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At what distance would a 1-g body weigh 1 dyn

help please and show your solution.-One dyne is equal to exactly 10 µN (micronewtons). Equivalently, the dyne is defined as the force required to accelerate a mass of one gram at a rate of one centime

An electron remains in an excited state of an atom for typically 10^-8 s. What is the minimum uncertainty

an electron remains in an excited state of an atom for typically 10^-8 s. What is the minimum uncertainty in the energy of the state (in eV)?-∆E*∆t = h so ∆E = 6.63e-34/1e-8 = 6.63e-26 Janswer

What is the magnitude of the average force on the target

At a shooting competition, a contestant fires and a 13.0bullet leaves the rifle with a muzzle speed of 130 . The bullet hits the thick target backing and stops after traveling 4.10 .-bullet = 13gm muz

Physics problem on variable gravitation field !!!

okay so it was like that I was learning the concept of centre of gravitation n I got to know that after it hokds good only if there is variable gravitational field unless its just like centre of mass

Physics Question, I am desperate. Regarding Force Diagrams and Velocity of an object being pulled.

a crate weighing 278 N is being pulled witha a force F=154 N. The rope used to pull the crate makes an angle 32 degrees with the horizontal. The coeffieceint of friction between crate and floor is f=.

Physics 12 - Current and voltage in circuit (Diagram given)

Diagram: http://i54.tinypic.com/3486jgy.jpg a) What current is drawn from the battery? b) What is the current in the 50 ohms resistor? c) What is the voltage across the 22 ohms resistor? Answers:

Find total resistance for the following circuit

Image provided in the following link: http://i56.tinypic.com/11vlbgl.png find the total resistance from AtoB, im not sure if i add everything even the 6amps?-It is like this as we can see the resistan

Please explain the string theory

Please explain in words that us common folk can understand. thanks-String theory suggests that fundamental particles in the standard model of physics (quarks, muons, neutrinos, etc.) arise from very v

Someone please help me with this physics problem!

A person opens a door by applying a 14-N force perpendicular to it at a distance 0.90from the hinges. The door is pushed wide open (to 120 degrees ) in 2.4 s . 1) How much work was done? 2) what was

A uniform solid cylinder (mass=20 kg , radius =0.12m)

is constrained to rotate about its axis of symmetry .the only torque about this axis of rotation results from a person s pulling on and unwinding a string(constant tension =3.0 N) that is wound around

An automobile with a linear momentum of 3.1×104 is brought to a stop in 5.5 .

What is the magnitude of the average braking force?-please put the units , do u mean 5.5 seconds ? if so then : impulse = F t = M2 - M1 => 5.5 F = 0 - 3.1 x 10^4 => F = - 5636.36 N (negative since

Question on de Broglie wavelength

If your de Broglie wavelength were 0.50m, how fast would you be moving if your mass is 75.0kg? Would you notice diffraction effects as you walk through a doorway? Approximately how long would it take

An athlete starts at point A and runs at a constant speed of 5.00 m/s around a round track 250 m in diameter

Find the x and y components of this runners average velocity between points A and B. Find the x and y components of this runners average acceleration between points A and B.-No point B is specified. I

Anyone who knows, can you simply explain what Quantum Physics is

Please explain to us common folk what Quantum P. is. If I had to explain this to a friend who isnt educated how would I explain it?-Quantum Physics (or Quantum Mechanics) is the story of the very very

The Special Theory of Relativity

What are two bits of experimental evidence that supports the special theory of relativity and how?-And who thinks there are only two?There are dozens if not hundreds of experiments that support the ST
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