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Tresset [83]
4 years ago
6

What do fuel cells, batteries and, solar cells have in common A.the all produce static electricity B. they are all sources of di

rect current C. they are all sources of alternating current D. can all be used to power automobiles
Physics
2 answers:
Svetlanka [38]4 years ago
4 0
B  and  D  are both true.
A  and  C  are both false.
Vaselesa [24]4 years ago
3 0
The correct answer is B :)
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When Pluto was classified as a planet it was known as a oddball planet why? Why is it less if an oddball now?
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Answer:

a strange world that has baffled scientists ever since it was discovered in 1930. It is not the large gas giant that one might expect to find in the outer reaches of the solar system.

Explanation:

Explanation

7 0
3 years ago
A particle of mass 6.3 x 10-8kg and charge 7.1 muC is traveling due east. It enters perpendicularly a magnetic field whose magni
ASHA 777 [7]

Answer:

t=0.016s

Explanation:

we can use

\frac{v}{r}=\omega=\frac{qB}{m}=\frac{7.1*10^{-6}C*1.7T}{6.3*10^{-8}kg}=191.58s^{-1}

the time that the particle is in the magnetic field is one half oa period. Hence

t=\frac{T}{2}=\frac{\pi}{\omega}=0.016s

I hope this is useful for you

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8 0
3 years ago
The mass of an electron is _______. What is it?
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5 0
3 years ago
A water tank holds water to the depth of the 80cm what is the pressure of the water of the tank​
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7976 Pascals significant figure= 7.9*10^3

Explanation:

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8 0
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The odometer of a car reads 2000km at the start of at trip and 2400km at the end of the trip. If the trip took 8h.calculate tge
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Given:\\s=2400km-2000km=400km\\t=8h\\\\Find:\\v=?\\\\Solution:\\\\v= \frac{s}{t} \\\\v= \frac{400km}{8h} =50 \frac{km}{h} \\\\50 \frac{km}{h} \cdot \frac{1}{3,6} \approx 13,89 \frac{m}{s}
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4 years ago
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