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Calculate the centripetal acceleration of a point 7.50cm from the axis of an ultracenteifuge spinning at 75000rpm. Determine the ratio of this acceleration to that of gravity for comparison's sake. Show work and formulas for credit.
A microscope has an eyepiece of focal length 2.10 cm and an objective of focal length 4.10 cm. How far from the eyepiece is the image formed by the objective
A 9.0 cm-diameter disk emits light uniformly from its surface. 20 cm from this disk, along its axis, is an 7.0 cm-diameter opaque black disk; the faces of the two disks are parallel. 20 cm beyond the black disk is a white viewing screen. The light..
A water hose is used to fill a large cylindrical tank of diameter D and height 2D. For what range of launch speeds will the water enter the tank
An electron and a proton are each accelerated through a potential dierence of 10.0 MV. Are the particles moving at relativistic speeds
A truck covers 40.01 m in 7.615 s while smoothly slowing down to final speed 1.40 m/s. What is the original speed and what is the acceleration.
A football kicker can give the ball an initial speed of 27 m/s. He is 48 m from the goalpost which has a crossbar 2.72 m high. What is the smallest angle of elevation that he can kick the football and score a field goal
three charged particles with q1 -50 nanocoulomb q2 50 nanocoulomb q3 30 nanocoulomb are placed in a triangle. q1 and q2
A 2000 kg car rounds a circular turn of radius 20 m. If theroad is flat and the coefficient of friction between tires and roadis 0.70, how fast can the car go without skidding
Suppose you point a pinhole camera at a 15-m-tall tree that is 75m away. If the film is 22cm behind the pinhold, what will be the size of the tree's image on the film
Suggest a proper answer with proof for if frequency of incident radiation is doubled, what will be the effect on maximum kinetic energy of photo electrons
Two 500 g block of wood are 2.0m apart on a frictionless table. A 10g bullet is fired at 400 m/s towards the blocks. What is the speed of the second block after the bullet stops
a major-league pitcher can throw a baseball in excess of 40.8 ms. if a ball is thrown horizontally at this speed how
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