Two analogies:
1. The wires are like hoses full of water. As soon as you turn on the water, water is pushed out the end of the hose.
2. Although the electrons only move at 1mm/s, the electomagnetic pulse travels through the circuit at near speed of light (varies btw .1c to .9c). It is this pulse that provides the pressure to push the electrons out the end of the wire into the light
Answer:
the acceleration of an object is directly pro to the net force acting on it and indirectingly proportional to its mass
Answer:
B is the best answer.
Explanation:
A is off-topic considering the pea plant experiments, C is close, but too general and can be proven wrong, and D is just flat out wrong. The process of elimination leaves B to be the best answer.
Explanation:
Let 
is the two forces acting on the raft. If they pull in the same direction, the net force is given by :
...............(1)
If they pull in opposite direction, net force is given by :
...............(2)
It is required to find the magnitude of both forces. On solving equation (1) and (2) we get :
So, the forces are 207.5 N and 92.5 N. Hence, this is the required solution.
