Acaterpillar uses a force of 34 n to crawl 30 cm across a branch. if the caterpillar's power is 1.02 w, how much time does the caterpillar's journey take?
a. 0.9 s
b. 10 s
c. 29 s
d. 33 s

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.

The movement of electrons between atoms is called an

What is similar between metals and suspensions