Recent content by wolly6973

I got it figured out. I had to convert the pressures from kPa to Pa, and the Temperature into Kelvins. Thanks for your help

So my equation should be (882+101.3)*4/3*pi*.5^3/4=101.3*4/3*pi*r^3/19 Which gives r=2.846 So the final diameter should be 5.692 mm This however is incorrect. Am I still missing something?

How do the atmospheric and hydrostatic pressures fit in?

Homework Statement A bubble rises from the bottom of a lake of depth 90 m, where the temperature is 4°C. The water temperature at the surface is 19°C. If the bubble's initial diameter is 1.00 mm, what is its diameter when it reaches the surface? (Ignore the surface tension of water. Assume...

So i get the final velocity as 1.667m/s, but I need acceleration to calculate work, and I don't have the time.

A small block of mass 0.91 kg slides without friction on a horizontal table. Initially it moves in a circle of radius r0 = 0.63 m with a speed 1.5 m/s. It is held in its path by a string that passes through a small hole at the center of the circle. The string is then pulled down a distance of r0...

Thanks for the help. Your explanation made it very easy to comprehend. I appreciate it.

I am having a tough time with this one... Body A of mass 4 kg is moving in the +x-direction with a speed of 15 m/s. Body B of mass 5 kg is moving in the -y-direction with a speed of 8 m/s. What are the x- and y-components of the velocity of the center of mass of the two bodies? How do I relate...

So that would be v=2pir/t. But what units is that answer in. I need rev/s

A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 150 m, at what frequency must it rotate so that it simulates Earth's gravity? [Hint: The apparent weight of the astronauts must be the same as their weight on Earth.] Once again I...

Sorry. Find the distance x beyond point D at which the bobsled will come to a halt.

A bobsled run leads down a hill as sketched in the figure above. Between points A and D, friction is negligible. Between points D and E at the end of the run, the coefficient of kinetic friction is µk = 0.4. The mass of the bobsled with drivers is 210 kg and it starts from rest at point A. I...

So I get the equation narrowed down to R^3=(T^2*G*M)/(2pi^2). But I can't seem to get it to work out to the correct answer? Did i mess something up?

A spy satellite is in circular orbit around Earth. It makes one revolution in 6.04 hours. (a) How high above Earth's surface is the satellite? (b) What is the satellite's acceleration? I really have no idea what to do on this. All of the equations that I have, I cannot solve because I...