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 in the energy of the state (in eV)?-∆E*∆t = h so ∆E = 6.63e-34/1e-8 = 6.63e-26 Janswer
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
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
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=.
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:
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 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
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
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
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
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
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
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
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