All categories

3 years ago

Write a paragraph explaining in your own words how this observation provides evidence to support the big bang theory.

Physics

1 answer:

dmitriy555 [2]3 years ago

5 0

Answer:

The image showcases density fluctuation signal when the CMB scattered, nearly 380,000 years ago. This can only occur after an event theorized and more commonly known as the Big Bang. The Big Bang is how the universe got created from one finite point with everlasting expansion. Now this image directly correlates way below the point of super-horizon, but nevertheless, still shows fluctations moving less than the speed of light.

Explanation:

I got the answer from forbes. Then just wrote a paragraph. However, you did not specify the length so I did 5 sentences. If needed be the question show of stated more in length.

You might be interested in

What are the particles called in a current??

aksik [14]

Electrons

although the conventional current is actually assumed to be a bunch of positive particles moving in the opposite direction

6 0

3 years ago

Read 2 more answers

A solenoid of 2100 turns, area 10 cm2, and length 30 cm carries a current of 4.0 A. (a) Calculate the magnetic energy stored in

nikitadnepr [17]

Answer:

E = 0.1472 J

Explanation:

Given that,

The number of turns in the solenoid, N = 2100

Area of the solenoid, A = 10 cm² = 0.001 m²

The length of the solenoid, l = 30 cm = 0.3 m

Current in the solenoid, I = 4 A

We need to find the magnetic energy stored in the solenoid. The expression for the stored energy is :

$E=\dfrac{1}{2}LI^2$

Where

L is self inductance of the solenoid,

$L=\dfrac{\mu_oN^2A}{l}\\\\L=\dfrac{4\pi \times 10^{-7}\times 2100^2\times 0.001}{0.3}\\\\L=0.0184\ H$

So,

$E=\dfrac{1}{2}\times 0.0184\times 4^2\\\\E=0.1472\ J$

So, 0.1472 J of energy is stored in the solenoid.

3 0

3 years ago

Suppose a car traveling at 8m/s is brought to rest in a distance of 20m.what is it's deceleration and time taken.

LiRa [457]

Answer:

Time - taken = 2.5 s

deceleration= -8 m/s²

Solution:

Given:

speed, v = 8 m/s

distance, d = 20m

To Find:

deacceleration = ?

As we know speed is defined as

v = d/t

plugging in the values

t = 20/ 8

t = 2.5s

Now from deceleration formula

a = - v/ t

a = - 20/ 2.5

a = - 8 m/s²

Thus, the time taken and acceleration is 2.5 s and -8 m/s²

respectively.

Learn more about deceleration here:

brainly.com/question/13354629

#SPJ4

7 0

2 years ago

Which of the following is an example of potential energy?

Papessa [141]

Answer:

Explanation:

potential energy is stored energy so the ball has potential energy to bounce or roll which would then have been converted to kinetic but the rest are in motion meaning energy is no longer stored but used in motion and therefore cannot be potential energy

4 0

3 years ago

A squirrel pulls a 8.7 kg bag of acorns along the ground with a constant force of 80 N. If the force of friction opposing this s

Annette [7]

Answer:

$a=5.51\ m/s^2$

Explanation:

Given that,

The mass of a bag of acorns, m = 8.5 kg

The force acting on the bag = 80 N

The force of friction = 32 N

We need to find the acceleration of the bag of acorns.

Net force acting on it is = 80 N - 32 N

= 48 N

Let a be the acceleration of the bag of acorns. So,

F = ma

$a=\dfrac{F}{m}\\\\a=\dfrac{48}{8.7}\\\\a=5.51\ m/s^2$

So, the acceleration of the bag of acorns is $5.51\ m/s^2$ .

5 0

3 years ago