Physics - February 2007

2007-02-26 05:56:12 · 6 answers · asked by Crystal D 1

at least where can i find an answer to it. I've already tried wikipedia and got nothing abut it.

2007-02-26 05:49:10 · 4 answers · asked by helena_m_p 2

2007-02-26 05:39:24 · 16 answers · asked by sumitbaran 2

2007-02-26 05:25:01 · 3 answers · asked by Padmini Gopalan 4

2007-02-26 05:19:00 · 3 answers · asked by Jason 1

Electrons in an atom can only have certain energies. We say that the energy of the electron is__________ .
Bohr said that only certain orbits were possible for an electron in a H atom because the orbit must contain an ________ number of electron wavelengths.
deBroglie proposed that particles have___________ properties.
The wavefunction describing the electron is a________ function that describes everything about the electron.
The wavefunction squared gives the __________ of finding the electron at a point in space.
A map of probability for finding the electron in 3 dimensions in space is called an _________ .

2007-02-26 05:08:01 · 1 answers · asked by lsubetty 2

does the box seperate the colours out in the middle or does the light come out in a different direction[not in a straight line through it] ?

2007-02-26 05:05:50 · 2 answers · asked by mosh[rumplesmoothskin] 1

2007-02-26 04:58:35 · 2 answers · asked by jakubeam 1

Class 9 CBSE
1) A meteorite burns before entering the earth' s atmosphere. What will happen to the momentum ?

2) A device turning mechanical energy into electric energy.

2007-02-26 04:54:19 · 6 answers · asked by chhavi k 1

2007-02-26 04:52:33 · 3 answers · asked by amanda f 2

2007-02-26 04:50:34 · 1 answers · asked by brittenybryant 1

A 17 g bullet is fired from a rifle. It takes 2.75*10-3 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 616 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted on the bullet.

2007-02-26 04:46:04 · 2 answers · asked by softball579 1

2007-02-26 03:52:49 · 7 answers · asked by Anonymous

2007-02-26 03:51:57 · 5 answers · asked by supremecritic 4

An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 450 g sample of silver at an initial temperature of 89°C is placed in the water. The stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Calculate the mass of the aluminum cup.

2007-02-26 03:51:12 · 1 answers · asked by Kelly C 1

If I need to double the centripetal force on an object moving in a circle, do I need to increase or decrease the object’s speed? And by how much (percent)?

2007-02-26 03:47:02 · 5 answers · asked by GSU 1

If a motorcycle is driven around a vertical loop (radius = 12 meters), what is the minimum speed at the top of the loop to ensure the cycle is held to the loop?

2007-02-26 03:46:46 · 1 answers · asked by GSU 1

If a GPS satellite (circular orbit) has an orbital period of 12 hours, what is its distance from the Earth? And what is its velocity? (Hint convert time to seconds)

2007-02-26 03:46:22 · 1 answers · asked by GSU 1

If I’m driving my car at 24.6 m/s and while I’m driving an unbanked turn, my centripetal acceleration is 0.6g’s ( 1g equals 9.8 meters per second squared), what is the turn’s radius?

2007-02-26 03:45:53 · 1 answers · asked by GSU 1

2007-02-26 03:36:38 · 2 answers · asked by John M 2

The puck slides along inclined plane.
Initial velocity of the puck is in horizontal direction
(i.e. at right angle to plane inclination)
and has absolute value v0 = 1m/s.
The angle of inclination is adjusted so, that coefficient
of kinetic friction is exactly equal to tan(a).

What is terminal velocity v1 of the puck?

2007-02-26 03:31:16 · 2 answers · asked by Alexander 6

Cannon is aimed right at the target located d = 1200m due north
from the cannon and fired. Initial speed of the ball v = 200m/s,
angle of inclination α = 15 degrees to the horizon. The ball misses
the target by r = 40m to due east, because gunmen did not
take into account the wind blowing from due west with the
speed u = 12 m/s.

How much time did the cannon ball spend in the air?

2007-02-26 03:31:16 · 4 answers · asked by Alexander 6

2007-02-26 03:26:22 · 3 answers · asked by bwad40 2

The price is not important at all...

2007-02-26 03:24:44 · 2 answers · asked by m_saamaan 1

The charge on a capacitor increases by 20 µC when the voltage across it increases from 80 V to 121 V. What is the capacitance of the capacitor?

2007-02-26 03:18:29 · 5 answers · asked by Anonymous

Hey, I hope you guys can help me with this, I've been spending a lot of time trying to figure this out: Why do Astronauts lei during Shuttel start?
Thanks in advance**

2007-02-26 02:56:13 · 3 answers · asked by **BABY** 2

Surface gravity is 8.9 m/s2

2007-02-26 02:54:28 · 9 answers · asked by Hilary J 1

2007-02-26 02:45:20 · 9 answers · asked by bihariraja 3

2007-02-26 02:37:13 · 3 answers · asked by Anonymous

I have to present something about snell's law but i don't exactly know what it is and what experiment i have to use.

2007-02-26 02:33:12 · 2 answers · asked by Anonymous