Answer:
t = 0.04159 s
Explanation:
when a capacitor and resister are connected in series. charge on its plates decreases exponentially

where,
CHARGE q =15.0 C
INITIAL CHARGE q_0 = 30.0 uc
Resistor R = 20.0 F
capacitor C = 3.00

t = 0.04159 s
The flux will be 4 times stronger ( due to the inverse square law )
Answer:
a) Acceleration of runner is 1.33 m/s²
b) Acceleration of motorcycle is 2.85 m/s²
c) The motorcycle moves 84.21-2.94 = 81.06 m farther than the runner.
Explanation:
t = Time taken
u = Initial velocity = 0
v = Final velocity
s = Displacement
a = Acceleration
Equation of motion

Acceleration of runner is 1.33 m/s²

Acceleration of motorcycle is 2.85 m/s²

The runner moves 2.94 m

The motorcycle moves 84.21 m
The motorcycle moves 84.21-2.94 = 81.06 m farther than the runner.