a copper of mass 120g is heated in an enclosure to a temperature of 12.5c. it then taken out bof enclosure and hold in air for a min and dropped carefully into a copper calorimeter of mass 105g containing 200g of water of 20c% the temp of the water rises to 25c. calculate the rate at which heat is boiling from the pieces of copper​

What is the temperature in degrees celsius of a substance with a tempature of 49k

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

Frequency of electromagnetic waves that a radio station is assigned is called