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A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g object and release it 3.00m from the table edge. Unfortunately, you push a little too hard. The object slides across, sails off the edge, falls 1.50m to the floor, and lands 25.0cm from the edge of the table.
If the coefficient of kinetic friction is 0.400, what was the object's speed as you released it?
A solenoid 88.0 cm long has a radius of 2.60 cm and a winding of 2000 turns; it carries a current of 3.60 A. Calculate the magnetic field outside the solenoid
A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, Determine the velocity of the 0.300-kg puck after the collision
a ray of light incident upon a mirror makes an angle of 33.9° with the mirror. What is the angle between the incident ray and the reflected ray
Speedboat A negotiates a curve whose radius is 152 m. Speedboat B negotiates a curve whose radius is 204 m. Each boat experiences the same centripetal acceleration. Illustrate what is the ratio vA/vB of the speeds of the boats?
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
Two students, Nora and Allison, are both the same age when Allison hops aboard a flying saucer and blasts off to achieve a cruising speed of 0.830c for 25.5 years round trip
Brain injuries generally occur any time the brain's acceleration reaches 100 g for even a short time, Consider a car running into a solid barrier
Two radio antennas are separated by 2.00 m. Both broadcast identical 750MHz waves. If you walk around the antennas in a circle of radius 10.00 m, how many maxima will you detect.
A 8.05 k? and a 7.05 k? resistor are connected in parallel. This combination is then connected in series with a 2.95 k, what is the maximum voltage that can be applied across the whole network
Two horses pull a large crate of negligible mass at constant speed across a barn floor by means of two light steel cables. What is the work done by each horse if the box is moved a distance of 30 m
If the perceived frequency becomes constant at 440 Hz, what is terminal speed at the paratrooper? Take the speed sound in air to be 343 m/s and assume the paratrooper always remains below the helicopter.
A home run just clears a fence 105 m from home plate. The fence is 4.00 m higher than the height at which the batter struck the ball, At what speed did the ball leave the bat
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