Recent content by Curious314

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    What are the reactions at the support? (momentum)

    I am taking this course online, and in one of the slides there is this example, but i can't figure out the signs in the momentum formula. THANKS! so here is the exersice:
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    Calculating Magnetic Field Between Coaxial Circular Coils

    Thank you!
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    Calculating Magnetic Field Between Coaxial Circular Coils

    Homework Statement Two coaxial circular coils of radius R = 15 cm, each carrying 4.0 A in the same direction, are positioned a distance d = 20 cm apart, as shown in the figure. Calculate the magnitude of the magnetic field halfway between the coils along the line connecting their centers. (μ0 =...
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    A wire segment 1.2 m long carries a current I = 3.5 A

    Hello! So this is my lastest attemp: Since I is a current in opposite direction, is -I (thanks Tsny!) i j k 0 -0.6 -1.03 0.5T 0 0So: -3.5[(-0.6*0)-(-1.03*0)]i-[(0*0)-(0.5*-1.03)]j+[(0*0)-(-0.6*0.5)]k =-1.80j-1.05k This are the...
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    A wire segment 1.2 m long carries a current I = 3.5 A

    Thank you sooo much! :d
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    A wire segment 1.2 m long carries a current I = 3.5 A

    the Y component i think... not? got you on the direction! I missed that
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    A wire segment 1.2 m long carries a current I = 3.5 A

    Homework Statement A wire segment 1.2 m long carries a current I = 3.5 A, and is oriented as shown in the figure. The +x-axis points directly into the page. A uniform magnetic field of magnitude 0.50 T pointing toward the -x direction is present as shown. What is the magnetic force vector on...
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    Outlets on a household circuit are arranged in

    yeah they have like 4 different sets, and maybe one of those sets won't light completely, but the rest 3 will. No?
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    Outlets on a household circuit are arranged in

    some won't light and some others willl, so that's a combination of series and parallels
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    Outlets on a household circuit are arranged in

    Homework Statement Outlets on a household circuit are arranged in: a)parallel. b)a combination of series and parallel. c)series. d)neither series or parallel. e)not given The Attempt at a Solution I'm lost here...
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    Charge on 6.0-μF Capacitor at 40V: 240microC

    Homework Statement What charge appears on the plates of a 6.0-μF capacitor when it is charged to 40 V? Homework Equations q=CV The Attempt at a Solution q= CV q=(6microF)*(40V) q=240microC am I right here?? thanks!
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    Replace Fuses with Higher Ratings: True or False?

    thanks to both of you :D
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    Replace Fuses with Higher Ratings: True or False?

    well is a question for my homework, so all i have is this: If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating. true or false? I don't have further information
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    Replace Fuses with Higher Ratings: True or False?

    that makes a lot of sence, but I still believe that the question is too generic, because I'm not sure if it is because the fuse is originally too small or there is a problem with the circuit that causes the blowing. thanks anyway turbo
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    Replace Fuses with Higher Ratings: True or False?

    Homework Statement If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating. true or false? The Attempt at a Solution this is because there is too much current in the circuit and it does need to be replace with one of higher capacity? then true? Thanks!
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