What is the change in velocity if the final velocity is 80 mph and the initial velocity is 20 mph? Is the object speeding up or slowing down?

A 55 kg skater at rest on a frictionless rink throws a 3 kg ball, giving the ball a velocity of 8 m/s. What is the velocity of the skater immediately after?

In a collision between two unequal masses, which mass receives a greater magnitude impulse?

Two charged particles are placed 2.0 meters apart. the first charge is + 2.0 e-6 c and the second charge is + 4.0 e-6 c. what is the electrical force between the two charges?

A scientist in a lab would like to determine if an object conducts electricity. Which of the following experiments would test this? A. Place the object on a source of heat, and measure the time it take to heat up. B. Float the object in water. C.

The ocean may pull away rom the shore as a tsunami approaches?

In tae-kwon-do, a hand is slammed down onto a target at a speed of 10.5 m/s and comes to a stop during the 2.13 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.400 kg.

If you looked at the frequently spectrums of two friends saying the word dog, would they look the same or different ?

Which of the following atoms has the smallest radius? The Periodic Table

When do centromeres split

Who passes on dyslexia the mother or the father