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A block is weighing 100 Newton is pushed on a horizontal table at constant velocity by a 25 Newton force, oriented parallel to the table surface. Find coefficient of kinetic friction between book and table?
You are at a rock concert, and the sound intensity reaches levels as high as 120 dB. Calculate the amplitude of this oscillating force
A thin, circular disk of radius R = 30 cm is oriented in the yz-plane with its center as the origin. Calculate the magnitude of the electric field due to the disk at the point x = 15 cm along the x-axis
What types of lifestyle changes will be brought about by living in a house whose space heating and hot water needs are supplied almost completely by the sun.
a straight wire lies along the y-axis initially carrying a current of 10 a in the positive y-direction. the current
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this
A 507g mass oscillates with an amplitude of 13.0 cm on a spring whose spring constant is 23.0 N/m. Determine the total energy
The components of velocity of an object moving in two dimensions are 40 m/s westward, and 28 m/s southward. What is the object's heading, in degrees
A certain double-pane window consists of two glass sheet, each 80 cm x 80 cm x 0.30 cm, separated by a 0.30 cm stagnant air space. How much heat passes through the window each second
Consider a system of three noninteracting identical bosons that move in a common external one-dimensional harmonic potential. Find the energy levels and wave functions of the ground state
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance of 1 m from the end of the track after falling the vertical distance 1.25 m from the end of the track.
The angular momentum of the electron as it moves around the center of the circle is 1.40 × 10-25J•s.Find the radius of the circular path.
A 539 Hz sound wave travels through a substance. What is the speed of sound in the substance
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