A spring with a constant of 120 N/m stretches by 0.02 m. What is the potential energy of the spring

Which of the following statements is true? Question 18 options: Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not.

When is the potential energy of a pendulum at its greatest?

How much power is required to lift a 60 kg bed to the top of a 3 meter flight of stairs in 10 seconds? A. 17.6 W B. 176 W C. 1760 W D. 17600 W

An old man wanted to leave all of his money to one of his three sons, but he didn't know which one he should give it to. He gave each of them a few coins and told them to buy something that would be able to fill their living room.

If the rifle is stopped by the hunter's shoulder in a distance of 3.16 cm, what is the magnitude of the average force exerted on the shoulder by the rifle? Answer in units of N. mass of bullet = 0.

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding? 30 583 12000 332500

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh

In an experiment, the control is never changed by the scientist not important to the scientist not recorded by the scientist changed by the scientist

When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?

All describe work except A) a team of dogs dragging a sled B) a jokey sitting on a horse C) a bowler lifting a bowling ball