What is the potential energy of a 3 kg - ball that is on the ground?

26. What are the 2 conditions required for work to occur?

To solve a problem using the equation for keplerâs third law, enrico must convert the average distance of mars from the sun from meters into astronomical units. how should he make the conversion?

When the forces on an object are balance, what is the object's total net force?

Which of the following will not conduct an electrical current? a. pure water b. tap water c. aquarium water d. ocean water

If you put a pencil in a cup of water, it looks as if it is bent and larger in the water. This is because waves A) can reflect off the surface. B) are absorbed instead of reflected. C) bend around a barrier, like light does.

What is an example of a third class lever and why use it? A) pulley; changes direction B) baseball bat; increases velocity Eliminate C) car jack; increases the weight it can lift D) wheel barrow; makes it easier to move a load

1. The horizontal and vertical components of a projectile's velocity are a. directly proportional C. independent of each other b. inversely proportional d. equal

Which features involve compression? Select the three correct answers. A. Reverse faults B. Anticlines C. Folded mountains D. Normal faults E. Monoclines

You place a cup of 210 degrees F coffee on a table in a room that is 68 degrees F, and 10 minutes later, it is 200 degrees F. Approximately how long will it be before the coffee is 180 degrees F? Use Newton's law of cooling:

What change occurs to the mass of an object when an unbalanced force is applied to it? A. The mass increases. B. The mass decreases. C. The mass remains the same. D. The mass reduces to zero. E. The mass changes by an indeterminate amount.