2 years ago

Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?

Physics

1 answer:

Flura [38]2 years ago

4 0

Answer:

TO answer this question i need wave speed

Explanation:

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The release of energy by the nucleus of an atom as a result of nuclear fission is radiant energy

Ira Lisetskai [31]

Nuclear Energy
Energy released by nuclear fission or fusion.
So I think the answer is true.

5 0

2 years ago

Two charges lie on the x axis, +3q at the origin, and -2q at x = 5.0 m. The point on the x axis where the electric potential has

MrRa [10]

Answer:

Explanation:

q1 = 3q at (0,0)

q2 = - 2q at (5, 0)

Let the potential is zero at a distance x from the origin

$V_{1}+V_{2}=0$

$\frac{k\times 3q}{x}-\frac{k\times 2q}{5-x}=0$

15 - 3x = 2x

5x = 15

x = 3 m

Thus, the potential is zero at x = 3 m .

Option (d) is true.

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3 years ago

V391 Pegasi b is a star that is 4,570 light years away from Earth. What is this distance in kilometers? (One light year is about

WARRIOR [948]

Answer:

43,232 trillion km

Explanation:

Light year is the unit of distance. It is very big unit and used to measure the distances between the heavenly bodies.

1 light year = 9.46 trillion Km

So, convert 4570 light year into Km

= 4570 x 9.46 = 43232.2 trillion Km

So, the answer is 43,232 trillion Km

4 0

3 years ago

Read 2 more answers

HELP what is the answer to this question?

Dennis_Churaev [7]

I think it’s c sorry if wrong

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2 years ago

Two conductors are made of the same material and have the same length. conductor a is a solid wire of diameter 1.3 mm. conductor

max2010maxim [7]

I think the answer is 3

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3 years ago