How could you increase the sliding friction between the sled and track? How could you decrease it?

Find the magnitude of the angular acceleration α of the swing bar. be sure to use the absolute value function in your answer, since no comparison of m1, m2, and mbar has been made.

The experiment is repeated with a piece of paper between the paperclip and the magnet. How might this affect the results Jack obtains? Explain your reasoning.

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Surrounding every moving electron is a. an electric field b. a magnetic field c. both a and b d. none of the above

List inner planets and outer planets

Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not science?

Ashlee pours some quantity of orange juice in a glass. She accidentally breaks the glass and juice spills all over the floor. Which characteristic of the juice will change? A. mass B. State C. Shape D. Volume

A car travels along a straight road at a steady 40 MPH. Are the forces on the car balanced or unbalanced? Explain.

Why doesn't a ball roll forever after being kicked at a soccer game!

When analyzing forces, it is allowable to break the motion and forces into horizontal and vertical components.