Homework Help: Physics

Posted by Anonymous on Wednesday, May 9, 2012 at 9:04pm.

1. Will the swinging wonder ever let 2 ball bearings go in and one ball bearing out with twice the v? Why?
2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s. How much energy is lost as heat during the collision?

Physics - Elena, Thursday, May 10, 2012 at 11:42am
2.
m1•v1 – m2•v2 = (m1+m2) •u
u = {m1•v1 – m2•v2}/(m1+m2)=
=10•4 - 4•4 /10+4 =1.71 m/s.
m1•v1²/2 + m2•v2²/2-(m1+m2)u²/2 =91.43 J.

Answer this Question

Related Questions

Physics - 1. Will the swinging wonder ever let 2 ball bearings go in and one ...
physics - Standing on top of the science building, which is 48 m high, a group ...
algebra 2 - A company wants to make ball bearings that have a standard diameter...
physics - A ball bearing is dropped from rest at a point A. At the instant it ...
Physics - The muzzle velocity of a ball bearing was calculated through an ...
math - The diameters of ball bearings produced in a manufacturing process can be...
Physics - A spring with a spring constant of 223.9 N/m is compressed by 0.220 m...
maths - one bag contains 1 red ball,1 yellow ball, 1green ball and 1 blue ball ...
physics - A small glass bead has been charged to +19 nC. A metal ball bearing 1....
physics please help - A 5.00 kg ball (ball 1), moving to the right at a velocity...

For Further Reading

First Name:
School Subject:
Answer: