Which of the following is the tendency for a material to oppose the flow of electrons and change electrical energy into thermal energy?

A. resistance

B. volts

C. Ohms

D> electric current

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 73 kg, and the height of the water slide is 11.8 m.

1. When is positive work done on a system? When is negative work done?

After an average acceleration of 3.47 m/s 2 during 2.85 s, a car reaches a velocity of 14.5 m/s. Find the car's initial velocity.

A motorcycle is moving at a speed of 21 m/s. The driver applies the brakes, giving hum an acceleration of - 2.4 m/s^2. After 2 seconds of braking, what is the speed of the motorcycle? A. 25.8 m/s B. 16.2 m/s C. 4.8 m/s D. 2.4 m/s

Predict sam's state of wellness if he intentionally isolates himself from other people. A. Sam is not well because he's had the flu for a week. B. Sam is not well because he's tired. C. Sam is not well because he's neglecting his social health D.

In what state do hydrogen and helium exist in a star

13) The frequency of a vibrating string varies inversely as its length. A string 3 feet long vibrates 175 cycles per second. Find the frequency of a 5 foot string.

Match the following. 1. energy a push or a pull 2. mechanical energy energy of a moving object 3. kinetic energy a force directed away from an object 4. heat the ability to do work 5. work a force moving an object through a distance 6.

Scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

The 3 stages of the water cycle are