Ashley has a mass of 60 kg and is going 5.2 m/ s on her roller skates. How fast does Mitchell (with a mass of 55kg) have to be going to equal her momentum

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

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.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?