A skier starts from rest and uniformly accelerates at 2 m/s2 down a slope. How far has the skier traveled at the end of 20 seconds? 40 meters 80 meters 200 meters 400 meters.

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

How is the gravitational force related to the distance between two objects?

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?