Solve.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 3.33? sec
B. 3 sec
C. 3? sec
D. 3.33 sec
Answer: D
You might also like to view...
Solve the problem.An artifact is discovered at a certain site. If it has 61% of the carbon-14 it originally contained, what is the approximate age of the artifact? (carbon-14 decays at the rate of 0.012% annually.)
A. 4119 yr B. 3250 yr C. 1789 yr D. 5083 yr
Solve the problem.Mardi received an inheritance of $70,000. She invested part at 9% and deposited the remainder in tax-free bonds at 4%. Her total annual income from the investments was $5300. Find the amount invested at 9%.
A. $25,000 B. $49,000 C. $64,700 D. $50,000
Solve the problem.In Little League, Andrew hit 6 home runs in 120 at-bats. What percent of the at-bats were not home runs?
A. 100% B. 95% C. 92% D. 97%
Convert the equation to polar coordinates and then sketch the graph.
?
?
A. ?
?
B. ?
?
C. ?
?
?
D. ?
?
E. ?
?
