Physics - October 2006

Capacity
Different of digital / analogue
Sampling
Codeing (compression)
E.M.waves (frequency spectra)
Bandwidth
Polarization

2006-10-22 01:08:20 · 7 answers · asked by Anonymous

2006-10-22 00:44:14 · 5 answers · asked by gasp 4

2006-10-22 00:23:05 · 10 answers · asked by ahujas1 1

For develpment of film roll in dark room

2006-10-22 00:16:17 · 3 answers · asked by Veerasamy 1

this question is from physics from the topic mechanics of solids and fluids

2006-10-22 00:15:22 · 8 answers · asked by appu 1

A. current.
B. time.
C. resistance.
D. potential.

2006-10-22 00:11:03 · 9 answers · asked by Nancy 1

A circuit in which several branches are joined, so that when one branch is broken there's still a current in the other branches, is a(n) _______ circuit.

A. open
B. series
C. parallel
D. short

2006-10-22 00:08:55 · 14 answers · asked by Anonymous

A. resistance.
B. inductance.
C. electric current.
D. capacitance.

2006-10-22 00:06:29 · 11 answers · asked by Rola 1

A transformer in which the number of turns of wire in the secondary coil is greater than the number of turns of wire in the primary coil will


A. increase the voltage.
B. decrease the voltage.
C. increase the current.
D. decrease the current.

2006-10-22 00:04:32 · 6 answers · asked by Alian 1

A. meter.
B. amplifier.
C. generator.
D. transformer.

2006-10-22 00:02:02 · 6 answers · asked by Anonymous

A. decrease the number of turns of wire.
B. decrease the size of the core.
C. increase the current.
D. increase the length of the core.

2006-10-21 23:58:11 · 4 answers · asked by Anonymous

When the distance between unlike poles of two magnets is doubled, the force of attraction between the poles is decreased _______ times.
A. 1
B. 2
C. 4
D. 6

2006-10-21 23:55:29 · 11 answers · asked by Anonymous

A. 2 amperes
B. 60 amperes
C. 120 amperes
D. 240 amperes

2006-10-21 23:49:48 · 9 answers · asked by Anonymous

A. decrease its diameter.
B. decrease its temperature.
C. increase its length.
D. change its shape.

2006-10-21 23:48:25 · 7 answers · asked by Rola 1

A. amperes.
B. coulombs.
C. ohms.
D. volts.

2006-10-21 23:47:06 · 5 answers · asked by Alian 1

A. Increase the voltage.
B. Increase the resistance.
C. Reduce the potential difference.
D. Open the circuit.

2006-10-21 23:45:55 · 5 answers · asked by Anonymous

2006-10-21 23:14:25 · 20 answers · asked by aarthick 1

2006-10-21 23:03:00 · 10 answers · asked by fziya 1

2006-10-21 22:50:53 · 9 answers · asked by tajar12002 1

How is it that an entire room can be illuminated by one small light source, yet when that source is stopped, every trace of light is gone?

Is it just instantly absorbed by the surrounding surfaces?

I would think there might be a brief moment where the residual light is reflected back and forth between the walls or something.

Would the effect be the same in a room with a completely reflective floor, ceiling, and walls? Or would the light energy bounce continuously off the walls, keeping the room illuminated even in the absence of continuous source of light?

I'm sure there is a simple explanation, but please, enlighten me.

2006-10-21 20:12:47 · 13 answers · asked by Steven B 6

then everything would already been done?

2006-10-21 20:08:32 · 14 answers · asked by joe snidegrass 1

pls ppl help as soon as possible i need some gud ideas which will b gud enuf to impress a tuf teacher n it has 2 b simple enuf 4 a 9thie n in a gud budget n i dnt have many days left so answer soon pls.......i'll be very thankful........
thank u
tc

2006-10-21 20:04:23 · 11 answers · asked by amaanat_sporty 1

how it makes sound

2006-10-21 19:38:55 · 3 answers · asked by Avishan E 1

Suppose that the coefficient of friction between your feet and the floor, while wearing socks, is 0.250. Knowing this, you decide to get a running start and then slide across the floor.
Part A
If your speed is 3.00 when you start to slide, what distance will you slide before stopping?
Express your answer in meters.
1.84
Correct



Part B
Now, suppose that your young cousin sees you sliding and takes off her shoes so that she can slide as well (assume her socks have the same coefficient of friction as yours). Instead of getting a running start, she asks you to give her a push. So, you push her with a force of 125 over a distance of 1.00 . If her mass is 20.0 , what distance does she slide (i.e., how far does she move after the push ends)? Remember that the friction force is acting anytime that she is moving.
Express your answer in meters.

2006-10-21 19:31:10 · 3 answers · asked by googoosh g 1

2006-10-21 19:19:35 · 2 answers · asked by Sheff 1

I am trying to explain to someone that a static electric charge is gone the second it is grounded out, but can be rejuvenated again from the same source. Where can I get printed information that supports me?

2006-10-21 19:16:46 · 5 answers · asked by DM & J 1

Tough one...

2006-10-21 19:10:26 · 12 answers · asked by Anonymous

1.An object has a mass of 5 kg. Calculate its potential energy 3m above the ground.
2.Calculate the kinetic energy of a 1000 kg car traveling at 60km per hour.
3.A mass of 20g is 30cm from the floor. How much potential energy it have?
4.How much kinetic energy does a 150 N (Newton) barrel have upon striking the ground from a height of 5m?
5.How much current flows through a lamp with a resistance of 90 ohms when it is connected to a 120 V (Volt) outlet?
6.What is the resistance of a lamp which allows 0.8 A () current when 110 V (Volt) is applied to it?
7.Find a speed of sound in air at 30 C (Celsius).

I need clear solutions. thanks! :)

2006-10-21 18:59:30 · 8 answers · asked by idontknow 1

2006-10-21 18:14:42 · 12 answers · asked by sweety 1

is there any scientific basis for believing in one????

2006-10-21 17:51:59 · 7 answers · asked by Anonymous