Which object is completely opaque?
a:wooden spoon
b: drinking glass
c: wax paper
d:w...
Physics, 17.12.2020 18:00 brookieharrisop5n7us
Which object is completely opaque?
a:wooden spoon
b: drinking glass
c: wax paper
d:window
Answers: 2
Physics, 21.06.2019 13:00
Explain using examples, what is simple harmonic motion and why it is an important area of study in physics.
Answers: 3
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 14:30
70 give a real life example showing how sensory neurons work with the motor neurons
Answers: 2
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
Answers: 1
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