Physics - November 2006

I would like to know cause I asked one of them a question. I was not expecting the answer she gave me.I would say the question but it is a little privet.I like to know if anyone know if she could be right.If anybody knows somebody that dose that typ of work or has gotten a physic reading before.

2006-11-01 20:36:54 · 6 answers · asked by Anonymous

which one is smaller ? is the energy in mist higher than steam ?

2006-11-01 20:26:13 · 1 answers · asked by valerie lee 1

If so how long would it take? I do not intend doing this of course!!

2006-11-01 20:16:12 · 16 answers · asked by derbyandrew 4

Like an immersion water heater or an oven element.
If you touch them you just get burnt not electricuted. (Even if you touch an earth).If it is an open curcuit what regulates the current?

2006-11-01 18:22:10 · 6 answers · asked by David T 3

2006-11-01 18:12:41 · 8 answers · asked by BABAI 1

2006-11-01 18:04:45 · 2 answers · asked by pikvab_007 vabs 1

when you are makeing a shadow on the wall and you move your hand how long dose it take for your shadow to catch up to were your hand stop? it is not at the same time nor is it as far behind of your hand but it is close, right? i think the answer is darkness has the same speed as light does, but what about a shadow's reaction time? what is it?

2006-11-01 17:35:30 · 6 answers · asked by jesse g 1

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 34 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 155 m), the block swings toward the outside of the curve. Then the string makes an angle with the vertical. Find the angle.

How does the force compare with the block? is the radius if the circle proportional to the radius of the blocks circle?

2006-11-01 17:03:35 · 1 answers · asked by Any help? 1

i would like to know the connections in the CCTV how it works what is the principle on which it work and the future of CCTV. the details i need should be based on Physics.

2006-11-01 16:58:42 · 2 answers · asked by marcell c 1

2006-11-01 16:43:06 · 5 answers · asked by themang99 1

2006-11-01 16:20:02 · 20 answers · asked by bigbri4n 1

I don't remember where I saw this, but I believe I read somewhere that if one places two different kinds of conductors next to each other in a circuit, running current in one direction produces heat, while running current in the other direction absorbs it. Did I make this up, or is there something remotely like this?

2006-11-01 16:13:41 · 8 answers · asked by Anonymous

2006-11-01 15:56:17 · 9 answers · asked by Anonymous

Is it correctly derived from Einstein's field equation?

2006-11-01 15:34:33 · 1 answers · asked by goring 6

Three vectors that are neither parallel nor antiparallel can be arranged to form a triangle if they sum to (0, 0). (a) What vector forms a triangle with (0, 3) and (3, 0)? (b) If you multiply all three vectors by the scalar 2, do they still form a triangle? (c) What if you multiply them by the scalar a?

2006-11-01 15:29:02 · 2 answers · asked by venom90011@sbcglobal.net 1

when you compress a sponge, which quantity change mass,inertia,volume or weight

2006-11-01 15:23:12 · 9 answers · asked by ANGEL_EYES 1

Which of the following statements are true of a projectile? List all that apply

A.the acceleration is pointed downward
B.the acceleration is directed upward as the projectile rises towards its peak.
C.the accelerlation value is zeroat the peak of the projectile's trajectory.
D the acceleration is increasing as the projectile falls downward from its peak.
E.the acceleration is decreasing as the projectile rises upward towards its peak.
F.the accelreation is a constant value.
G.the accleration value is dependant upon the mass of the projectile.
H. none of these

2006-11-01 15:22:37 · 6 answers · asked by "G" 1

is boyency. so if you can move from one medium to the outher without using all the power that you created then it seems like you could get power as long as there was gravity and the same with the water.
It seems more like an enginering feat to do than a law aginst themal dynamics.

2006-11-01 15:16:49 · 6 answers · asked by John K 1

Is there any in-depth books and websites relating to the Physics of Supernovae and/or Black holes/M-Theory. (not the basic Brief History of Time kind of stuff). I will be most grateful.

2006-11-01 15:15:27 · 1 answers · asked by elguapo_marco_2008@sbcglobal.net 3

2006-11-01 15:07:46 · 5 answers · asked by goring 6

Three identical train cars, coupled together, are rolling east at 2.0 m/s. A fourth car traveling east at 4.0 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five-car train. What is the speed of the five-car train?

2006-11-01 15:01:21 · 3 answers · asked by Anonymous

I get an answer of 11.2 rev/min and this could be the problem to me obtaining the proper answer or it could be my conversions. please help!

A playground merry-go-round of radius 2.00 m has a moment of inertia I = 230 kgm2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round and child) rotates at the rate of 14.5 rev/min. The child then proceeds to walk toward the edge of the merry-go-round. What is the angular speed of the system when the child reaches the edge?

2006-11-01 15:00:24 · 4 answers · asked by Anonymous

How are radiowaves, xrays red blue and gren light similar and how are they different.

2006-11-01 14:52:21 · 3 answers · asked by John L 1

what is the specific gravity?
is it have any unit?
how can we explain it in laymen way and technical/detail way

2006-11-01 14:51:56 · 1 answers · asked by MTT 1

I am doing a project where we make a vehicle that has to go 1 m and follows newton's third law. I cannot be moved by electricity, wind, fire, or a human hand. Any help? Designs?

2006-11-01 14:45:01 · 3 answers · asked by JeffK 1

How do you find the Spring Constant from these variables?

Mass is .4 kilograms
the distance stretched from rest is .012 meters (also the height)
Use the normal Gravitational constant, 9.81.

Do you find the Gravitational Potential energy first to compensate for the Potential energy elastic or what?

2006-11-01 14:32:09 · 1 answers · asked by elguapo_marco_2008@sbcglobal.net 3

2006-11-01 14:32:06 · 14 answers · asked by Anonymous

A 1900 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.00 m before coming into contact with the top of the beam, and it drives the beam 11.0 cm farther into the ground before coming to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest.

2006-11-01 14:27:40 · 3 answers · asked by thewordofrashi 2

A 65.0 kg person, running horizontally with a velocity of +3.68 m/s, jumps onto a 12.2 kg sled that is initially at rest.


(a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away.
I got this right with 3.1 m/s

(b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?

I've gotten different answes... .016, .16, .02, .4.... all those are incorrect.

What am I doing wrong in this problem? I cannot figure it out and it's frustrating me.

2006-11-01 14:23:21 · 3 answers · asked by Confused 1

stupid HW

2006-11-01 14:19:07 · 5 answers · asked by Steffi T 1