A transformer is designed to convert the voltage from 240 V to 12 V, and has 4000 turns on its primary coil. The turns on its secondary coil should be? Note: V D /Vs=Np/Ns

A. 100

B. 200

C. 120

D. 480

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?

Ominge cade de la inaptimea de 3 metri apoi sare de la podea pina la inaltimea de 0,5 metri. determina a) forma traectoriei mingii. b) deplasarea mingii. c) drumul parcurs de minge. va rog foarte mult va dau coroana

Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity b mass is not dependent on gravity and weight is dependent on gravity c mass is not dependent on gravity and wight is dependent on gravity d mass is dependent on gravity and weight is not dependent on gravity