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Darya [45]
3 years ago
14

How does the sun keep the earths surface warm

Physics
1 answer:
Elan Coil [88]3 years ago
5 0

Answer:

The sun heats the earth through radiation. Since there is no medium  in space, radiation is the primary way that heat travels in space. This heat transfer is called conduction

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You are taking care of two small children, Sarah and Rachel, who are twins. On a nice cool, clear day you decide to take them ro
BlackZzzverrR [31]

Answer:

Explanation:

Rachel and Sarah are standing on horizontal ground . Let T₁ be the tension between Rachel and Sarah and Sarah is in between you.

Force = mass x acceleration

Apply this equation on Rachel

T₁ = 23 x 2 = 46 N

Let T₂ be tension between Sarah and me and it is inclined at 60°

Force = mass x acceleration

Apply this equation on Sarah

T₂ cos 60 - T₁ = 23 X 2 = 46

T₂ cos 60 - 46 =46

T₂ cos 60  = 92

T₂ = 92 / .5

= 184 N

5 0
3 years ago
Read 2 more answers
A badminton player shuffles his shoes in resins explain the scientific reason behind this​
Kobotan [32]

Answer:

To avoid slipping while playing badminton or to increase friction between the shoes and the badminton court or to enhance the grip.

Explanation:

As the question is general so I will try answer it generally.

As badminton court is usually slippery and flat with no or very little friction and while playing badminton, players have to move very fast from place to place.

So, in order to effectively move faster to take the difficult shots with accuracy badminton players increase the friction between their shoes and the badminton court by shuffling resin to their shoes. It helps to enhance the grip.

4 0
3 years ago
An object with mass 80 kg moved in outer space. When it was at location <7, -34, -7> its speed was 14.0 m/s. A single cons
Sergio [31]

Answer:

W = -2080 J

Explanation:

initial position vector of the object is given as

r_i = 7\hat i - 34\hat j - 7 \hat k

similarly final position vector is given as

r_f = 12\hat i - 42\hat j - 11\hat k

now the displacement of the object is given as

\vec d = \vec r_f - \vec r_i

now we will have

\vec d = (12\hat i - 42\hat j - 11\hat k) - (7\hat i - 34\hat j - 7 \hat k)

\vec d = 5\hat i - 8\hat j- 4\hat k

now the force on the object is given as

\vec F = (200\hat i + 460 \hat j - 150 \hat k)

so here in order to find the work done

W = \vec F . \vec d

W = (200\hat i + 460 \hat j - 150 \hat k). (5\hat i - 8\hat j- 4\hat k)

W = 1000 - 3680 + 600 = -2080 J

7 0
3 years ago
The masses of two heavenly bodies are 2×10‘16’ and 4×10 ‘22’ kg respectively and the distance between than is 30000km. find the
ycow [4]

F = 5.93×10^{13}\:\text{N}

Explanation:

Given:

m_1= 2×10^{16}\:\text{kg}

m_2= 4×10^{22}\:\text{kg}

r = 30000\:\text{km} = 3×10^7\:\text{m}

Using Newton's universal law of gravitation, we can write

F = G\dfrac{m_1m_2}{r^2}

\:\:\:\:=(6.674×10^{-11}\:\text{N-m}^2\text{/kg}^2)\dfrac{(2×10^{16}\:\text{kg})(4×10^{22}\:\text{kg})}{(3×10^7\:\text{m})^2}

\:\:\:\:= 5.93×10^{13}\:\text{N}

3 0
3 years ago
Which of Earth's compounds makes the planet unique because it can exist in solid, liquid, or gaseous states under normal conditi
lukranit [14]
That's the description of WATER.
3 0
4 years ago
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