Recent content by amw2829

3000 J(thermal energyinitial) + 500 J - 2000 = E thermalfinal = 5/3(1/2)mv2

I took that approach and my answer was still wrong.

1800(Initial Energy) + 500 - 2000 = 300 J Am I missing something or does the thermal energy also play a factor.

Homework Statement The rms speed of the molecules in 1.1 g of hydrogen gas is 1800 m/s. 500 J of work are done to compress the gas while, in the same process, 2000 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules...

F=weight of the fluid displaced.

I'm still not sure how to calculate that with the given variables.

From what I gathered it is a cylinder.

∏r^2h...but I don't have r

ρ1Vg + ρ2Vg ?

Homework Statement A less-dense liquid of density ρ1 floats on top of a more-dense liquid of density ρ2 . A uniform cylinder of length l and densityρ, with ρ1< ρ<ρ2, floats at the interface with its long axis vertical. What fraction of the length is in the more-dense liquid? Homework...

Homework Statement The ends of a "parabolic" water tank are the shape of the region inside the graph of y = x2 for 0 ≤ y ≤ 4 ; the cross sections parallel to the top of the tank (and the ground) are rectangles. At its center the tank is 4 feet deep and 4 feet across. The tank is 6 feet...