Answer:
.
Explanation:
Power carried by the line
Voltage across the line Volts
Current flowing in the line =i
Size of magnetic field =B
Distance from the line
Formula Used:
Current flowing is given as
Magnetic field by the current carrying wire is given as
Inserting the values
Conclusion:
Thus, the magnetic field comes out to be .
Intensity of electromagnetic wave is given as
given that
here we know that
now we have
now we will have
frequency of wave is given as
now the induced EMF is given as
Answer:
a) They are in the same point
b) t = 0 s, t = 2.27 s, t = 5.73 s
c) t = 1 s, t = 4.33 s
d) t = 2.67 s
Explanation:
Given equations are:
Constants are:
a) "Just after leaving the starting point" means that t = 0. So, if we look the equations, both and
depend on t and don't have constant terms.
So both cars A and B are in the same point.
b) Firstly, they are in the same point in x = 0 at t = 0. But for generalized case, we must equalize equations and solve quadratic equation where roots will give us proper t value(s).
s,
s
c) Since the distance isn't changing, the velocities are equal. To find velocities, we need to take the derivatives of both equations with respect to time and equalize them.
s,
s
d) For same acceleration, we we need to take the derivatives of velocity equations with respect to time and equalize them.
s