Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C After the 1 kg block of ice melts, the amount of heat required to raise its temperature to 10 °C is
a. 2,000 J.
b. 4,000 J.
c. 20,000 J.
d. 40,000 J.
e. 334,000 J.
d
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When our Earth becomes tidally locked with the Moon, which of the following statements will be true?
A. An astronaut on the Moon would see only one side of Earth. B. The Moon will not go through phases. C. The Moon will only be visible during the day. D. There will be no eclipses.
In order for a satellite to be geosynchronous, its orbit must:
a. go over the North and South Poles. b. be over the equator. c. be over a single longitude. d. emit television signals.
A 5 500-N weight is held suspended in equilibrium by two cables. Cable 1 applies a horizontal force to the right of the object and has a tension, T1 . Cable 2 applies a force upward and to the left at an angle of 40.0° to the negative x-axis and has a tension, T2 . What is the tension, T1?
a. 4.6E+3 N b. 6.6E+3 N c. 4.2E+3 N d. 8.6E+3 N e. 1.1E+4 N
Find the pressure in atmospheres in the water at the base of Dworshak Dam if the water in the reservoir is 200 meters deep. (1.01 × 10^5 N/m2 = 1 ATM.)
a. 20.4 ATM b. 24.7 ATM c. 29.4 ATM d. 194 ATM e. 75 ATM