What is 25 degrees celsius equal to in fahrenheit? i need to know how to do it to, so give me a formula, and it would if you showed your work?

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.

Argon, neon, and xenon are examples of

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?