A 10-? resistor and a 20-? resistor are connected in parallel, and this combination is connected in series to a 30-? resistor. If the arrangement is hooked to a 12-V battery, how much current flows in the circuit?


0.033 A

Physics & Space Science

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What, approximately, is the percent uncertainty for the measurement 5.2?

A) 1% B) 2% C) 3% D) 4% E) 5%

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The average molecular translational kinetic energy of a molecule in an ideal gas is

A.

kBT.

B.
RT.

C.
kBT.

D.
RT.

E.
kBT, where n = number of internal degrees of freedom.

Physics & Space Science

Which of the following is not an exception to the general patterns of motion in the solar system?

A) the "backward" orbit of Triton around Neptune B) the extreme axis tilt of Uranus C) the counterclockwise rotation of Venus D) the large size of Earth's moon E) the rings of Saturn

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Massive, more luminous stars have shorter lives than their smaller, dimmer counterparts

Indicate whether the statement is true or false

Physics & Space Science