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kotykmax [81]
3 years ago
15

Choose the correct statement concerning electrical circuits. A) The electrons in a circuit move from the positive to the negativ

e battery terminal. B) In a circuit, when the resistance is increased the current increases. C) In a circuit, when the battery voltage is increased the current increases. D) In a circuit, when the battery voltage is increased the current decreases. E) Any standard alkaline battery (AAA, AA, C, D) has a voltage of 5 V.
Physics
1 answer:
zavuch27 [327]3 years ago
7 0

Answer: C

Explanation:

when more volts are in a battery the more current you receive.

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Is the visible light color spectrum a small segment of the electromagnetic spectrum?
egoroff_w [7]

Answer:

Yes

Explanation:

The visible light color spectrum only makes up a small segment of the EM spectrum.

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3 years ago
A low orbit satellite at 100 km altitude had a camera that resolved a car location to within 0.3 meter. Find the minimum diamete
NeX [460]

Answer:

Minimum diameter of the camera lens is 22.4 cm

The focal length of the camera's lens is 300cm

Explanation:

y = Resolve distance = 0.3 m

h = Height of satellite = 100 km

λ = Wavelength = 550 nm

Angular resolution

tan\theta\approx \theta =\frac{y}{h}\\\Rightarrow \theta=\frac{0.3}{100\times 10^3}=3\times 10^{-6}

From Rayleigh criteria

sin\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{sin\theta}\\\Rightarrow D=1.22\frac{550\times 10^{-9}}{sin3\times 10^{-6}}=0.2236\ m=22.4\ cm

Minimum diameter of the camera lens is 22.4 cm

Relation between resolvable feature, focal length and angular resolution

d=f\Delta \theta\\\Rightarrow f=\frac{d}{\Delta \theta}\\\Rightarrow f=\frac{9\times 10^{-6}}{3\times 10^{-6}}=3\ m=300\ cm

The focal length of the camera's lens is 300cm

3 0
3 years ago
What is the rate of vibration measured in
jek_recluse [69]

Answer:

I'm not 100% sure tbh but the only thing I think makes sense to represent vibration would be frequency which is measure in Hertz (Hz)

Explanation:

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The peak intensity of radiation from Star Beta is 350 nm. In what spectral band is this? UV, radio waves, visible light, or infa
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I say uv all the way
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4 years ago
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What does an atomic nucleus give off a particle?
____ [38]
The correct answer is answer choice B.
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