Explanation:
Total surface area of cylinder:

sheet of metal required = 120.95 cm^2
Answer:
44200 N
Explanation:
To calculate the average force exerted on the car, we will use the following equation

Where F is the average force, t is the time, m is the mass, vf is the final velocity and vi is the initial velocity of the car.
Replacing t = 0.5s, m = 1300 kg, vf = -2 m/s, and vi = 15 m/s and solving for F, we get

Therefore, the average force exerted on the car by the wall was 44200 N
Answer:
Mechanical waves- travel faster in solids & slowest in gases 2. Electromagnetic waves- travel fastest in empty space and slowest in solids.
Explanation:
Answer:
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Explanation: