Answer:
(1, 4).
Step-by-step explanation:
For a counterclockwise rotation of 90 degrees:
(x, y) -----> (-y, x) so:
Y' (4, -1) ------> (1, 4).
Answer:
Okay I'm not sure this is correct, but I would like to try.
I think the answer is -15.
Step-by-step explanation:
I'm not to good at doing these problems, what I did was do 50 - 65 = ?
and I got -15.
I hope I helped! :)
Answer:
Current, I = 4.47 Amperes.
Step-by-step explanation:
Given the following data;
Inductance = 24H
Energy stored, Eind = 240J
To find the current;
The energy stored in an inductor is given by the formula;
Eind = ½LI²
240 = ½*24*I²
Cross-multiplying, we have;
480 = 24I²
I² = 480/24
I² = 20
Taking the square root of both sides, we have;
Current, I = 4.47 Amp
Answer:#2 - c #3 - b
Step-by-step explanation:
