Physics, 29.12.2021 20:50 naenaekennedybe
a 2.0-kg block slides on a frictionless 25 inclined plane. a force of 3.8 n acting parallel to the incline and up the incline is applied to the block. what is the acceleration of the block?
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Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
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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)
Answers: 3
Physics, 22.06.2019 14:20
How many atoms of nitrogen are in the chemical formula ni(w on
Answers: 1
a 2.0-kg block slides on a frictionless 25 inclined plane. a force of 3.8 n acting parallel to the i...
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