Electricity is distributed from electrical substations to neighborhoods at 1.4×104 VV . This is a 60HzHz oscillating (AC) voltage. Neighborhood transformers, seen on utility poles, step this voltage down to the 120VV that is delivered to your house.

Part A
How many turns does the primary coil on the transformer have if the secondary coil has 100 turns?

Part B
No energy is lost in an ideal transformer, so the output power Pout from the secondary coil equals the input power Pin to the primary coil. Suppose a neighborhood transformer delivers 280 A at 120 V. What is the current in the 1.5×104 V line from the substation?

Which of the following is the most important role of marketing in the process selection decision? identifying points of differentiation for mass customization. stimulating demand in developing markets. estimating and managing future demand. providing translation of the voice of the customer.

Oceanside marine company manufactures special metallic materials and decorative fittings for luxury yachts that require highly skilled labor. oceanside uses standard costs to prepare its flexible budget. for the first quarter of the year, direct materials and direct labor standards for one of their popular products were as follows: direct materials: 2 pound per unit; $ 11 per pound direct labor: 2 hours per unit; $ 19 per hour oceanside produced 2 comma 000 units during the quarter. at the end of the quarter, an examination of the direct materials records showed that the company used 7 comma 500 pounds of direct materials and actual total materials costs were $ 98 comma 100. what is the direct materials cost variance? (round any intermediate calculations to the nearest cent, and your final answer to the nearest dollar.)

The hartman family is saving $400 monthly for ronald's college education. the family anticipates they will need to contribute $20,000 towards his first year of college, which is in 4 years .which best explain s whether the family will have enough money in 4 years ?