The Cambrian is a(n)
a. epoch.
b. era.
c. eon.
d. period.
d
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Light strikes a diamond (n = 2.42) immersed in glycerin (n = 1.473) at an angle of 60° relative to the normal to the surface. What is the angle of refraction?
a. 20° b. 60° c. 32° d. 64° e. 15°
An alpha particle is moving at a speed of 5.0 × 105 m/s in a direction perpendicular to a uniform magnetic field of strength 0.040 T. The charge on an alpha particle is 3.2 × 10-19 C and its mass is 6.6 × 10-27 kg
(a) What is the radius of the path of the alpha particle? (b) How long does it take the alpha particle to make one complete revolution around its path?
Which of the following increases the magnetic moment of a rectangular coil the most?
1.doubling the coil's current and its number of turns 2.doubling the coil's area and doubling the magnetic field in which the loop is placed 3.doubling the magnetic field in which the coil is placed and doubling the angle between the magnetic field and the plane of the loop 4.All of these choices increase the magnetic moment by a factor of 4, thus they are all the "most".
In Diagram 6-1, which of the transitions would absorb a photon with the greatest energy?