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vova2212 [387]
3 years ago
7

A wheel has an initial clockwise angular velocity of 10 rad/sec and a constant angular acceleration of 3 rad/sec2. What time is

required to acquire a clockwise angular velocity of 15 rad/sec? a)- 1.67 sec b)- 8.2 sec c)- 12 sec d)- 3 sec
Engineering
1 answer:
tino4ka555 [31]3 years ago
7 0
0 duuuuuuuuuuuuuuuuuuuuh
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A metal wire of resistance R is cut into seven equal pieces that are then placed together side by side to form a new cable with
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Answer:

Explanation:

So therefore new Resistance R¹ = R/49

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R = ¶ * L/A

Where ¶ = resistivity of wire

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So therefore if the wire is cut into 7 equal lengths and joined together to form one with new Resistance R¹

So new length L¹ = 1L/7

New A¹ = 7A

So therefore R¹ = ¶ (L/7) /(7A)

So R¹ = ¶*L/A(49)

Since R = ¶L/A

So therefore R¹ = R/49

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Please help meh!!! I appreciate it!
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Answer:

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