How does an orbit work and why are things weightless when in orbit? When a canno

Question

How does an orbit work and why are things weightless when in orbit?
When a cannonball is fired parallel to the ground, what forces are acting on it?
If the cannonball starts out moving parallel to the ground, how does the time to hit the ground change as you increase the cannonball’s speed? Why does this happen?
How fast does the cannonball have to be fired so that it doesn’t hit the ground at all?
How is this similar to a spacecraft in orbit around the Earth?
Why doesn’t a spacecraft in orbit fly off into space? Why doesn’t it hit the ground?
How is this similar to the Earth in orbit around the Sun?
Why do astronauts in orbit feel weightless?
How can we use orbits to find the masses of objects in space?
Explain how tides work on the Earth.

What part of the Earth feels the strongest pull from the Moon and what part experiences the weakest pull?
How does this difference in pulls affect the Earth?
Where does the Earth experience high tides? Where does it experience low tides?
Why do we see this affect in the water more than the land?
Why does this give us 2 high tides each day?
How many tidal bulges does the Sun try to produce and how big are they compared to the tides from the Moon?
How do the Sun’s tides modify the Moon’s tides?
When do we experience spring and neap tides?
How have tides affected the Earth's spin and the Moon's spin and orbit?
These are astronomy questions, I do really appreciate your help and I’ll rate your answer! How does an orbit work and why are things weightless when in orbit?
When a cannonball is fired parallel to the ground, what forces are acting on it?
If the cannonball starts out moving parallel to the ground, how does the time to hit the ground change as you increase the cannonball’s speed? Why does this happen?
How fast does the cannonball have to be fired so that it doesn’t hit the ground at all?
How is this similar to a spacecraft in orbit around the Earth?
Why doesn’t a spacecraft in orbit fly off into space? Why doesn’t it hit the ground?
How is this similar to the Earth in orbit around the Sun?
Why do astronauts in orbit feel weightless?
How can we use orbits to find the masses of objects in space?
Explain how tides work on the Earth.

What part of the Earth feels the strongest pull from the Moon and what part experiences the weakest pull?
How does this difference in pulls affect the Earth?
Where does the Earth experience high tides? Where does it experience low tides?
Why do we see this affect in the water more than the land?
Why does this give us 2 high tides each day?
How many tidal bulges does the Sun try to produce and how big are they compared to the tides from the Moon?
How do the Sun’s tides modify the Moon’s tides?
When do we experience spring and neap tides?
How have tides affected the Earth's spin and the Moon's spin and orbit?
These are astronomy questions, I do really appreciate your help and I’ll rate your answer! How does an orbit work and why are things weightless when in orbit?
When a cannonball is fired parallel to the ground, what forces are acting on it?
If the cannonball starts out moving parallel to the ground, how does the time to hit the ground change as you increase the cannonball’s speed? Why does this happen?
How fast does the cannonball have to be fired so that it doesn’t hit the ground at all?
How is this similar to a spacecraft in orbit around the Earth?
Why doesn’t a spacecraft in orbit fly off into space? Why doesn’t it hit the ground?
How is this similar to the Earth in orbit around the Sun?
Why do astronauts in orbit feel weightless?
How can we use orbits to find the masses of objects in space?
Explain how tides work on the Earth.

What part of the Earth feels the strongest pull from the Moon and what part experiences the weakest pull?
How does this difference in pulls affect the Earth?
Where does the Earth experience high tides? Where does it experience low tides?
Why do we see this affect in the water more than the land?
Why does this give us 2 high tides each day?
How many tidal bulges does the Sun try to produce and how big are they compared to the tides from the Moon?
How do the Sun’s tides modify the Moon’s tides?
When do we experience spring and neap tides?
How have tides affected the Earth's spin and the Moon's spin and orbit?
These are astronomy questions, I do really appreciate your help and I’ll rate your answer!

Explanation / Answer

1. In a orbit due there is external contact force that is pulling or pushing he body so only gravity is the only force that is acting on the body.So things are weightless.

2.The canon ball is fired due to heat energy in the form of friction as the ball rubs the barrel and both forward and backward force apply.

3.The canonball doesnt travel very far as they fall .So on this approximation one object which is dropped another one is fired horizontally will fall together.

4.The canon ball would not hit the earth if it would be fire from vaccum.But in earth it has to be to sent in a spped so that the path it drops in one second should match with the distance of the downward curvature of earth.

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