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Your question: An objects momentum is determined by the object's..?

Your answer: An objects momentum is determined by the object's mass and velocity.

Happy Studying! =)

7 0

4 years ago

HELP Where would you predict the highest atmospheric pressure?

LuckyWell [14K]

Answer:

Explanation:

The correct answer is B: in the northwest.

6 0

3 years ago

A long, hollow wire with inner radius a and outer radius b carries a uniform current density J. What is the magnetic field as a

sveta [45]

Answer:

The magnetic field in the region a < r < b is $B=\frac{u_{0}I(r^{2}-a^{2}) }{2\pi r(b^{2}-a^{2}) }$

Explanation:

If we have the a < r < b. The formula of current is:

$J=\frac{I_{total} }{A}$

Where:

A = area enclosed by the loop.

Itotal = total current in loop.

$J=\frac{I}{\pi b^{2}-\pi a^{2} }$

$I_{enclosed} =JA_{enclosed}$

$I_{enclosed} =\frac{I(\pi r^{2}- \pi a^{2})}{\pi b^{2}-\pi a^{2} }$

If we have the Ampere`s law:

$\int\limits^a_b {B} \, ds =u_{0} I_{enclosed} \\2B\pi r=u_{0} (\frac{I(\pi r^{2}-\pi ^{2} }{\pi ^{2}-\pi a^{2} } )\\B=\frac{u_{0}I(r^{2}-a^{2}) }{2\pi r(b^{2}-a^{2}) }$

6 0

3 years ago

Which of the following best describes magnetic fields? Question 4 options: Magnetic fields must have only positive charges. Magn

Kobotan [32]

<span> Magnetic fields have north and south magnetic poles.</span>

7 0

4 years ago

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