Recent content by Idoke

Thank You!

Homework Statement The Starship Enterprise, apparently escaping from the clutches of Cthulhu (the image was not altered, this is how it was given!) is flying to the moon at a velocity of 0.7c. How long will it take (in seconds) for it to get to the moon, as observed from the Earth's frame of...

First of all, thanks for your time, both of you. Now, I fixed the first equation, the inclined plane had no velocity before the collision. I might be really dense, but I don't understand how to eliminate v2 from my equation or how that helps me solve the system. If you could clarify, i'd be...

But I still need to find alpha! Do I not have the same predicament? I feel like I'm missing another equation, or there might be a more elegant solution than this mess. If I could find how much impulse (or change in momentum) the floor had on the ball and plane I think I could arrive at a...

Homework Statement A ball, with mass m_{1}=6 kg and speed v_{0} (unknown) hits an inclined plane (as shown) of mass m_{2}=42 kg at rest on a frictionless floor. there is no friction between the ball and the plane. the angle \beta is 10 degrees. Question: what is the value of \alpha?2. Diagram...

Thank you! Your method did work, although I still don't know exactly how, I understand that I will learn it soon so I guess I'll be OK. Both of you have been immensely helpful, Cheers.

Hey, Thanks for replying. What do you mean writing the path in vector form? For the first question I get: A) along the X axis: Fd=9y (the force in the X direction) and y=0 so W=0. B) along the Y axis: Fd=7x. and of course the change in the x direction is again 0 (because i am moving on...

Homework Statement A particle in a path limited to the XY plane is acted upon by a force described in the following function: {\bf F}(x,y)=9y \hat{\bf x}+7x \hat{\bf y} (*The numerical coefficients are in kg/s^2 ) What is the work that the force does along these paths, between the...

Thanks a lot! that did the trick! I was getting so confused with pressures and other things. You rock!

Hello all, Should be a simple question (just started Physics 1 not long ago). Here it is: The thin, fluid filled glass tube is sitting on an accelerating cart. As a result the level of the fluid rises as shown in the picture (attached) by D = 0.6 m. The distance L is given. L = 0.2 m...