I was doing some homework problems, and I came across a couple I didn't know. I then realized I must have screwed up my understanding on electrical forces.
For an electrical force, if there are two protons, the force is k*q1*q2/r^2. The direction is in the opposite direction.
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Three objects with masses m1 = 66.0 kg, m2 = 37.4 kg, and m3 = 21.8 kg are hanging from ropes that run over pulleys. What is the acceleration of m1? (Take the upward direction to be positive.)
So for the two outside blocks,
I know that the forces acting on the blocks are T1=m2g+m2a, and...
I have a problem with physics when it comes to relating new ideas with new formulas. Like right now I'm learning about Solids and Fluids, and the problem i have now is remember what formulas to use when, what each of the parts of the formula mean, etc. Is there a site or a list of questions that...
I forgot to mention that. You are right, the bullet does get embedded into the rod. But I'm still not getting the intuition of why L/4 is being multiplied. Is there any connection between linear and angular momentum?
I got a homework problem the other day, and it was a conservation of angular momentum problem. Basically a bullet hits a rod, and a rod starts to spin. I needed to find how fast the rod was rotating.
I didn't get the answer right, but I was looking up the answers, and it says that to convert...