Electrons
although the conventional current is actually assumed to be a bunch of positive particles moving in the opposite direction
Answer:
hmm
Explanation:
By increasing the number of turns in the coil, strength of magnetic field, speed of rotation of the coil in the magnetic field and by decreasing the distance between the coil and the magnet the magnitude of the induced e.m.f. can be increased in generator/dynamo.
Answer:
When the mass is drawn upwards and let go, the force of gravity accelerates it,
Explanation:
if you send me the video i can give you a better answer its just hard without seeing it
Answer:
<em>The 150 lb woman at 30 mph would experience the greatest force of impact in a sudden collision.</em>
Explanation:
<u>Momentum
</u>
The force of impact exerted on an moving object that suddenly stops or changes its movement is measures by the physics magnitude called Impulse, which can be computed with the formula

Where F is the force and t is the time that force acts to produce the impact on the object. The impulse is also defined as the change in the momentum of the object:

Or equivalently

The question describes four situations where different persons and object suffer impact that make them stop from their moving state. Thus
and the impulse is

We are only interested in the relative magnitudes of each case, so we won't consider the sign in the calculations
Case 1: A 200 lb. man traveling 20 mph

Case 2: A 150 lb. woman at 30 mph

Case 3: A 35 lb. infant at 75 mph

Case 4: A 75 lb. child at 55 mph

By comparing the results, we can see that the 150 lb woman at 30 mph would experience the greatest force of impact in a sudden collision.