Recent content by sunnnystrong

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    What is the magnitude of the electric field (rod)?

    I would think not though as they gave you the length of the rods ?
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    What is the magnitude of the electric field (rod)?

    Honestly, I have no idea. I am confused about how to set this problem up but found this equation in my book.
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    What is the magnitude of the electric field (rod)?

    Homework Statement Two thin glass rods are placed side by side 4.70 cm apart as shown in the diagram below. They are each 11.3 cm long and are uniformly charged to +10.4 nC . Answer the questions below regarding the electric field along a line which is drawn through the middle of the two glass...
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    What is the magnitude & direction of the eletric field?

    ohhh! thank you so much! the direction of the field will be 9.32 degrees above the horizontal
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    What is the magnitude & direction of the eletric field?

    & The magnitude of the field would be 1.2*10^4 N/C & the direction would be 8.95 degrees above the horizontal?
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    What is the magnitude & direction of the eletric field?

    Okay so I am a little confused but for Q1 the electric field would be: 10788 N/C... for Q2 it would be 2157.73 N/C... The components of Q1 would be (10788i, 0j) & for Q2 it would be (2157.7cos(60) i, 2157.7sin(60) j) ?
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    What is the magnitude & direction of the eletric field?

    ^^ see reply. I am a little confused about the directions.
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    What is the magnitude & direction of the eletric field?

    Oh, okay so for the E1 (Top charge): E1 = ((8.99*10^9)(3*10-9)/(.05^2) i, 0j) E2 (Bottom charge): E2 = ((8.99*10^9)(3*10-9)/(.05^2) i, (8.99*10^9)(3*10-9)/(.1^2) j) Etotal = (21576 i, 2697j) |Etotal| = 21743.909 N/C ? I already tried this and they said it was wrong
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    What is the magnitude & direction of the eletric field?

    Homework Statement Two +3.0nC charges are shown in the diagram below which are spaced 10cm apart. What are the strength and direction of the electric field at the position indicated by the dot in the figure (Figure 1) ? What is the electric field in N/C? What is the direction of the electric...
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    Derivative Troubles: A Scientist's Dilemma?

    Take the derivative with respect to t
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    Derivative Troubles: A Scientist's Dilemma?

    Foil everything... Than you're just going to be using the chain rule
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    Conservation of Linear momentum

    By conservation of momentum m₁ u = (m₁+ m₂) v v/u = m₁ /(m₁+ m₂) EQN 1 Kinetic Energy --> (1/2)(m₁+ m₂) v ² = (1/2) 0.25 m₁ u² EQN 2
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    Calculating the Time for a Car Chase: Kinematics Question

    Use: X-Xo = VoT + 1/2AT^2 For the police car: X-Xo = 1/2(2)(T-1)^2 + (26.4)T For the car: X-Xo = (37.5)T Set them equal to each other & solve for T :) The trick is realizing that the police car has two components for distance...
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    Density & Integration.... Help?

    *** Figured it out. all you had to do was square the constant (16/19) as well.
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