Physics - June 2007

can anyone give me an example of an investigatory in physics?im in 4th year high school........thanks.......

2007-06-15 16:35:31 · 5 answers · asked by tara jcrest 6

The current flowing through the 8.45 ohms resistor is 1.22 A, given the resistors in the drawing below:
How much current flows throughout the entire battery?

THe circuit is: SERIES from unknown voltage of battery to 15, 12.5, 8, 45, and 4.11 ohms. Between 12.5 to 8.45, the circuit splits into two further resistors, 13.8 and 17.2, then joins the circuit again just aftr 4.11 ohms.

2007-06-15 16:31:27 · 3 answers · asked by plca 1

2007-06-15 16:19:11 · 14 answers · asked by Anonymous

Or is it because our instruments can't read faster than the speed of light (when measuring on the quantum level)?

I'm having trouble with quantum mechanics.

2007-06-15 14:59:48 · 10 answers · asked by Anonymous

2007-06-15 14:43:15 · 6 answers · asked by bonacker 4

PLEASE DO NOT SAY WE WOULD BE FLOATING OFF IN OUTER SPACE IF THERE WAS NO GRAVITY!

2007-06-15 14:41:29 · 7 answers · asked by Anonymous

2007-06-15 14:11:29 · 3 answers · asked by spooky 2

Basically what is the strongest material in terms of tensile strength and in general being resistant to forces like extreme pressure such as in an explosion or heat?

2007-06-15 13:30:23 · 4 answers · asked by Anonymous

I realize this is a tough question, but it just doesn't make any sense to me why this would happen. I've also heard that people have sent particles faster than the speed of light but if that happened then the mass of those particles would have approached infinity for a moment which mean they would have almost limitles gravitational field and all heck would break loose. Does anybody else have a problem with this? :)

2007-06-15 13:18:53 · 6 answers · asked by juice33 1

2007-06-15 13:11:19 · 6 answers · asked by Peter D 2

If I have a ring magnet with a hole in the center (donut), if I put a copper pipe through the center, will the magnet cling up against the copper?... or will it repel it evenly on all sides so that it doesnt touch the copper at all?...

I'm trying to demonstrate levitation and I want as little drag as possible. I want to put one magnet at the bottom then put a magnet on top repelling it so that it will hover above the magnet on the bottom. Then stick a wooden dowel through the center so the top magnet doesn't fly off. But the top magnet will be rubbing up against the wooden dowel when I spin it.

2007-06-15 13:10:41 · 2 answers · asked by Hindu Guy 2

What do they try and detect? Do they send out a steady stream and look for changes in the amplitude or in the frequency? Or do they send out pulses and look for changes in response time? How sensitive are they? (how big of a change does it take in whatever it's sensing to trigger it?

2007-06-15 12:48:01 · 6 answers · asked by Ace 1

PLease Help

And if you have any other information on creating PSI can you please tell me

Thanks

2007-06-15 12:36:56 · 3 answers · asked by Daniel J 1

2007-06-15 12:28:20 · 7 answers · asked by therefore76 1

I need help

2007-06-15 12:22:56 · 3 answers · asked by Daniel J 1

What if our perception of reality and time is really only our own interpretation at our scale and we are really but a small short lived atom in someone else's Universe and reality and that we may one day just pop and not exist anymore.

I mean how do we know, we can't see beyond the boundaries of our own Universe? What is huge and unexplainable to us might be infinitely tiny and unnoticed in a parallel World or Universe.

Does quantum theory ever deal with this issue?

I find it fascinating and exciting to think of the possibilities!

2007-06-15 11:46:32 · 9 answers · asked by scottanthonydavis 4

Could a way be devised that would allow an instrument of some kind to tune into a distant mass energy source such as black hole or large solar bodies and effectively harness their energy or graviton pull to accelerate through space as a type of travel? A black hole must have a massive source of drawing energy due to its compact mass, has anyone ever thought of tuning in to that frequency output or draw and use that as a force of energy. If we could focus in on the center and draw ourselves to it by aligning some kind of frequency wave, couldn’t that act as a never ending accelerator – or at least until you made it close to the Black Hole, you would have to cut the line well before that.

