Answer:
1.08×10⁹ J
Explanation:
From the question given above, the following data were obtained:
Power (P) = 100 kilowatt
Time (t) = 3 hours
Energy (E) =?
Next, we shall convert 100 kilowatt to Watts. This can be obtained as follow:
1 KW = 1000 W
Therefore,
100 KW = 100 KW × 1000 W / 1 KW
100 KW = 100000 W
Thus, 100 KW is equivalent to 100000 W.
Next, we shall convert 3 hrs to second (s). This can be obtained as follow:
1 h = 3600 s
Therefore,
3 h = 3 h × 3600 s / 1 h
3 h = 10800 s
Thus, 3 h is equivalent to 10800 s.
Finally, we shall determine the amount of energy consumed as follow:
Power (P) = 100000 W
Time (t) = 10800 s
Energy (E) =?
P = E/t
100000 = E / 10800
Cross multiply
E = 100000 × 10800
E = 1.08×10⁹ J
Therefore, 1.08×10⁹ J of energy was consumed.
I think it's the last one.
Hope I helped
<span>The amplitude. It is the displacement at a peak.</span>
Answer:
a) 2.90*10^-6 T
b) 0.092A
Explanation:
a) The magnitude of the magnetic field is given by the formula for the calculation of B when it makes an electron moves in a circular motion:
me: mass of the electron = 9.1*10^{-31}kg
q: charge of the electron = 1.6*10^{-19}C
R: radius of the circular path = 4.3cm=0.043m
v: speed of the electron = 2.20*10^4 m/s
By replacing all these values you obtain:
b) The current in the solenoid is given by:
