If a conductor is in electrostatic equilibrium near an electrical charge:
a. the total charge on the conductor must be zero.
b. the electric field inside the conductor must be zero.
c. any charges on the conductor must be uniformly distributed.
d. the sum of all forces between the conductor and the charge must be zero.
b
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Volume can be measured in units of m3 . Which of the following unit combinations also result in volume?
a. ft2/m b. cm·ft c. cm2in. d. m2·cm·ft
Suppose that Star X and Star Y both have redshifts, but Star X has a larger redshift than Star Y. What can you conclude?
A) Star X is moving away from us faster than Star Y. B) Star X is hotter than Star Y. C) Star Y is moving away from us faster than Star X. D) Star X is moving away from us and Star Y is moving toward us. E) Star X is coming toward us faster than Star Y.
How are the jets produced by radio galaxies similar to those produced by protostars?
What will be an ideal response?
When water freezes, it expands about nine percent. What would be the pressure increase inside your automobile engine block if the water in there froze? The bulk modulus of ice is 2.0 × 10^9 N/m2, and 1 ATM = 1.01 × 10^5 N/m2
a. 18 ATM b. 360 ATM c. 1 100 ATM d. 1 800 ATM e. 600 ATM