Mastering Physics Solutions: Suspending Charged Particles Using Electric Fields

Mastering Physics Solutions: Suspending Charged Particles Using Electric Fields

On February 10, 2014, in Chapter 15: Electric Charge, Forces, and Fields, by Mastering Physics Solutions

Part A = -2.13 * 10^-5 C Click to use the calculator/solver for this part of the problem
Part B = E = 1.02 * 10^-7

What must the charge (sign and magnitude) of a particle of mass 1.43 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 660 N/C?
What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight?

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Mastering Physics Solutions: Problem 26.67

Mastering Physics Solutions: Problem 26.67

On March 5, 2013, in Chapter 15: Electric Charge, Forces, and Fields, by Mastering Physics Solutions

Part A = 180 nC m Click to use the calculator/solver for this part of the problem

An electric field E = 100,000i N/C causes the 5.0 g point charge in the figure to hang at a 20° angle.
What is the charge on the ball?

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Mastering Physics Solutions: Stopping the Proton

Mastering Physics Solutions: Stopping the Proton

On February 24, 2013, in Chapter 15: Electric Charge, Forces, and Fields, by Mastering Physics Solutions

Part A = 0.180 m Click to use the calculator/solver for this part of the problem

An infinitely long line of charge has a linear charge density of 8.00*10^−12 C/m. A proton is at distance 19.0 cm from the line and is moving directly toward the line with speed 1200 m/s.
How close does the proton get to the line of charge?

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Mastering Physics Solutions: Speed of an Electron in an Electric Field

Mastering Physics Solutions: Speed of an Electron in an Electric Field

On February 20, 2013, in Chapter 15: Electric Charge, Forces, and Fields, by Mastering Physics Solutions

Part A = 8,577,000 m/s Click to use the calculator/solver for this part of the problem

Two stationary positive point charges, charge 1 of magnitude 4.00 nC and charge 2 of magnitude 1.95 nC, are separated by a distance of 57.0 cm. An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges.

What is the speed v(final) of the electron when it is 10.0 cm from charge 1?

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Mastering Physics Solutions: Visualizing Electric Fields

Mastering Physics Solutions: Visualizing Electric Fields

On February 9, 2013, in Chapter 15: Electric Charge, Forces, and Fields, by Mastering Physics Solutions

Part A = Option D
Part B = Field lines cannot cross each other, The field lines should be parallel because of the sheet’s symmetry
Part C = Option B
Part D = The field lines should be smooth curve, The field lines should always end on negative charges or at infinity
Part E = QA = +7q, QB = -3q

Electric field lines are a tool used to visualize electric fields. A field line is drawn beginning at a positive charge and ending at a negative charge …

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