What does the red shift suggest about the universe?

Answers

Answer 1

Answer: So far, the only way we know to explain the red shift is
as an effect of the light sources moving away from us.
That's the basis of the whole idea of the expanding universe,
and ultimately, the big bang theory.

If we ever find another mechanism that can produce the same
shift in the wavelengths of light without the source moving away
from us, then the whole system of the expanding universe and the
big bang theory will fall apart.

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During a thunder storm, movement of water molecules within clouds creates friction which causes the bottom of the clouds to become negatively charged. This means that the bottom of the cloud and the ground begin to act like parallel plates. Once the electric field between the clouds and the ground becomes larger than 3.0 x 10^6 N/C, lightning will strike. a. If the bottom of the cloud is 150 m above the ground, determine the electric potential difference between the ground and the cloud.

What is the time required for an object startingfrom rest to fall freely 500. meters near Earth’s
surface?
(1) 51.0 s (3) 10.1 s
(2) 25.5 s (4) 7.14 s

Answers

The time required for an object starting from rest to fall freely 500. meters near Earth’s is 10.1 s

Without air resistance Distance = 1/2 g T²

500 m = (1/2) (9.8 m/s²) (T²)

500 m = (4.9 m/s²) (T²)

Divide each side by (4.9 m/s²)

T² = (500 m) / (4.9 m/s²)

= 102.04 s²

T = √ (102.04 s²)

T = 10.1 seconds

To learn more about how to Calculate Distance refer:brainly.com/question/661229

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(3) 10.1 second Using equation of motion 500 = (0.5)(9.81)t^2. Rearranging, t = sqrt(1000/9.81) = 10.1s

Who was the woman to win Nobel Prize in physics in 1903?

Answers

Answer:

Marie Curie

Explanation:

She was a physicist and chemist and also the first person to win the Nobel prize in physics

Who was the man who lived from 460B.C.–370B.C. and was among the first to suggest the idea of atoms?a. Atomos
c. Democritus
b. Dalton
d. Thomson Please select the best answer from the choices provided A B C D

Answers

c. Democritus was a Greek philosopher who defined the concept of atoms and is the only one of the answer choices who lived during that time period.

The red LED consists of a white LED covered with a red filter. What does the red filter do?

Answers

White light is light that's made up of ALL colors.

If you have a source of white light and you want red light,
then you have to REMOVE all the other colors from the
white light somehow.

That's what a red filter does. The dye in the filter has chemicals
that absorb every color of light except red. Then, red light is the
only thing left to come out of the other side.

(If the light going into the filter had no red in it, then the filter
would appear black, because there wouldn't be any light
coming out of it at all.)

Answer:

black is it

Explanation:

An object is thrown vertically upward with an initial velocity of 50 m/s. Finda) the maximum height reached by the object.
b) the time taken to reach this height. (neglect the effect of air resistance).

Answers

the answers B because your doing m/s

Alternative between running snd walking

Answers

this would have to be jogging

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What is the equation for calculating electric power?