Recent content by c4iscool

Homework Statement A 1.6-kg block slides down a plane (inclined at 25° with the horizontal) at a constant speed of 2.0 m/s. At what rate is the frictional force doing work on the block? Homework Equations The Attempt at a Solution I think that you have to find the potential...

I got it. I think it works out to be -1.4J

ummm...no. I'm about to google it tho, but please explain.

ok, I get that but how would I find the velocity to get the kinetic energy? ke = 1/2 M*V^2 or am I still not getting it?

Homework Statement A 20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The block is pulled 10 cm to the right from its equilibrium position and released from rest. When the block has moved 2.0 cm toward its equilibrium position, its kinetic energy...

I am having problems figuring this out. How should I go about this? A child starts at one corner of a cubical jungle gym in a playground and climbs up to the diagonally opposite corner. The original corner is the coordinate origin, and the x-, y- and z-axes are oriented along the jungle gym...

A series of waves traveling at 200m/sec are being generated by a 50hz source. A point at the very top of the crest of a certain wave is ? meters away from a corresponding point 4 crests away. The only equation I have is V=lambda*F. Is there a way to get the distance w/ this or am I missing...

thanks for your help

now that I have the constant, it should look like this: f=k*x 48=133.3*x and I solve for x?

o, i c. i was using .5m as x.

k = F/L. that would make k=8?

It's a homework question and the answers are adiabatic, isovolumetric, isothermal or none. as for your other question about the other 200 calories, I have no clue. but I would think that the volume would stay the same. is that wrong?

how would I set this up: a spring that is .5m in length elongates by .03m when a 4 Newton force is exerted to stretch the spring. what is the total length of the spring(in m) when a net 48 Newton force is used to stretch the spring?

if that's the case then maybe it's isovolumetric b/c adiabatic can't have heat flow into or out of the system. any other ideas?

Here's my problem: 300 calories of heat are added to a gas as the internal energy of the gas increases by 500 calories. The described thermodynamic process is best described as? My guess is that the process is isothermal b/c work is being done in the system.