Question

7 Let i = root of-1. The product of the real part of the
roots of z2 - Z=5–5i is
a) - 25 b) - 6 C) - 5 d) 25​

Answer 1

Step-by-step explanation:

a fly wheel is rotating at 50 rpm. A motor

gives it a constant angular acceleration of 0.5

rad/s2 until it reaches 100 rpm. the motor is then

disconnected. How many revolutions are

completed at t= 20 s?

(A) 25 rev

(B) 29 rev

(C) 20 rev

(D) 15 rev