An inclined plane is 30 meters long and 2 meters high. What is the mechanical advantage of the inclined plane? MA =

A solid 0.7150-kg ball rolls without slipping down a track toward a loop-the-loop of radius r = 0.9150 m. what minimum translational speed vmin must the ball have when it is a height h = 1.

4) A motorcycle travels at a constant 90 km per hour in the positive direction down a straight line highway. What is the displacement, in standard units, of the car 75 seconds later?

What is true about all uranium atoms? they each have the same number of nuclear particles. they each have the same number of neutral particles. they each have the same number of neutrons. they each have the same number of protons.?

A small box of mass m1 is sitting on a board of mass m2 and length L (Figure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between the board and the box is? s.

A worker standing on a freshly mopped floor is adjusting products on a metal shelf. There is an exposed wire in contact with the shelving. What is this an example of? Select the best option.

The stored energy an object has due to its position is potential energy. True or False?

Describe two changes of state that releases energy

A student is trying to determine if a solution is acidic or basic. She does not have any litmus paper. Which would she most likely use to get a reading on her solution? vinegar soap cabbage juice aquarium water

How many grams of ice at 0°c will melt if 1.50 kj of heat are added? (the molar heat of fusion of water is 6.01 kj/mol.) 4.49 g 12.0 g 7.51 g 2.99 g?

Describe two ways of detecting black holes in space.