Physics - June 2007

2007-06-02 05:48:16 · 14 answers · asked by Anonymous

2007-06-02 05:25:29 · 11 answers · asked by kittyCat 3

In some Physics questions, whenever we get results from the calculator denoting the arctan, we often have to either subtract or add 180 or 90 degrees from the result.

HOW THEN, CAN I KNOW WHEN TO ADD OR SUBTRACT 180 or 90 DEGREES FROM THE CALCULATOR's RESULT?

Please answer this question. THere are many of us depending on this question. Thanks a lot!

Ten points goes to the best answerer.

2007-06-02 04:54:04 · 6 answers · asked by Anonymous

2007-06-02 04:48:41 · 7 answers · asked by Michael A 1

2007-06-02 03:38:42 · 8 answers · asked by lykh55 1

Does only nuclear bomb Emmet radiation gamma can a simple bomb like an airplane bomb Emmet radiation gamma ?

2007-06-02 03:36:24 · 2 answers · asked by ? 2

I bought this laser and it says 650 nm laser diode wavelength

2007-06-02 03:32:33 · 9 answers · asked by DaneMaricich 3

2007-06-02 03:17:28 · 8 answers · asked by Anonymous

i dont want the equation but i want the derivation.is there any einstein to derive it

2007-06-02 03:09:57 · 1 answers · asked by Anonymous

What do Physics say?

2007-06-02 02:57:35 · 13 answers · asked by Archangelm 1

can contact me if any one wanna discuss....!!!!

2007-06-02 02:36:36 · 5 answers · asked by Anonymous

A volleyball is spiked so that it has an initial velocity of 15 m/s directed downward at an angle of 61° below the horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball?

Please show your work, having trouble figuring out how you can find the lengths of the triangle.

2007-06-02 02:34:12 · 3 answers · asked by wildcherrychica1 2

I'm thinking about getting a guitar from burled Bubinga wood and now I'm starting to wonder if the burl throws the tone.

2007-06-02 02:02:59 · 2 answers · asked by kyle l 2

When a pool/snooker ball strikes another ball full on what determines how much of the momentum of the cue ball is passed to the object ball as acceleration and how much is retained as momentum in the cue ball following through?

My question is more to do with contact and propulsion than the actual spin on the balls.

I assume that if the object ball isn't hit full on - flicked at an angle - the comparatively lesser acceleration passed on will be proportional to the angle from the direction of the cue ball.

2007-06-02 01:48:27 · 6 answers · asked by Andrew H 2

Has any one seen the show on the discovery chanel pertaining to stephen hawking and the idea that black holes dont destroy matter but really just hold matter inside?

if this is true how could we obtain this information and why is stored in the black hole originaly.

also in the show is stated that we are only one of many different multiversis and dimensions any thoughts of this...

sorry for the spelling errors.

2007-06-02 00:47:37 · 4 answers · asked by Anonymous

I am asking this because if you go anywhere on the earth (even the bottom) you'll be standing right side up. So lets say hypothetically you dug a hole from north pole to south pole and jumped in the hole starting at the north pole. When you are falling in the hole, would you end up coming out of the hole feet first? would you fly out of the hole because of gravity from when you first jumped?
When you answer the question, forget about the HOT core of the earth and the size of the world. im just talkin about the physics

2007-06-01 22:50:23 · 10 answers · asked by hannah l 2

2007-06-01 21:48:25 · 15 answers · asked by Anonymous

2007-06-01 21:33:54 · 7 answers · asked by mahrezvan 1

2007-06-01 21:30:24 · 4 answers · asked by Grinning Football plinny younger 7

http://72.14.235.104/search?q=cache:mqrk...

2007-06-01 21:23:20 · 2 answers · asked by Heights! 2

the earth is one whole atom, made out of million upon millions of tiny atoms. the earth is an atom which makes up another universe.
please anyone add to this, put your thoughts into this etc, thanks.

