An answering machine needs 7.5 V a. c to operate. Its transformer, plugged into a 120 V a. c source, has 658 turns for the primary coil. How many turns should the secondary coil have?

What is special about a dc circuit ?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.