Physics, 13.10.2019 16:00 alexmiranda00

Which of the following statements describes an actual orbit ?

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Physics, 22.06.2019 05:40, kkbrookly7496

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

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Physics, 22.06.2019 11:10, aprilstalder

Which situation will produce the greatest change of momentum

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Physics, 22.06.2019 11:20, cjd1214812148

The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)

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Physics, 22.06.2019 23:00, Miguel1310

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring