Physics - April 2007

2007-04-23 16:27:29 · 5 answers · asked by bpanzer15 1

Cloning can create the duplicate copy of a living being, but can it create a duplicate copy of its mind too(the way that living being feels, thinks, responds to certain action and so on)? If not, cloned being will be just another person with a similar look.

2007-04-23 16:03:48 · 7 answers · asked by shiva prakash 1

The scientists are understanding the human body since time immemorial but still they have not reached the point to make a dead living being live though they know how the different body parts work. The scientists have even able to create the duplicate copy of the living beings by understanding the genetical code. All the things that comprise a living body are extracted from the nature itself, but still they cannot fill in the missing thing to a dead body and make it live. Why didn't the scientists achieved this even on a dead ant (not to talk about human)?

2007-04-23 15:57:19 · 14 answers · asked by shiva prakash 1

Hi, I've just been given this assignment in physics to create a set of notes explaining the relationship of Millikan's Oil Drop experiment with magnetism. I know that the experiment was initially used to find the charge of an electron as well as its mass. I also know that the Oil Drop Experiment has a huge relationship to electrostatics. What I'm confused about is how it relates to magnetism. Can any of you possibly elaborate or clarify this with possible diagrams and equations and explanations?

2007-04-23 14:43:41 · 4 answers · asked by Anonymous

Can a satellite coast in a stable orbit in a plane that doesn't intersect the Earth's center? Why or why not?

2007-04-23 13:55:42 · 2 answers · asked by Vienna 3

Assuming no air resistance, Why does an 8-km/s horizontally fired projectile not strike earth's surface?

2007-04-23 13:52:26 · 8 answers · asked by Vienna 3

In Kepler's thinking, what was the direction of force on a planet? In Newton's thinking, what was the direction of force?

2007-04-23 13:37:50 · 1 answers · asked by Vienna 3

assume barometric pressure is 30.00 inches Hg

2007-04-23 12:59:48 · 2 answers · asked by sharonf 1

I know that is a really starnge question but i'm very very bored =]

2007-04-23 10:44:03 · 20 answers · asked by The Evil Faerie 1

what is an everyday example of radiative diffusion ?

thanks.

2007-04-23 10:23:16 · 2 answers · asked by a_aramirez 1

I need to know "Shear Strength of AISI 9260" tempered steel for springs manufacturing.
Thank you very much.

2007-04-23 10:13:57 · 1 answers · asked by guspatagonico 1

If so, please provide example.

2007-04-23 10:04:43 · 3 answers · asked by Gurpz 2

were known to the world such as circular motion?

2007-04-23 09:53:07 · 3 answers · asked by Jane A 3

To measure the acceleration due to gravity on a distant planet, an astronaut hangs a 0.090 kg ball from the end of a wire. The wire has a length of 1.5 m and a linear density of 3.1 X 10^-4 kg/m. Using electronic equipment, the astronaut measures the time for a transverse pulse to travel the length of the wire and obtains a value of 0.066 s. The mass of the wire is negligible compared to the mass of the ball. Determine the acceleration due to gravity.

(My assumption is that gravity = 9.8 m/s; or gravity must also be solved for)

2007-04-23 09:39:22 · 2 answers · asked by MaxS 5

2007-04-23 09:36:05 · 3 answers · asked by armani 1

(fill in the blanks)
Tidal force, the difference in gravitational forces per unit mass (units N/kg), depends on the inverse ___ of distance

2007-04-23 09:28:41 · 1 answers · asked by Vienna 3

Why does the moon and earth circle each other?


(Or does the moon circle the earth or the earth circles the moon?)

2007-04-23 09:12:00 · 5 answers · asked by Vienna 3

2007-04-23 09:07:15 · 2 answers · asked by Anonymous

My oven door is broken and I am currently using a strong magnet to keep it closed. The magnet is on the outside of the oven door. If it gets heated up a little I want to know if it will still work.

