7. how long does it take a ball rolling down a hill to change its speed from 3 m/sec to 34.5 m/sec
if it accelerates at a rate of 3.5 m/sec ? ?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

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 = 2.1 m below the tank bottom which is a = 7.4 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)