Physics - June 2006

Suppose a train is traveling north at a velocity of 100 m/hr. At a certain point thunder falls 50 miles north and 50 miles south of the train at the exact same instant. If you could be able to measure this, which thunder bolt would you see first?

2006-06-28 04:25:52 · 16 answers · asked by Anonymous

2006-06-28 03:25:56 · 15 answers · asked by buddythecat 1

I DONT KNOW. EINSTIEN WAS TOO SMART!

2006-06-28 03:20:49 · 16 answers · asked by Anonymous

2006-06-28 03:09:47 · 6 answers · asked by Anonymous

2006-06-28 03:03:26 · 16 answers · asked by Anonymous

2006-06-28 02:48:49 · 1 answers · asked by Anonymous

2006-06-28 02:36:56 · 7 answers · asked by Anonymous

2006-06-28 02:33:39 · 6 answers · asked by Anonymous

2006-06-28 02:03:41 · 12 answers · asked by pulga0888 2

if isn't energy that means is nothing(vacuum).. and if is vacuum that mean we can't measure time... so.. we can only mesure time when energy is presence :D (let me advertise my site WWW.SOFTSUPPLiER.COM)

2006-06-28 01:50:00 · 4 answers · asked by brlmnd 1

2006-06-28 01:45:55 · 27 answers · asked by poisonwhiskey3 1

Is it possible to travel backwards in time? Why? Why not? And how would you do that?

2006-06-28 01:14:03 · 10 answers · asked by Dan N 1

2006-06-28 01:11:04 · 6 answers · asked by meghnad_s 1

2006-06-28 00:57:29 · 6 answers · asked by da1U<32haT3 3

Whats it protecting itself from?

2006-06-28 00:55:25 · 12 answers · asked by da1U<32haT3 3

wavelength? (c) To what class of em waves does it belong?

2006-06-28 00:54:42 · 1 answers · asked by russ23 1

2006-06-28 00:45:32 · 7 answers · asked by jlynn 1

2006-06-28 00:43:54 · 3 answers · asked by jlynnr23 1

2006-06-28 00:34:31 · 3 answers · asked by jj23 1

2006-06-27 23:40:52 · 6 answers · asked by Marc E Fresh 1

2006-06-27 23:34:41 · 6 answers · asked by Anonymous

I know that normal objects can't travel at the speed of light, only subatomic particles can, therefore the questions is purely hypothetical. However, the same problem appears when for example you're traveling at the same speed as a particular beam/wave and emitting it into a reflective surface traveling at the same speed you are at.

Einstein formulated to postulates that explained what would happen but only for objects moving at speeds slightly slower than light speed.

My question is what would a person traveling at the speed of light see in a mirror he is holding out in front of him?

2006-06-27 23:11:58 · 11 answers · asked by Johnny Buzz 2

Suppose you have a tall cylindrical pail, and you fill it up with water until the water level reaches height H. The pail is spun around (centered in the center) and the water leaves the center and gathers to the sides of the pail due centrifugal force. Eventually, a parabolic cone 'hole' is formed in the water, with the vertex of the parabola just touching the bottom of the pail.

What is the height of the water at the sides? (in terms of H)

2006-06-27 22:52:33 · 8 answers · asked by Pinsir003 3

ieved

2006-06-27 22:08:16 · 9 answers · asked by tellme 2

please only answer if you know

2006-06-27 21:06:21 · 18 answers · asked by MiG 2

If one makes a straight tunnel (approx. 20m diameter) on the north pole that comes out on the south pole, and throws an object from the north pole into the tunnel. Where will the object finally be?

2006-06-27 21:00:11 · 34 answers · asked by Anonymous

2006-06-27 20:47:37 · 6 answers · asked by hsa_realme 1

A 2.00 kg block hangs from a spring. A 300 gram object hung below the block stretches the spring an additional 2.00 cm. The 300 gm object is removed and the 2.00 kg block begins oscillating. What is the period of oscillation?

2006-06-27 20:31:44 · 3 answers · asked by Sagely 4

A metal sphere of radius 0.526 meters, temperature 27.3 ° C, and emissivity 0.851 is located in an environment of temperature 77.2 ° C. What is the sphere’s net rate of energy exchange with its environment?

show your method if possible,thanks

2006-06-27 20:30:33 · 1 answers · asked by Sagely 4

You are given vectors A= 5.10 ihat −6.90 jhat and
B= −3.50ihat+ 6.90jhat. A third vector C lies in the xy-plane. Vector C is perpendicular to vector A and the scalar product of C with B is 18.0 .

Find the x-component of vector C.

Find the y-component of vector C.

Anybody know the equation?

2006-06-27 20:28:30 · 2 answers · asked by Sagely 4