Answers: 3
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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 12:00
If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?
Answers: 1
Dan is gliding on his skateboard at 4.00m/s . he suddenly jumps backward off the skateboard, kicking...
Biology, 06.05.2021 23:00
Chemistry, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Law, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Mathematics, 06.05.2021 23:00
Chemistry, 06.05.2021 23:00