Yes, because there will be no air resistance.
yes as radiation travels from the sun through a vacuum to earth
Yeah, radiation can travel in vacuum and a practical example of it is the radiation of sun coming to earth and traveling through space.
Yes, think of the radiation from the Sun, it must travel through the vacuum of space to warm our own planet Earth.
sound requires a medium, such as air, to travel. Space is a vacuum, so sound doesn't travel from the sun to earth.
The light travel directly through the vacuum and reaches earth
Light waves do not require a medium through which to travel. They will travel (propagate) perfectly well in a vacuum. Otherwise, light would not pass through the vacuum of space. It would be very dark here on earth as the light from the sun, moon and stars could not reach Earth through the vacuum of space.
No way! There is vacuum where no sound can travel.
as electromagnetic radiation
Sound cannot travel through vacuum. It needs a medium, such as air, water, earth, etc.
It doesn't. if a bullet were shot from earth into space and had enough acceleration to pull away from earth's gravity, it would travel indefinitely until hitting an object.
Yes. Just look at how heat travles from space to Earth.
The further away from the Earth's surface you travel - the weaker the gravitational pull is.