A4 ft high, 3 ft diameter cylindrical water tank whose top is open to the atmosphere initially filled with water. now the discharge plug near the bottom of the tank is pulled nd a water jet whose diameter is 0.5 in streams out. the average velocity of the jet air is approximated as v = (2gh)^1/2, where h is the height of the water in the tank measured from the hole (a variable) and g is the gravitational acceleration. determine how long it takes for the water level in the tank to drop to 2 ft from the bottom.

Which fators influence ocean currents

How does the entropy of steam compare to the entropy of ice?

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.