If a liquid does not wet the inner surface of a capillary tube inserted into it, the cohesion of the liquid is ________ the adhesion between the liquid and surface
A) less than
B) greater than
C) the same as
B
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Nuclear Reactions: In the nuclear reaction O +
n ? X +
He, what is X?
A. 12C B. 13C C. 14C D. 15C E. 17O
An alpha particle (charge = +2e) is sent at high speed toward a gold nucleus (charge +79e). What is the electrical force acting on the alpha particle when it is at a distance of 2 × 10?14 m away from the gold nucleus? (e = 1.6 × 10?19 C)
What will be an ideal response?
Copper is usually the material of choice for the wire in a coil to produce a magnetic field and in wiring for electric motors. Copper wire is placed in a magnetic field (H) of 1×106 A/m. The magnetic susceptibility of copper is –9.7×10-6
(a) Determine the intensity of magnetization (M) in the Cu. Is this M in the same direction or opposed to H? (b) What is the average dipole moment per atom (pa) in Cu that is parallel or antiparallel to H when subjected to the applied magnetic field magnetic field?
Assume a proton in a 1-dim box of width 3.0 fm is in its 1 st excited state. (a) What is its "kinetic" energy (in eV)? (b) How close (fm) to the wall of the "box" is the probability density a maximum?
What will be an ideal response?