Physics - December 2006

I always see so many homework questions posted here. I could maybe understand asking for hints, but everyone just wants the exact answers. How do you expect to learn anything if you don't think for yourselves? Most of these questions only require a little tiny bit of effort to answer. In the long run you'll feel good about yourselves if you can do your own work.

2006-12-18 08:33:37 · 8 answers · asked by Link 5

Is deep water less dense than shallow water!???

2006-12-18 08:08:38 · 3 answers · asked by Amanda 2

I've built a trebuchet catapult and have been firing plastacine down the corridor in the name of scinece. I'd like to know any simplish parabolic motion equatins? Oh and they'de be even better if they didn't need a value for initial velocity because I cant figure out how to work that out either. Basically, I'd like to be able to predict where the projectile is going to land before it ever gets there and then to compare that with the actual experimental results that I have. Any help would be greatly appreciated. Thanks all from a very weary A2 level student.

2006-12-18 08:04:45 · 3 answers · asked by Moi? 3

If a pendulum clock keeps perfect time at the base of a mountain, will it also keep perfect time when moved to the top of a mountain?

I know that as the value of g is lowered, the period of a pendulum becomes longer, so is the value of g lower than 9.8 m/s^2 on top of a mountain?

2006-12-18 07:53:54 · 6 answers · asked by beautyqueenjustine 3

I actually mean all that H20 out there

2006-12-18 07:37:19 · 21 answers · asked by Krumah 1

2006-12-18 07:19:37 · 34 answers · asked by spidermike 2

how do you calculate the acceleration due to gravity on Saturn. i know the radius of Saturn is about 5.85 x 107 m and its mass is 5.68 x 1026 kg.

2006-12-18 07:15:26 · 5 answers · asked by gracelikerain 2

Does mathematics obey nature, or does nature obey mathematics?

This is like the chicken or the egg. I believe in God, so my opinion will be based on that. If you do not, that's ok and feel free to give your opinion, but please don't bash anyone for their belief.

It's like the question Einstein asked: Did God have a choice when he created the Universe?

I think the Universe started with blueprints. Those blueprints dictate how matter and energy would interact. Those blueprints are based on mathematics. So, it is my opinion that the math came first.

Thus, I believe nature obeys mathematics. For example, in Newton's Apparatus, there's only one way those balls will bounce given the initial position. If two balls are pulled back, two balls will fly up on the other side. They have no choice but to do that in order to conserve both energy and momentum.

Therefore, I believe God didn't have a choice. If He wanted a Universe like this, all of the laws had to be the way they are.

2006-12-18 06:31:27 · 6 answers · asked by phyziczteacher 3

The ice on a lake is 0.010m thick. The lake is circular, with a radius of 480m. Find the mass of the ice.

2006-12-18 05:58:08 · 12 answers · asked by candy 3

this is the full question: Accomplished silver workers in india can pound silver into incredibly thin sheets, as thin as 3.00x10^-7 m. Find the area of such a sheet that can be formed from 1.00 kg of silver.

So the density is 3.00x10^-7, and the mass is 1.00 kg right? how do i get the area??

2006-12-18 05:56:09 · 3 answers · asked by candy 3

2006-12-18 05:43:40 · 16 answers · asked by tomtopcat 2

2006-12-18 05:37:46 · 8 answers · asked by the winner 1

Is it a power function, or an exponential one? I know the right eqn is Y=A/X^2, but my data is showing exponential!

2006-12-18 05:29:22 · 3 answers · asked by Anonymous

2006-12-18 05:24:22 · 5 answers · asked by foggy 2

could someone write up/ give me a link that has all the formulas and definitions needed for the physics forces and motion test. I'm having trouble finding them.... (if it helps, my exam board is ocr)

2006-12-18 05:15:14 · 2 answers · asked by Ryujin 3

For each factor explain the effect on the braking distance

2006-12-18 05:11:20 · 7 answers · asked by Ryujin 3

This question is taken from the "Vector Analysis" of college physics

2006-12-18 05:07:15 · 2 answers · asked by Kunal 1

2006-12-18 04:37:22 · 7 answers · asked by Anonymous

2006-12-18 04:29:57 · 9 answers · asked by Raymond 2

then jumped through, would you come out on the other side of the Earth upside down to the ground or standing normal to the ground, and if you were upside down, how far would you keep falling?

2006-12-18 04:10:40 · 7 answers · asked by Anonymous

1. calculate the speed in m/s at which earth revolves about the sun. assume a circular orbit.

2.a dike in holland springs a leak through a hole of 1 cm^2 at a depth of 2 m below the water surface. how much force must the boy apply to the hole with his thumb to stop the leak. could he do it.

2006-12-18 03:26:22 · 5 answers · asked by Lady B 1

I am curious on what kind of material you could use in the wilderness to burn for a very long time.

2006-12-18 03:05:32 · 7 answers · asked by shorty G 1

1. an astronaut lands on a planet that has twice the diameter and mass of earth. how does the astronaut weight differ from that of earth.

2.if the earth were uniform density [same mass and volumes throughout ] what would the value of g be inside the earth at half its radius.

3.the mass of a certain neutron stae is 3.0 x 10^30 kg [1.5 solar masses] and its radius is 8000 m [8 km]. what is the acceleratiin of gravity at the surface of this burnt out condensed star

2006-12-18 02:43:24 · 7 answers · asked by Lady B 1

In "Surely You're Joking, Mr. Feynman!" by Richard Feynman. He said that he discovered a phenomenon where an object must make 2 rotations to complete a circle (4 pi). I would like to know some detail about the theory. It's because the discovery later helped feynman in winning the nobel prize

2006-12-18 02:40:45 · 4 answers · asked by Livar 2

a body of mass 0.51 Kg resting on a rough table(coefficient of friction=0.4) is conected by a light string over a smooth pully to a body of mass 0.42 Kg hanging freely.find the :
a)common accelertion of the two bodies

b) tension in the string
47 minutes ago - 3 days left to answer. - 1 answe

2006-12-18 02:39:20 · 5 answers · asked by reem h 2

I have a very strong magnet that I use to locate wall studs. It is flat and round with a hole in the middle. I can locate the nails the sheetrock with it. I have used it for some time now and it seems that it is as powerful as when I first got it. It got me to wondering if magnests lose any power over time or from attaching it to metal objects? Let me know what you think. Thank you

2006-12-18 02:15:45 · 4 answers · asked by Anonymous

i can use anything but glue

2006-12-18 02:01:16 · 11 answers · asked by apg2790 1

1. an astronaut lands on a planet that has twice the diameter and mass of earth. how does the astronaut weight differ from that of earth.

2.if the earth were uniform density [same mass and volumes throughout ] what would the value of g be inside the earth at half its radius.

3.the mass of a certain neutron stae is 3.0 x 10^30 kg [1.5 solar masses] and its radius is 8000 m [8 km]. what is the acceleratiin of gravity at the surface of this burnt out condensed star

2006-12-18 01:28:22 · 3 answers · asked by Lady B 1

i want to know abt the theory in a eazy-to-understand way as i am not a science student and i have difficulty in understanding scientific terms.

2006-12-18 00:53:18 · 4 answers · asked by aarthi c 1

I mean 0K means no molecular movement. Temperature increases as molecular movement increases and vice-versa. Since there is a maximun speed for movement (speed of light) shouldn't there be a maximum temperature? If yes what is it?

2006-12-18 00:18:04 · 13 answers · asked by Dimitrios 2