Suppose you go outside and look at three stars. Star A is blue, star B is white, and star C is red. Which star is the hottest, a
2 answers:
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Answer:
(a)
(b) neither increasing or decreasing
(c) opposite to the flow of charge carriers
Explanation:
The current through an inductor of inductance L is given by:
(1)
(a) The induced emf is given by the following formula
(2)
You derivative the expression (1) in the expression (2):
(b) At t=0 the current is zero
(c) At t = 0 the emf is:
w, L and Imax have positive values, then the emf is negative. Hence, the induced emf is opposite to the flow of the charge carriers.
(d) read the text carefully
Answer:
A = 11.77 m/s²
Explanation:
Mass of box (m) = 66kg
Force (f) = 777n
Acceleration (a) = ??
F = ma
777 = 66 · a
A = = 11.77m/s²