The answer is C since the higher up you go the colder it gets which is why Linda will experience colder climates.
Answer:
The mass of the cable is 4.94 kg
Explanation:
It is given that,
Mass of the block, m = 20 kg
Force applied to the cable, F = 110 N
Speed of the block, v = 4.2 m/s
Distance, d = 2 m
Let a is the acceleration of the block. It can be calculated using the third equation of motion as :



Let m' is the mass of the cable. It can be calculated using the second law of motion as :


m = 4.94 kg
So, the mass of the cable is 4.94 kg. Hence, this is the required solution.
light speed in vacuum = 3.8 * 10^8
Distance (Given) = 3.5 ft
now, time = distance/speed = 3.50 / 3.8 * 10^8 = 9.21 * 10^-9 s = 9.21 nanoseconds
So, your answer is 9.21 nano-seconds...