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NikAS [45]
3 years ago
6

There are stars located in the center bulge of the Milky Way and the spiral arms of the Milky Way. What is the difference betwee

n the stars at the center bulge and the stars in the arms?
Physics
1 answer:
nadya68 [22]3 years ago
5 0

Answer:

The stars at the center bulge are bigger and brighter than the stars in the arms.

Explanation:

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A car is moving in uniform circular motion. If the car's speed were to double to keep the car moving with the same radius, the a
Anestetic [448]

Answer:

Increase by a factor of 4.

Explanation:

The acceleration of a car moving with speed v in a circle of radius R is given by:

a=\frac{v^2}{R}.

Now if we double the speed v in the equation above, it becomes 2v. Thus:

a=\frac{v^2}{R}\:\: {\rightarrow}\:\: a_n=\frac{(2v)^2}{R}=4\frac{v^2}{R}=4a.

Therefore the acceleration is increased by a factor of 4.

7 0
3 years ago
If the temperature at the surface of Earth (at sea level) is 100°F, what is the temperature at 2000 feet if the average lapse ra
oksano4ka [1.4K]

Answer:

107 °F

Explanation:

Given that

The temperature at sea level = 100°F

height ,h= 2000 feet

The average lapse rate = 3.5°F/1000 feet

Given that rise in temperature 3.5°F per 1000 feet.

1000 feet ⇒ 3.5°F

Given that 2000 feet

2000 feet ⇒ 3.5°F x 2 +100°F

2000 feet ⇒ 107 °F

Therefore the temperature will be 107 °F  .

6 0
3 years ago
In what year will there be 8 billion people in the world? <br> 2020 <br> 2022 <br> 2024 <br> 2030
Morgarella [4.7K]

Answer:

2030

Explanation:

6 0
3 years ago
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Which of the following statements applies to current?
Oduvanchick [21]
The answer is A. it is the flow of electric charge. Current in electric circuits is carried by moving electrons in a wire. The current can also be carried by ions in electrolyte. Ampere is the SI unit for measuring an electric current. The electric current is measured using an equipment called ammeter.
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A 0.5 kg ball moving at a speed of 3 m/s rolls up a hill. How does the ball roll before it stops
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It will move 1.5 minutes before it comes to a stopping point.
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