What is the kinetic energy of an object that has a mass of 50.0 kg and a velocity of 18 m/s? A. 450 J B. 900 J C. 8,100 J D. 16,000 J

Describe the method that can be used to find the density of a liquid. Place a measuring cylinder on a ... Add the ... Record the mass of the ...

What type of substance is a catalyst? A. always a gas B. always a liquid C. always a powder D. A catalyst can be in many forms.

Uranium is an element that is often used in nuclear power plants. Uranium atoms are very large, and the substance can be dangerous if it is not carefully contained. What is true about all uranium atoms?

Suppose you increase your walking speed from 5 m/s to 12 m/s in a period of 2 s. what is your acceleration?

Which is a drawback to the use of oil shale to produce energy

What do you suppose would cause an atom to lose an electron?

Calculate the average speed of spacecraft orbiting mars

Two small spheres spaced 20.0 cm apart have equal charge. how many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 * 10-21 n?

Which characteristic would you expect from a sample with a pH of 9

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