The mass of a sulfur atom is 32.0 u, and the mass of a fluorine atom is 19.0 u. What is the mass of a mole of sulfur hexafluoride (SF6)?
a. 41.0 g
b. 20.5 g
c. 106 g
d. 146 g
e. 211 g
d
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After the first solid grains formed in our solar system, these particles could then grow by the process of ____________, the collision and sticking of one particle with another to continue the formation of planetesimals. Each of these has many atoms or molecules
a. accretion b. sublimation c. hydration d. condensation e. vaporization
In the figure, the current in a solenoid having no appreciable resistance is flowing from b to a and is decreasing at a rate of 9.6 A/s. The self-induced emf in the solenoid is found to be 8.4 V
(a) What is the self-inductance of the solenoid? (b) Which point, a or b is at higher potential? What will be an ideal response?
The rings of Uranus and Neptune are found
A) by the Hubble Space Telescope. B) above their equators. C) in the ecliptic plane. D) outside the Roche limit. E) all of the above
A ventilation fan has blades 0.50 m long rotating at 20 rpm. What is the centripetal acceleration of a point on the outer tip of a blade?
a. 1.1 m/s2 c. 0.55 m/s2 b. 2.2 m/s2 d. 3.3 m/s2