Answer:
D
Explanation:
descriptive, because scientists are writing down the observations but not making comparisons.
Acceleration = (final velocity - initial velocity) / time
= (35-65)/10
= -3 m/s2
Well, it happens a few weeks ahead, then for a total of 3 hours and 40 minutes.
Answer:
The magnitude of the average induced emf is 90V
Explanation:
Given;
area of the square coil, A = 0.4 m²
number of turns, N = 15 turns
magnitude of the magnetic field, B = 0.75 T
time of change of magnetic field, t = 0.05 s
The magnitude of the average induced emf is given by;
E = -NAB/t
E = -(15 x 0.4 x 0.75) / 0.05
E = -90 V
|E| = 90 V
Therefore, the magnitude of the average induced emf is 90V
