There's this question that I dunno how to tackle :|
A person throws a cricket ball so that it's path is given by x=20t, y=16t(3-t), where x and y are measured in metres and t in seconds. Find the:
a) Initial velocity and the initial angle of projection.
b) Find the greatest height reached.
c)...
I was wondering if emf (electromotive force) can be negative?
And what formula would you suggest to use for the following question?
Q1.2
A model plane has wings that are each 2.55m long. If the plane is travelling at 84.0km/h in a region where Earth's magnetic field has a vertical...
I need full working out :) Or else I'll end up not getting it again ><" Thanks!
1)Simplify
2) A country property increased in value by 12.5% to a new value of $36 000. What was the value of the property before the increase?
3)
4)
5)
6)
7)
8)
a)
b)
Please help D: