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A blood sample is located in a centrifuge of radius 10 centimeter. The mass of a RBC is 3.0 x 10^-16 kilogram, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 x 10^-11 Newton. Determine at how many revolutions per second should the centrifuge be operated?
Determine the magnitude and direction of impulse delivered to the ball by the floor.
In a playground, there is a small merry-go-round of radius1.20 m and mass 120 kg. Calculate the rotational inertia of themerry-go-round about its axis of rotation
A 390 g glass coffee cup is at a room temperature of 20?C. It is then plunged into hot dishwater at 80 ?C. how much heat does the cup absorb
light is incident of the surface of metallic sodium whose work function is 2.3 ev. the maximum speed of the
A 9.8 kg board is wedged into a corner and held by a spring at a 50.0° angle, Find the amount by which the spring is stretched from its unstrained length
A 16.0 m uniform ladder weighing480 N rests against a friction less wall. The ladder makes a 61.0° angle with the horizontal. Discover the horizontal and vertical forces the ground exerts on the base of the ladder when an 840 N fire fighter is 4.20 m..
A fireman 46.0 m away from aburning building directs a stream of water from a ground-level firehose at an angle of 30.0° above the horizontal. If the speed of thestream as it leaves the hose is 40.0 m/s, at what height will the stream of water strike..
The temperature of the Sun's photosphere is. Isotopes of a particular element in the periodic table have which nuclear property in common. Granulation on the surface of the Sun is caused by
A uniform 1.9-kg rod that is 0.78 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
A horizontal block-spring system undergoes simple harmonic motion with amplitude A. Does the total energy change if the mass is doubled but amplitude is not changed? Briefly justify your answer
what would be the appearance of the velocity-time curve if the falling body were so light that the effect of air
Calculate the ratio of the intensity of an earth quake wave as it passes a point 27 kilometer from the source to the intensity as it passes a point 15 kilometer from the source
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