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A billiard ball of mass 163 g and radius 3.0 cm starts with a translational speed of 2 m/s at point A on the track as shown in the figure below. If point B is at the top of a hill that has a radius of curvature of 79 cm, what is the normal force acting on the ball at point B? Assume the billiard ball rolls without slipping on the track.
an green hoop with mass mh 2.7 kg and radius rh 0.14 m hangs from a string that goes over a blue soliddiskpulley with
A parallel-plate capacitor has a capacitance of C0 = 3.60pF when there is air between the plates. The separation between the plates is 3.00mm. What is the maximum magnitude of charge that can be placed
The velocity of a ball changes from ‹ 9, ?7, 0 › m/s to ‹ 8.96, ?7.14, 0 › m/s in 0.02 s, What is the rate of change of momentum of the ball
Suppose you decide to travel to a star 85 light years away at a speed that tells you the distance is only 25 light years. How many years would it take you to make the trip
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 7 m and, in starting, rotates according to ? = 0.30t2, When t = 5.0 s, what is the magnitude of the astronaut's linear speed
a beam of accelerated protons from the large hadron collider can be used to spray paint an insulator with protons.
Find the time of flight, the intial speed and the speed and the angle of the velocity vector with respect to thehorizontal at impact.
A river narrows at rapids from a width of 15 meter to a width of only 6 meter. Obtain the speed of water flowing in the rapids
A certain freely falling object requires 1.56 s to travel the last 37.0 m before it hits the ground. From what height above the ground did it fall.
A skier starts from rest at the top of a hill that is inclined at10.4°with the horizontal. The hillside is 245 m long, and the coefficient of frictionbetween snow and skis is 0.0750. At the bottom of the hill, thesnow is level and the coefficient ..
One generator uses a magnetic field of 0.185 T and has a coil area per turn of 0.0405 m2, What magnetic field should be used in the second generator
A 2.50 kilogram workbook or textbook is forced against a horizontal spring of negligible mass and force constant 250 N/m, obtain how far the textbook moves from its initial position
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