Physics, 08.03.2021 19:00 nicholasferrell
To save fuel some truck drivers try to maintain a constant speed when possible a truck traveling at 26 km/h approaches a car stopped at a red light in the truck is 149.1 m from the car the light turns green in the car immediately begins to accelerate a 2.3 m/s squared how close does a truck come to the car assuming the truck does not slow down
Answers: 2
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An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?
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The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes
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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)
Answers: 3
To save fuel some truck drivers try to maintain a constant speed when possible a truck traveling at...
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