3 years ago

What is a blue moon

Physics

1 answer:

Irina18 [472]3 years ago

8 0

.
a phenomenon whereby the moon appears bluish owing to smoke or dust particles in the atmosphere

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A solenoid with 435 turns has a length of 7.50 cm and a cross-sectional area of 3.50 ✕ 10−9 m2. Find the solenoid's inductance a

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Answer:

Solenoid's inductance is 1.11 × 10^-8H

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3 years ago

From the center of the Earth to the moon, what should the orbital radius of such satellite be in order to stay over the same poi

yulyashka [42]

In order to have a period that matches the Earth's rotation, a satellite must be in a circular orbit, and 42,164 km from the center of the Earth.

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3 years ago

4. What is the electric field strength 1.4 nm from a charge of 4.7 cC?

pentagon [3]

The electric field strength is $2.16\cdot 10^{26} N/C$

Explanation:

The strength of the electric field produced by a single point charge is given by:

$E=k\frac{q}{r^2}$

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q is the magnitude of the charge

r is the distance from the charge at which the field strength is calculated

For the charge in the problem, we have:

$q=4.7 cC = 0.047 C$ is the charge

$r=1.4 nm = 1.4\cdot 10^{-9} m$

Therefore, the electric field strength is

$E=(8.99\cdot 10^9)\frac{0.047}{(1.4\cdot 10^{-9})^2}=2.16\cdot 10^{26} N/C$

Learn more about electric fields:

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My favorate activies is skateboareding, and I prerfer outdoor actives.

Explanation:

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user100 [1]

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repetitions of a certain exercise

Explanation:

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3 years ago

What is a blue moon​

What is a blue moon