Physics, 29.06.2019 10:30 20copstevens
What type of energy is produced by the movement of electrons? select one: a. chemical energy b. electrical energy c. nuclear energy d. radiant energy
Answers: 2
Physics, 22.06.2019 11:00
What is the measurement of how fast an object moves relative to a reference point?
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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 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 22.06.2019 17:30
Heterogeneous mixture with larger particles that never settle is
Answers: 2
What type of energy is produced by the movement of electrons? select one: a. chemical energy b. el...
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