Physics - February 2007

This is a class 12th question of CBSE.
This is a device which is taught under the topic 'MAGNETISM'.
In this you have both electric field as well as magnetic field acting perpendicular to each other.
Electric field acelerates the charged particle whereas magnetic field keeps it in a circular motion.

2007-02-08 23:19:45 · 2 answers · asked by Anonymous

2007-02-08 23:07:58 · 3 answers · asked by darren w 1

explain why?

2007-02-08 22:48:19 · 13 answers · asked by nip net! 1

get information from fissile materials

2007-02-08 22:21:09 · 5 answers · asked by mathu m 1

2007-02-08 20:46:17 · 12 answers · asked by casey g 1

i am studying in class10 -CBSE . i find difficulty in studying physics . ishould take my boards .so, how should i study??

2007-02-08 19:35:07 · 9 answers · asked by shru 1

It is known that airplane speed is affected by wind speed, that flying from the west to the east coast is faster than in opposite direction - all thanks to eastern oriented winds. Also, we know that Coriolis effect is to blame why winds blow in that direction. Could I assume correctly that Coriolis effect is not affecting airplane speed from west to east direction (or vice versa) but will have an effect if flightpath includes south-north component?

2007-02-08 19:28:49 · 3 answers · asked by EK 2

I am currently studying for a physics test and I have come across a section on refrigerators and heat pumps. I do not understand how a refrigerator removes thermal energy from a colder body and adds it to a warmer body? Please respond with serious answers. Thanks

2007-02-08 19:01:21 · 3 answers · asked by Anonymous

when as in trying to describe the relationship between two things. if one is going up while the other is going down, thats inverse, but what if they go up togehter?

2007-02-08 17:44:01 · 11 answers · asked by bigdanrh 1

Do molecular weight and electron number play a role in the Brownian movements?

2007-02-08 17:41:26 · 10 answers · asked by Chrisbelle 1

and also the limitation in using vernier caliper.

2007-02-08 17:17:13 · 4 answers · asked by lovely 1

I can't seem to figure out which one is right, i need help with this multiple question.

An airplane starts from A and goes to B at a
constant speed. After reaching B it returns
to A at the same speed. There was no wind.
Now, assume there was a wind from A to B of
constant magnitude.
Assume: The wind speed is less than that
of the plane (i.e., in magnitude).
When will the round trip take more time
when there is a wind or when there is no
wind?

1. Time taken is more when there is constant
wind.

2. Same in both cases because one way the
wind helps you and the other way it troubles
you.

3.Insufficient data.

4. Time taken is more when there is no
wind.


Thank you very much for your help.

2007-02-08 16:14:45 · 10 answers · asked by Betty 1

The initial velocity is 19.5 m/s at an angle of 28.1o above the horizontal.

2007-02-08 15:56:53 · 2 answers · asked by Anonymous

or in other words: why can't humans travel the speed of light and what does it have to do with the wavelength of a speeding object increasing with increasing speed?

2007-02-08 15:44:58 · 5 answers · asked by i bone you rmother 1

If an object is free-fall then the initial velocity is 0m/s and the acceleration is 9.8 m/s^2 in magnitude, but i need help figuring out how acceleration is affected when we throw it down. Please, help.

2007-02-08 15:37:37 · 7 answers · asked by Betty 1

imagine a mosquito flying in car and car movind at some speed mosquito is not in contact with the car but its still moving with car.
how ia this happening

2007-02-08 15:16:29 · 6 answers · asked by samy 1

An electric vehicle starts from rest and accelerates at a rate of 2.0 meter per seconds squared in a straight line until it reaches a speed of 20 meter per second. The vehicle then slows at a constant rate of 1.0 meters per second squared until it stops. How much time elapses form start to stop? How far does the vehicle travel from start to stop?

2007-02-08 15:16:10 · 3 answers · asked by Jonathan B 1

a 16 kg block slides down a frictionless slope which is at an angle of 27 degrees. Starting from rest, the time to slide down is t=1.77 seconds. (acceleration of gravity is 9.8)

1] what total distance did the block slide?
2] what is the total vertical height through which the block descended?

i worked it out and seemed to get a good answer but it was wrong, ahhhhh!

2007-02-08 15:03:55 · 3 answers · asked by Taylor 1

does the heavier object have more "momentum" as it hits the ground?

2007-02-08 15:03:07 · 9 answers · asked by Anonymous

(Momentum*Velocity)/ (Acceleration * distance) find units.

2007-02-08 14:56:47 · 3 answers · asked by ankitha 1

If an elevator is moving upward at a constant speed, how would I find the apparent weight of a 95.0kg person standing on a scale?

2007-02-08 14:51:24 · 7 answers · asked by Anonymous

The distance between two successive maxima of a transverse wave is 1.20 s, Eight crests, or maxima, pass a given point along the direction of travel every 12.0s.. Calculate the wave speed.

A piano emits frequencies that range from a low of about 28 Hz to a high of about 4200 Hz. Find the range of wavelenghts spanned by this instrument. The speed of sound in air is approximately 343 m/s.

2007-02-08 14:48:14 · 1 answers · asked by Kitana 2

2007-02-08 14:41:38 · 5 answers · asked by ANJU R 1

2007-02-08 14:32:17 · 5 answers · asked by Anonymous

In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 10-27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the gold nucleus, is fired at 1.0 107 m/s directly toward the nucleus, as in Figure P16.19. How close does the alpha particle get to the gold nucleus before turning around? Assume the gold nucleus remains stationary.

2007-02-08 14:22:39 · 1 answers · asked by Anonymous

The energy stored in a 51.0 µF capacitor is used to melt a 4.00 mg sample of lead. To what voltage must the capacitor be initially charged, assuming that the initial temperature of the lead is 20.0°C? Lead has a specific heat of 128 J/kg°C, a melting point of 327.3°C, and a latent heat of fusion of 24.5 kJ/kg.

2007-02-08 14:20:38 · 1 answers · asked by Anonymous

2007-02-08 14:19:48 · 5 answers · asked by Anonymous

The energy stored in a 51.0 µF capacitor is used to melt a 4.00 mg sample of lead. To what voltage must the capacitor be initially charged, assuming that the initial temperature of the lead is 20.0°C? Lead has a specific heat of 128 J/kg°C, a melting point of 327.3°C, and a latent heat of fusion of 24.5 kJ/kg.

2007-02-08 14:18:41 · 1 answers · asked by Anonymous

in other words would you go on for ever or end up where you started from

2007-02-08 14:08:50 · 4 answers · asked by newtonhawking 1

567.34 cm = ? dm
305.2 cg = ? kg

2007-02-08 13:38:10 · 4 answers · asked by Savannah & Co 1