The gas, C3H8, is used in outside grills, and several moles of this gas will burn during an afternoon's grilling. What is the mass of one molecule of this gas?
a. 4.4 × 10^–23 g b. 7.3 × 10^–23 kg
c. 7.3 × 10^–26 kg d. 8.8 × 10^–26 kg
c
Physics & Space Science
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It is important that the two metals that compose a bimetallic strip have
A) different conductivities. B) different rates of expansion. C) equal thicknesses. D) all of the above E) none of the above
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Convert 1.2 × 10-3 to decimal notation
A) 1.200 B) 0.1200 C) 0.0120 D) 0.0012 E) 0.00012
Physics & Space Science
Four identical point charges (+4.0 ?C) are placed at the corners of a square which has 20-cm sides. How much work is required to assemble this charge arrangement starting with each of the charges a very large distance from any of the other charges?
a. +2.9 J b. +3.9 J c. +2.2 J d. +4.3 J e. +1.9 J
Physics & Space Science
What is the lowest pressure indicated by an isobar on Fig. 48.3?
Physics & Space Science