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A small 0.500-kg object moves on a frictionless horizontal table in a circular path of radius 1.00 m. The angular speed is 6.28 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. Someone under the table begins to pull the string downward to make the circle smaller. If the string will tolerate a tension of no more than 105 N, what is the radius of the smallest possible circle on which the object can move?
acA block lies on a plane which is inclined at 22 deg to thehorizontal. The coefficient of kinetic friction between blockand plane is %u03BCk = 0.17. compute the acceleration of the block
In a closed piston-cylinder device, an isothermal expansion of anideal gas from 1.5 m3 to 4.7m3 occurs at a temperature of 99oC. How much heat is need to complete the process
find the magnitude of the electric field at a point midway between two charges 24.3 times 10-9 c and 75.5 times 10-9 c
A 30 microF capacitor and a 5.45 miliH inductor are connected in series with an open switch. What is the angular frequency of the charge oscillations in the capacitor
The maximum speed of a 2.6-kg mass attached to a spring is 0.74 m/s, and the maximum force exerted on the mass is 11 N. What is the force constant of the spring
In the "World's Strongest Man" competition, one event is to pull a 2370 kg truck for 5 m. What is the least amount of force
After 10.7 s, a spinning roulette wheel has slowed down to anangular velocity of 2.25 rad/s. Determine the angular displacement of the wheel
The rotor is an amusement park ride where people stand against theinside wall of a cylinder. Once the cylinder is spinning fastenough, the floor drops out. if the coefficient of friction is 0.38and the cylinder has a radius of 2.4 m what is the minim..
A 2000kg car traveling at a speed of 12m/s skids to a halt on wet concrete where ?k = 0.50. How long are the skid marks
a woman walks 250m in the direction 300 east of north then 175m directly east. find a the magnitude and b the angle of
A particle with a charge of -1.5uC and a mass of 2.5x10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 42 m/s. The only force acting on the particle is the electric force. (a) Which point is at..
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
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