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3 years ago

7

The Moon orbits Earth and not the Sun because the Sun doesn't exert a gravitational force on the Moon. true or false

2 answers:

Nezavi [6.7K]3 years ago

8 0

I think it is true because the litter one s the one that orbits

zhuklara [117]3 years ago

4 0

<span>The answer to that question is the Earth orbits the sun because every planet that it lighter than the Sun will orbit it. The reason that the moon and satellites we launch orbit Earth because they are so much lighter than our planet. So baisicly it goes by lighter!</span>

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2. State Newton's third law of motion.<br>

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Answer:

Action and reaction are equal but act in opposite directions

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3 years ago

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Projectile's horizontal range on level ground is R=v20sin2θ/g. At what launch angle or angles will the projectile land at half o

seraphim [82]

Answer:

$\theta = 15^o \: or\: 75^o$

Explanation:

As we know that the formula of range is given as

$R = \frac{v^2sin2\theta}{g}$

now we know that

maximum value of the range of the projectile is given as

$R_{max} = \frac{v^2}{g}$

now we need to find such angles for which the range is half the maximum value

so we will have

$\frac{R}{2} = \frac{v^2}{2g} = \frac{v^2sin(2\theta)}{g}$

$sin(2\theta) = \frac{1}{2}$

$2\theta = 30 or 150$

$\theta = 15^o \: or\: 75^o$

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3 years ago

What are four types of pathogens and what type of disease or sickness do they cause?

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Fred has a very detailed model of the solar system where each planet is made out of granite rock. Since his little sister really

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Calculate the force needed to give a car of mass 800 kg an acceleration of 2.0 ms−2. plss quick

erik [133]

The force needed to give a car of mass 800 kg an acceleration of 2.0 ms-² is 1600N.

<h3>How to calculate force?</h3>

The force needed to push an object can be calculated by multiplying the mass of the object by its acceleration as follows:

Force = mass × acceleration

According to this question, a car of mass 800 kg has an acceleration of 2.0 ms−². The force is calculated as follows:

Force = 800kg × 2m/s²

Force = 1600N

Therefore, the force needed to give a car of mass 800 kg an acceleration of 2.0 ms-² is 1600N.

Learn more about force at: brainly.com/question/13191643

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1 year ago