Physics - July 2007

I found this from a timber shop(In a magazine). They sell this & also timber . It might be Matholite!

Please help,Thanks

2007-07-11 00:25:05 · 2 answers · asked by Anonymous

2007-07-11 00:16:26 · 4 answers · asked by Fernando V 1

1. an object falls freely from rest for 5 seconds. find the distance travelled in the last 2 seconds. (g = 9.8m/s^2)

2.A ball released from rest falls freely. it is found to fall through 53.9m in the 8th second of its journey. calculate the value of g.

2007-07-11 00:06:50 · 2 answers · asked by Anonymous

Three resistors connected in parallel have individual values of 4.0 ohm, 6.0 ohm, and 10.0 ohm. If this combination is connected in series with a 12.0 V battery and a 2.0 ohm resistor, what is the current in the 10.0 ohm resistor?

2007-07-11 00:02:24 · 5 answers · asked by Anonymous

2007-07-10 23:58:09 · 14 answers · asked by darestobelieve 4

What is the resistance of a resistor if the potential difference across the resistor is 4.0 V when a current of 10.0 A flows through the resistor?

2007-07-10 23:55:13 · 4 answers · asked by Anonymous

the voltage and current in the circuit
the resistance, the current, and the time the circuit operates
the voltage and the resistance of the circuit
the current and the time the circuit operates

2007-07-10 23:53:09 · 4 answers · asked by Anonymous

2007-07-10 23:47:57 · 8 answers · asked by waverider 2

I need to come up with an idea by friday for a physics project for my A Level course. It can be about almost anything, as long as its relatively quantitive (I can take data from any practicals I do) and its interesting!

Examples are:

Physics behind space travel
Physics behind the bicycle (I know, it was a previous example)
The physics of car engines

Please advice! Thanks! XD

2007-07-10 23:13:34 · 3 answers · asked by Sean 3

2007-07-10 22:21:26 · 5 answers · asked by Bonathon M 3

When dunking a tea bag in a cup of hot water and then lift it out to drain and drip the bag almost allways spins in a clockwise direction...why???

2007-07-10 22:13:27 · 5 answers · asked by Geedaw 1

2007-07-10 22:03:44 · 8 answers · asked by cinonett 1

Two point charges each have a value of 3.000 C and are separated by a distance of 4.000 m. What is the strength of the electric field at a point midway between the two charges:

a) 0.0000 N/C
b) 9.000 x 10^7 N/C
c) 4.500 x 10^7 N/C
d) 18.00 x 10^7 N/C

2007-07-10 21:26:50 · 2 answers · asked by Nate-dawg 2

2007-07-10 21:06:30 · 2 answers · asked by Anonymous

2007-07-10 20:48:40 · 5 answers · asked by The Devil 1

2007-07-10 20:02:26 · 10 answers · asked by JOY 1

I understand the twins paradox, that if you take two twins, put one in a very very fast space ship and leave the other on Earth, the one on Earth ages faster relative to the one on the ship. So, after traveling near the speed of light for a couple of years, when the one twin comes back to Earth he'll actually "be" younger than his twin. Well my question is what happens at absolute rest, if instead of traveling near the speed of light we travel near the speed of zero? Or is this absolute zero, like the absolute zero for temperature, impossible to achieve? Is it impossible to judge were absolute zero is in velocity; no reference point in the universe to judge zero from? But if we could make a spaceship that could compensate for all velocities, i.e., orbiting the Earth, Sun, center of the Milky Way, traveling through Milky Way, etc., would it "age" infinitely fast? So just a split second of absolute rest would be an eternity?

2007-07-10 19:44:34 · 9 answers · asked by Anonymous

Can you think of any other way we could understand, and manipulate our knowledge of, physics besides quantifying things?

An example I have in my head is, imagine if we wanted to put a satellite into orbit. How else could we figure out how to do this besides quantifying mass, speed, distance, etc. and knowing the mathematical relationships between these things?

You might be tempted to say something like trial and error, but that does not give us any understanding of physics.

2007-07-10 19:04:13 · 9 answers · asked by Anonymous

I saw a documentary tonight that was explaining how an atom can be shown to be in different places at the same time

The scientist was demonstrating this using laser beams and a device that reflected or split the beam.

Can you explain?

2007-07-10 19:02:42 · 7 answers · asked by Anonymous

2007-07-10 18:36:08 · 3 answers · asked by hector596 2

2007-07-10 18:21:19 · 5 answers · asked by Anonymous

we dont know how too do it. does it go against the laws of physics?

2007-07-10 17:37:15 · 1 answers · asked by chingow 2

I know a bit about physics, nothing much, but I am having trouble deciding what to study. Can anyone suggest a sort of guideline that covers the whole field?

Also, while I am asking this question. Can you do the same but just covering fundamental physics at a more detailed level?(fundamental particles, the forces, etc.)

2007-07-10 17:24:41 · 4 answers · asked by Anonymous

i really need a simple yet direct info about relativity so that i can understand it .and i believe it has something to do with time

2007-07-10 15:46:07 · 4 answers · asked by mark 1

2007-07-10 15:25:14 · 4 answers · asked by Tyler R 1

2007-07-10 15:02:19 · 4 answers · asked by Anonymous

2007-07-10 14:55:58 · 3 answers · asked by dandyta 1

Depending on size does/Could a shadow weight anything?

2007-07-10 14:00:37 · 6 answers · asked by Mr. Inconspicuous 2

2007-07-10 13:55:10 · 10 answers · asked by thepaladin38 5

2007-07-10 13:29:34 · 4 answers · asked by Anonymous