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fgiga [73]
3 years ago
6

A distant galaxy is observed to have its hydrogen-E line shifted to a wavelength of 580 nm, away from the laboratory value of 43

4 nm. Which of the following gives the approximate velocity of recession of the distant galaxy? (Note: LaTeX: \frac{580}{434} \approx \frac{4}{3} )c
a. 0.53c
b. 0.28c
c. 0.86c
d. 0.56c

Physics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

Option B: 0.28c is the correct answer.

Following is given the detailed solution.

I hope it will help you.

Explanation:

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Answer:

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Which state of matter is made up of particles that build repeating patterns such as the crystalline structure of sodium chloride
SCORPION-xisa [38]

B. solid

Explanation:

The solid state of matter is made up of particles that build repeating patterns. Solid is one of the four physical states of matter.

  • Matter is described as anything that has weight and occupies space.
  • The four states of matter are solid, liquid, gas and plasma.
  • Solid particles are known to be closely packed and held together by very strong attractive forces.
  • Solid like sodium chloride are said to be crystalline because they have crystals.
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7 0
3 years ago
Determine the electrical force of attraction between two balloons with separate charges of +3.5 × 10-8 C and -2.9 × 10-8 C when
kenny6666 [7]

Answer:

The electrical force of attraction between the balloons is 2.16\times 10^{-5}\ N.

Explanation:

Given that,

Charge 1, q_1=+3.5\times 10^{-8}\ C

Charge 2, q_2=-2.9\times 10^{-8}\ C

Distance between the charges, d = 0.65 m

We need to find the electrical force of attraction between two balloons. It is given by the formula as :

F=k\dfrac{q_1q_2}{d^2}\\\\F=9\times 10^9\times \dfrac{3.5\times 10^{-8}\times 2.9\times 10^{-8}}{(0.65)^2}\\\\F=2.16\times 10^{-5}\ N

So, the electrical force of attraction between the balloons is 2.16\times 10^{-5}\ N. Hence, this is the required solution.

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Newtons approach was creative because he thought of the new idea passing a single color of light through a prism. His approach was also logical. He reasoned that comparing white light and a single color of light would allow him to compare the two
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