A very long, rectangular loop of wire can slide without friction on a horizontal surface. Initially the loop has part of its area in a region of uniform magnetic field that has magnitude B $=2\mathrm{.}90$ T and is perpendicular to the plane of the loop. The loop has dimensions $4\mathrm{.}00$ cm by $60\mathrm{.}0$ cm$,$ mass $28\mathrm{.}0$ g $,$ and resistance R $=8\mathrm{.}00103.$ The loop is initially at rest; then a constant force Fext $=0\mathrm{.}180$ N

is applied to the loop to pull it out of the field $.$

Part A

What is the acceleration of the loop when v

$=3\mathrm{.}00$ cm$/$s

$?$

Express your answer with the appropriate units.

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a

$=$

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Part B

What is the loop's terminal speed?

Express your answer with the appropriate units.

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v

$=$

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Part C

What is the loop's acceleration when the loop is moving at the terminal speed?

Express your answer with the appropriate units.

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Part D

What is the acceleration of the loop when it is completely out of the magnetic field?

Express your answer with the appropriate units.

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