Bullet of mass embeds itself in a

wooden block with mass which then compresses a spring by a distance

before coming to rest. the coefficient of kinetic friction

between the block and table is (a) what is the

initial velocity (assumed horizontal) of the bullet? (b) what

fraction of the bullet’s initial kinetic energy is dissipated

(in damage to the wooden block, rising temperature, etc.)

in the collision between the bullet and the block?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.