You throw a ball straight up with an initial velocity of 15.0 m/s. It passes a tree branch on the way up at a height of 7.00 m. How much additional time will pass before the ball passes the tree branch on the way back down?

The steam created from the boiler turns a turbine. What type of energy conversion does this represent? chemical energy to heat energy heat energy to mechanical energy steam energy to kinetic energy

If a resource is nonrenewable, it ___ A) exists in unlimited quantities B) can be replaced within 100,000 years C) exists in limited quantities D) can be replaced within 10 years

If Earth were completely blanketed with clouds and we couldn't see the sky, could we learn about the realm beyond the clouds? What forms of radiation might penetrate the clouds and reach the ground?

Goldberg's sleigh currently runs at 203mph, but he needs it to reach 400mph with all the packages he has to deliver. If Goldberg is delivering presents at an altitude of 5,813.

It takes eight minutes for light to travel to the closest star from the sun. True False

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head-on collision with a 14.0 kg raft moving to the right at 16.0 m/s. After the collision, the raft moves to the left at 14.4 m/s. Disregard any effects of the water.

How many significant figures does the number 91010.0 have?

Convert 9.75 millimeters to centimeters.

A 4357 kg roller coaster car starts from rest at the top of a 36.5 m high track. determine the speed of the car at the top of a loop that is 10.8 m high

A person runs at a speed of 4 meters per second. How far will the person travel in 40 seconds?