Recent content by gongshow29

Homework Statement A 1.9 kg ball attached to a string whose length is 1.8 m moves counterclockwise (as viewed from above) in a horizontal circle (see figure below). The string makes an angle θ = 30° with the vertical. (a) Determine both the horizontal and vertical components of the angular...

Ok that makes sense, appreciate everyone's help.

Ok, I switched out 0.46g into 0.00046kg, did the same calculation ended up with .010227kg, and my answer wants it in grams, so I multiplied it by 1000, for 10.227g, and its still incorrect. I am really confused now.

so I would use the following setup mgh=1/2mv^2 correct? I calculated my velocity with that setup (0.46)(9.81)(0.54)=(1/2)(0.46)v^2 ended up with 3.254... plugged that into the formula suggested which was 2(n)(m)(v): 2(108)(0.46)(3.254)=323g, but that is giving me the incorrect answer...

Would I just use the conservation of energy to solve for the velocity then? Or momentum?

Homework Statement A stream of elastic glass beads, each with a mass of 0.46 g, comes out of a horizontal tube at a rate of 108 per second. The beads fall a distance of 0.54 m to a balance pan and bounce back to their original height. How much mass must be placed in the other pan of the...

Ok that ended up working, thank you very much for the help, I guess on the first try when I calcluated the velocity i plugged in the inital velocity of jane instead of the final velocity.

I used your method above and came out with something like this: (56kg)(9.8)(27m)=(56kg+91kg)(9.8)(h), solving for h I get 10.285 and it is still telling me that the answer is incorrect. This is the hint that it gives me, "Jane's collision with Tarzan is a perfectly inelastic collision...

Ok, so I tried to set it up as follows: (56)(9.8)(27)=(1/2)(56)v^2 so for the velocity I got 23.00434742. then i plugged this velocity into the follwing: (1/2)(56+91)v^2=mgh and solved for h, and I ended up getting 27 again which is incorrect, which part of my method is incorrect?

Homework Statement Tarzan is in the path of a pack of stampeding elephants when Jane swings into the rescue on a rope vine, hauling him off to safety. The length of the vine is 27 m, and Jane starts her swing with the rope horizontal. If Jane's mass is 56 kg, and Tarzan's mass is 91 kg, to...