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When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 10.7 Hertz. When another object of mass m2 is hung on the spring along with the first object, the frequency of the motion is 4.50 Hertz. Obtain the ratio m2/m1 of the masses.
A 10 g bullet traveling at 430m/s strikes a 13kg , 1.1-m-wide door at the edge opposite the hinge, What is the angular velocity of the door just after impac
A conductor in the shape of a spherical shell of radii 2,5cm is charged to 20 microcoloumbs. How much work is required to move a 10 microcoloumb charge from the position (0.20) to the point (10,10)
An iron tower in is 39 meters tall on a cold day, What is the HEIGHT of the tower on a hot day when the temp is 31.5 degrees Celcius
A long, straight wire carrying a current of 5.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 5.00 m
a 9 kg bar 1.5 m long is set up to rotate about its center (the dark circle). Each arrow represents a force that is being applied to the bar. FA = 15 N, FB = 28 N, FC = 35 N, & FD = 19 N. Determine the angular acceleration of the bar
a positron is a particle with the same mass and magnitude charge as an electron but a positron has a positive charge.
A 0.13 m segment of wire lies along the y-axis and carries a current of 3.8 A in the negative y direction. What is the force (magnitude and direction) on the segment of wire due to the magnetic field
a 8.5-kg box is being lifted by means of a light rope that is threaded through a single light frictionless pulley that
The wavelength of the laser beam used in a compact disc player is 549 nm. Estimate the spacing between the slits of the grating
a person takes a trip driving with a constant speed of 95.5 kmh except for a 22.0-min rest stop. the persons average
What would be the minimum width of the mirror if you are willing to accept that you must use two eyes to see the full width of your face
A baking dish is removed from a hot oven and placed on a coolingrack, What was the net radiant power of the baking dish when it was first removed from the oven
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