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To measure the static friction coefficient between a 3.48-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 468 N/m) is attached to the block. Someone pushes on the end of the spring in a direction perpendicular to the wall until the block does not slip downward. If the spring in such a setup is compressed by 0.0499 m, what is the coefficient of static friction?
The coefficient of kinetic friction between each brake pad and the rim is μk = 0.85. What is the magnitude of normal force that each brake pad applies to the rim.
A certain defibrillator sends 0.12 C of charge through the heart. How much energy is released when it discharges
Two blocks made of different materials, connected by a thin cord, slide down a plane ramp inclined at an angle 32 degrees to the horizontal. Determine the tension in the cord
A cylinder 25 cm long is partly filed with water. A loudspeaker held over the cylinder causes the air column to resonate, what is the hight of the water in the cylinder
Consider two identical particles of spin 1/2 that are confined in a cubical box of side L. Find the energy and the wave function of this system in the case of no interaction between the particles.
A soccer player kicks the ball toward a goal that is 29.0m in front of him. Find the speed of the ball when the goalie catches it in front of the net
Each cable has a length of l = 2.70 -{rm m}. What is the tension T in each of the cables? Use 9.80- {rm m/s}^2 for the magnitude of the acceleration as a result of gravity.
Boat sails at a rate of 5.0 m / s relative to the sea. He is aiming directly north, What will be the direction of the boat
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60 percent of the energy usage, what altitude change can a rider achieve while driving in hilly terrain, if the rider and scooter..
Two identical +9.5uC point charges are initially 3.5cm from each other. If they are released at the same instant from rest, hoe fast will each be moving when they are very far away from each other? suppose they have identical masse of 1mg.
A sheet of glass is coated with a 500nm -thick layer of oil (n = 1.42). What is the color of reflected light
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
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