A ball on the end of a string is rotating with constant speed in a horizontal plane. When the ball is moving North it is located
1 answer:
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Answer:
(1) 10^−2 m
Explanation:
The diameter of the tire of an automobile is generally expressed in centimetres; we can say that the diameter of a tire is generally about
d = 20 cm (20 centimetres)
Now we have to verify which option is closest to this value. To do that, we have to keep in mind the equivalence between metres and centimetres; in fact, we have:
This means that we can rewrite the diameter of the tire of a car as
By comparing it with the given options, we see that the closest option is
(1) 10^−2 m
which is therefore the correct answer.
Answer:
Distance of closest approach,
Explanation:
It is given that,
Charge on proton,
Charge on alpha particle,
Mass of proton,
Mass of alpha particle,
The distance of closest approach for two charged particle is given by :
So, their distance of closest approach, as measured between their centers . Hence, this is the required solution.