HI,
So say you have a small ball hanging vertically below a positively charged plate. When the ball is released from rest with the string at a small angle to the vertical, it swings in periodic pendulum motion. If the ball is now positively charged, does the period increase, decrease or stay...
Hi, I'm having trouble rearranging this equation, solving for E(t):
E(t) = Eo*e^(-t/T)
My attempt:
ln E(t) = Eo * (-t/T) and now I'm stuck.
Any help would be appreciated!
Hello there, I am having difficulty with this question:
A 0.2 kg plastic cart (Cart a) and a 20 kg (Cart b) lead cart can both roll without friction on a horizontal surface. Equal forces are used to push the two carts forward for a distance of 1 m, starting from rest. Which cart has the...
Hello, just wondering if you could apply Fg=mg to this. So the gravitational forces on the equator versus on the North Pole would differ and therefore, you would weigh more on the North Pole. According to what I found, the the gravitational acceleration is 9.78 m/s2 at the equator and 9.83 m/s2...
Hello there, I am having trouble with this question:
A seal, mass of 82kg, jumps onto a horizontal ice float with a Vo of 6m/s i. The friction between the seal's belly and ice is 160N. g is 9.81m/s^2. How far does the seal slide?
So so far, if I'm correct, I calculated the acceleration...
Homework Statement
Rearrange d=vit + 1/2 at^2 for t.
The Attempt at a Solution
t = \frac{-v \pm \sqrt{v^2+4 \left( \frac{1}{2} a\right)d}}{2 \left( \frac{1}{2} a \right)}
1. The problem statement.
a = 1/(1+C) g sine pheta
Rearrange equation to solve for g.
My attempt of the solution is:
g = (a+c)/sine pheta
What confuses me is whether or not g sine pheta are all clumped together or if it's just g x sine pheta. Thanks!