In order to be sure that the results of our experiment can be reproduced, we should

A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well. the farmer uses a force f1=57.5 n to pull the bucket of water upwards. the total mass of the bucket of water is f2 = 3.9kg.

Which branch of science includes the laws of matter and energy?

Alternate energy source produced from atomic reactions

Bill nye sound worksheet

dam is used to block the passage of a river and to generate electricity. Approximately 58.4 x 103 kg of water falls each second through a height of 20.1 m.

Which statement is true? The speed of sound in air is inversely proportional to the temperature of the air. The speed of sound in air is directly proportional to the temperature of the air.

What is the molar mass of an ideal gas if a 0.800 g sample of this gas occupies a volume of 200. mL at 50.0 oC and 720. mm Hg?

When unequal resistors are connected in parallel in a circuit,?

A piano tuner hears three beats per second when a tuning fork and a note are sounded together and six beats per second after the string is tightened. What should the tuner do next, tighten or loosen the string? Explain.

How much work is done? A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The answers are 3.0 J, 9.0 J, 27 J, 81 J.