Physics - March 2007

no one has given me a good, believable answer yet. they always tell its a reflection off the water, or color beams that reflects from the sun thru the moisture in the air. its a bunch of crap

2007-03-09 06:24:32 · 7 answers · asked by Anonymous

radius? ( Assume all others factors remain unchanged).

2007-03-09 05:51:17 · 2 answers · asked by Anonymous

A spring with a spring constant of 8.0 N/m is compressed by 20 cm. If the spring is uncompressed initially, then the work done is??

how would you do this prob?? please help, thanks

2007-03-09 05:49:14 · 2 answers · asked by Anonymous

If the car is to just maintain contact with the track at the top of the loop, what is the minimum value for its speed at the point?

2007-03-09 05:45:49 · 1 answers · asked by Varun S 1

if a nuclear explosion in space released a large amount of alpha,gamma and beta radiation, which of these would be detected first on earth by a radiation detector....why

2007-03-09 05:39:10 · 5 answers · asked by Anonymous

torwards a city - would you see the city upside down?

2007-03-09 05:38:42 · 3 answers · asked by Steve Jem 1

twice the time as object B. What is the final speed of object A compared to that of object B?

2007-03-09 05:31:25 · 7 answers · asked by Varun S 1

twice the time as object B. What is the distance traveled by object A compared to that of object B?

2007-03-09 05:21:36 · 4 answers · asked by Varun S 1

I know this is stupid but i was thinking and could not stop my self from asking : if gases are heated to such an extreme point what would happen ??

will the electrons and other particles be set free and create vacuum?? do gases have a "vacuum point" ?
I am only 15 years old so dont bash me for this stupid question :)

2007-03-09 05:05:18 · 6 answers · asked by Anonymous

A 6.0 kg box is sliding up a 8.0 m long friction incline at a constant speed at an angle of 30 degrees by a force 50 N parallel to the incline. The coefficient of kinetic friction is 0.1. The work done against friction is??

please help, thanks!!

2007-03-09 05:03:45 · 3 answers · asked by Anonymous

2007-03-09 04:59:51 · 4 answers · asked by kiis0 x3 2

2007-03-09 04:58:31 · 1 answers · asked by kiis0 x3 2

2007-03-09 04:57:09 · 2 answers · asked by kiis0 x3 2

A boy on a skate board skates off a horizontal bench 5 m heigh at a speed of 10m/s. the speed(m/s)and the magnitude of acceleration(m/s^2)respectively,immediately before he touches the floor are?

2007-03-09 04:52:16 · 4 answers · asked by Anonymous

pls. help me to make a report about the Magnetism using the powerpoint... pls. help me guys.... send it to my email add... erna_nakins@yahoo.com... may god bless yah... tnx

2007-03-09 04:49:27 · 3 answers · asked by erna 1

please include a source

2007-03-09 04:42:59 · 5 answers · asked by yucare 2

Four identical point charges, Q, are placed at the corners of a square. Each side of the square has length 2.0 m. Determine the magnitude of the electric field at the point P, the center of the square.

I really don't understand the question. I think its missing something. Could someone help me out.

2007-03-09 04:36:33 · 5 answers · asked by Danielle 2

I have no idea how to solve this problem and it is really frustrating me. Can anyone help me out with an explanation? I believe that it involves two applications of the apparent depth equation [apparent depth= d(Nobserver/Nobject)], but I'm not sure how to work it out. Any help would be greatly appreciated!!!

A beaker has a height of 40.0 cm. The lower half of the beaker is filled with water, and the upper half is filled with oil (n = 1.48). To a person looking down into the beaker from above, what is the apparent depth of the bottom?

2007-03-09 04:31:08 · 2 answers · asked by larkinfan11 3

2007-03-09 04:20:52 · 7 answers · asked by Liam 3

A 20N horizontal force is applied to a 4.0 kg box. The box moves a horizontal distance of 3.0 meters. The work done by the 20 N force is?

could someone please help me out, thank you so much!

2007-03-09 04:05:15 · 5 answers · asked by Anonymous

i mean would a particle from this universe be restricted to this universe or could it have a probable existance outside it?

2007-03-09 03:53:51 · 7 answers · asked by Anonymous

a 2000 KG CAR IS TRAVELING ON A BANKED CURVED ICY ROAD. THE ROAD IS BANKED AT AN ANGLE OF 12 DEGREES AND HAS A RADIUS OF CURVATURE OF 500 M. THE VELOCITY OF THE CAR NECESSARY TO TRAVEL ON THE ICY ROAD WITHOUT SLIDING IS???

PLEASE HELP, THANK YOU!

2007-03-09 03:35:14 · 2 answers · asked by Anonymous

IMAGINE a circle split into 6 even equal parts. The numbers on these circles are: 1,2,3,4,5 and 6. This circle has an arrow attached to the middle.


In the above circle, a person spins the arrow. the fraction a/b is formed; where a is the # of the sector where the arrow stops after the first spin. b is the # of the sector where the arrow stops after the second spin. On every spin, each of the sectors has an equal probability on which the arrow stops. What is the probability that the fraction a/b is greater than 1?

2007-03-09 03:29:27 · 4 answers · asked by EGGO 2

What is the force of electric interaction between a copper ball
of radius R carrying net charge +Q, and a point charge +3Q
located at distance 2R from the center of the ball?

Please, help me people. My girlfriend will dump me, unless
I score at least B on this assignment... she's got all A's.

2007-03-09 03:15:45 · 2 answers · asked by Alexander 6

I just need it for a short while... a few seconds.. like a charge or pulse of some sort.

2007-03-09 03:12:40 · 1 answers · asked by Little Learner 2

2007-03-09 02:53:53 · 4 answers · asked by dopelgalang 1

if any visual presentation available please let me know. Thank you!

2007-03-09 02:53:35 · 4 answers · asked by Anonymous

i need to know how to convert cubid meters of water to metric tonnes

2007-03-09 02:50:36 · 6 answers · asked by ethel z 1

I have tried to do an evp, on several occasions and I have gotten nothing. what could I be doing wrong?

2007-03-09 02:41:47 · 3 answers · asked by curiousjules 3

2007-03-09 02:24:37 · 2 answers · asked by secret 1