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antiseptic1488 [7]
3 years ago
11

PLEASE HELP ME , it’s my exam

Physics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

I only know how to answer 22

which is 250 J

Explanation:

KE: 1/2 mv^2

m- 5kg

v- 10 m/s

KE: 1/2 × 5 × 10^2

= 250 J

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1. The current in a wire is 0.72A. Calculate the charge that passes through the wire in; a. 4 s b. 60 s c. 180 s d. 7 s e. 0.5 s
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Let current be I, charge be Q and time be t.
Here we are provided with,
I = 0.72A
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Case I
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When, t = 4s
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Case II
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Case III
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Case IV
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Case V
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When, t = 0.5s
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