Physics, 24.08.2019 16:00, egr1387

At what point on the track does a roller coaster have the greates kinetic energy?

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Physics, 22.06.2019 05:30, trevorhenyan51

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

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Physics, 22.06.2019 06:30, robertrkumar1

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

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Physics, 22.06.2019 09:00, rhettperkins

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

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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)