Answers: 2
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 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
Physics, 23.06.2019 02:30
Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?
Answers: 3
Physics, 23.06.2019 03:00
0.5 kg of silver increases temperature from 0 celsius to 7 celsius when heat is added how much heat energy produced this change in temperature
Answers: 1
You are driving home from school steadily at 95 km/h for 180km. It then begins to rain and you slow...
Mathematics, 19.03.2021 19:50
Mathematics, 19.03.2021 19:50
History, 19.03.2021 19:50
History, 19.03.2021 19:50
Mathematics, 19.03.2021 19:50
Social Studies, 19.03.2021 19:50
English, 19.03.2021 19:50
Physics, 19.03.2021 19:50
Mathematics, 19.03.2021 19:50
History, 19.03.2021 19:50