2007-06-01 21:17:35 · 7 answers · asked by kaf. 1

I am doing an assignment on golf biomechanics and i was just wondering where the centre of mass is, not centre of gravity, the centre of MASS???

2007-06-01 21:16:20 · 4 answers · asked by Chikky Girl 1

Hello. =) I'm doing a study guide that's just for studying purposes. My teacher doesn't give me answers to this, it isn't graded, and it's used only for me and for notes.

The 'question' (it's not really a question, hehe) that I don't fully understand is:

"Explain how fusion can be an energy source when it requires an input of energy to push the nuclei close enough to fuse."

I don't know this answer to this, and these won't be very good notes if I don't know whether or not they are correct. Please help. :(






Thank you for your time! <:)

2007-06-01 21:12:49 · 7 answers · asked by Anonymous

If atoms have an electromagnetic charge (eg protons and electrons and perhaps even neutrons have some form of it that is as yet unmeasurable) is gravity caused by electromagnetism? Or perhaps electromagnetism as me may not now know it? Gravity is typically linked with mass; more mass, more gravity. What causes the gravity in the first place though? If the more mass something has the more gravity it has, then isn't that a buildup of all of the electromagnetically charged atoms in that thing? If not, what evidence is against this? GIVE EVIDENCE!

2007-06-01 19:45:04 · 7 answers · asked by SubOne 3

If atoms have an electromagnetic charge (eg protons and electrons) is gravity caused by electromagnetism? Or perhaps electromagnetism as me may not now know it? Gravity is typically linked with mass; more mass, more gravity. What causes the gravity in the first place though? If the more mass something has the more gravity it has, then isn't that a buildup of all of the electromagnetically charged atoms in that thing? If not, what evidence is against this?

2007-06-01 19:18:40 · 7 answers · asked by SubOne 3

2007-06-01 19:04:36 · 5 answers · asked by computerbum 2

an ocean liner is iling across the atlantic ocean. late one night during the journey, she strikes an iceberg. the leak created is taking in water at a rate of 3.25 tons every 12 minutes. the ship is 40 miles from the nearest land. the captain knows that the ship will sink if it takes in 68 tons of water. the pumps of the ship can throw out 12 tons of water every hour. unfortunetly, with this damage the ship can only travel at the rate of 2.25 miles per hour. the captain radios search and rescue personnel that the ship will not likely make it to shore before it sinks. if the captain is correct, how far from shore will the ship sink?

2007-06-01 19:03:25 · 1 answers · asked by Anonymous

I think that a very cool way to explore the phenomena associated with the properties of magnetic fields is to utilize a gel that can be 'impregnated' by the same techniques that magnetic tape utilizes. Think about it, picture it, and then if you have any ideas about such a feat, let me know.
These are ideas that came to me about 8-10 years ago when digital was basically leaving analog in the dust. I'm a musician and I know from an artistic standpoint, in anything, that there is a huge sacrifice going on with the world of digital. If you don't see it you are obviously not aware of how absolutely amazing the wonders of electronics can be. Has been.
While I preeched at my younger brother about sine waves he used to say things like, " Man, you don't see where it's headed do you?. When the sampling rate gets to X point, you wan't be able to hear any difference..."
Oh brother, how wrong you are! Digital has no phenomenas. I loved my first Marshall amp melting down..THAT'S ANALOG

2007-06-01 18:53:46 · 2 answers · asked by paulj0557-vacuum cleaner expert 3

THE FLUORESCENT SHOULD BE NATURAL WHITE 1000LUX AT 2.5 FEET DISTANCE, PLEASE HELP ME WHICH MAKR/MODEL IS EQUAL OR NEARER TO THIS SPEC. MOST URGENT PLEASE.....

2007-06-01 18:40:24 · 3 answers · asked by SARAVANA Ku 1

2007-06-01 18:23:26 · 9 answers · asked by paulj0557-vacuum cleaner expert 3