A 500 watt vacuum cleaner is plugged into a 120 volt outlet and used for 30 minuets. How much current runs through the vacuum?
In this case 4.2 amps of current are running through the vacuum.
p=vi
Answer:
1) 4 x 25m = 100m
2) 0 because after 4 lengths, he's back at the starting block.
3) speed is distance over time so speed here is 100m/125s = 0.8m/s
4) ...
5) 100m / 1.25m/s = 80s
6.a) 100m / 0.5m/s = 200s
7.b) ... can't draw this now..
Answer:
Explanation:
initial frequency of revolution is given as
now initial angular speed is
Similarly final angular speed is given as
Now angular acceleration is given as
Acceleration is any change in speed or direction of motion.
Speeding up, slowing down, or moving along a curve are all accelerations.
<span>The condition alone that is necessary so that the final kinetic energy of the system is zero after the collision is that the
objects must have momenta with the same magnitude but opposite directions.</span>