On earth a rock is dropped and falls 4.9 meters just before it hits the ground. how much time did the rock take to fall this distance

Where is this earthquake's epicenter? a. Tokyo, Japan b. Manila, Philippines c. Beijing, China d. Hong Kong, China

A student measures the speed of a rolling ball three times. She adds the measurements and divides by 3. What quantity did the student calculate?

A (n) 0.49 kg softball is pitched at a speed of 13 m/s. The batter hits it back directly at the pitcher at a speed of 23 m/s. The bat acts on the ball for 0.014 s. What is the magnitude of the impulse imparted by the bat to the ball?

How far can Hubble Telescope look into space?

What is the most important source of water vapor in the atmosphere?

A paragraph that can serve the specific purpose of creating a special effect within the essay is called? a. paragraph block b. functional paragraph c. unified passage d. topical paragraph

What are the steps that produce electricity from this fuel

Adrian read about a new antimicrobial in a popular magazine. The advertisement claimed that the product Bactokil prevents bacterial growth. So, Adrian conducted a controlled experiment to test the product claims.

A world-class sprinter can burst out of the blocks to essentially top speed (of about 11.5 m/s) in the first 15.0 m of the race. what is the average acceleration of this sprinter, and how long does it take her to reach that speed?

How are primary and secondary succession similar and how are they different?