Glass does not transmit ultraviolet radiation. Suggest what happens to ultraviolet radiation when it is incident on glass. (1 ma
1 answer:
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Answer:
B. A repulsive force of 8.0*10^3 N.
Explanation:
As we know by Coulomb's law that the electrostatic force between two charges is given as
here we know that
r = 3.0 m
now we have
since both charges are similar charges so they will repel each other by the force we calculated above so correct answer will be
B. A repulsive force of 8.0*10^3 N.
Answer:
At (approximately
.)
Explanation:
Note that the acceleration of the car between and
(
) is constant. Initial velocity of the car was
, whereas
at
. Hence, at
, this car would have travelled a distance of:
.
At , the truck would have travelled a distance of
.
In other words, at , the truck was
ahead of the car. The velocity of the car is greater than that of the truck by
. It would take another
before the car catches up with the truck.
Hence, the car would catch up with the truck at .