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A 6.00 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.360. Determine the kinetic frictional force that acts on the box when the elevator is accelerating upward with an acceleration whose magnitude is 1.20 m/s^2
The voltage impressed across a circuit is held constant. If the resistance is halved, what change will occur in the current
A large pot is placed on a stove and 1.2 kg of water at 14°C is added to the pot. The temperature of the water is raised evenly to 100°C just before it starts to boil. What amount of heat is absorbed by the water in reaching 100°C
A small electric car overcomes a 250 N friction force when traveling 30 km/h. How much power is dissipated in the coils
A mechanic can apply a force of 240 N to each side of a tire iron a distance of L = 1.98 m apart. What is the net torque
You rev your car's engine to 2600 (). a) If you change the period of the engine to 0.038 , how many rpms is it doing
q1. at an amusement park you went on a ride that malfunctioned. what was the angular displacement of the ride after
A diffraction grating produces a first order bright fringe that is 0.226 m away from the central bright fringe on a flat screen which is 0.675 m away. What is the wavelength of the light shining on the grating
A cylinder of solid material weight 10.5 kg i the air, and 9.00 kg when submerged in water and 3 kg when submerged in another liquid. determine the density of the cylinder
The magnetic fild inside a superconducting solenoid is 4.50 T. The solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. Determind the magnetic energy density in the field
What is the direction of the induced current in a wire loop that is over a magnetic field, in which the magnetic field is increasing but the loop is not moving?
A rear-wheel-drive car supports 44% of its weight on its two drive wheels and has a coefficient of static friction of 0.80. What is the vehicle's maximum acceleration
what is the compressional stress that the arm withstands during the crash?
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