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vladimir1956 [14]
3 years ago
10

Please answer the questions... I will surely mark you as the brainliest according to me :)

Physics
1 answer:
frutty [35]3 years ago
6 0

Answer:

(a) You can tell that have the same strength because they have attracted the same amount of paper clips.

(b) Iron is used in electromagnets because steel retained magnetic properties after the power was turned off, but in the iron, the paper clips dropped off right away.

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A motorbike accelerates from 15m/s to 25m/s in 15 seconds.
RSB [31]

distance traveled by a uniformly accelerated bike is given as

d = \frac{v_f + v_i}{2} (t)

here we know that

v_f = 25 m/s

v_i = 15 m/s

t = 15 s

now we will have from above equation

d = \frac{15 + 25}{2} (15)

d = 20 (15) = 300 m

so it will cover the total distance of 300 m

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3 years ago
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What happens to a sheet of copper as kinetic energy of copper molecules decrease
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