In a way it would be like the folded sheet of paper theory where you would reach out to a source across space and draw that energy to you as an ever increasing pull.

I am no physicist obviously, so don't laugh - I just keep getting these types of ideas. Thanks

2007-06-15 11:25:10 · 1 answers · asked by scottanthonydavis 4

I have a physics question:

Car A is traveling 50 miles an hour east.
Car B is traveling 51 miles an hour east.
Car B hits Car A from behind.

Would the magnitude of the impact be the same if Car B were going 1 mile an hour and hit Car A going at 0 miles an hour?

2007-06-15 11:23:38 · 3 answers · asked by darkmanx1209 2

So radiowaves, x-rays, gammarays, visible light, microwaves, etc. are all just 'light' at different frequencies. Gamma rays are on one end of the spectrum with the highest frequency. I guess this would be the limit on how frequent the wavelengths can travel and this results in Gamma rays. But on the other end, we have long radio waves with the lowest frequency of light waves. But is there a limit to how long a light wave can be? That is, is there a limit to how less frequent a wave can be? If so what would that look like, and how would we detect it?

2007-06-15 11:16:20 · 9 answers · asked by Anonymous

Just a question that my dad and i were trying to work out. So it would be nice if someone could help us answer it.

Thanks!

2007-06-15 11:11:01 · 8 answers · asked by Anonymous

This question is regarding Knight Rider type shows when a car drives up a moving open trailer. Once the moving car hits the ramp of the trailer wont it surge forward because the ramp is not moving like the ground was moving underneath the tires?

2007-06-15 10:57:53 · 4 answers · asked by forrstarr 1

Why do electrons in an atom absorb energy in quanta of certain definite amounts only?

2007-06-15 10:52:53 · 2 answers · asked by Anonymous

There has to be some fundamental explanation as to why it is, and not some other configuration. Can anyone fill me in?

2007-06-15 10:02:04 · 11 answers · asked by Anonymous

I am stuck on this problem and would be really greatful with any help on it.

A straight wire of mass 10.3 grams and length 5 cm is suspended from two identical springs that form a closed circuit (see figure below). The springs stretch a distance of 0.48 cm under the weight of the wire. The circuit has a total resistance of 10 Ω. When a magnetic field directed out of the page (indicated by the dots in the figure) is turned on, the springs are observed to stretch an additional 0.30 cm. What is the strength of the magnetic field? (The upper portion of the circuit is fixed.)

http://www.webassign.net/sercp/p19-66.gif

2007-06-15 08:40:57 · 3 answers · asked by Anonymous

The best leaper in the animal kingdom is the puma, which can jump to a height of 11.1ft when leaving the ground at an angle of 42degrees. With what speed, in SI units, must the animal leave the ground to leave the ground to reach that height?

Thanks sooo much

2007-06-15 08:33:38 · 3 answers · asked by hottie 3

This was one of my GCSE Physics questions, and i wasn't sure of the answer. I would be extremely grateful if someone can provide the answer. Thank you

2007-06-15 07:33:27 · 8 answers · asked by Anonymous

Is this correct? I have a hard time understanding the relationship between matter, mass, and energy. Any help will be much appreciated!

2007-06-15 07:16:26 · 12 answers · asked by lirael1019 1

Does anybody know what the formula is to convert 14,520lbs of a substance over to gallons? The specific gravity of the substance is .94.

2007-06-15 07:02:18 · 3 answers · asked by DJ 1

If matter is anything that has mass, and matter has energy, does that mean mass is a type of energy?

2007-06-15 06:49:40 · 6 answers · asked by lirael1019 1

If mass and energy can be changed from one to the other, what guarantees that the total amount of matter in the universe remains constant, or that the total amount of energy remains constant?

2007-06-15 06:30:03 · 4 answers · asked by lirael1019 1