19. How many revolutions per second are needed for a centrifuge to produce an acceleration of...
What angular velocity (in revolutions/second) is needed for a centrifuge to produce an acceleration of 1,000 times gravity at a radius arm of 15.0 cm?
A sample of blood is placed in a centrifuge of radius 12.0 cm.
The mass of a red blood cell is 3.0 ✕ 10-16 kg, and the
magnitude of the force acting on it as it settles out of the plasma
is 4.0 ✕10-11 N. At how many revolutions per second
should the centrifuge be operated?
rev/s
A sample of blood is placed in a centrifuge of radius 12.0 cm. The mass of a red blood cell is 3.0 x...
A sample of blood is placed in a centrifuge of radius 14.0 cm. The mass of a red blood cell is 3.0 ✕ 10-16 kg, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 ✕ 10-11 N. At how many revolutions per second should the centrifuge be operated? ______rev/s
NASA’s Ames research center in Mountain View, California has a centrifuge built to simulate high-g environments. It spins horizontally in uniform circular motion, with the payload (possibly a human!) in a box at the end of a 29-foot arm. Its maximum rotation rate is 50 revolutions per minute (rpm). (a) What is the centripetal acceleration experienced by an object in the payload box when it is spinning at its maximum rate? (b) How many gs is this acceleration, and could...
A flat circular coil of 1 cm radius is rotated at 10 revolutions per second about an axis that is perpendicular to a uniform magnetic field of magnitude 2.5 T. How many turns are required in the coil to generate a peak voltage of 750 mV? a) 2 turns b) 5 turns c) 8 turns d) 15 turns e) 20 turns
A flat circular coil of 1 cm radius is rotated at 10 revolutions per second about an axis that is perpendicular to a uniform magnetic field of magnitude 2.5 T. How many turns are required in the coil to generate a peak voltage of 750 mV? a.) 2 turns b.) 5 turns c.) 8 turns d.) 15 turns e.) 20 turns
Steve was subjected to accelerations in a horizontal "centrifuge". It is considered that such a device has a radius of 5.0 m and can generate a centripetal acceleration equivalent to 7 times the average gravitational acceleration on Earth. a) For this maximum acceleration, what is the modulus of the astronaut's speed along the circular path? b) At how many revolutions per minute should the rotation occur to achieve such acceleration? c) What is the period of this rotation?
A flat circular coil of 1 cm radius is rotated at 10 revolutions per second about an axis that is perpendicular to a uniform magnetic field of magnitude 2.5 T. How many turns are required in the coil to generate a peak voltage of 750 mV?
Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 20.0 s to speed up from rest to its top speed of 1 rotation every 1.20 s. The astronaut is strapped into a seat 7.20 m from the axis. Part A What is the astronaut's tangential acceleration during the first 20.0 s? Express your answer with the appropriate units. Value Units Submit Request Answer Part B How many g's of acceleration does the astronaut experience...
a disck initially stationary experiences an angular acceleration of 0.2 rad/s^2. how many revolutions does the disck undergo in the 10 seconds after the acceleration is applied? a- 0.1 b- 0.80 c- 1.6 d- 8.0 e- 10