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3 years ago

6

What does a negative moment of inertia mean?

1 answer:

nydimaria [60]3 years ago

8 0

When we are talking about simple Ixx or Iyyvalues, then yes these will always be positive. However, when talking about moment products like Ixy, these will not necessarily be positive, mainly when holes have been cut in these cross sections.

When the holes are cut in, those moments then become negative, and due to the parallel axis theorem sometimes these negative values actually become larger than the initial value, and the moment then becomes negative.

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What is average speed?what is the formula for average speed?what does it mean?

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3 years ago

A long, straight, horizontal wire carries a left-to-right current of 40 A. If the wire is placed in a uniform magnetic field of

Drupady [299]

Answer:

$4.5\times 10^{-5} T$

Explanation:

We are given that

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Substitute the values in the given formula

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Substitute the values then we get

$B=\sqrt{(3.5\times 10^{-5})^2+(2.76\times 10^{-5})^2}$

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The resultant magnitude of magnetic field is same above and below the wire as it is at same distance.

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3 years ago

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Answer:

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