Hello! I do not understand this question very well but this is the best answer i got...I am very sorry if you do not like this you may report me if you like.
Inertia: One reason why its hard to get up in the morning for school.
Answer:
a) F=0N
b) F=2N pointing to the ground.
c) F=2N pointing to the ground.
Explanation:
a) The apple is at rest at your hand. This is because the force of gravity is pulling the apple down with a force of 2N, but your hand is aplying to the apple an equal but opposite force of 2N that is the normal force, which points up. If we sum these forces: F=2N-2N=0N in the vertical axis. This null force has no preferred direction.
b) The only force acting over the apple is the force of gravity, which has a value of F=2N for this apple and always points to the ground.
c) Even if the apple is moving upwards, the only force acting on it is the force of gravity, which has a strength of F=2N for the apple and points always to the ground.
3500/ 100 = 35
the answer is 35m!
Answer:
0
Explanation:
The speed of the ball when it reaches the floor is 0 because when an object is at rest or in uniform motion, it has no speed/velocity
Answer:
i) Jn = q Dn
ii) Diffusion current and drift current will be doubled
Explanation:
<u>i) Determine the directions of the electron drift and diffusion current flow </u>
the electron concentration is higher on the right side of the N-type semiconductor hence any change in the concentration of electrons will cause <em>diffusion of electrons from right to left and electron drift is from left to right </em>and this is because the electrons in the semiconductor bar are attracted to the electric field.
Jn = q Dn ( electron diffusion current )
<u>ii) Determine what happens to the diffusion current and drift current If we double the electron concentration everywhere </u>
The electron diffusion current ( J'n ) = 2q Dn = 2Jn ( i.e. diffusion current doubles )
Drift current = ( Jdrift = nq*μn*ε)
when the electron concentration is double
Drift current = 2 ( nq*μn*ε )
hence the drift current will double