Question

Typical household voltage varies according to the equation V= 120 sin 120 pi(t), where t is the time, in seconds, and V is the voltage, in volts. Determine the voltage after 1 min.

Answer 1

That 120 pi is the angular velocity 2pi f where f is frequency or 60 Hz.

Answer 2

So that would make that angle value in radians.

Answer 3

If you have that mode (radian) on your calculator use that mode. Remember t is in seconds and would be equal to 60

Answer 4

the answer can be positive or negative and will be between 0 and 120.

Answer 5

Like this? y= 120sin(120)pi(60) = 13133.11

Answer 6

That cannot be an answer exceeds 120 volts. Maybe 120 sin(120 Pi 60)

Answer 7

120 sin(120 Pi 60) = 0

Answer 8

that could be an answer. if it works out that is equivalent to 0, 270, or 360 degrees. You know I think that is equivalent to 2 Pi as that is evenly divided by 2 Pi, thus it would be a multiple of 2 Pi, You may have it by gosh.

Answer 9

As you know the sine wave oscillates above and below zero.

Answer 10

Right.

Thanks for helping me out. I will stick with 0 answer then.

Answer 11

It is defiinetly better than the 13133.11 volts. Good luck I gotta sign of for the night.