2007-04-23 07:59:49 · 4 answers · asked by Sinnistergrin 2

i am a bit puzzled with some of them. can you help?

1,if you mix bicarbinate of soda with lemon juice, how could you tell that a gas was produced?

2,if you have a copper rod and you fixed one end of the rod and allowed the other to roll on a pin to show the movement of the rod, what happens to the motion of the copper atoms when the rod is heated?

2b,what happens to the average difference between the atoms of copper when the rod is heated?

3,a footballer is just going to kick the ball. when his boot hits the ball,how does the shape of the ball change?

thanks for your help!

2007-04-23 07:21:52 · 5 answers · asked by Anonymous

Could anyone please explain to me how the dissipation of energy works????

Thank you in advance!

2007-04-23 07:21:23 · 3 answers · asked by gingi_01 2

One person hits the rail with a hammer, while another one is some distance away with one ear on the rail. Suppose that the time difference between the arrivals of the two sounds travelling through air and through steel is 3.62 s. If the speed of sound in air was 338.6 m/s, how far (in km) are the two persons apart?

For steel, Young's modulus is 2.0 · 1011 N/m2 and the density is 7800 kg/m3.

2007-04-23 07:08:46 · 5 answers · asked by Division12 2

Describe how a person, at rest, with a source of sound (perhaps a speaker emitting a single frequency) can determine the velocity of an object moving toward the person by measuring the frequency of the sound reflected back to the person from the moving object.

2007-04-23 07:03:54 · 3 answers · asked by TripleEit 1

2007-04-23 06:26:07 · 10 answers · asked by Anthony C 1

2007-04-23 06:19:45 · 3 answers · asked by Anthony & Jill C 1

a) alternating current
b) two switches conneceted by a magnet
c) expanding and collapsing of a magnetic field
d) current through a wire

2007-04-23 06:08:18 · 2 answers · asked by Anonymous

A door has a height of 2.1 m along a y axis that extends vertically upward and a width of 0.99 m along an x axis that extends outward from the hinged edge of the door. A hinge 0.30 m from the top a hinge 0.30 m from the bottom each support half the door's mass which is 23 kg.

What is force on door at top hinge?
(N i + Nj)???

What is force on door at bottom hinge?
(Ni + Nj)

2007-04-23 06:04:54 · 3 answers · asked by Anonymous

A light inextensible string is fastened at one end to a point on the ceiling. It then passes under a smooth movable pulley P of mass 4kg, then over a smooth, light fixed pulley. a second particle Q, of mass 6kg, hangs freely from the other end of the string. All parts of the string which are not in contact with the pulleys are vertical.
If P moves up a distance x metres while Q moves down a distance y, explain why y=2x. - ?? why ???
Hence show that the acceleration of Q is twice that of P. - ??? . Find the acceleration of each mass and the tension in the string ...... I don't understand these movable pulley questions at all !

2007-04-23 05:20:12 · 2 answers · asked by SitnitskaS 1

I'm no physicist but I do have good common sense and Judy Wood's Billiard Ball example seems to make enormous sense to me. Am I wrong? Can someone refute her model using Billiard Balls and their free-fall speed of descent in a vacuum? If so, please give a detailed answer as to why her reasoning is faulty that, according to known laws of physics, WTC 1, 2, & 7 COULD NOT have fallen at the almost free-fall speeds that they did.

http://janedoe0911.tripod.com/BilliardBalls.html

2007-04-23 04:58:19 · 6 answers · asked by eloy_gonzalez_2 1

Romeo takes a uniform 12 m ladder and leans it against the smooth wall of the Capulet residence. The ladder's mass is 21.0 kg, and the bottom rests on the ground 2.8 m from the wall. When Romeo, whose mass is 72 kg, gets 90% of the way to the top, the ladder begins to slip. What is the coefficient of static friction between the ground and the ladder?

2007-04-23 03:24:26 · 1 answers · asked by bradi55489 2