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A weight of 10 N is dropped from a height of 1.2 m onto a spring (cushion pad). If the spring has an elastic force constant of 40 N/m by what amount will the spring compress? (no, this is not a simple F=kX problem, think energy and work)
An ideal spring with a spring constant of 25.0 N/m is suspended vertically. A 1.00 kg object is attached to the unstretched spring and released. It then performs oscillations in the form of simple harmonic motions. Determine the magnitude of the o..
In reaching her destination, a backpacker walks with an average velocity of 1.05 m/s, due west. How far did she walk
Four 25 kg children are sitting on the edge of a 3 m radius 80kg merry go round that is shaped like a disk. Its frequency is 1/3 Hz, What is the moment of inertia before and after
On a pleasure cruise a boat is traveling relative to the water at a speed of 5.33 m/s due south, What is the magnitude of the passenger's velocity relative to the water
A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, Find the translational speed at the top
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.7×1011W. Determine the rms value of the electric field
a car starts from the bottom of a hill with a slope of 10 degrees and travels with a constant velocity of 20m/s when its engine fails. Calculate the total time the car is in motion
Two identical guitar strings are prepared such that they have the same length (2.43 m) and are under the same amount of tension. find the wave propagation speed on the guitar strings
An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, Find the average angular speed and the radius of the track
question calculate the wavelength of the emitted photon when an electron drops between the n 4 and n 3 energy levels
A rotating uniform cylindrical platform of mass 250kg and radius 5.9m slows down from 4.0rev/s to rest in 17 s when the driving motor is disconnected. Estimate the power output of the motor
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