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A student has six textbooks, each 4.0 cm thick and 30 N inweight. What is the minimum work the student would have to do to place the books in a vertical stack, starting with all the books onthe surface of the table?
A diver springs upward with an initial speed of 1.9 m/s from a 4.0-m board. What is the highest point he reaches above the water
Two 53 {rm g} blocks are held 30 {rm cm} above a table. One of them is just touching a 50-long spring. The blocks are released at the same time. The block on the left hits the table at accurately the same instant as the block on the right first comes..
A plane polarized EM wave propagates through a polymer. Such waves obey a similar wave equation to that found for free space. The wave has a magnetic field vector, B=[(-1.2 i) x sin(ky wt)] microT (micro telsa) , with frequency f=7.61×10^(14) Hz and ..
A father racing his son has 2/3 the kinetic energy of the son who has 2/3 the mass of the father. What is the origianal speed of the father
A camera takes a perfectly exposed picture when the lens diaphragm is set to f/4 and the shutter speed is 1/250 s, what should the new shutter speed be so that the exposure is still correct
A small earthquake starts a lamppost vibrating back and forth. find the time constant for the damping of the oscillation
The E string of a violin has a lenght of 0.33 m and a fundamental frequencynof 659 Hz. The tension of the string is 55N, What is the wave velocity of the string
A 44-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. determine her altitude as she crosses the bar
A 0.70-kg mass attached to a vertical spring of force constant 140N/m oscillates with a maximum speed of 0.40m/s, Find the maximum magnitude of the acceleration
A satellite circles the earth in an orbit whose radius is 2.78 times the earth's radius. What is the period of the satellite
Unpolarized light with an intensity of 650 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
A total Charge of 0.696uC is distributed uniformly throughout an entire region, giving a charge per volume of 348uC/m3. A Gaussian surface encloses 0.174uC of that charge. What is the volume of that entire region?
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