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2 years ago

A galaxy with a lot of dark matter would have a high mass-to-light ratio compared to the Sun. True False

Physics

1 answer:

Ivenika [448]2 years ago

8 0

Yes, a galaxy with a lot of dark matter would have a high mass-to-light ratio compared to the Sun.

<h3>Contribution of dark matter in mass to light ratio?</h3>

This largely invisible matter such as dark matter adds to the mass of the galaxy while it has no contribution in its luminosity which increases the mass-to-light ratio. If dark invisible matter is present in a galaxy, its mass-to-light ratio can be as high.

So we can conclude that the statement is true.

Learn more about galaxy here: brainly.com/question/13956361

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Which of these is NOT a possible type of energy transformation?

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to be franc i really think the answer is B

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3 years ago

What is the speed of the tip of the minute hand of a clock where the hand is of length 7cm?

azamat

Explanation:

Q1) What is the speed of the tip of the minute hand of a clock where the hand is of length 7cm?

Ans1) speed, v=st=2πrT=2×227×7×10-260×60=119×10-4=1.22×10-4m/s

<h2><em><u>Hope it helps</u></em></h2>

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3 years ago

Which type of force will an object move towards?

Makovka662 [10]

Answer:

i think it's weakest

EDIT: It's net. I answered weakest but it was wrong and the correct answer was net. oops

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if a strong force is acting on something it will push it away, meaning the object would go towards the weaker force

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2 years ago

Read 2 more answers

Amanda spent 2/5 of her time after school doing homework and ¼ of her remaining time riding her bike. If she rode her bike for 4

Doss [256]

Answer:120 min

Explanation:

Given

Amanda spent $\frac{2}{5}$ of her time after school doing Home work

And $\frac{1}{4}$ of her remaining time riding her bike

It is given that she rode her bike for 45 minutes in a week

Let t be the time after school

therefore Amanda spend $\frac{2t}{5}$ in home work and $\frac{3t}{5}$ time is left

From remaining $\frac{3t}{5}$ time she spends $\frac{1}{4}$ time riding her bike

therefore $\frac{3t}{5}\times \frac{1}{4}=45$

thus $t=300 min$

therefore time spent on home work is $\frac{2}{5}\times 300=120 min$

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2 years ago

If an electron loses energy what may happen to it

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2 years ago