) Estimate the bicyclist's average velocity over the following time intervals. Over , the average velocity is approximately mi/hr. Over , the average velocity is approximately mi/hr. Over , the average velocity is approximately mi/hr. (b) Estimate the bicyclist's instantaneous velocity at the following times. At hour, the instantaneous velocity is approximately mi/hr. At hours, the instantaneous velocity is approximately mi/hr. At hours, the instantaneous velocity is approximately mi/hr. (c) Estimate the bicyclist's maximum velocity and the specific time at which it occurs. The maximum velocity is approximately mi/hr, which occurs when
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Physics, 22.06.2019 11:20
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 14:30
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere
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) Estimate the bicyclist's average velocity over the following time intervals. Over , the average ve...
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