Answer:
0.6
Explanation:
The volume of a sphere =
Therefore
r of the disc =
Using conservation of angular momentum;
The of the sphere =
of the disc =
= 0.6
A police officer uses a radar gun to determine the speed of a car. A specialized radar gun uses ultraviolet light to determine t
2 answers:
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Answer:
Energy conversion in flashlight.
Explanation:
When the switch of a flashlight is on, then the batteries inside them will be connected in a circuit and chemical energy from the batteries will be converted into electrical energy and then the electrical energy will be converted into light energy.
Light energy is also called electromagnetic energy.
Hence, among the given options the correct one is the first option that is:
1. Electrical energy into electromagnetic energy is the answer.
Answer:
Explanation:
Momentum is equal to mass times velocity in kg and m/s, respectively. Therefore,
p = 100(15) so
p = 1500