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The oscillations of an actual spring-block system slowly reduce in amplitude and finally the system comes to a halt. What happens to the energy of the system? Does this not violate the law of conservation of energy?
A simple pendulum is 5.00 m long. (a) What is the period of simple harmonic motion for this pendulum if it is located in an elevator accelerating upward at 7.00 m/s2? s
A 18.0cm × 18.0cm square loop of wire lies in the xy-plane with its bottom edge on the x-axis. The resistance of the loop is 0.530?. What is the size of the induced current in the loop at t = 0.550s
A transformer has 380 primary turns and 1220 secondary turns. The input voltage is 120 V and the output current is 15.0 A. What is the output voltage and input current
A shopper pushes a cart 23 m south down one aisle and then turns 90.0° west and moves 23 m. He then makes another 90.0° turn and moves 15 m. What is the largest possible displacement of the shopper
What is the magnitude of the positive and negative charge? Two conducting spheres have identical radii. Initially they have charges of opposite sign and unequal magnitudes with the magnitude of the positive charge larger than the magnitude of the ..
A ball is thrown directly downward with an initial speed of 8.50 m/s, from the height of 29.5 m. After what time interval does it strike the ground.
A CD has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 17 rad/s in 0.85 s. determine the net torque acting on it
Sam, whose mass is 80kg , takes off across level snow on his jet-powered skis. The skis have a thrust of 250N and a coefficient of kinetic friction on snow of 0.1, What is Sam's top speed
A very thin sheet of glass (n=1.5) floats on the surface of water (n=1.33). When illuminated with white light at normal incidence, What is the thickness of the glass
An initially motionless car of mass 1000kg slides down from a height on a frictionless roller coaster track. What was the minimum height from which it was released
Compute the mean and maximum velocities for a liquid with a flow rate of 20 L/min in a 1.5-in nominal diameter sanitary pipeline
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass, how fast is the person running
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