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vichka [17]
3 years ago
14

Which statement demonstrates that ultraviolet (UV) rays are electromagnetic waves?

Physics
2 answers:
MA_775_DIABLO [31]3 years ago
5 0
The answer is B) They do NOT require a medium to travel.
aalyn [17]3 years ago
4 0
B. They don't require a medium to travel
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A parallel RLC circuit contains an inductor with a value of 400 microhenries and a capacitor with a value of 0.3 microfarads wha
ipn [44]

Answer:

The resonant frequency of this circuit is 14.5 kHz.

Explanation:

Given that,

Inductance of a parallel LCR circuit, L=400\ \mu H=400\times 10^{-6}\ H

Capacitance of parallel LCR circuit, C=0.3\ \mu F=0.3\times 10^{-6}\ F

At resonance the inductive reactance becomes equal to the capacitive reactance. The resonant frequency is given by :

f=\dfrac{1}{2\pi \sqrt{LC} }

f=\dfrac{1}{2\pi \sqrt{400\times 10^{-6}\times 0.3\times 10^{-6}} }

f=14528.79\ Hz

or

f = 14.5 kHz

So, the resonant frequency of this circuit is 14.5 kHz. Hence, this is the required solution.

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3 years ago
A stone is thrown vertically upwards with an initial velocity 20m/s. Find the maximum height it reaches and the time taken by it
Colt1911 [192]

Answer:

20metere

  1. Y=VOYYT-1/2gt^2
  2. H=20m/s*2s-1/2*10m/s^2(2s)^
  3. H=40m-1/2*10 4s^2
  4. 40m-20
  5. H=20m
8 0
2 years ago
Which reading strategy helps you to read and understand a passage quickly by making use of your previous knowledge?
Molodets [167]
Taking notes,because you can read back on what you learned
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3 years ago
What do tripped circuit breakers and blown fuses indicate.
vladimir2022 [97]

Answer:

When a circuit breaker regularly trips or a fuse repeatedly blows, it is a sign that you are making excessive demands on the circuit and need to move some appliances and devices to other circuits. Or, it may indicate that your house has too few circuits and is in need of a service upgrade.

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An incident ray through the focal point of a spherical mirror will:
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Reflect parallel of the principal axis
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3 years ago
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