Answer:
There isn't enough information to solve. Is this related to a graph? The initial and final velocities are needed. The expression for solving is noted under Explanation.
Explanation:
Given final velocity, initial velocity and displacement, one can solve for the acceleration using:
a=v2−u22s,
where v is final velocity (m/sec), u is initial velocity (m/sec) and s it the distance travelled (in m).
Magnitude: Magnitude generally refers to the quantity or distance.
Attraction: A force that makes things move together and stay together.
Repulsive: The feeling of being repelled, as by the thought or presence of something; distaste, repugnance, or aversion.
Current: Current is the rate of flow of electric charge. A potential difference (voltage) across an electrical component is needed to make a current flow through it.
I hope that helps :]
Answer: R = 28 degree
Explanation:
The given parameters are:
Refractive index n = 1.52
Incident angle I = 45 degree
According to Snell law,
Sin I/Sin R = n
Where
I = angle of incidence
R = angle of refraction
n = refractive index
Substitute all the parameters into the formula
1.52 = sin 45/ sin R
Make sinR the subject of formula
Sin R = sin 45/1.52
Sin R = 0.46520
R = sin^-1(0.46520)
R = 27.72 degree
Therefore, the angle of refraction will be 28 degrees approximately.
The resistance of a wire is:
R = ρL/A, where ρ is the resistivity of the material, L is the length of the wire and A is the cross sectional area. If the length is doubled, the resistance of the wire will double.