How many degrees are there between the direction of motion and the force of
friction?
A. 270<...
Physics, 04.08.2021 01:50 JEThompson6416
How many degrees are there between the direction of motion and the force of
friction?
A. 270
B. 90
C. 180
D.0
Answers: 1
Physics, 21.06.2019 22:00
Which type of microscope would allow the viewer to see ribosomes inside a cell?
Answers: 2
Physics, 22.06.2019 00:30
Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass
Answers: 1
Physics, 22.06.2019 06:30
At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
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
Mathematics, 24.10.2019 04:50
History, 24.10.2019 04:50
Social Studies, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Social Studies, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Mathematics, 24.10.2019 04:50
Biology, 24.10.2019 04:50