Physics - April 2007

2007-04-08 20:16:59 · 8 answers · asked by SonInspired 2

2007-04-08 19:14:24 · 3 answers · asked by Anonymous

2007-04-08 17:26:39 · 6 answers · asked by deepak57 7

Wouldn't the radiation and waves from microwaves be dangerous? If there was a leak, could a microwave do damage if one was in constant exposure to the radiation? Just wondering, kind of argued w/ my dad about this.

2007-04-08 16:08:25 · 8 answers · asked by The Ghetto David Hume 3

A recreational (open) hot air balloon (i.e., Pinside is approximately Poutside) has a volume of 2339 m3 when fully inflated. The total weight of the balloon, basket, ballast and pilot is 1656.2 N (373 lbs). By how much must the density of the air in the balloon be smaller than that of the surrounding atmosphere in order to keep the balloon floating level near the ground?

2007-04-08 15:26:30 · 2 answers · asked by bud 1

The ratio of the magnitude of the charge of a proton compared to the magnitude of the charge on an electron is
a) 1:1
b) 1:3
c) 1:1.63 E18
d) 1:1.67 E-27
e) 1:9.11 E-31

2007-04-08 15:12:00 · 3 answers · asked by Nanda 2

2007-04-08 15:01:19 · 6 answers · asked by curio 1

And, if anyone knows where this question is from, virtual cookies.

2007-04-08 14:58:23 · 8 answers · asked by tye_dyedfan 3

does demonstrating static electricity, mean i am demonstrating electrical energy?

2007-04-08 14:49:37 · 5 answers · asked by iNeedhelp 4

The velocity of sound waves in air at sea level is 343 m/s. Find the wavelength in air of a sound wave whose frequency is 440 Hz.

2007-04-08 12:54:52 · 3 answers · asked by Anonymous

2007-04-08 11:41:36 · 8 answers · asked by ben8james 2

2007-04-08 11:36:46 · 20 answers · asked by gnrdan 2

I am required to discuss thermal flow in my project, which is to make a solar oven. how is thermal evergy relevant to solar oven. i am making the oven from the pizza box.

2007-04-08 11:26:17 · 1 answers · asked by gogogaga 2

The lower frequency limit for human hearing is usually considered to be 20.0 Hz. What is the corresponding wavelength for this frequency if the air temperature is 20.0 degrees C?

Please help I don't know how to even set up this problem

2007-04-08 11:08:55 · 4 answers · asked by Ashlee 3

Please help out with this Rotational Dynamics prob...???
A rotational axis is directed perpendicular to the plane of a square. Two forces F1 and F2, (a) are applied to diagonally opposite corners, (b) and act along the sides of the square. In each case the net torque produced by the forces is zero. The square is one here meter on a side, and the magnitude of F2 is three times that of F1. Find the distances a and b that locate the axis.

There are two squares

in square (a) F1(leftside of box) is going right and F2(right side of box) is going downward.
in square (b) F1(left side of box) is going downward and F2(right side of box) is going left.

Please help! thX

2007-04-08 10:27:33 · 2 answers · asked by CJ 1

i am building a model of Sulfur for my science class. Can anyone give a good website to visit that will tell me how to build one. also can anyone tell me at which supply stores are good to get the materials to build the atom. Thanks

2007-04-08 10:20:04 · 1 answers · asked by Anonymous

2007-04-08 09:57:08 · 1 answers · asked by Anonymous

2007-04-08 09:48:44 · 6 answers · asked by HT 2

Formula for Kinetic Energy?

2007-04-08 09:11:20 · 5 answers · asked by jedilounge1 2

i need details about "to measure thermal conductivity" using 'guarded hot plate method'

2007-04-08 08:19:53 · 2 answers · asked by xyz 1

Lets assume that all laws of physics and chem work equally good in reverse too.. do you think it would be possible or do you see any bottlenecks?

2007-04-08 07:55:23 · 9 answers · asked by Anonymous

2007-04-08 07:08:53 · 4 answers · asked by Ashish S 1

Would it be smooth? rocky like the moon? Could you see the Nucleus in the distance? How fast would you be going?

2007-04-08 06:35:38 · 8 answers · asked by Mr Scientist 2

is there such a thing at all?

2007-04-08 06:26:10 · 3 answers · asked by Anonymous

there is :liquid,gas,solid,plasma,and ?

2007-04-08 06:19:36 · 3 answers · asked by greengangsta 1

If you weren't amazing at Maths but loved Physics, can you still do well in say an Astrophysics or Physics with Astronomy Degree?

2007-04-08 05:43:47 · 13 answers · asked by ge100g 1

Tigers rule!

E=mc2?

2007-04-08 05:32:54 · 6 answers · asked by rocky balboa 1

2007-04-08 04:59:22 · 3 answers · asked by Anonymous

2007-04-08 04:42:20 · 6 answers · asked by 8 3

2007-04-08 04:35:36 · 4 answers · asked by Anonymous