Suppose 51 kw is to be transmitted over two 0.150 ω lines. part a estimate how much power is saved if the voltage is stepped up from 220 v to 2200 v and then down again, rather than simply transmitting at 220 v . assume the transformers are each 99% efficient. express your answer using two significant figures.

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.