If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an rc discharge through a flash tube can limit blurring. assuming 1.00 mm of motion during one rc constant is acceptable, and given that the flash is driven by a 503 µf capacitor, what is the resistance in the flash tube?

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)

What kind of simple machine is a catapult?

What is the major limitation to the light microscope?