Recent content by Mthees08

I am not entirely sure of the constraint part, but angular momentum is always conserved the same as linear momentum. So my hint to you is to find the angular momentum of the particle initial and final and the difference is what the large ball should have, however THEN apply the constraints as...

That is correct about 27 degrees north of east. at a velocity about 13.5 m/s (13 with 2 sig figs)

Go back and write it out with the sums, limits, and ns in their proper places and I think you will see your error.

Hint: Use energy

Not what I got, and it isn't simply off by an order of 10^n it just seems wrong. Check your computations, make sure you used the correct formula for Ke of a spring. and one more hint, work the problem backwards. Find the Energy at the end and work back until the point of the initial block's...

Your answer, to the best of my knowledge is correct. You properly found the normal and friction is based on the normal. So you are correct

1b) is simply if it is an elastic collision, meaning Vf1=-Vf2. Entirely possible, 2 is just a stupid question. There is no east in space... a) your answer looks correct... b) P=mv use conservation of momentum and the impulse you found to find its new momentum. I=Pfinal - Pinitial c) you seem...

1) Newtons third law is a good start, but think about the expansion of the exploding gas also. 2)Energy, Momentum both should be mentioned. Is it elastic? or Inelastic? 3)Fdt=impulse so if you can use calculus integral of ma from time t initial to t final =impulse, both receive the same force...

Hint: Momentum is always conservedsecret hint: Energy is not conserved, until after the bullet is embedded in the block.

Don't worry about being confused, it can get that way especially when you start adding ns and random variables in. If you look that is the equation I gave you, with 2 ns in it, which if I remember correctly correspond to the number of nodes maybe? I am not sure, however I believe they are there...

We had a problem exactly like this in AP Physics my Sr. year. If I remember correctly your best bet is to find the womans condition after 2 seconds. Now use some algebra, and a constant acceleration equation (one with all variables x, v, a,) and set them equal, by either t or X it is your...

Is it hanging by the spring vertically? and if so I assume the .1m is the displacement from equilibrium position. In which case your answer is seeming correct. the normal determines friction which is W-T (treating spring as a tension force naturally) So your answer should be correct, assuming I...

well if you draw it you see you have 1 node 1 antinode which means the length of the pipe is 1/4 the wavelength the speed of sound at 20C is 344 m/s freq=v/wavelength. Thats really all I can say without telling you the answer lol

F(centripetal)=V^2/R because you are moving in a circle there is a centripetal force, always. At the bottom it is opposite of weight and the normal you feel is w-Fc at the top it is creating a normal if I remember correctly. so It is Fc+W=N

Start off drawing a picture! nodes and anti-nodes this will show you the ratio of length of the pipe to the wave length! If you need more help just say so I am going to use this as an exercise to review harmonics so i will find the answer.