One of these
QUESTION 2
1
Select all that are true based on Special Relativity.
It is possible to go forwards in time
It is possible to go backwards in time
Time is constant (a second for me is always the same as a second for you).
If you look at a clock going past you really fast, then it looks to be ticking slower
If you look at a clock going past you really fast, then it looks to be ticking faster
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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)