Homework Statement
The problem is to find the equivalent resistance between a to b.
Homework Equations
Req in series = R1 + R2 + ... Rn
Req in parallel = inverse of sum of 1/R1 + 1/R2 + ... 1/Rn
Kirchhoff's Rules
The Attempt at a Solution
Well, I tried redrawing the circuit to figure...
[SOLVED] help with homework problem
Homework Statement
A uniform disk of radius 4.4 m and mass 9 kg is suspended from a pivot 1.364 m above its center of mass. The acceleration of gravity is 9.8 m/s^2. Find the angular frequency w for small oscillations.
The Attempt at a Solution
I'm just...
Homework Statement
A horizontal 813 N merry-go-round of radius 1.28 m is started from rest by a constant horizontal force of 66 N applied tangentially to the merry-go-round. The acceleration of gravity is 9.8 m/s^2. Assume it is a solid cylinder. Find the kinetic energy of the merry-go-round...
BTW, the child touches the circular arc at the top of the circle which covers about a quarter of the circumference...well, picture the child sliding straight down then suddenly touches the top of the circle, which slides down in an arc. Sorry, i don't have the pic.
Just need some direction on the problem.
Homework Statement
A poorly designed playground slide begins with a straight section and ends with a circular arc. A child starts at point P and slides down both sections of the slide. At some point on the circular arc, the normal force goes to zero...
well, this is what i got...please comment if everything looks right..
w=kf-ki+uf-ui , uf=0
where ki = 1/2mv^2, ui = mg(2 times the radius for height), work=(2pi)(radius)(Force)
so kf=ki+ui+work...
Hi. I really need some help with this problem. I'm a little lost and my head seems ready to explode. Any hints will be appreciated.
Homework Statement
A softball pitcher rotates a .265 kg ball around a vertical circular path of radius .568 m before releasing it. The pitcher exerts 24.7 N...