Evaluate the integral.
A. 
?
B. 
?
C. 
?2
D. 
?2
Answer: C
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Find the flux of the curl of field F through the shell S.F = (3y + 3)i - 2xj + (ez - 3)k; S: r(r, ?) = 5 sin ? cos ?i + 5 sin ? sin ?j + 5 cos ?k, 0 ? ? ? 2? and 0 ? ? ? 
A. 250 B. 125? C. -125? D. -250?
Determine the value of x or ? as requested. Round results to an appropriate number of significant digits.Determine the value of x.
A. 86.9 m B. 4.8 m C. 31.4 m D. 55.5 m
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.Two earthquakes differ by 0.1 when measured on the Richter scale. How would the seismographic readings differ at a distance of 100 kilometers from the epicenter?
A. The earthquake of greater magnitude has a seismographic reading that is 
times that of the lesser earthquake.
B. The earthquake of greater magnitude has a seismographic reading that is 
times that of the lesser earthquake.
C. The earthquake of greater magnitude has a seismographic reading that is 100 times that of the lesser earthquake.
D. The earthquake of greater magnitude has a seismographic reading that is 10 times that of the lesser earthquake.
Write the whole number in standard form.Last year a town consumed three hundred million, six thousand gallons of water.
A. 306,000,000 B. 300,060,000 C. 300,006,000 D. 300,600,000