1.
I figured out the first few, I just can't get the last one!
-The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If θc= 40.4° what is the index of refraction of the material?
1.54
-A light ray strikes this material...
Homework Statement
A magnet of mass 0.10 kg is dropped from rest and falls vertically through a 35.0 cm copper tube. Eddy currents are induced, causing the copper to warm up. The speed of the magnet as it emerges from the tube is 1.50 m/s. How much heat energy is dissipated to the environment...
Homework Statement
The two wires shown in the figure carry currents of I = 5.58 A in opposite directions and are separated by a distance of d0 = 8.43 cm.
Calculate the net magnetic field at a point midway between the wires. Use the direction out of the page as the positive direction and into...
Consider the electric circuit shown in the figure. Using Kirchhoff's rules, select True or False for the following equations.
a.) I2 + I3 = I1
b.) ε1 - I2R2 - I3R3 - I1R1 = 0
c.) ε2 - I1R5 - I3R3 - I2R4 = 0
http://tinypic.com/r/2zyws55/8
My answers were: True, False, False.
However, the...
Homework Statement
In the circuit shown in the figure the voltage of the battery is 15.0 V, and the capacitors have the following capacitances: C1 = 2.32 mF, C2 = 2.25 mF, C3 = 4.85 mF, C4 = 4.89 mF
What is the equivalent capacitance of the four capacitors?
http://tinypic.com/r/24dn5oi/8
Two...
Homework Statement
Two resistors R1 and R2 are connected in series to a battery supplying a voltage of ∆V as shown. How much power is dissipated by the resistor R2 in the form of heat? Use the following data: R1 = 10 Ω, R2 = 5 Ω, ∆V = 3 V
http://tinypic.com/r/153tr91/8
2. Homework Equations...
Wow. I feel like a total idiot. IT IS C instead of nC! I figured it couldn't be a unit error because the homework system usually notifies us of that.
Thanks so much!
Homework Statement
The electric potential at a position located a distance of 18.6 mm from a positive point charge of 7.50×10-9C and 10.9 mm from a second point charge is 1.02 kV. Calculate the value of the second charge.
Homework Equations
q2 = r2 * (v - (k * q1 / r1)) / k
The...