What do astronomers call a system that is composed of more than two stars

In electron-volts, how much work does an ideal battery with a 36.0 V emf do on an electron that passes through the battery from the positive to the negative terminal? (b) If 7.

What is the mass of a baseball that has a kinetic energy of 100 J and travel at 5 m/s

What is friction caused by?

As the temperature of an object rises, so does the A. kinetic energy of the object. B. mass of the object. C. thermal energy of the object. D. potential energy of the object.

For which of the following is the velocity constant (speed/direction does not change) ? Question 5 options: A. cat escaping a dog by running in a straight line and then up a tree at a constant speed of 30 mph B.

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?

What relates the net force exerted on an object to its mass and acceleration?