Determine an expression for the velocity va of the cart a down the incline in terms of the upward velocity vb of cylinder
b. if h = 1.57 m, x = 3.17 m, and vb = 3.03 m/s, what is va?

electromagnetic waves travel through space with vacuums. give me brainliest if right.

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..

radiation

explanation:

heat is transmitted by radiation

tbh i don't know the answer for this question