A rock with mass of 5.0 kg is carried up a small hill 10 meters high. how much work had to be done in carrying the rock up hill? w = 490 j 4900 j 245 j impossible to tell because velocity not given

Calculate the force experienced by a positive test charge of 8.1 * 10-9 coulombs if the electric field strength is 9.4 * 107 newtons/coulomb.

Which is a heterogeneous mixture? a mug of hot cocoa a glass of tap water a gallon of milk a jar of mixed nuts

Which of the following is a part of the geocentric model? All objects in the universe are perfect spheres. All objects in the universe move around the sun. All objects in the universe revolve around Earth.

In a charge-free region of space, a closed container is placed in an electric field. Which of the following is a requirement for the total electric flux through the surface of the container to be zero? (hw 2a. 6) A.

How many electrons are in the outer shell of calcium

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement

If you were told an atom was an ion, you would know the atom must have a

When a potential difference of 13 V is placed across a resistor, the current in the resistor is 1.4 a. What is the resistance of the resistor?

Person with a mass of50 kg jumps up from the earth with an acceleration of 20 newtons. what is his acceleration?