Conductor A has 16 electrons and conductor B has 32 electrons. The ratio of the valence electrons of conductor A and conductor B is given as
A) 1:2.
B) 2:1.
C) 1:3.
D) 3:1.
E) 3:2.
E
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Typically, if the mass of a white dwarf increases, the white dwarf shrinks and then explodes if the mass exceeds 1.4 solar masses.
Answer the following statement true (T) or false (F)
Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with an acceleration of 2.40 m/s2. How long does it take car A to overtake car B?
A) 5.50 s B) 12.6 s C) 19.0 s D) 316 s E) Car A never overtakes car B.
Which is a consequence of the synchronous orbit of the Earth's Moon (equal period ofrotation and revolution) ?
a) lunar eclipses b) phases of the Moon c) same side of the Moon always faces the Earth d) solar eclipses e) craters on the Moon
A supertanker filled with oil has a total mass of 6.1 × 10^8 kg. If the dimensions of the ship are those of a rectangular box 300 meters long, 80 meters wide, and 40 meters high, determine how far the bottom of the ship is below sea level. (?sea = 1020 kg/m3.)
a. 10 m b. 15 m c. 20 m d. 25 m e. 30 m