How much heat is needed to raise the temperature of 6g of water by 15°c

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.

If a star is moving toward earth, it is

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?