A class of science students investigates and records short term effects of a tornado that destroyed an area near the school which change was not caused by the tornado a:trees were knocked down
b: species of squirrels became extinct
c: flooding damaged dam
d: Buildings were destroyed

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?