Physics - January 2007

Could some one explain how the chair suspension work? And i can immitate this using household chairs and board? Or do you buy the chair suspension set, whats so different about the chair suspension set?

2007-01-19 04:17:27 · 2 answers · asked by 56 1

A piece of ice of mass 0.0380 kg at an initial temperature of -13.0o is placed in an aluminum cup of mass 0.0300 kg containing 0.100 kg of water at 35.0o C.

2007-01-19 04:16:58 · 1 answers · asked by bippidibopiddi 2

According to Special Relativity, I should be able to travel to the Andromeda galaxy (2 million light years away) and then return to earth over a period of time that would seem like just a few years to me. But upon my return to earth, I will find that that earth has aged over 4 million years. Now suppose that I have a really, really powerful telescope and I am able to constantly view a large digital clock on the earth's surface that has been set up for my viewing pleasure. My plan is to spend my entire space voyage watching this earth-based clock. If it were not for acceleration, the clock should appear to me to be very slow – at near light speed, the earth-clock should almost seem to be stopped. This is because according to Special Relativity, the earth would appear to be traveling near the speed of light relative to me, so I would see the earth clock slow down. But since I am accelerating, we have to include General Relativity. So my question is…

2007-01-19 04:08:02 · 8 answers · asked by eroticohio 5

2007-01-19 04:07:04 · 13 answers · asked by dvdai14 2

symbol(integral)E.dl=0

2007-01-19 03:57:00 · 1 answers · asked by Anonymous

what is force on the particle?plz explane answer?

2007-01-19 03:52:03 · 1 answers · asked by Anonymous

I know it has to do with the strange and charmed quarks, but I don't know exactly.

2007-01-19 03:27:56 · 4 answers · asked by Anonymous

What would an uninverted one do.

2007-01-19 03:04:17 · 7 answers · asked by Rip 5

I've been handed a physics problem and I need to find some resource to either convert or locate the force applied by a vehicles (large automotive) brakes.

2007-01-19 02:54:35 · 5 answers · asked by michael f 5

How would I go about writing an equation giving its speed after a time T in terms of its mass m and charge q?

2007-01-19 02:54:11 · 4 answers · asked by e=mc^2 1

A 55 N force pulls an 8.0 kg block up a ramp at a constant speed. The length from position 2 to 1 is 0.159 m and height is 9.5 cm. I've determined the work required to life the block up the ramp (8.7 J), vertically (7.4 J) and the potential energy (7.4 J) now it asks.... what is the work done against friction then pulling the block up the ramp and what is the force of friction acting on the block. I need help with these to questions, mainly knowing what formulas I need to use I can plug in the numbers myself.

2007-01-19 02:38:29 · 3 answers · asked by Anonymous

2007-01-19 02:02:54 · 9 answers · asked by BOB 1

2007-01-19 01:21:58 · 7 answers · asked by Anonymous

You know when someone has a plan to blow up gas barrels s/he shoots it and it explodes as they had planned.

But when they want to trigger an explosion later they shoot it same as before the flammable liquid comes spilling out and they later flick a match or cigarette but on the ground and sit back and watch it explodes where in real life like when it was tested in mythbusters it wouldnt work it

I know thats just how it works in Hollywood land its just entertainment not to be philisophically thought about or justified.

... but things like this leave me confused to how these situations would pan out in real life...like if I were to shoot a petrol truck right in the tank would it explode or begin to spill.

What other loop holes like this have you noticed?
Should they be remedied so they're hyper realistic like the Bourne Identity (where he does shoot a gas tank and it does explodes so I do trust the filmakers that this would really happen because its set in a realistic worl

2007-01-19 01:02:33 · 6 answers · asked by Dude 2

My water service was interrupted the other morning, and I was thirsty, so I took a glass, filled it with ice cubes, and put it in the microwave. I set it for 1 min., it did nothing. I set it for 2 min., it did nothing. What I couldn't understand is that while you could put a cup of water or coffee and set it for 1 min. and have it be boiling hot (even the cup is too hot to touch), the glass of ice (including the glass) is still cold to the touch. I know that if I set it for 4-5 min., it'd melt the ice; I don't understand how it heated liquid so quickly, while not affecting the ice as quickly. I hope that this explains it better. Try it with a glass of ice and check your results.

2007-01-19 00:45:02 · 7 answers · asked by b_masters1 3

I was told years ago that it was better to leave a neon light on over lunchtime than to switch it off since switching on and off reduced the tube's lifetime more than the cost of the electricity. Is this true?

2007-01-19 00:44:06 · 11 answers · asked by Yasmin 1

2007-01-19 00:22:21 · 10 answers · asked by vinni 2

challenge problem:
a raindrop falls from acloud 100m above the ground. neglecting air resistance, what is the speed of the raindrop when it hits the ground?



please with solutions...i need this to pass in my physics subject

2007-01-19 00:16:03 · 8 answers · asked by antoinekingx 1

2007-01-19 00:04:43 · 6 answers · asked by Denielle B 1

2007-01-18 23:45:25 · 23 answers · asked by alan l 1

2007-01-18 23:43:00 · 3 answers · asked by BTH L 2

2007-01-18 22:56:45 · 6 answers · asked by Anonymous

Would they die even if they land on grass?

2007-01-18 22:39:58 · 11 answers · asked by Anonymous

I have a Babyliss and a Parlux hairdryer and they both flash blue when I turn the switches on. Is it normal? I was told by a friend that it is ok because electrical switches spark on the contacts on things which draw alot of current. Is this true? Are my hairdryers safe?

2007-01-18 22:31:48 · 11 answers · asked by Anonymous

As you slowly move away from a mirror can you see more of yourself - or do you see the same amount. Please explain.

2007-01-18 22:10:07 · 2 answers · asked by Ekpyrotic 2

On the bottle of Camp Coffee the label showed an Indian servant carrying a tray on which was a bottle of Camp Coffee with a label which showed an Indian servant carrying a tray on which was a bottle of Camp Coffee with a label which showed an Indian servant carrying a tray on which was a bottle of Camp Coffee with a label which showed an Indian servant carrying a tray on which was a bottle of Camp Coffee with a label which showed an Indian servant carrying a tray on which was a bottle of Camp Coffee ad nauseam. What is this optical effect called?

2007-01-18 22:03:28 · 7 answers · asked by BARROWMAN 6

2007-01-18 21:45:17 · 4 answers · asked by j0mar a 1

An electromagnet capable of magnetizing a metal ball (small, and light) with a distance of 1 inch between them and a pipe dividing them...will that be possible by just using 1.5v batteries?

are there other ways aside from making more coil turns?

2007-01-18 21:24:36 · 5 answers · asked by Ken 3

A magic trick, device or gadget that can demonstrate a physics principle in a fun way.

2007-01-18 20:19:06 · 4 answers · asked by Timothy 2

2007-01-18 19:45:02 · 16 answers · asked by Mandar 2