As an object accelerates toward the speed of light it's mass (and weight) increases, at the speed of light (c) the objects mass would be infinite, making it impossible for any object to accelerate to light speed. So, "no" an object does not weigh less by moving faster in a vacuum, the faster it goes the more it weighs and the slower time goes. The change in mass and time occurs because near light speed the variable "c" is more fixed and the remaining variables (time and mass) must change to maintain balance.
It goes faster after it is hit.
Yes. In fact light traveling through air moves slower than when traveling through a vacuum. Light traveling from the Sun travels through space which is almost a vacuum. Stars are suns and light from them goes through the interstitial areas between galactic clusters which is very close to a total vacuum.
Planes, on average, are faster than trains. With most planes traveling at 400 to 500mph while even the fastest conventional train in regular operation only goes 200mph
by definition a vacuum is empty. as in nothing. there is nothing in a vacuum. so the answer is, by current knowledge, that nothing happens in a vacuum
Sound speeds up when it goes into water from air. Sound travels much faster in water than in air.
"VAcuum advance". Step on it, vacuum goes down and it advances timing for more performance/power. Idle of letting off, advance goes back to setting for economy.
no!
Use a suction vacuum plugged into your skimmer to vacuum to waste.
On my 1978 Camaro one vacuum line goes to the EGR valve and the other goes to the carbuerator.
a dingo is faster it goes 59 mph a jaguar only goes 44 mph
If it goes back it is slower, if it goes forward it is faster
There are many vacuum hoses. All originate from the intake manifold or plenum. There are 2 major vacuum hoses. One goes to the brake booster and one goes to the PCV valve.