A270,000 kg rocket in gravity -free space expels 270 kg of fuel by exerting a force of 360 n on it. find the magnitude of the acceleration of the fuel

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.