2006-10-03 17:16:13 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
i have to do a science report of three fastest objects.
2006-10-03 17:39:55 · update #1
i need the answer by today cause my science report is due tomorrow....
2006-10-03 18:09:26 · update #2
light
2006-10-03 17:17:36 · answer #1 · answered by MojoFace 2 · 0⤊ 0⤋
Particles with mass can only approach the speed of light. Particles with no mass can go no slower than the speed of light.
1. The fastest entities are photons, the massless particles that convey electromagnetic energy. Photons can only travel at the speed of light.
2. The next fastest entities are high energy neutrinos which travel at speeds very close to the speed of light.
3. The next fastest entities are high energy electrons and positrons which travel a bit slower than neutrinos.
The fastest particles accelerated by humans are high energy electrons.
The velocity of a particle is given by the equation:
v = c * ( 1 - ( m0/mr )^2 )^0.5
Where v is the velocity, c is the speed of light, m0 is the rest mass, and mr is the relativistic mass.
The Stanford Linear Accelerator can accelerate electrons to energy levels of 51 GeV. Since the rest mass of an electron is 510 keV, the equation above yields a velocity of 299,792,457.985 meters per second or 99.999999995% of the speed of light.
2006-10-03 17:55:39 · answer #2 · answered by Deep Thought 5 · 2⤊ 0⤋
According to modern cosmology, the speed of light is a maximum speed for any matter. Only photons travel at that speed. Of course, they cannot travel any slower than that either.
2006-10-03 17:26:03 · answer #3 · answered by Karl the Webmaster 3 · 0⤊ 0⤋
Brain
2006-10-03 19:19:31 · answer #4 · answered by Oni 1 · 0⤊ 0⤋
George Bush's poll numbers, going down....
That or Mark Foleys fingers as they type IM's to underage male pages.
2006-10-03 17:25:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
about the first 2 answers...light is made of photons.....so I think it's the same....
light is the fastest thing....
2006-10-04 01:04:23 · answer #6 · answered by P.Y.T. 3 · 0⤊ 0⤋
A jet with a booster rocket .
2006-10-03 17:22:10 · answer #7 · answered by missmayzie 7 · 0⤊ 0⤋
electrons, they travle so fast they are every where in every moment and go faster than the speed of light
2006-10-03 17:24:54 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Light.
Neutrino.
Graviton.
2006-10-03 22:02:30 · answer #9 · answered by Lutfor 3 · 0⤊ 0⤋
a frog in a blender
2006-10-03 17:18:48 · answer #10 · answered by Anonymous · 0⤊ 0⤋