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4 years ago

As the elephant falls from 10 m does it lose or gain KE? Explain.

Physics

2 answers:

ivolga24 [154]4 years ago

7 0

He loss KE hope this helps

aleksandr82 [10.1K]4 years ago

6 0

It gains it. As it was stationary before it fell, it had gravitational potential energy, which in terms means it had zero kinetic energy. As it started falling, that GPE was converted to kinetic energy which means an obvious gain in said energy.

Hope this helped!

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A solenoid of length 0.35 m and diameter 0.040 m carries a current of 5.0 A through its windings. If the magnetic field in the c

puteri [66]

Correct question:

A solenoid of length 0.35 m and diameter 0.040 m carries a current of 5.0 A through its windings. If the magnetic field in the center of the solenoid is 2.8 x 10⁻² T, what is the number of turns per meter for this solenoid?

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the number of turns per meter for the solenoid is 4.5 x 10³ turns/m.

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Given;

length of solenoid, L= 0.35 m

diameter of the solenoid, d = 0.04 m

current through the solenoid, I = 5.0 A

magnetic field in the center of the solenoid, 2.8 x 10⁻² T

The number of turns per meter for the solenoid is calculated as follows;

$B =\mu_o I(\frac{N}{L} )\\\\B = \mu_o I(n)\\\\n = \frac{B}{\mu_o I} \\\\n = \frac{2.8 \times 10^{-2}}{4 \pi \times 10^{-7} \times 5.0} \\\\n = 4.5 \times 10^3 \ turns/m$

Therefore, the number of turns per meter for the solenoid is 4.5 x 10³ turns/m.

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3 years ago