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Alborosie
3 years ago
5

The electromagnetic spectrum consists of various ranges of electromagnetic waves. Between which of the following does the visibl

e portion of the electromagnetic spectrum fall?
A. between the radio and microwave ranges
B. between the microwave and infrared ranges
C. between the x-ray and gamma ray ranges
D. between the infrared and ultraviolet ranges
Physics
1 answer:
lisabon 2012 [21]3 years ago
7 0
The answer is D, it falls between the infrared and ultraviolet.
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Impedance is basically the overall resistance/impeding factor against a current in an electrical circuit. Inductive and capacitive reactances are used in a formula to DETERMINE impedance (it uses resistance too) and they are basically the opposition towards a current caused by the inductor (ex. coil) and a capacitor, respectively, in an LC or RLC circuit.
6 0
3 years ago
What is the approximate percentage of geologic time that humans have existed on earth since its origin?
Alekssandra [29.7K]

Answer:about 200,000 years ago that humans existed on earth.

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3 years ago
6.P.2.1 Matter: Properties and Changes Notes
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Answer:

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8 0
3 years ago
Two lightbulbs work on a 120-V circuit One 50 W and the other is 100 W. Which bulb has a higher resistance? Explain pls!!!!
Sladkaya [172]

Answer:

Bulb 1 has more resistance.

Explanation:

Given that,

Two lightbulbs work on a 120-V circuit.

The power of circuit 1, P₁ = 50 W

The power of circuit 2, P₂ = 100 W

We need to find the bulb that has a higher resistance.

The power of the bulb is given by :

P = \dfrac{V^2}{R}

For bulb 1,

R_1=\dfrac{V^2}{P_1}\\\\R_1=\dfrac{(120)^2}{50}\\\\R_1=288\ \Omega

For bulb 2,

R_2=\dfrac{V^2}{P_2}\\\\R_2=\dfrac{(120)^2}{100}\\\\R_2=144\ \Omega

So, bulb 1 has higher resistance.

8 0
2 years ago
A wave with a wavelength of 0.1 m moves with a speed of 0.5 m/s. What is the frequency of the wave?
kondaur [170]
Frequency= speed/ wavelength
=0.5m/s divided 0.1.m
=5.0 Hz

The answer would be letter D.
3 0
3 years ago
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