When a pendulum is at the center position, what is true of the kinetic and potential energy?

If you quadruple the temperature of a black body, by what factor will the total energy radiated per second per square meter increase?

A ball is thrown vertically into the air with a initial velocity of 20 m/s. Find the maximum height of the ball and find the amount of time needed to reach the maximum height.

with the height being 10 m tall how much kinetic energy will a device have to cancel assuming the device weighs 2 kg?

Predict what metallic compound forms when sulfuric acid reacts with magnesium metal

Two laws are described below: Law A: It can be broken under certain conditions. Law B: It does not focus a on natural phenomenon. Based on these characteristics, what can you conclude about Law A and Law B?

A roller coaster is entering a vertical loop which has a radius of 25.0 m. If the coaster is traveling at 45.0 m/s as it enters the loop, how much is the centripetal force that you experience? (Assume your mass to be 75.

Which best describes tropical continental climate during the summer? A. clear, dry weather, B. cloudy, wet weather, C. cold, dry weather, D. hot, dry weather

At the beach, describe where or when you would see wave fronts. How are wave fronts useful to surfers?

How would the moon appear from earth if the moon did not rotate?

Block B has mass 4.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass 2.00 kg and sits at rest on top of block B. The coefficient of static friction between the two blocks is 0.400.