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Q1. A 3.72 g bullet moving at 290 m/s enters and stops in an initially stationary 3.30 kg wooden block on a horizontal frictionless surface.
What's the speed of the bullet block combination?
What fraction of the bullet's kinetic energy was lost in this perfectly inelastic collision?
How much work was done in stopping bullet?
If the bullet penetrated 5.00 cm into the wood, what was the average stopping force?
Q2. A super tanker with the mass of 3.36 × 109 kg is moving with a constant velocity. Its engines generate a forward thrust of 4.11 × 105 N. Determine (a) magnitude of the resistive force exerted on the tanker by the water and (b) magnitude of the upward buoyant force exerted on the tanker by the water.
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
The diodes are oppositely oriented, so that when one diode is forward-biased, the other is back-biased. Which phrase best describes the current in the circuit.
What was the speed of the car before impact
How much time passes by they collide
Illustrates the difference between acceleration and velocity
What is the magnitude of the current in the wire as a function of time?
What is an initial speed given to the rock
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..
Discover the magnetic field on the z axis What happens if the block is immersed in carbon disulfide
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
How much time takes to release net radiant energy from body
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