3 years ago

According to the periodic table, which of the following elements has five energy levels

Physics

1 answer:

Alex Ar [27]3 years ago

7 0

Antimony I am pretty sure is one.

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The inductor in a radio receiver carries a current of amplitude 200 mA when a voltage of amplitude 2.4 V is across it at a frequ

zzz [600]

Answer:

The value of the inductance is 1.364 mH.

Explanation:

Given;

amplitude current, I₀ = 200 mA = 0.2 A

amplitude voltage, V₀ = 2.4 V

frequency of the wave, f = 1400 Hz

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$X_l = \frac{V_o}{I_o} \\\\X_l = \frac{2.4}{0.2} \\\\X_l =12 \ ohms$

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$X_l = \omega L\\\\X_l = 2\pi fL\\\\L = \frac{X_l}{2 \pi f}$

where;

L is the inductance

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3 years ago

A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff? How long would it take sound to travel

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A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff?

t = sqrt(2y/g)
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How long would it take light to travel this distance?
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