Recent content by Elmnt

Yes thank you, that is the correct link. Its tough to agree with you in that religion shouldn't interfere with science. I don't like that it prevents development of technology but at the same time I can understand why a religion would stand up against technology that infringes on its beliefs...

http://singularityhub.com/2010/06/07/hans-keirstead-transforms-embryonic-stem-cells-into-retinas/ I came across this article earlier today and I posted it on my facebook status because I thought it was interesting. After about an hour, I had a few people commenting who seemed concerend that I...

Yes! Thank you very much!

Homework Statement Two blocks, of masses M = 2.1 kg and 2M are connected to a spring of spring constant k = 210 N/m that has one end fixed, as shown in the figure below. The horizontal surface and the pulley are frictionless, and the pulley has negligible mass. The blocks are released from...

Thank you for your help!

Homework Statement A 50 kg skier starts from rest at a height of H = 25 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. Neglect the effects of air resistance and assume the ramp is frictionless. What is the...

Wouldn't N sin theta [SIZE="5"]+ Friction cos theta = net force?

Homework Statement A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 202 m. Traffic is moving along the highway at 35 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate...

I was thinking along those lines, but it is wrong. I think it has something to do with the frictionless plane.

Homework Statement The two blocks (m = 18 kg and M = 101 kg) in the figure below are not attached to each other. The coefficient of static friction between the blocks is µs = 0.59, but the surface beneath the larger block is frictionless. What is the minimum magnitude of the horizontal force...

I wasn't paying attention to the force from the motorcycle the accelerates the rider up the ramp. With that now understood I can take the normal force that I had found and use it as a y component and then find the force that the bike applies to the rider going up the ramp and use that as the x...

I'm sorry I didn't post the first question asked. Which was: (a) What is the magnitude of the net force on the rider? Which I found to be 214.4 N. I am missing something, What am I supposed to calculate? Isn't normal force the only force from the motorcycle onto the rider? My only other...

Homework Statement A motorcycle and 67.0 kg rider accelerate at 3.2 m/s2 up a ramp inclined 10° above the horizontal. What is the magnitude of the force on the rider from the motorcycle? Homework Equations I set my 90 degree axis so that my x-axis lined up with the acceleration up the...