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A 5.00-g bullet is fired with a velocity of 100.0 m/s toward a 10.00-kg stationary solid block resting on a frictionless surface.
1. What is the change in momentum of the bullet if it is embedded in the block?
2. In which case does the block end up with a greater speed?
3. What is the change in momentum of the bullet if it ricochets in the opposite direction with a speed of 99 m/s?
A bar 5.0 m long has its center of gravity 1.5 m from the heavy end. What is the weight of the bar
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A sled slides without friction down a small, ice-covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom is 9.00 m/s. Evaluate the speed of the sled at the bottom of the hill after the second run
The drawing shows Robin Hood (mass = 76.9 kg) about to escape froma dangerous situation. With one hand, he is gripping the rope thatholds up a chandelier (mass = 224 kg). When he cuts the rope whereit is tied to the floor, the chandelier will fall..
A .228g wires are stretched between two points 77.20 cm apart. The tension in the wire is 618N. Find the frequency of the first harmonic. Reply in units of Hz.
Two balls on a pool table collide. The balls have each a mass of 35grs and the collision can be considered elastic and in 1 dimension. If ball 1 is moving at 3 m/s to the right while ball 2 is moving at 1 m/s to the left, what are the final velocit..
The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 30 m radius of curvature
A 8.0 µC point charge and a 9.0 µC point charge are a distance L apart. Where should a third point charge be placed so that the electric force on that third charge is zero?
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.30 V. Find the voltage across the battery terminals
9 grams of Alum at 200 C and 21 grams of Copper anre dropped into 50 cm^3 of Ethyl Alcohol at 15 C. what was the intitial temp of the Copper
A 150g ball has a kinetic energy 27.2J. A) What's the magnitude of its momentum? Express your answer with the appropriate units. B) Use your answer to find its speed. Express your answer with the appropriate units.
two vectors and lie in the xy plane. their magnitudes are 3.54 and 7.08 units respectively and their directions are
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