Task 5: A scientist prepares a test tube 10 cm from the axis of rotation in a centrifuge. The centrifuge starts at rest, and every second thereafter, the rotation rate of the centrifuge increases by 400 rpm, up to the maximum of 4000 rpm. Draw a scaled and labeled graph of the centrifugal force (in Newtons) vs. time on a particle of mass 0.01 grams inside the test tube, with data points for each second from 1 to 10. Explain how you know if your graph of force vs. time should be linear or parabolic. Comment: When you prepare your graph, you can save yourself some time by rounding your force calculations to two significant digits.

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G12 Physics 277.1

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G12 Physics 278.1

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A hollow non-conducting spherical shell has inner radius R1 = 9 cm and outer radius R2 = 15 cm. A charge Q = -25 nC lies at the center of the shell. The shell carries a spherically symmetric charge density ρ = Ar for R1 < r < R2 that increases linearly with radius, where A = 17 μC/m4. What is the radial electric field at the point r = 2R2? Give your answer in units of kN/C.

Please don't give answer in handwritten..thnku