Astep up transformer has a primary coil with 100 turns and a secondary coil with 25 turns if the input voltage in the primary coil is 40 volts what is the output voltage reduced to in the secondary coil
a) 20 volts
b) 35 volts
c) 4 volts
d) 10 volts

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Aball horizontally thrown from a cliff at 8m/s

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.