Posted by linds on Saturday, April 21, 2012 at 12:43pm.
An object is moving along a straight line and the uncertainty in its position is 1.1 m.
(a) Find the minimum uncertainty in the momentum of the object.
(b) Find the minimum uncertainty in the object's velocity, assuming that the object is a golf ball (mass = 0.045 kg).
(c) Find the minimum uncertainty in the object's velocity, assuming that the object is an electron.

Physics please help!  Elena, Saturday, April 21, 2012 at 3:08pm
Δx•Δp≥Һ/2
Δx•Δp=Һ/2
Δp = Һ/2• Δx = 6.63•10^34/2•1.1 = 3•10^34 kg•m/s,
Δp = m•Δv
Δv = Δp/m = 3•10^34/0.045 = 6.7•10^33 m/s,
Δv = Δp/m = 3•10^34/9.1•10^31 = 3.3•10^4 m/s.

Physics please help!  linds, Sunday, April 22, 2012 at 2:02pm
Using the Bohr model, estimate the wavelength ë of the Ká characteristic Xray for a metal an atom of which contains Z = 50 protons.
Answer This Question
Related Questions
 physics HELP!!  An object is moving along a straight line, and the uncertainty ...
 physics  An object is moving along a straight line, and the uncertainty in its ...
 PHYSICS  A proton is confined to a nucleus whose diameter is 5.5*10^15m. If ...
 Physics  Suppose I measure the velocity of an object at two different times, t1...
 physics  An object is released from rest and falls in free fall motion. The ...
 Physics  An object is released from rest and falls in free fall motion. The ...
 Chemistry  Heisenberg's uncertainty principle can be expressed mathematically ...
 chemistry  Heisenberg's uncertainty principle can be expressed mathematically ...
 chemistry  Heisenberg's uncertainty principle can be expressed mathematically ...
 physics  Suppose Fuzzy, a quantum mechanical duck, lives in a world in which h...
More Related Questions