Why is the mechanical advantage of using a single pulley always 1? Assume there's no friction.

If a cheetah runs at 25 m/s, how long will it take a cheetah to run a 100 m dash?

Which factors are involved in earthquakes formation (multiple choice) A. rocks breaking B, stress decreases C, faults that remain stationary D, movement below surface Which statement describes the Mercalli scale?

High energy waves have Choose one answer. a. long wavelengths and low frequencies. b. long wavelengths and high frequencies. c. short wavelengths and low frequencies. d. short wavelengths and high frequencies

Malika is writing an essay about the Sun. Below is the first paragraph in the essay. The Sun is an average-size star that is located at the center of the solar system. This hot, glowing ball of gas has a diameter of 1,393,000 km.

Why generally metals are good conductor and non metals are bad conductor of electricity

The spinning of earth on its axis causes the apparent rising and setting of the

20 m/s can be an answer for velocity true or false

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F