Recent content by carpelumen

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    Solve Refracted Ray Problem: Find Angle of Refraction

    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...
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    Solving Heat Energy Dissipation for a Falling Magnet

    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...
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    Net magnetic field due to two wires

    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...
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    Did my teacher make a mistake? (Kirchoff's Rules)

    I got it! Dumb mistake on my part
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    Did my teacher make a mistake? (Kirchoff's Rules)

    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...
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    Equivalent Capacitance in a circuit

    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...
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    Calculating power of one of two resistors

    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...
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    Electric Potential and Second Charge

    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!
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    Electric Potential and Second Charge

    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...
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