A student has made the statement that the electric flux through one half of a Gaussian surface is always equal to the flux through the other half of the Gaussian surface. This is
a. never true.
b. never false.
c. true whenever enclosed charge is symmetrically located at a center point, on a center line, or on a centrally placed plane.
d. true whenever no charge is enclosed within the Gaussian surface.
e. true only when no charge is enclosed within the Gaussian surface.
c
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________ is the thermonuclear fusion of hydrogen to form helium operating in the cores of massive stars on the main sequence
a. The CNO cycle b. The proton-proton chain c. Hydrostatic equilibrium d. The neutrino process e. None of the above
Charge in an Electric Field: An electron is placed in a uniform electric field of 4.5 × 104 N/C that points to the right. (e = 1.6 × 10-19 C, melectron = 9.11 × 10-31 kg) (a) What are the magnitude and direction of the force on the electron?(b) If the electron is released from rest, what is its speed after 3.0 ps?
What will be an ideal response?
Suppose the room in which you are sitting was magically transported off the Earth, and sent accelerating through the universe at 9.8 m/s2. Assuming your doors and windows are sealed and closed, how could you tell that you'd left the Earth?
A) You couldn't; the equivalence principle tells us that you won't be able to tell the difference. B) You would weigh more than you do on Earth. C) Your time would run slower than it does on Earth. D) You'd hear a loud whooshing sound as you careened through space.
A refracting telescope has an eyepiece of focal length -80. mm and an objective of focal length 36. cm. What is the magnification?
What will be an ideal response?