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Stolb23 [73]
3 years ago
12

While in empty space, an astronaut throws a ball at a velocity of 13 m/s. What will the velocity of the ball be after it has tra

veled 6 meters?
Physics
2 answers:
aliya0001 [1]3 years ago
8 0
In empty space, there's nothing to exert force on the ball after it leaves
her hand.  It sails away in a straight line, at constant speed of 13 m/s. 
If it doesn't sail too close to a planet, a star, an asteroid, or a moon, it
may travel 6 billion light years and still be moving at 13 m/s.
Alex787 [66]3 years ago
5 0

Answer: The answer is 13 m/s

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If we separate Earth's layers based on mechanical properties, how many are there? What are they? How do their properties differ?
solniwko [45]
<h2>Answer:</h2>

There would be 2 layers: lithosphere and asthenosphere

Explanation:

They contradict each other because the lithosphere consists of the crust as well as the portion of the upper mantle, which acts as a brittle, rigid solid. the asthenosphere is a partially molten upper mantle material that acts plastically and can flow.

<h3>Or you can think of it as:</h3>

The lithosphere is the brittle crust and uppermost mantle. The asthenosphere is a solid but it can flow, like toothpaste. The lithosphere rests on the asthenosphere.

4 0
3 years ago
An influence that can deform a flexible abject or change the motion of an object with mass.​
algol13

Answer:

An influence that can deform a flexible abject or change the motion of an object with mass.​ Answer is  A force

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7 0
3 years ago
În ce raport de mase trebuie amestecate două cantități din același lichid, având temperaturile t1=10 grade Celsius, respectiv t2
Brilliant_brown [7]

Răspuns:

7: 4

Explicaţie:

Formula pentru calcularea cantității de căldură absorbită este exprimată ca;

Q = mc∆t

m este masa substanței

c este capacitatea termică specifică

∆t este schimbarea temperaturii

Conform legii calorimetriei, căldura pierdută de substanța rece = căldura câștigată de substanța fierbinte.

Folosind formula

(mc∆t) rece = (mc∆t) fierbinte

McCw∆tc = MhCw∆th

Deoarece au aceeași capacitate de căldură specifică, se vor anula. Ecuația devine;

Mc∆tc = Mh∆th ...... 1

Pentru apa rece;

∆tc = 45 ° C - 10 ° C

∆tc = 35 ° C

Pentru apa fierbinte:

∆th = 65 ° C - 45 ° C

∆th = 20 ° C

Înlocuiți în ecuația 1;

Mc (35) = Mh (20)

35Mc = 20Mh

Luând raportul dintre masa apei reci și cea fierbinte:

Mh / Mc = 35/20

Mh / Mc = 7/4

Prin urmare, lichidul trebuie amestecat împreună în raportul 7: 4

8 0
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A burning piece of coal glows red on a lab table. A student wants to prevent the coal from transferring heat to him. He sets up
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A. The metal shield will heat up, and then heat the air on the student's side of the shield.
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True or false questions for work and power.​
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