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

Physics & Space Science

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If ? 1 = 4.0 V, ? 2 = 12.0 V, R1 = 4 ?, R2 = 12 ?, C = 3 ?F, Q = 18 ?C, and I = 2.5 A, what is the potential difference Va ? Vb?



a.
?30 V

b.
30 V

c.
5.0 V

d.
?5.0 V

e.
?1.0 V

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