Arocket is launched vertically at time t = 0. the elevation of the rocket is given by = ? 0.13 4 + 4.1 3 + 0.12 2 m , where t is in seconds. determine the maximum velocity of the rocket and the elevation at which it occurs

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

because if the tool that you are using is not balanced it there would be false mass.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

3. dark matter

empty space could also be a simple vacuum