Physics - December 2006

Can someone please explain this , as it is related to refraction phenomenon .

2006-12-05 04:27:10 · 2 answers · asked by Sidra T 3

plz respond. i'll send u my question via mail/msg.just open ur mail option

2006-12-05 03:57:54 · 4 answers · asked by Anonymous

Gravity is a known fact, just like atoms in chemistry and DNA in biology. Unlike atoms or DNA, gravity has no known source. What causes two objects to attract each other?

2006-12-05 03:52:54 · 6 answers · asked by mikzilla0 2

I beat water with an egg beater for 10 mins and the tempeture went from 24 degress celcuis to 28. Why did this happen ?

2006-12-05 03:40:24 · 6 answers · asked by Anonymous

Hi, i'm currently looking for theories and research on an aspect of elementary particles proposed under physics.

Is there any theories on a proposed "time" particle that propels things through time the same way the graviton can be attributed to the force of gravity? Any papers on this? anyone know of any theories about this?

2006-12-05 03:22:27 · 4 answers · asked by jleslie4585 5

2006-12-05 02:43:22 · 5 answers · asked by Anonymous

Both are concept of magnets, why is the attraction different ? can we simulate earth kind of attraction in the lab which mearly attracts every thing towards it ?

2006-12-05 02:43:01 · 4 answers · asked by samuels1984 1

2006-12-05 02:37:27 · 4 answers · asked by hmlv 1

2006-12-05 02:32:40 · 2 answers · asked by Dee 1

I am studying for my exams and this is a homework problem in the book. My instuctor gave us the numerical answers for it, but I am not sure how to get them.

A radar transmitter used to measure the speed of pictched baseballs emits pulses of .02 m wavelength that are 2.5 x 10^-7 seconds in duration.

What is the length of the wave packet produced?
[answer 74.6 m]

To what frequency should the receiver be tuned?
[answer 1.5 x 10^10 Hz]

Thanks.

2006-12-05 02:30:42 · 2 answers · asked by saywhat198 1

2006-12-05 02:27:00 · 8 answers · asked by christine j 1

In a simple series circuit containing a battery and a lamp, a charge of 29 C passes a point in 38 seconds. How many electrons flow through the lamp in 18 seconds?

Give your answer to 2 decimal places.

[assume the battery has zero internal resistance and the charge carried by an electron is 1.6 x 10-19 C]

2006-12-05 02:17:57 · 3 answers · asked by wot_up_peeps2000 2

2006-12-05 02:00:59 · 9 answers · asked by Anonymous

2006-12-05 01:52:38 · 8 answers · asked by qwine2000 5

2006-12-05 01:45:05 · 16 answers · asked by mark_gg_daniels 4

lets say object A is moving in a straight line, and you throw another object (B) towards it from a 90 degree angle. how much force is needed to "curve" the path of the object A 45 degrees from the straight line? i realize that F=mass*velocity, but i assume i need some trig function to correct the path of object A?

2006-12-05 01:42:40 · 4 answers · asked by destroyer of worlds 1

2006-12-05 01:17:19 · 3 answers · asked by bihariraja 3

If you could never change anything or influence the Past/Future in case it disastrously effects your life, whats the point? Plus, if you're travelling to the future, how can you be sure not to end up inside a brick wall, or drowning in an ocean or the middle of a future highway you could never forsee?

2006-12-05 00:45:22 · 12 answers · asked by Psichore 1

you are told that the volume of a sphere is given by v = 4 pie d^3/3, where v is the volume and d is the diameter of the sphere. Is this equation dimensionally correct?

2006-12-05 00:41:59 · 15 answers · asked by Travis M 2

2006-12-05 00:25:24 · 4 answers · asked by danmalang 1

it is really important, i want quality tips

2006-12-05 00:22:43 · 6 answers · asked by xyz 1

just for knowledge sake

2006-12-05 00:19:36 · 6 answers · asked by xyz 1

2006-12-05 00:02:20 · 7 answers · asked by Alexander_Brave_Heart 1

2006-12-04 23:51:21 · 4 answers · asked by get_xed 1

2006-12-04 23:36:31 · 5 answers · asked by Anonymous

2006-12-04 23:20:18 · 6 answers · asked by elliottsadler06 4

2006-12-04 22:48:29 · 7 answers · asked by sudhan 2

2006-12-04 22:46:38 · 23 answers · asked by sportative 1

in 1610, Galileo discovered four of the 16 moons in Jupiter. the largest of which is Ganemede. this Juvian moon revolves around the planet on 7.16 days in a nearly circular orbit whose radius is about 1.07 x 10^6 km, using this data, find the mass of Jupiter? can u please explain why your answer is that way. thanks

2006-12-04 22:24:14 · 2 answers · asked by Anonymous

2006-12-04 20:46:19 · 5 answers · asked by Kelvin K 2