A person is standing in an elevator that is traveling up but is slowing down. the upward normal force exerted by the floor on the person is

What is the potential difference if a resistance of 20 ohms produces a current of 10 amperes?

How does a battery work? explain

What is a solenoid? a current-carrying wire with many coils a current-carrying wire that is straight a tool used to measure magnetism a tool used to measure current

According to general relativity, light : travels along a curve due to length contraction travels in a straight line travels along a curve due to uniform speed travels along a curve due to uniform gravity

A bicycle moves at a constant speed of 4m/s. How long will it take the bicyclist move 36m? Use this answer by graph

One tuning fork vibrates at 440 Hz, while a second tuning fork vibrates at an unknown frequency. When both tuning forks are sounded simultaneously, you hear a tone that rises and falls three times per second.

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.

A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What is the weight of the gasoline displaced by the paraffin? b.