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Question about isotopes

How will an understanding of isotopes help understand the experiments being conducted at the LHC I have to answer that question for my chem project, so far i got no real answer to that what i got in

So this kid told me gravity doesn't exist...

We were talking about are own scientific theories and his was that gravity didnt exist just that matter has the urge to clump or be together. I thought it was interesting but what is your take on it?-

Physics Question Regarding Acceleration, Tension.

This is the setup. http://imageshack.us/photo/my-images/155… Given this setup, can someone help me a) Find the acceleration and the tension in the string, assuming that the setup is frictionless? b

Physics help...frequency

A pair of in-phase stereo speakers is placed side by side, 0.63 m apart. You stand directly in front of one of the speakers, 0.8 m from the speaker. What is the lowest frequency that will produce cons

How come you can't burn anything with light

When using a magnifying glass, how come you can burn objects by magnifying the Suns rays into a tiny dot. However, when you magnify a light bulbs light rays to a dot, they cant burn anything?-When usi

Magnetic flux problem - physics

Can someone please sho me hoe to work this out? A long, straight wire carrying a current of 1.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 2.00 m. Determine the total

Antimatter and anti particles are same?can't we find some of them ?if particles and anti articles met,will...

....met will they destroy each other? why are we made of matter other than the anti matter? please answer all the questions if possible. thanks you for your time.-Theyll annihilate when they met each

How much work is done

A crane lifts a 1400kg girder 96m in 2.5 minutes. 1. How much useful work does the crane do? 2. What is the increase in potential energy of the girder? 3. What is the useful power of the crane? 4. Th

Gyroscope - Conservation of Angular Momentum and Precession

I am having trouble understanding how a spinning gyroscope seemingly defies gravity. What I got out of reading: - L = Iw (kgm^2/s = kgm^2 x rad/s) - mass is constant - momentum: conserved - theref

I want to invent a device to shrink people.....

So they are able to enter the other dimensions predicted by the string theory - so obviously they need to be made teeny tiny - How do I do this? 10 points to the person who tells me!-The problem is n

A ball is thrown horizontally from the roof of a building 50 m tall and lands 35 m from the base. What was the

A ball is thrown horizontally from the roof of a building 50 m tall and lands 35 m from the base. What was the balls initial speed-vectors are handledseparately the up down vector of gravity is 90 de

Finding the Moment of Inertia of...

A cord is wrapped around a fixed pulley of mass 12 kg and radius 30 cm. When a 22 N force is applied to the cord, the pulley accelerates uniformly from rest to an angular speed of 50 rad/s in 5 s. Det

How can a charged atom (an ion) attract a neural atom

How can a charged atom (an ion) attract a neutral atom? 1. The charged atom can emit x rays to induce ionization of the neutral atom. 2. An ion polarizes a nearby neutral atom, so that the part of the

Convection, conduction, and radiation examples in can

if i fill a aluminum soda can with hot water, how will convection, conduction, and radiation transfer heat energy? will it change if i insulate the can (ie with plastic wrap, rubber etc.?) thanks!-The

One statement about how distance and time are connected to each other when objects move with a steady speed

Write one statement about how distance and time are connected to each other when objects move with a steady speed.-Distance is proporsional to the time-The distance, d, an object will travel over a ti
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