Which requires more work: lifting a 50kg box vertically for a distance of 2m, or lifting a 25kg box vertically for a distance of 4 meters. How do you know?

Describe at least two different objects that you think are magnetic and why do you think this objects are magnetic

A 65 kg rock climber has 30,000 J of potential energy. What is the height of the rock climber above the ground?

An AC generator has a maximum output emf of 4.20 x 102 V. What is the rms emf? (Remember ΔVrms = 0.707Vmax)

What is the mathematical relationship between voltage, resistance, and current?

100 minus 76 as a percent

In vacuum, red light travels at a greater speed than blue light does. a. true b. false?

When the sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.35 m/s at 52.0° below the horizontal. Calculate the speed of its shadow on the level ground. M/s?

How do the tension of the cord and the force of gravity affect a pendulum? A. They are the competing forces that act on a pendulum as it swings. B. They are the two factors that affect the period of a pendulum. C.

What is an example of static friction

What is the configuration of NE