Recent content by pbj_sweg

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    Why Is Magnetic Flux Calculated Using the Solenoid's Area Instead of the Loop's?

    I'm sorry. I didn't specify. The angle in question is 60°. I agree that if the B field was 90° to the loop's area vector, then the flux would be zero. I understand your reasoning here, but isn't the definition of flux based on the magnitude of the area which the field is going through? If we...
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    Why Is Magnetic Flux Calculated Using the Solenoid's Area Instead of the Loop's?

    Homework Statement Question asks for the flux through the loop when the loop is both perpendicular and at an angle to the solenoid. solenoid diameter = 2.2 cm loop diameter = 6.8 cm B inside solenoid = 0.22 T Homework Equations ∫B⋅dA = Φ_B The Attempt at a Solution B is constant so can...
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    Special Relativity - Is damage absolute?

    My equations were the following: - ##\Delta{x} = L## where L is the proper length of the garage - ##\Delta{t} = ?## because I'm assuming that these events are simultaneous for Julie and therefore not simultaneous for Joe - ##\Delta{x'} = L'_{car} -L_d## where ##L'_{car}## is the proper length...
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    Special Relativity - Is damage absolute?

    Sorry about that, I've attached one more picture. If it's still unreadable, I'll type everything out. Thank you.
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    Special Relativity - Is damage absolute?

    1. The problem statement, all variables, and given/known data A car of proper length 12m is being driven at 0.9c through a garage of proper length 6m. The garage has a front and back door. The garage owner, Joe, says that the car will fit inside the garage with no damage to it, albeit for a tiny...
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    Electric field strength in an ink-jet printer

    Homework Statement One type of ink-jet printer, called an electrostatic ink-jet printer, forms the letters by using deflecting electrodes to steer charged ink drops up and down vertically as the ink jet sweeps horizontally across the page. The ink jet forms 29.0 μm diameter drops of ink...
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    Electric field at a point affected by two charges

    Thank you, seems like the problem is just incorrect.
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    Electric field at a point affected by two charges

    I see. Is there anything else wrong with my calculations? Thank you so much for your help!
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    Electric field at a point affected by two charges

    I initially got an angle of 17.01° but after recalculating, using the picture you provided, I got 63.25°. Both are wrong :frown:. The program usually gives some kind of notification if the issue is with sig figs. Frankly, I think my technique is correct, so maybe MasteringPhysics just has the...
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    Electric field at a point affected by two charges

    Correct distance should be 0.1118 meters instead. I got my final answer to be ##1.82\times10^{13}## which is still wrong. I also didn't round until my final answer. Is there something wrong with my method instead?
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    Electric field at a point affected by two charges

    Sorry, that's a typo. It's to the 9th power. I used the correct value.
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    Electric field at a point affected by two charges

    Homework Statement (a) What is the strength of the electric field at the position indicated by the dot? (b) What is the direction of the electric field at the position indicated by the dot? Specify direction as an angle measured ccw from the positive x-axis. ##Q_{1} = 4.0 C## ##Q_{2} = 9.0...
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