Homework Statement
a generator of e.m.f 20V and internal resistance of 0.5 ohm is used to charge a car battery of emf 12V and internal resistance 0.10 ohm.They are connected in series together with a resistance R whose value is adjusted to give a charging current of 2.0A.
I was asked to...
m1u1 + m2u2 = m1v1 + m2v2
its wad I've been taught in my school...
2 identical bodies means both object is the same...
assuming both objects have the same mass...
in a perfect elastic collision, both objects exchange velocity...
so the 1 that has 4ms-1 now has -6ms-1 while the 2nd 1 will...
thx a lot metallic...
nw i understand...
cuz my teacher nw oni say dat dis question has haven been taught...
it requires long division which u jz xplained...thx
the answers indicate
z = 1
z = -\frac{1}{2} +/- \frac{square root 3}{2} i
i understand dat when a triangle is equilateral, all its angle must be 60 degrees.
with that in mind i can use cos 60 to find x and sin 60 for y...
d oni thg i dun understand nw is da positive n negative signs...
my...
Homework Statement
(z^3)-1 = 0. Solve the equation and show that the roots are represented in an Argand Diagram by the vertices of an equilateral triangle.Homework Equations
The Attempt at a Solution
i can only found 1 as the answer.By transferring the -1 to the other side to become 1 and cube...
Homework Statement
Car A travel at uniform velocity at 20 metre per second from t=0s.
Car B starts with 5 metre per second during t=0s and accelerates uniformly to 30 metre per second in t=30s.It travels at constant velocity of 30 metre per second from there onwards
Homework Equations
The...