Physics, 17.10.2019 19:50 sarahfsakrani
Tonya picks up a leaf from the ground and holds it at arm’s length. she lets go, and the leaf falls to the ground. what force pulled the leaf to the ground?
Answers: 2
Physics, 21.06.2019 18:30
What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.
Answers: 1
Physics, 22.06.2019 05:10
Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature
Answers: 2
Physics, 22.06.2019 06:00
Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves
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
Tonya picks up a leaf from the ground and holds it at arm’s length. she lets go, and the leaf falls...
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