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3 years ago

The force that pulls planets toward the Sun is called _____. nuclear fusion gravity magnetism differentiation

Physics

2 answers:

ludmilkaskok [199]3 years ago

8 0

<u>Answer</u>

Gravity

<u>Explanation</u>

Gravity is the force of attraction between two bodies of given masses. The planet and the sun are two big bodies that are pulled together by gravitational force.

The two bodies are not charge and so the cannot be magnetism. Fusion is a nuclear force and it is not related to attractive forces.

Alona [7]3 years ago

7 0

The pair of equal forces that pull a planet and the Sun
toward each other are gravitational forces.

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2 years ago

You are standing in a building whose height (40m) you throw a ball downward at a angle of -30 at a speed of (10m/s) acceleration

jeyben [28]

Answer: 3.41 s

Explanation:

Assuming the question is to find the time $t$ the ball is in air, we can use the following equation:

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Where:

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$\theta=30\°$

Then:

$0 m=40 m+(10 m/s)(sin(30\°))t-\frac{1}{2}9.8 m/s^{2}t^{2}$

$0 m=40 m+5m/s t-4.9 m/s^{2}t^{2}$

Multiplying both sides of the equation by -1 and rearranging:

$4.9 m/s^{2}t^{2}-5m/s t-40 m=0$

At this point we have a quadratic equation of the form $at^{2}+bt+c=0$ , which can be solved with the following formula:

$t=\frac{-b \pm \sqrt{b^{2}-4ac}}{2a}$

Where:

$a=4.9$

$b=-5$

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Substituting the known values:

$t=\frac{-(-5) \pm \sqrt{(-5)^{2}-4(4.9)(-40)}}{2(4.9)}$

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3 years ago

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3 years ago

Using Mirror equation A, Calculate The Frequency Of The Long Stand And The Shortest Wave Length Of That An Object Is Placed Of A

Leya [2.2K]

The Image distance and Magnification of The Image will be 30 cm and 3.

<h3>What is focal length?</h3>

The focal length of the lens, which is often expressed in millimeters, is the distance between the lens and the image sensor when the subject is in focus.

Given data;

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To learn more about the focal length refer;

brainly.com/question/16188698

#SPJ1

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