A 5-gallon container of water (approximately 20 kg) having a temperature of 212°F is added to a 50-gallon tub (approximately 200 kg) of water having a temperature of 50°F. What is the final equilibrium temperature (in °C) of the mixture?
a. 54
b. 36
c. 18
d. 66
e. 14
c
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The __________ binds quarks together
Fill in the blank(s) with correct word
Coulomb's Law: Two tiny particles having charges of +5.00 ?C and +7.00 ?C are placed along the x-axis. The +5.00-µC particle is at x = 0.00 cm, and the other particle is at x = 100.00 cm. Where on the x-axis must a third charged particle be placed so that it does not experience any net electrostatic force due to the other two particles?
A. 4.58 cm B. 45.8 cm C. 50 cm D. 9.12 cm E. 91.2 cm
Earth's stratosphere is heated primarily by which process?
A) Convection from the Earth's surface. B) Absorption of infrared radiation by greenhouse gases. C) Absorption of visible light by ozone. D) Absorption of ultraviolet radiation by ozone. E) Atoms and molecules absorb infrared sunlight.
An interval of one Celsius degree is equivalent to an interval of:
a. one Fahrenheit degree. b. one kelvin. c. 5/9 Fahrenheit degree. d. 5/9 kelvin.