Answer:
Explanation:
Electromagnetic waves are different from ocean waves through their mode of propagation
Electromagnetic waves are Those waves that do not requires any material medium for their propagation. examples of electromagnetic waves are, Light wave, radiant heat, radio wave,
While
Ocean Waves are classified under mechanical waves, because they required a material medium for the to be to be propagated.
Answer:
13.41 horsepower
Explanation:
Power: This can be defined as the rate at which energy is used up by a body. The S.I unit of power is Watt (W).
The expression for power is given as,
P = Ek/t...................... Equation 1
Where P = power, Ek = Kinetic Energy of the car, t = time.
Recall that,
Ek = 1/2mΔv²............ Equation 2
Where m = mass of the car, Δv = change in velocity of the car.
Substitute equation 2 into equation 1
P = 1/2(mΔv²)/t...................... Equation 3
Given:m = 1000 kg, Δv = 30-20 = 10 m/s, t = 5 s
Substitute into equation 3
P = 1/2(1000×10²)/5
P = 10000 W.
If,
745.7 W = 1 hp,
Then,
10000 W = (10000/745.7) hp
= 13.41 hp.
P = 13.41 horsepower
3.19 x 10^8... hope this helps.
Answer:
The marble as lost energy due to gravity, air resistance (if there is air), and the centripetal force when going around that loop.
Explanation:
Also a little in heat but that rly doesnt matter