Bob's average speed was 80 m/s.
His average velocity was 40 m/s East.
The magnitude of his velocity was almost 4 times as fast as Usain Bolt's world record in the 100 meters, or about 89 mph. His speed was double that.
The formula is M=Fd
so we have F=84N and d=0.25m
Now we just replace F and d into the formula M=84N×0.25m
And the last thing we do is calculate it
M=21Nm
Do you mean what will happen if you drop an egg? If so from what height. Also onto what surface would it be landing on.
Answer:
<em>60 V</em>
<em>The direction will be anticlockwise from the right side of the magnet.</em>
Explanation:
The change in magnetic flux = ∆Φ = 0.3 T.m^2
The change in time = ∆t = 0.2 s
number of turns = 40 turns
The induced emf E = N∆Φ/∆t =
E = (40 x 0.3)/0.2 = <em>60 V</em>
If the magnet is moved away from the coil, the induced current on the coil will try to oppose the motion of the magnet by attracting the magnet towards the coil. For the magnet to be attracted towards the coil, it must possess the equivalent of a magnetic south pole. For the equivalent of a magnetic south pole, the current on the coil will flow in the clockwise direction when viewed from the left side of the magnet. <em>When viewed from the right side of the magnet, the direction will appear as anticlockwise.</em>
Permanent... static means staying the same. (It remains this meaning in English, science, an math)