Physics, 23.11.2020 01:30 mikecool224
Is true or false When they can move freely, the magnets align in an east-west direction.
Answers: 2
Physics, 22.06.2019 11:00
Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good
Answers: 1
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 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
Is true or false When they can move freely, the magnets align in an east-west direction....
Mathematics, 26.01.2021 18:20
History, 26.01.2021 18:20
Health, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Computers and Technology, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20
Physics, 26.01.2021 18:20
History, 26.01.2021 18:20
Mathematics, 26.01.2021 18:20