A cube of water ice (? = 0.917 × 10^3 kg/m3) is placed in mercury (? = 13.6 × 10^3 kg/m3), which is liquid at 0° Celsius. If we ignore any possible melting of the ice cube and problems with the surface tension of mercury, the fraction of the ice cube that floats above the surface of the mercury is
a. 0.067 4.
b. 0.073 5.
c. 0.926.
d. 0.933.
e. 1.00.
d
You might also like to view...
Molecular clouds can be observed
a. using infrared telescopes to detect ionized gas in the clouds. b. using x-ray telescope to observe the x-ray radiation from the molecules in the cloud. c. using radio telescopes to observe the CO emission from the clouds. d. by looking for blue wispy regions near star clusters. e. by looking for the 21-cm radiation from hydrogen.
Two metal rods, one silver and the other copper, are both attached to a steam chamber, with a temperature of 100°C, at one end, and an ice water bath, with a temperature of 0°C, at the other
The rods are 5.0 cm long and have a square cross-section, 2.0 cm on a side. How much heat flows through the two rods in 60 s? The thermal conductivity of silver is 417 W/(m•K), and that of copper is 395 W/(m•K). No heat is exchanged between the rods and the surroundings, except at the ends. A) 20 kJ B) 39 kJ C) 47 kJ D) 49 kJ E) 11 kJ
A mass on a spring undergoes SHM. When the mass is at maximum displacement from equilibrium, its instantaneous acceleration
A) is a maximum. B) is less than maximum, but not zero. C) is zero. D) cannot be determined without mass information given. E) cannot be determined without spring constant information given.
The transport of large particle sizes is greatest
A) in turbulent streams. B) when stream speed is very fast. C) where the gradient exceeds the base level. D) on the inside of a meander.