Physics - July 2007

1) The measurments for the circumference of a circle is 9.81 cm and its diameter is 3.32 cm
2) The measurements of the circumeference of the same circle that you measured the second time are 10 inches for the circumference and 3 inches for the diameter

2007-07-24 14:07:43 · 2 answers · asked by tata 2

energy can be released from something such as wood,coal,gas ect. generated in many ways or can be seen or felt in forces of nature. the question is could you have energy as a separate entity that could be held or observed

2007-07-24 14:00:16 · 9 answers · asked by greg b 1

2007-07-24 12:48:38 · 4 answers · asked by J M Davis 2

2007-07-24 10:33:22 · 12 answers · asked by Anonymous

2007-07-24 09:50:41 · 4 answers · asked by chicago_gurl2016 1

I must know !!

2007-07-24 09:48:00 · 4 answers · asked by Anonymous

Why are there almost no waves in the Mediterranean sea (Greece) during the night while there are quite big waves during the day?? Any suggestions?

2007-07-24 09:08:06 · 5 answers · asked by cuffmugger 2

A steel beam is placed vertically in the basement of a building to keep the floor above from sagging. The load on the beam is 5.8 × 104 N, the length of the beam is 2.8 m, and the cross-sectional area of the beam is 7 × 10-3 m2. Find the vertical compression of the beam.

2007-07-24 07:43:56 · 2 answers · asked by Anonymous

If the atmosphere were isothermal the pressure at a given height would vary as follows:

P = P' e^Mgh/RT

where P' = 1 ATM, M is the average molar mass (0.80*28 + 0.20*32), g = 9.81m/s^2, R = 0.08206 l atm/mole degree K,
T = degree K

Given 100,000 L He @ 25*C & 1 ATM in a rigid ballon carrying a 100 kg load how high would it rise till it reaches equilibrium?
I've tried this one for 3 weeks and I'm getting nowhere.

2007-07-24 07:43:22 · 4 answers · asked by jbowers9 1

2007-07-24 06:52:31 · 4 answers · asked by john constantine 2

An atom is mostly ________???

A _______is emmitted when an electron goes from a higher energy state to a lower energy state???

_________has 8 protons, 8 electrons, and 8 neutrons???

2007-07-24 06:50:33 · 13 answers · asked by justask23 5

Why if you vaccum seal a glass tube does it not implode because i cant see how nothing can be in something . Answers will be appreciated


-baldy.waldy

2007-07-24 06:43:37 · 4 answers · asked by Anonymous

that perticular material even can not pass through the skin.

2007-07-24 06:19:50 · 2 answers · asked by suanjali c 1

If we take two plates with different areas, one plate larger than other then what will happen? It should still store charge when connected to a battery. But how will we calculate the capacitance theoritically without experiments?


And if we take two plates of same area, and tilt one of them , then can we take the area components parallel and calculate the capacitance?

2007-07-24 05:34:26 · 2 answers · asked by astrokid 4

2007-07-24 05:23:55 · 7 answers · asked by caley 2

A transport plane takes off from a level runway with 2 gliders in tow. (3 planes, one behind the other). The mass of ea. glider in 765 Kg and the total resistance on EACH glider is 2543 N. While they are accelerating for takeoff, the tension in the towrope between the transport and first glider is 9876 N. What is the tension in the rope between the two gliders?

2007-07-24 03:57:33 · 2 answers · asked by geezuskreyest 5

A thermometer of mass 31.0g and specific heat 620 J/kg C degrees is initially at a temperature of 12.0 degrees C. If the thermometer is then immersed in a sample of water of mass 119g and the combination reaches a final temperature of 41.5 degrees C, what was the initial temperature of the water?

2007-07-24 03:52:38 · 4 answers · asked by night_gazer86 1

Why are Satellites launched up at Florida and North Queensland? I know this has something to do with the physics of satellites, just can't remember what.

Can anyone help?

2007-07-24 03:41:56 · 9 answers · asked by Anonymous

Examples of Newton's second law of motion

Minimum of TWO(2)

2007-07-24 02:36:41 · 3 answers · asked by sruthi s 3

2007-07-24 02:17:10 · 7 answers · asked by regine t 1

Would the downforce be that of a nuclear bomb?

2007-07-24 01:13:25 · 13 answers · asked by Anonymous

How does gravity cause a curve in spacetime?

What is the reasoning?

And how does curvature of spacetime occur?

2007-07-23 23:35:37 · 7 answers · asked by Anonymous

If an object is moving at 4.3m/s^2, how far will it travel in 10sec?

The answer is 215m. I want to know the steps to this solution please.

2007-07-23 18:02:43 · 4 answers · asked by Cheat Sum 4

And don't just say that there aren't other universes. We're going with there ARE parallel/other universes.

2007-07-23 17:22:33 · 6 answers · asked by Anonymous

Why does fire stay upright always, and never downward?

2007-07-23 16:47:44 · 4 answers · asked by ? 1

A jogger with a constant velocity of 4.0 meters/second runs by a stationary dog. After 1 second, the dog decides to chase the jogger. The dog accelerate at 1.5m/s².

(a)How long does it take the dog to catch the jogger?
(b) How far away from the spot where the dog was sitting has the jogger gone when she is caught by the dog?
Note: assume the jogger has a constant velocity.

2007-07-23 16:33:38 · 2 answers · asked by Anonymous

A rock is thrown straight up with an initial speed of 8.00 m/s from the roof of a building 12.0m above the ground. For the motion from the roof to the ground, what are the magnitude and the direction of:

(a) the average velocity of the rock?
(b) the average acceleration of the rock?

2007-07-23 16:09:11 · 4 answers · asked by Imran 1

As a neutron contains: two d-1/3 and one u+2/3 quarks & a proton contains two u+2/3 and one d-1/3 quarks, what do the signs stand for? Is it positive and negative charge or mass?

2007-07-23 15:14:35 · 2 answers · asked by Larry K 1

There you are in space....traveling at the light...you turn your headlights on... do they work? Project light outward?

2007-07-23 14:30:04 · 10 answers · asked by Rodger M 1

I've always marvelled at the whole concept of light as a particle and simultaneously as a wave. I understand the basics of E=MC2, but wondering if light is a particle, how much mass does it have? Is the mass dependent on how excited the photon is? I guess I'm kind of answering my own question a bit. Well, maybe not...

2007-07-23 14:19:02 · 5 answers · asked by Unanswerable conundrum 1