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A 1800 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.00 m before coming into contact with the top of the beam, and it drives the beam 16.0 cm farther into the ground before coming to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest.
Two equally charged insulating balls each weigh 0.40 g and hang from a common point by identical threads 45 cm long. The balls repel each other so that the separation between their centers is 6.6 cm.
A tennis ball of mass 57 g is traveling in the + x direction with a speed of 38 m/s. What is the change in momentum of the ball during the hit
You are climbing in the High Sierra where you suddenly find yourself at the edge of a fog-shrouded cliff, how high is the cliff if the speed of sound is 330 m/s
You are playing raquetball at the rec center. When you are 10 m away from the wall you hit a ball 24 m/s towards the wall at an angle of 30 degrees. How high above the launch point does the ball hit the wall
How far from the point of the drop will the rock hit the ground.
What is the total dose equivalent of 1 rem of fast neutrons, 0.5 rad of low energy betas, 25 ergs per gram of thermal neutrons, and 150 mR of diagnostic x-rays
A 0.200-kg block along a horizontal track has a speed of 1.80m/s at once before colliding with a light spring of force constant 44.2 N/m located at the end of the track.
A small immersion heater can be used in a car to heat a cup of water for coffee or tea. suppose the manufacturer's claim of 60% efficiency.
Explain how many pellets must be added to 450 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container.
An underwater scuba diver sees the Sun at an apparent angle of 42.0° from the vertical. What is actual direction of the Sun
A flywheel having constant angular acceleration requires 4.30 to rotate through 166. Find the angular acceleration of the flywheel
An electron moves at a speed of 14000 m/s in a circular path of radius 2.4 cm in a solenoid. Find the strength of the magnetic field inside the solenoid
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