Recent content by Gashouse

Explain how it is possible for 30,000 kg of snow at 0 deg C to contain more heat energy than 1 mL of liquid water a 100 deg C. ( Assume a pressure of one atomsphere).

A 0.40 kg ball is thrown vertically upward with a speed of 30 m/s. The ball reaches a height of 40 m. Assuming g= 9.8 m/s^2, the energy dissipated due to air friction is : F=mgh m=0.40kg, g=10 m/s^2, h=40m, a= 30 m/s Not sure if I set this problem up right, and since everything is...

It is not pre-cal, the spring is compressed that obeys Hooke's law. Thanks for the quick responses. Goku I understand what you are saying. But Halls so Ivy I did not understand how you got 200x*2= 18

A compressed spring that obeys Hooke's law has a potential energy of 18 J . If the spring constant of the spring is 400 N/m, find the distance by which the sping is compressed. Please correct me if I am wrong, I'm not sure how find the distace. My work: k 400 N/m x=18J = 400 N/m/18...

f=UN = 6(0.4) not sure how to begin with this problem and how to find the coefficient

A wooden block slides directly down an inclined plane, at a constant velocity of 6 m/s. How large is the coefficient of kinetic friction, if the plane makes an angle of 25 degrees with the horizontal?

HallsofIvy Thanks again for the instruction, that made more sense to me. Thanks in advance.

Thanks PN Hey PHYSICS NOOB, I really appreciate the help. I worked the problem before coming on the forum and did'nt think that I was doing it correct. Thanks in advance again and for the fast response.

If a force accelerates 4.5 kg at 40 m/s ^2, that same force would accelerate 18 kg how much?

A load of steel of mass 6000kg rests on the flatbed of a truck. It is held in place by metal brackets that can exert a maximum horizontal force of 8000 N. When the truck is traveling 20 m/s, what is the minimum stopping distance if the load is not to slide forward into the cab?