Hello all,
I am doing homework and have come upon this question:
A cylindrical hole is drilled all the way through the center of a sphere (as shown in the figure below). Show that the volume of the remaining solid depends only on the length L of the hole, not on the size of the sphere.
Figure...
Homework Statement
Suppose two spherical balls roll down a hill without slipping. If both are released from rest, which one will roll the fastest?
The answer is that both will roll at the same speed, even if they are of different sizes and weights, but I do not understand why
Homework...
Homework Statement
There are two problems, but I think that they are similar:
A toy gun shoots a projectile straight up. The maximum height reached by the projectile is H when the spring is compressed x cm. For the projectile to reach a height of 2H, the spring of the gun should be compressed...
I have transcribed it exactly (but it should read 60 degrees instead of 60o). The problem has something to do with Work and Energy, but I'm not sure how to apply those ideas to the problem.
Homework Statement
A stone is thrown straight up from the roof of a building with initial speed v0. At the same instant, a second stone is thrown from the roof upward at an angle of 60o with the horizontal and with the same initial speed v0. Which is correct?
both stones hit the ground at the...
I have 3 questions. I think the answers are correct, but I'm having trouble providing explanations.
Homework Statement
Three particles have identical masses. Each particle experiences only the gravitational forces due to the other two particles. How should the particles be arranged so each...