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a centrifuge in a medical laboratory rotates at an angular speed of 3750 rpm revolutions per minute when switched off
a muon is formed high in the earths atmosphere and travels at a speed 09 c with respect to the earth it travels for 20
two students are on a balcony 214 m above the street one student throws a ball vertically downward at 133 ms at the
in the final part of its life cycle a particular rotating spherical star expands to four times its normal diameter
a 574-kg skateboarder starts out with a speed of 204 ms he does 104 j of work on himself by pushing with his feet
bob and ray push on a door from opposite sides they both push perpendicular to the door bob pushes 063 m from the door
john and joan walk in opposite directions around a circular path starting from the same point the path has a radius of
a pulsar is a rapidly rotating neutron star the crab pulsar is located in the crab nebula in the constellation taurus
a car starts a race from rest on a circular track and has a tangential speed of 43 ms at the end of the third lap the
a person stands on the edge of a cliff she throws three identical rocks with the same speed rock x is thrown vertically
a solid cylinder of mass m 259 kg is released from rest at the top of an incline of height h 199 m and rolls without
an ultracentrifuge having a diameter of 163 cm produces an extremely large acceleration of 441e5 ms2 a 251 g sample is
two runners are racing to a turn-around point 6 km away and then back to the starting point the first runner maintains
the drag force acting on a sphere moving through a liquid like water is given by f6vr where f is the drag force v is
a 5kg box is pushed across a level floor with a net force of 50 n in the direction of the displacement of 10m what is
a woman of massm501kg sits on the left end of a seesaw-a plank of lengthl399m-pivoted in the middle as shown in the
a 10000 kg train car a traveling at a speed of 24 ms strikes an identical car b initially at rest if the cars lock
a couple is traveling by car 40 kmh down a straight highway they see an accident in the distance so the driver applies
to warm up for a match a tennis player hits the 560 ball vertically with her racket if the ball is stationary just
force f -10 n 10 n acts on a particle with position vector r 50 m 50 m a what is the torque on the particle about
a siren emitting a sound of frequency 1200 hz moves away from you toward a cliff at a speed of 16 ms what is the
a rectangular fish tank measuring 085 m times 045 m is filled with water to a height of 59 cm what is the gauge
describing bowlbys ethological theory of attachment and trace the development of attachment during the first two
a black furnace of surface area a 30 m2 is fired up its outside temperature reaches 450oca calculate the power in
post a null hypothesis that would use a t test statistical analysis use the same hypothetical situation taken in the