distance traveled by a uniformly accelerated bike is given as

here we know that



now we will have from above equation


so it will cover the total distance of 300 m
Explanation:
Efficiency is the ratio of energy out to energy in.
e = Eout / Ein
0.52 = 800 J / Ein
Ein ≈ 1538 J
Round as needed.
Answer:
Sink
Explanation:
The normal density of water is 1 g/cm3. Since the rock has a higher density of 1.72g/cm3, it will sink in water.
It's B-<span>Electromagnetic forces are stronger than gravitational forces</span>
Answer:
Sphere B has 4 times more inertia than sphere A.
Explanation:
Inertia on a Solid sphere is given by:

For this problem:
ma = mb = M
Rb = 2*Ra
With these values:


As you can see, Ib = 4 * Ia.