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The coefficient of kinetic friction between a refrigerator (mass 100kg) and the floor is 0.20, and the coefficient of static friction is 0.25. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration be?
The sun is 150,000,000 km away. The mass of the sun is 2x1030 kg, the mass of the earth is 6x1024 kg. What is the torque of the earth on the sun
The electric field of an electromagnetic wave in a vaccum is Ey = (25 V/m) sin ((3.78 x 10^8) x - wt), What is the wave's magnetic field amplitude
A 900 kg car enters an unbanked curve with a radius oof 75.0 m. The coefficient of static friction between the tires and roadbed iis .20. what is the maximum speed with which the car can safely negotiate
Two identical 0.12 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, What is the final vibrational energy of the real system
The centers of a 15kg lead ball and a 50g lead ball are separated by 10cm, What is the ratio of this gravitational force to the weight of the 50g ball
Field Retards Motion An electron with a speed of7.50 multiplied by 108 cm/s enters an electric fieldof magnitude 1.00 multiplied by 103 N/C, traveling along thefield in the direction that retards its motion.
A sprinter of mass 71.4 kg runs at a constant speed of 11.1 m/s in a straight line. Find the extra force the sprinter must exert on the ground to round a curve of radius 10.3 m
A 7.9-N force pulls horizontally on a 1.6-kg block that slides on a smooth horizontal surface. What is the acceleration of the blocks
A 120 granite cube slides down a 40 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 290 steel cube at rest. How high above the table should the granite cube be released to give steel cube a spe..
Find the coefficient of friction between crate and floor
A constant force is applied to an object, causing the object to accelerate at 6 m/s^2?, What will the acceleration be if the force is halved
A block is given an initial velocity of 7.0 m/s up a frictionless 24 degree incline. find the block's acceleration as it slides up the plane
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