What types of energy does a ball rolling down a hill have?

Write out an example of a chemical reaction

The data showed that there was no significant difference in healing times between the two groups, so the researcher concluded that calcium intake has no effect on bone healing time. Why is the conclusion of the researcher not justified?

What is the voltage of a circuit if the current is 6.2 A and the resistance is 18 ohms?

A car completes a journey in 2 hours. Its average speed over this journey was 45mph. Calculate the distance travelled by the car in miles.

The number of spiders in the house and the outside air temperature have an indirect relationship. What will happen to the number of spiders in the house as the outside air temperature decreases?

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N