Answer:
The first object is experiencing a larger centripetal force because its radius is smaller compared to the second object.
Explanation:
Given;
radius of the first object, r₁ = 10 cm = 0.1 m
radius of the second object, r₂ = 0.2 m
let the mass of the two objects, = m
let the speed of the two objects = v
The centripetal force of the first object is given by;

The centripetal force of the second object is given by;

Therefore, the first object is experiencing a larger centripetal force because its radius is smaller compared to the second object.
Answer:
0.73m/s2
Explanation:
The speed at which the passengers move is the final speed of the plane
Hence acceleration = V-U/t; change in velocity and t is time taken. U is the initial velocity which is 0m/s
a = 73-0/100= 0.73m/s2
Answer:
150 fils
Explanation:
Power = 125 Watt
Time 4 hours a day
Energy per day = Power x time per day = 125 x 4 = 500 watt hour
Energy for 30 days = 500 x 30 watt hour = 15000 watt hour = 15 KWH
Cost of 1 KWH = 10 fils
Cost of 15 KWH = 15 x 10 = 150 fils
Friction is the correct answer.