If I1 goes to the right through R1, I2 goes to the right through R2, and I3 goes to the right through R3, what is the resulting equation resulting from applying Kirchhoff’s junction rule at point b?
a.
I1 + I2 + I3 = 0
b.
I1 + I2 – I3 = 0
c.
I1 – I2 + I3 = 0
d.
I1 – I2 – I3 = 0
a
You might also like to view...
Spike claims that dimensional analysis shows that the correct expression for change in velocity, 
, is 
, where m is mass, t is time, and F is the magnitude of force. Carla says that can't be true because the dimensions of force are 
data-wiris-created="true" class="Wirisformula" align="middle" />. Which one, if either, is correct? A.
.B.
.C.
.D.
.E.
.An eyeglass lens is cut with one surface having a radius R1 and the other surface having a radius R2, with R1 < R2 . Both positive radii are measured from the same side with R2 being the side closer to the eye. Is this convex-concave lens a converging lens or a diverging lens?
a. This is neither, since a lens cannot be made this way. b. This is a diverging lens. c. This can be either a converging or diverging lens, as more information is needed for a final determination. d. This is a converging lens.
Different observers always agree about the order of events that occur at the same place
Indicate whether the statement is true or false
A wind of velocity 10 m/s is blowing through a wind generator with blade radius 5.00 meters. What is the maximum power output if 30.0% of the wind's energy can be extracted? ?air = 1.25 kg/m3
a. 7.20 kW b. 14.7 kW c. 21.3 kW d. 29.4 kW e. 39.6 kW