The following table shows information about three different objects sitting on a bookshelf. Some data are missing from the table!
Mass Height
Acceleration Due
to Gravity
3m
9.8 m/s
Object 1 4 kg
Object 26 kg
Object 3
9.8 m/s
2 m
98 m/s
What is the gravitational potential energy of object 1?
735 J
1176
176.4
196

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

What are some important factors to consider when choosing a warm-up before your workout?

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane