Find the average frictional force
A 2.65 g bullet moving at 896 m/s penetrates a tree to a depth of 4.55 cm.
Use energy considerations to find the average frictional force that stops the bullet.
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At one instant the outer wall moves at a speed of 3.9 m/s, and an 83 kg person feels a 535 N force pressing against his back. What is the radius of the chamber?
A population has mean 53 and standard deviation 12. Calculate the mean of x bar for a random sample of size 10.
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A 2.65 g bullet moving at 896 m/s penetrates a tree to a depth of 4.55 cm. Use energy considerations to find the average frictional force that stops the bullet.
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps.
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What is the final (after cooling) temperature of this water? What is the final quality of this water? How much does the specific internal energy of the water decrease?
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