An electron, initially at rest is accelerated through a potential difference of 550 V. What is the speed of the electron due to this potential difference?
A) 1.44 × 106 m/s
B) 1.59 × 106 m/s
C) 6.10 × 106 m/s
D) 18.7 × 106 m/s
E) 13.9 × 106 m/s
E
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The ________ is the totality of all space, time, matter, and energy
Fill in the blank(s) with correct word
A thin-walled cylindrical tank with a diameter of 2.0 m and wall thickness of 18 mm is open at the top. The height h of water (weight density 5 9.81 kN/m3) in the tank at which the circumferential stress reaches 10 MPa in the tank wall is approximately:
(A) 14 m
(B) 18 m
(C) 20 m
(D) 24 m
In the photoelectric effect, the energies of the ejected electrons
A) are proportional to the speed of light. B) are proportional to the intensity of light. C) are proportional to the frequency of light. D) vary randomly.
If you draw a spacetime diagram, how will the worldline of an object that is stationary in your reference frame appear?
A) vertical B) horizontal C) slanted D) curved E) a circle