Physics - February 2007

If yes then pls give example.
If no then why nit

2007-02-24 22:45:05 · 2 answers · asked by chhavi 2

Vout/R2= - Vin/R1

(Vout/R2)* R1=- Vin

(4.12/100)*10=-Vin

Vin=-0.412 ( the voltage is negative because an inverting operational amplifier is being used)

2007-02-24 22:38:55 · 3 answers · asked by Anonymous

2007-02-24 22:21:25 · 3 answers · asked by Anonymous

2007-02-24 22:19:45 · 4 answers · asked by mrthirteen 1

2007-02-24 21:48:19 · 2 answers · asked by mike_vik16 2

2007-02-24 21:47:26 · 2 answers · asked by mike_vik16 2

who can have any original and creative graphic representation of their own application that uses bimetallic strips?

2007-02-24 21:32:42 · 1 answers · asked by shennan 1

If we reach type 3 civilation, will we be apple to make bio suits to travel to the sun, travel through worm holes, or even to new unverise? Will it be possible?

2007-02-24 21:21:39 · 2 answers · asked by Han 1

2007-02-24 21:14:38 · 11 answers · asked by Anonymous

When we stand under high tension wires. We feel some what pull upwards and sometimes we can see small birds stick to the high tension wires. Why is that so?

2007-02-24 21:11:00 · 1 answers · asked by abhinav b 1

2007-02-24 21:08:52 · 8 answers · asked by sandhya g 1

My experiment is the following:

Firstly, three books (1 inch thick) is needed. Place one book on top of the other book, such that the experiment would be set with two books and the other remaining book 30 inches far from the other books. Then, two meter sticks will be put on top of the books. The sticks should form a V-shape, with the open part of the letter on the double book stack. The mouth of 2 funnels (The large opening) will then be taped together. Place the taped funnels on the narrow part of the V-shape (the corner of the single book stack).

Result:
Instead of expecting that the funnels would slide down due to the slope facing downward, it will climb up the slope.

Ok...well, thats it! I need a good explanation to this experiment...Please help me, the source of this experiment doesnt give a good explanation...Its too short and too narrow and my classmates would probably not understand if I would use it. best one gets 10 points. thanks...

2007-02-24 21:07:15 · 1 answers · asked by Jed Stephen 3

2007-02-24 21:01:12 · 5 answers · asked by Anonymous

Does anyone know how fluid lens work?
If I want to make one that I can experiment with (so it is not the tiny ones that they sell) what do I need and do?
Thanks!

2007-02-24 20:31:19 · 1 answers · asked by OrangeChocoChip 1

HEAT, CHANGE OF TEMPERATURE, SPEED, ACCELERATION, VOLUME, DENSITY, EQUILIBRIUM, AREA,

2007-02-24 20:15:03 · 3 answers · asked by ydette 1

Whats with a=vf-vi/t? According to my teacher it has something on it.. i remember he even demonstrated pulling a cloth with a glass on top of the cloth and when he pulled the cloth, the glass didn't fall?What's with that formula Newton formulated?

2007-02-24 20:06:24 · 2 answers · asked by p319 1

forming an upside-down image. Why then do we see things right side up?

2007-02-24 19:47:10 · 2 answers · asked by kafka 1

such lenses therefore necessarily have variable focal lengths. How is the focal length of such lenses varied?

2007-02-24 19:41:13 · 5 answers · asked by kafka 1

I am totally confused with this two terms-natural frequency and resonance...in my physics textbook it was stated resonance occurs when a system is made to oscillate at a frequency equilvalent to its natural frequency by an external force.The resonating system oscillates at its maximum amplitude....the effect of resonance can also cause damage.For exp,a bridge can collapse when the amplitude of its vibration increases as a result of resonance....I am confused..why resonance can cause damage yet it has the same frequency with the natural frequency?

2007-02-24 19:11:48 · 3 answers · asked by emikato_913 2

2007-02-24 19:09:12 · 1 answers · asked by >() 1

(a): Solve for the amount of force exerted on an 8-kg ball rolling at 2 m/s when it bumps into a pillow and stops in o.5 s

(b): How much force does the pillow exert on the ball?

2007-02-24 18:29:13 · 4 answers · asked by Nice Girl 1

a really long metal cable attached to it? What are some obstacles?

2007-02-24 17:50:49 · 3 answers · asked by Anonymous

Calculate the KE of an asteroid that is 10km across, has a desnity of 5 metric tons/m^3, and slams into the earth at 69,000mi/hr.

The equation is supposedly:
KE at impact= 0.5mv^2
But I don't understand how I'm supposed to do it.

Thanks for your help ^^

2007-02-24 17:50:08 · 3 answers · asked by ss_goldeneagle 1

planet?

2007-02-24 17:48:35 · 5 answers · asked by Anonymous

Would it become infinitely massive?

2007-02-24 17:26:14 · 15 answers · asked by KJ 1

2007-02-24 17:21:01 · 5 answers · asked by Anonymous

We humans have certain permissible degree of sound which our ear can receive at a safe level. Between what dB is this safe level? Any references are highly appreciated.

2007-02-24 17:05:50 · 3 answers · asked by a y e z 2

name a physical quantity which has no units

2007-02-24 17:03:17 · 9 answers · asked by atmaram 1

2007-02-24 16:55:15 · 1 answers · asked by midnight solitaire 2

A partical moves at a speed of 3.0 m/s in the + x-direction. Upon reachinng the origin, the partical receives a continuous constant acceleration of 0.75 m/s^2 in the -y direction. what is the position of the partical in 4.0 s later?

2007-02-24 16:45:00 · 2 answers · asked by Anonymous