Physics, 11.07.2019 14:00 aderahd7352
Aball is launched with initial speed v from the ground level up a frictionless hill. the hill becomes steeper as the ball slides up; however, the ball remains in contact with the hill at all times. using conservation of energy, find the maximum vertical height hmax to which the ball will climb. express your answer in terms of v and g.
Answers: 2
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
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 14:30
What was the first instrument to ever record an earthquake?
Answers: 1
Physics, 22.06.2019 16:30
Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?
Answers: 1
Aball is launched with initial speed v from the ground level up a frictionless hill. the hill become...
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
English, 16.12.2020 06:10
Chemistry, 16.12.2020 06:10
Chemistry, 16.12.2020 06:10
Social Studies, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10
Mathematics, 16.12.2020 06:10