A 2,511 kg railroad car moving at 4.192 m/s to the east collides with a 8,199 kg railroad car moving at 3.781 m/s to the west. If the cars couple together, what is their velocity after the collision?

As an apple falls from a tree, which types of energy are changing? O A. Elastic energy and sound energy O B. Light energy and gravitational potential energy O C. Kinetic energy and nuclear energy O D.

What type of force act on a man at room temperature and in a ground?

If the velocity of an object changes from 15 m/s during a time interval of 4s what is the acceleration of the object

If your mass is 60 kg on earth, what would your mass be on the moon?

A moving object always has energy in its?

Will make Brainlest! <3 Metals are considered to be good conductors of heat. How do the specific heat values indicate this?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.

Which of the following diagnostic procedures uses ultrasound?

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.