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3 years ago

(๑☯‿☯๑)‎What is space expanding?

Physics

2 answers:

Marysya12 [62]3 years ago

3 0

Answer:

The idea behind space expansion is that after the big bang, the universe started infinitely expanding. It's also called metric expansion. Stephen Hawking's A Brief History of Time goes further into detail on this.

tankabanditka [31]3 years ago

3 0

I was going to help with this one but it looks like you got it all covered !!!!

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A spacecraft heading for Pluto will take pictures of several other planets on its way. The above equation gives the distance, dd

ioda

Answer:

The maximum number of days for the trip

Explanation:

Given

$d = 1.06(212 - t)$ --- Missing Equation

Required

What does d represent?

From the question, we understand that t represent the number of days;

So, by default 212 represent days

Going further:

For the equation, $d = 1.06(212 - t)$ to be valid; the value of t must be within the interval;

$0 \le t \le 212$

When $t = 0;$

that is the beginning of the journey

As t increases;

212 - t decreases

Until the point where t = 212,

This signifies the end of the journey

So: 212 - t indicates a particular day between 0 and 212.

Hence, 212 represents the maximum number of days for the trip.

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3 years ago

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 N weight using a single

Free_Kalibri [48]

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3 years ago

How can I put contour plowing in a sentence

antoniya [11.8K]

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3 years ago

What are the two applications of electron beam welding

salantis [7]

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3 years ago

A spaceship is 1600 m long when it is at rest. When it is traveling at a certain constant speed its length is measured by extern

Firdavs [7]

Answer:

speed of the spaceship is 0.495251 c

Time T = 1.4982 hr

Explanation:

given data

length L1 = 1600 m

length L2 = 1390 m

to find out

speed of the spaceship and time

solution

we know here

L2 = L1 × $\sqrt{1 - V^{2} }$

so we find V by put L1 and L2

1390 = 1600 × $\sqrt{1 - V^{2} }$

V = 0.495251 c

speed of the spaceship is 0.495251 c

and

we know T1 = 1.95 hr

so we find T2

T1 = T2 $\sqrt{1 - v^{2} }$

put here V and T1 so we get T2

1.95 = T2 $\sqrt{1 - 0.495251^{2} }$

Time T = 1.4982 hr

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4 years ago

(๑☯‿☯๑)‎What is space expanding?​

(๑☯‿☯๑)‎What is space expanding?