The B-2's maximum speed is 628 mph while the speed of sound is 768 mph, so ii is subsonic (the B-2 cannot fly faster than sound).
They travel much, much faster than that.
Because the speed of light is much faster than the speed of sound. Therefore, when the light from that event reaches your eyes, you see it. Then later, the sound from the event reaches your ears, and you hear it. Basically it's just because light travels faster than sound.
Sound is a compression wave that travels via then vibrations of particles. If the particles are closer together then the wave (sound) moves faster. Particles are closer together in a liquid than a gas, therefore sound travels faster through liquids.
In simple terms... light travels much faster than sound. We see the lightning flash first, followed by the sound when it finally reaches us
Light travels much faster then sound. That is what causes the delay.
A lot
The F-22, being an air superiority fighter is naturally much faster. It is reputed to have a top speed in excess of mach2 -about 1450 mph (but you can seldom believe anything they publish, and I would not be surprised if it was faster than this.) -The B-2 is a stealth bomber with a high subsonic speed.
If You are asking about the price of B2 Stealth Bomber, then its about $737 million (1997 cost for each aircraft, $1.01 billion today). And the program cost was about US$44.75 billion (through 2004). Source: Wikipedia
Northrop Grumman B-2 Spirit costs $135.000 an hour in flight and the cost per unit is The cost of each aircraft averaged US$737 million in 1997 dollars ($1.01 billion today). In the related links box below, I posted some information about the stealth bomber.
Much faster in a solid
No one airplane, no one answer. Single seat light plane? Huge jet airliner? Military bomber, fighter, stealth airplane? Not enough information for a good answer.
Light travels faster (much faster) than sound.
About a million times faster
Sound travels faster through solids because, molecules in solids are much closer together so this allows sound waves to travel faster.
They travel much, much faster than that.
Light speed is much faster than the speed of sound, ergo the light you see in lightning is visible, before you here the sound.
Light travels much faster than sound, through wood.