2 years ago

The maximum mass of a white dwarf is ______ times the mass of the sun.

Physics

1 answer:

Savatey [412]2 years ago

8 0

Answer:

(A)

Explanation:

about 1.4 times the mass of our sun.

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A proton is released from rest at the positive plate of a parallelplatecapacitor. It crosses the capacitor and reaches the negat

Triss [41]

Answer:

2.1406 × $10^6$ m/sec

Explanation:

we know that energy is always conserved

so from the law of energy conservation

$qV=\frac{1}{2}mv^2$

here V is the potential difference

we know that mass of proton = 1.67× $10^{-27}$ kg

we have given speed =50000m/sec

so potential difference $V=\frac{\frac{1}{2}\times 1.67\times 10^{-27}50000^2}{1.6\times 10^{-19}}=13.045$

now mass of electron =9.11× $10^{-31}$

so for electron

$\frac{1}{2}\times 9.11\times 10^{-31}v^2=1.6\times 10^{-19}\times 13.045=2.1406\times 10^6 m/sec$

so the velocity of electron will be 2.1406× $10^6$ m/sec

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3 years ago

How much is required to accelerate a 5kg mass at 20 m/s2

zhannawk [14.2K]

use F = ma

F : force m : mass a : acceleration

f = 5kg * 20 m/s2 = 100 N

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3 years ago

Whar are codes of behavior in the gym that should be followed

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Don't hog the equipment.

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What is one characteristic that is similar between reflection and refraction? They both describe how light rays -

Feliz [49]

The answer is A im pretty sure

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Please help with this science question and please explain if you can! I'm so confused

forsale [732]

In this experiment, the independent variable is the surface, the dependant variable is the distance one end of the surface must be lifted to see movement of the object, and the control variable is the object. Since the surface height at one end is changed and the object is kept the same, the only conclusion that can be made is whether the surface has an effect on the force of friction. Of course, basic physics tells you that it does, therefore A is correct.

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3 years ago