Thinking about an analogue clock, calculate the angular displacement in revolutions, radians and degrees for the following: • A second hand after three minutes An hour hand after 20 minutes The minute hand as it moves from 9.15 to 12.45.

1.047 rad

Explanation:

A secondhand makes a complete revolution (360 degrees) in 60 seconds, so it displaces 6 degrees for every second of elapsed time (360/60 = 6).

And in 10 seconds, it will make a displacement of 10 degrees (6 * 10 = 60).

Finally converting the result into Radians by multiplication with π/180.

the first, second, and fifth options

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.