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The spring shown in the figure is compressed 50 cm and used to launch a 100 kg physics student. The track is frictionless until it starts up the incline. The student's coefficient of kinetic friction on the 30? incline is 0.15
How far up the incline does the student go?
A 110 granite cube slides down a 45 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest. How high above the table should the granite cube be released to give the steel cube a..
An RC circuit with C = 38.8 µF and R = 6.5 has a 27 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. What is the voltage across the capacitor at that time
A pitched baseball of mass .200kg, arives at home plate with a speed of 40m/s and is batted straight back to the picture, determine the work done by the bat on the ball
A 39.00 g ball is fired horizontally with initial speed v_0 toward a 110g ball that is hanging motionless from a 1.00 m-long string. The balls undergo a head-on, perfectly elastic impact, after which the 110 g ball swings out to a highest angle th..
A hook is boxing primarily involves horizontal flexion of the shoulder, while maintaining a constant angle at the below. What is the average speed of the fist during the hook
A bottle with a volume of 194 U. S. fluid gallons is filled at the rate of 1.9 g/min. How long does the filling take
An archer shoots an arrow horizontally at a target 15m away. What was the initial speed of the arrow
An Escort and a Camaro traveling at right angles collide and stick together. What was the speed of the Camaro
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. find the average net force exerted on the all by the cushion
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 445 Hz when the train is approaching him and 418 Hz when the train is receding from him. Using these frequencies, h..
Light is reflected from a glass coffee table. When the angle of incidence is 50.0 °, What is the index of refraction of the glass
A future space station in orbit about the earth is being powered by an electromagnetic beam from the earth. What are the rms values of the electric and magnetic fields
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