hi,
I enrolled as a biomed stream student, but after looking at the work opportunities/salary and other things I'm thinking about changing to chemical engineering - I do like both, but biomed sounds a tad more fun...
How do I change streams/is there a deadline/ If I change later on will I need...
Okay so I was under the impression there is no back emf in a generator
But my class notes say that a DC generator has no back emf
AC generator has back emf due to eddy currents
How can this be?
a bottle of cream has 8.20ppm aluminium. The bottle contains 9 g of cream
determine the mass of al in the cream
please show all working
thankyou so much :D
Hey, we've done an investigation in physics, and I'd just like to make sure I'm calculating correctly cause my values of g are totally whacked out, its projectile motion off the edge of a table onto the floor
table height :0.75m
distance travelled: 0.19m
t: 0.2, 0.3, 0.4 seconds
so using...