When a hydrogen atom's electron goes from an energy state of n = 1 to n = 3,
a. the radius of the electron's orbit is unchanged.
b. the radius of the electron's orbit is increased.
c. the radius of the electron's orbit is decreased.
d. the radius of the electron's orbit is infinite.
b
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In 1921, Stern and Gerlach performed an experiment that first demonstrated
a. orbital angular momentum quantization b. energy quantization c. space quantization d. magnetic orbital quantization e. that particles behave like waves
The interior of Earth is studied by using
a. infrared light waves. b. yellow light waves. c. seismic waves. d. gamma waves.
A hollow cylindrical (inner radius = 1.0 mm, outer radius = 3.0 mm) conductor carries a current of 80 A parallel to its axis. This current is uniformly distributed over a cross section of the conductor. Determine the magnitude of the magnetic field at a point that is 2.0 mm from the axis of the conductor
a. 8.0 mT b. 3.0 mT c. 5.3 mT d. 16 mT e. 1.2 mT
You have a machine which can accelerate pucks on frictionless ice. Starting from rest, the puck travels a distance x in time t when force F is applied. If force 3F is applied, the distance the puck travels in time t is
a. x. b. (3/2)x. c. 3x. d. (9/2)x. e. 9x.