A transformer is used to operate a model train. The transformer, which is plugged into a standard electrical outlet, produces an output voltage of 15.0 V (rms), applied to the train's tracks. (The voltage supplied to transformer from outlet is 120 V.) (a) What is the ratio of the number of turns in the primary to the number of turns in the secondary?
(b) If the train uses an average power of 14.0 W, what are the rms currents in the secondary and in the primary? Assume an ideal transformer, with no energy loss.

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

Suppose you hit your hand against the edge of table. using newton’s third law of motion why does my hand hurt? explain

An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror