Abody 'a' of mass 0.3 kg is dropped from a certain height. at the same time, another body of mass 0.1 kg is thrown up vertically from the ground with an initial velocity of 10ms-1. find the acceleration of the centre of mass of the system of 2 bodies. also describe motion of centre of mass.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.