A water tank has a mass of 3.64 kg when empty and 51.8 kg when filled to a certain level. What is the mass of the water in the tank?

Under constant acceleration the average velocity of a particle is half the sum of its initial and final velocities. Is this still true if the acceleration is not constant? Explain.

Pressure and volume changes at a constant temperature can be calculated using a. Boyle's law. c. Kelvin's law. b. Charles's law. d. Dalton's law.

a wave is travels 78 m in 3.23sec. if that wave has a wavelength of 0.5m then what was its frequency

Which of the following mechanical waves has the most energy A B C D

Why is wood a renewable resource? A) We use it over and over again. B) It takes millions of years to replace. C) Trees grow everywhere, so we always have some. D) It can be replaced in a reasonable amount of time.

What's the difference between mass & weight & how they are measured

Use the graph of distance versus time to complete the sentences. The cars on the higher track travel the cars on the lower track, in the same time. This means that the cars on the higher track have a average speed than those on the lower track.

List at least 3 physical properties that the professor describes of his newly discovered flubber

7. Who is Mara Grunbaum?

How much work is done in holding a 10 newton sack of potatoes while waiting in line at the grocery store for 3 minutes.