A 275 g block of ice at -10.0°C is released from rest on a 32.0° incline. After 7.00 s, it has
traveled 12.5 m. If all the work done by friction between the ice and the incline is converted to
heat, what is the change in temperature of the ice?

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.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point