Three resistors connected in parallel have individual values of 4.0, 6.0, and 10.0 ?, respectively. If this combination is connected in series with a 12-V battery and a 2.0-? resistor, what is the current in the 10.0-? resistor?
a.
0.55 A
b.
1.0 A
c.
11 A
d.
16 A
a
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A thin rectangular piece of wood floats in water. You slowly pour oil with a density equal to that of the wood on the surface of the water until the height of the oil above the water is twice the height of the piece of wood. Which statement is correct?
a. The wood floats on top of the oil, so it sticks up in the air. b. The wood does not change its position c. The wood sinks below the surface of the water. d. The wood is half in the water and half in the oil. e. The wood floats in the oil just above the water.
An electron is placed in a constant electric field of 4.5 × 104 N/C
(a) What is the force on the electron? (b) If the electron is released from rest, what is its speed after 3.0 ps?
The far side of the Moon
a. has never been seen. b. has more craters than the near side. c. looks just like the near side. d. is always dark.
Find the period of a wave of 100-m wavelength in deep water where 
.
A. 5.0 s B. 8.0 s C. 12.5 s D. 15 s E. 0.125 s