Is time real

If everything is relative to gravity

Fatigue strength is generally significantly improved by using high steel a. alloy b. yield c. hardened d. ultimate strength e. all of these

Suppose you are driving in a car. A truck drives past you, traveling in the same direction you are driving. Which statement best describes how the truck's motion will appear to you? A.

Which quantity best captures the concept of resistance? A. the ratio of voltage to current B. the product of power and voltage C. the ratio of power to current D. the ratio of voltage to power E. the product of voltage and current

A 24-g rifle bullet traveling 280 m/s buries itself in a 3.7-kg pendulum hanging on a 2.8-m-long string, which makes the pendulum swing upward in an arc. Part A Determine the vertical and horizontal components of the pendulum's maximum displacement.

Which set of items listed can be arranged to transform electrical energy into mechanical energy? A) motor, fan blades turning, wire B) magnet, wire, fan blades turning C) battery, wire, fan blades turning D) battery, magnet, heat

What does it mean that a form of energy might take more energy to harness than it provides? Are renewable resources always renewable, or can they become non-renewable? Why aren't renewable resources used for everything that we use energy for?

What would a sound wave do if it traveled from a gas to a liquid? •stop •stay the same speed •slow down •speed up

A rock is thrown downward into a well that is 7.92 m deep. Part A If the splash is heard 1.17 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.

Which drum would make a sound that fades away faster - one that makes a loud sound or one that makes a more mellow sound Why?

Which of the following is NOT a way to increase the solubility of a solid in water? A. crushing the solid B. shaking the mixture of solid and water C. raising the temperature of the water D. letting the mixture stand still a long time