Most comets have short periods and orbit close to the ecliptic plane. (T/F)
1 answer:
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Answer:
a) 0.21N/C
b) counterclockwise
Explanation:
a) to find the magnitude of the electric field you can use the following formula:
A: area of the ring = pi*r^2
E: electric field
Ф_B: magnetic flux
In the line integral you can assume E as constant. Furthermore, you calculate the change in the magnetic flux by taking into account that the time interval is 1.12/0.21=5.33s. By replacing in the formula you obtain:
the magnitude if the induced electric field is 0.21N/C
b) By the Lenz's law you can conclude that the current has a direction in a counterclockwise
Answer: B) 0 mph
Explanation:
Velocity is a vector quantity. It can be measured as rate of change of displacement.
Displacement is the straight path length between final and initial position of the body in motion.
It is given that the car goes from point A to point B and the returns to Point A. Hence, the net displacement of the car is 0 as the car comes back to its initial position.
Therefore, the velocity of the car is 0 mph.
Option B is correct.