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One billiard ball is shot east at 2.4 m/s . A second, identical billiard ball is shot west at 0.90 m/s . The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90 degrees and sending it north at 1.43 m/s .
A. What is the speed of the first ball after collision?
B.What is the direction of the first ball after the collision? Give the direction as an angle south of east.
An insect 1.1 tall is placed 1.3 beyond the focal point of the objective lens of a compound microscope. The objective lens has a focal length of 17 , Where is the image formed by the objective lens
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Four identical particles each have charge q and mass m. They are free from rest at the vertices of a square of side L. How fast is each charge moving when their distance from center of the square doubles.
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a van de graaff machine has a dome of radius 2.0 m. a motor causes a charged insulating belt to travel continuously
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A handball of mass 0.10 kg, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19m/s. What is the change in the momentum of the ball.
A car drives north at 46 for 10 and then turns east and goes 5 at 60. At last, it goes southwest at 30 for 6.0. What is the average velocity.
you are given vectors a? 5.1 i? 6.6 j and b? - 3.6 i 7.1 j. a third vector c? lies in the xy-plane. vector c? is
Four moles of an ideal gas undergo a reversible isothermal expansion from volume V1 to volume V2 = 5V1 at temperature T = 400K. Find the entropy change of the gas
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