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zalisa [80]
2 years ago
8

Which of the following statements about iron filings placed upon glass resting on top of a bar magnet is false?

Physics
2 answers:
Umnica [9.8K]2 years ago
7 0

Answer: C.The filings will be clustered more densely where the field is weakest.

Lol this is pretty easy haha im on the same question... Because this is obviously false, where the magnetic field is weakest it wont have clusters of fillings. The fillings would be more scattered around. No duh

leva [86]2 years ago
5 0

The answer would be D. Because the iron fillings are attracted to the magnet underneath the glass.

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Answer:

F = 4000 N

Explanation:

given,

mass of rocket (M)= 5000 Kg

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time = 10 s

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at the end the rocket is at rest

by conservation of momentum

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speed of rocket = 8 m/s

now,

we know

change in momentum = F x Δ t

F = \dfrac{m(v_i-v_f)}{\Delta t}

F = \dfrac{5000(8-0)}{10}

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Hence, the average force applied to the rocket is equal to F = 4000 N

4 0
3 years ago
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Arte-miy333 [17]

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2 years ago
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Answer:

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3 years ago
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densk [106]

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