Which of the following is necessary for the greenhouse effect?

The oceans

The land

The seasons

The atmosphere

A car battery seems to be malfunctioning (not providing the proper voltage and current to start your car).

13) The frequency of a vibrating string varies inversely as its length. A string 3 feet long vibrates 175 cycles per second. Find the frequency of a 5 foot string.

A 7kg bowling ball is at rest at the end of a bowling lane. You push the ball with a force of 22N which induces a - 1N of friction force so the ball accelerates 3m/s/s. What is the net force acting on the ball?

A kid at the junior high cafeteria wants to propel an empty milk carton along a lunch table by hitting it with a 3.0g spit ball. If he wants the speed of the 40g carton just after the spit ball hits it to be 0.30 m/s, at what speed should his 3.

Describe the energy change in the particles of a substance during melting. A) The kinetic energy of the particles remains unchanged. B) Absorbed energy results in the change in potential energy.

A (n) 1555.4 kg car is coasting along a level road at 40 m/s. A constant braking force is applied, such that the car is stopped in a distance of 55.6 m. What is the magnitude of the braking force? Answer in units of N.

A hot spot is an area where material from deep within the mantle rises and melts through the crust above it. True or False

Disabling asthma attacks can lead to restrictive school activity of approximately

What is the force behind mass movements

You have a rock with a volume of 15 cm 3 and a mass of 45 grams. What is its density?