Object A has a charge q on it, object B has a charge q on it, and object C has a charge 2q on it. These charges are arranged, one each, at the vertices of an equilateral triangle. Which charge has the greatest magnitude electric force on it?
a. A
b. C
c. B
d. All have equal magnitude forces on them.
B
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Indicate whether the statement is true or false
Latent Heats: The melting point of aluminum is 660°C, its latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900 J/kg ? K. If 300 kJ of heat are added to 442 g of aluminum at 100°C, what is the final state of the system? That is, how much is liquid, how much is solid, and what is its temperature?
What will be an ideal response?
If three primary colors of light shine on a white wall and produce a white spot, the primaries must be
A) additive. B) subtractive. C) multiplicative. D) divisive.
In a two-slit experiment a third order bright fringe is observed at an angle of 7.10°. If the wavelength of light is 595 nm, what is the slit separation?
A) 1.44 × 10-5 m B) 1.07 × 10-5 m C) 2.12 × 10-5 m D) 2.53 × 10-5 m E) 3.76 × 10-5 m