An electron moving along the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, what is the direction of the magnetic field in this region?
A)
along the +z-axis
B)
along the -z-axis
C)
along the -x-axis
D)
along the +y-axis
E)
along the -y-axis
B
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Listed following are several objects in the solar system. Rank these objects from left to right based on their orbital period around the Sun from shortest to longest.
Which of these does not describe a metal at room temperature?A) gas B) solid C) liquid D) shiny E) bendable
A) gas B) solid C) liquid D) shiny E) bendable
There must be equal amounts of mass on both sides of the center of mass (or center of gravity) of a system
A) True B) False
If the barrier width for an STM is 0.1 nm, what would be the corresponding minimum momentum uncertainty of an electron traversing this boundary?
a. 10–25 kg•m/s c. 10–24 kg•m/s b. 10–23 kg•m/s d. 10–22 kg•m/s