What is the function of the slips rings in an electric generator?
a. keeping current flowing in one direction
b. stopping current from leaving the generator
c. producing a path for current to flow
d. preventing the armature from spinning

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o