Recent content by PnotConserved

I'm having a similar trouble. I know that E= deltaV / distance but in my book there is a problem where the the point of question (0V) is a distance 1cm from the next equipotential line (200V). The delta V is 200V. BUT in this other problem there are ovular circles around 0V and the...

I tried the V' substitution before but was wrong. The expression that the book describes it to be: ---> the square root of [(m+M)kd^2] / m^2

Homework Statement A bullet of mass (m) is fired into a block of mass (M). The block with the embedded bullet slides across a frictionless table and collides with a horizontal spring whose constant is (k). The springs maximum compression (d) is measured. Find an expression for the bullets...

but now I just tried to use conservation of Energy and got a different answer. I tried 1/2 mv^2 + 1/2 mv^2 = 1/2mv^2 (final for system) I got both balls traveling at 5 m/s ??

Ball 1, with a mass of 100 g and traveling at 10 m/s, collides head-on with Ball 2, which has a mass of 300 g and is initially at rest. What are the final velocities of each ball if the collision is perfectly inelastic? We're suppose to be talking about Energy, but I figured I could use...

I did this same problem and got 1.43 m/s, but the books answer says .143 m/s. I was getting frustrated until I saw these posts. I guess the key is wrong.