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Ilia_Sergeevich [38]
2 years ago
7

How many stars are in a galaxy? hundreds thousands millions billions.

Physics
1 answer:
faust18 [17]2 years ago
7 0

Answer:

Billions :)

<em>hope this helps! <3</em>

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A 50-gram sample of water is initially at a temperature of 22 °C. The sample is heated until the temperature is 32 °C The specif
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Answer:

500cal

Explanation:

Given parameters:

Mass of water  = 50g

Initial temperature  = 22°C

Final temperature  = 32°C

Specific heat of water  = 1cal/g

Unknown:

Amount of heat absorbed by the water in calories  = ?

Solution:

To solve this problem, we use the expression below:

       H  = m c Ф

H is the amount of heat absorbed

m is the mass

c is the specific heat capacity

Ф is the temperature change

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5 0
2 years ago
Is the alien theory a scientific claim? Why or why not?
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I'm not sure what the alien Theory says or if there really is such a theory. If the theory says that aliens definitely exist and that they have visited Earth in the past then the theory is totally and completely without any kind of support. It's not scientific in any way because there is no evidence for such a claim. It may be thought to be probable but no solid evidence has ever been presented.
8 0
2 years ago
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A ball is dropped from rest from a high window of a tall building and falls for 4 seconds. Neglecting air resistance, the final
Semenov [28]

Answer:

The final velocity of the ball is 39.2 m/s.

Explanation:

Given that,

A ball is dropped from rest from a high window of a tall building.

Time = 4 sec

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Using equation if motion

v=u+gt

Where, v = final velocity

u = initial velocity

g = acceleration due to gravity

t = time

Put the value into the formula

v=0+9.8\times4

v=39.2\ m/s

Hence, The final velocity of the ball is 39.2 m/s.

6 0
3 years ago
In order to control bacterial infections and/or food poisoning, the FDA (Food and Drug Administration) has approved the use of n
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The answer is food irradiation. This involves the brief exposure of food to gamma rays or X-rays to kill pathogens that may contribute to food spoilage. This increases the shelf-life of the food. Gamma rays and X-rays emanate from nuclear decay of radioactive materials such as uranium..

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3 years ago
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In the movie "gravity" - Why did the escape pod get stuck and pulled back?
victus00 [196]

Answer:

because nono gravity

Explanation:

no gravity

3 0
2 years ago
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