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diamong [38]
3 years ago
14

Why does an astronaut have to use electrical medium to talk in the space​

Physics
2 answers:
Evgen [1.6K]3 years ago
8 0

Explanation:

because there is no air to communicate

Mars2501 [29]3 years ago
8 0

yur answer mate hope it helps

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The mass of a triton is
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2.14x 1022 kg 

the 22 is a xponet of ten
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3 years ago
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215 = 25x – 35, solve for x.
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Add 35 to 215. then divide by 25. you should get x=10
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Sometimes a person cannot clearly see objects close up or far away. To correct this type of vision, bifocals are often used. The
Alexxx [7]

Answer:

The power of top half of the lens is 0.55 Diopters.

Explanation:

Since, the person can see an object at a distance between 34 cm and 180 cm away from his eyes. Therefore, 180 cm must be the focal length of the upper part of lens, as the top half of the lens is used to see the distant objects.

The general formula for power of a lens is:

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3 0
3 years ago
Please help answer the question in the screenshot. it's multiple choice..
Talja [164]

Answer:

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F = 6.67 * 19E-11 * 2.79 * 9.47 * 10E23 / (1.2 * 10^7)^2

F = 126 * 10E-2 N  = 1.22 N

7 0
3 years ago
A white car is traveling at the legal speed limit v0 along an interstate highway. A blue car traveling in the same direction at
Allisa [31]

Answer:

the distance between two cars becomes d = \frac{v_o^2}{2a_b} when blue car travels at legal speed

Explanation:

Initially the relative speed of the two cars is given as

v_r = v_b - v_w

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now the relative acceleration of blue car with respect to white car

a_r = -a_b

now the distance between two cars till the relative speed of two cars comes to zero

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0 - v_o^2 = 2(-a_b)d

d = \frac{v_o^2}{2a_b}

so the distance between two cars becomes d = \frac{v_o^2}{2a_b} when blue car travels at legal speed

4 0
4 years ago
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