# Yahoo Web Search

1. ### Quick Physics Question about Refraction!?

...of light in vacuum] / [speed of light in medium] = n Therefore speed of light through the glass = c / 1 .5 = (3.0 * 10 ^8 / 1 .5) = 2.0 * 10 ^8 m/s [time taken] = [distance] / [speed] = (3.0 * 10 ^-3...

1 Answers · Science & Mathematics · 06/05/2012

2. ### An electron travels at a speed of 3.0×104 m/s through a uniform magnetic field whose magnitude is 1 .2× 10 −3 T?

... and show you how i do it.... Question:...at a speed if 2.0x104 m/s through a uniform magnetic field whose magnitude is1.2- 10 -3 T. What ... =QvBsinF = ( 1 .610 19 C)(2.0104 m/s...

1 Answers · Science & Mathematics · 06/02/2011

3. ### Physics problem about wavelengths?

well the speed of all electromagnetic wave is 3 * 10 ^8 m/s therefore formula = period = wavelengh/velocity 1 .5* 10 ^- 1 /3 * 10 ^8 = 1 .5/3 * 10 ^-9 period =0.5 * 10 ^-9secs...

3 Answers · Science & Mathematics · 08/06/2009

4. ### Why does light spread out horizontally if you shoot it through a slit less than 1 /100th of an inch?

... a wavelength of 400-700nm or 400-700 x 10 ^-9 m. So if it's passed through a slit of that size it diffracts...and vertically. Just like a water wave does when passes through a small hole or...

1 Answers · Science & Mathematics · 07/11/2011

5. ### when a magnet is pushed back and forth 1 time per second through a coil of wire made of 10 loops, it produces?

... and push the magnet at the same rate. In pushing it through 10 loops at a rate of 1time per second, every loop that it passes through will generate 1 ampere. So if you were to increase the number of ...

4 Answers · Science & Mathematics · 01/03/2009

6. ### Refraction Physics Problem?

...the glass, which is 2.0 x 10 ^-3 m Time needed to travel through that distance = (2.0 x 10 ^-3) / (2 x 10 ^8) = 1 x 10 ^-11 seconds

1 Answers · Science & Mathematics · 10/05/2012

7. ### how do you solve 4.3=2/( 1 /2.5+ 1 /x) solving for x, go through the steps 1 by 1 .?

multiply out 1 /2.5+ 1 /x to get (x+2.5)/2.5x so now you have 4.3 = 2/(x+2.5)/2.5x = 5x/(x+2.5) multiply both sides by x+2.5 4.3(x+2.5) = 5x => 4.3x+ 10 .75=5x 5x-4.3x = 10 .75 .7x = 10 .75 x = 15.357 or 15.4

3 Answers · Science & Mathematics · 05/09/2008

8. ### If a 1 .61 A current flows through the leads of an electrical appliance, how long does it take for 7.12 C of charge to pass through ?

... one coulomb of charge passes through the lead wires each second... * time = Charge 1 .61 * t = 7.12 t = 7.12 ÷ 1 .61 ...charge of one electron is 1 .60 * 10 ^-19 coulombs. To determine...

2 Answers · Science & Mathematics · 26/09/2015

9. ### How fast does light travel through a dia- mond?

3. 10 ^8 / 2.4 = 1 .25 . 10 ^8 m/s Pretty easy... you have to do these yourself... give yourself the chance to be wrong, which is when you learn. You will usually be correct which is when you realise that you do grasp stuff.

4 Answers · Science & Mathematics · 25/04/2010

10. ### A glass window (n = 1 .5) has a thickness of 2.0 10 -3 m. How long does it take light to pass perpendicularly t?

speed of light through glass Cg = Co / = 3x10^8 / 1 .5 = 2x10^8 m/sec then time taken t = d / Cg = 2x10^-3 / 2x10^8 = 10 ^-11 sec.

1 Answers · Science & Mathematics · 24/03/2012