Calculate the volume of a black of expanded polystyrene of mass 560 g if it's density is 17 kg m-3

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

The energy equivalent of the rest mass of an electron is

Properties seen when one one substance changes to another are known as properties