the motion of the skaters after they have become connected by the pole
A 110-g bullet is fired from a rifle having a barrel 0.594 m long. Choose the origin to be at the location where the bullet begins to move. Determine the work done by the gas on the bullet
If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Estimate the frequency of the motion
A 1500-W heater is designed to be plugged into a 120-V outlet. What current will flow through the heating coil
exponential notation to represent numeric values
a small point charge having charge q is fixed a distance h above a thin infinitely long line of charge with charge
A light source for light scattering has a resistance of 160Ω. A DC voltage of 100 Volt is attached across it. Find the current through the source
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