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Consider a merry-go-round that has the form of a disc with radius 5.5 m and mass 130 kg. If five children, each of mass 20 kg, sit on the outer edge of the merry-go-round, what is the total moment of inertia?
kg · m2
Two cesium-133 atomic clocks differ by one second in 6000 years. Assume one of the clocks gains one second in six thousand years, approximately what is the change in the number of oscillations of the light each second?
Point charges q1=? 4.10nC and q2=+ 4.10nC are separated by distance 3.20mm , forming an electric dipole, What is the direction of the dipole moment
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward), What is the horizontal displacement of the rocket when it returns to y=0
A charge of -2.87 ?C is fixed in place. From a horizontal distance of 0.0470 m, a particle of mass 7.43 x 10-3 kg and charge -9.14 ?C is fired with an initial speed of 60.0 m/s, How far does the particle travel before its speed is zero
A baseball player hits a double and ends up on second base. A baseball "diamond" is a square, each side of length 27.4 m, with home plate and the three bases on the four corners. What is the magnitude of the player's displacement?
You have a grindstone ( a disk) that is 80.0 kg, has a .349-m radius, and is turning at 104.0 rpm, Calculate the angular acceleration of the grindstone
Two identical 10 g iron springs, except that one has been wound using work W, are dropped into equal volumes of 15M HC1 in two identical constant volume calorimeters, that are adiabatically insulated. The HC1 will dissolve iron springs. What differen..
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. determine the current in the primary
If each rock strikes the fixture travelling at 10.0 {rm m}/{rm s} horizontally and rebounds at 2.00 {rm m}/{rm s} backwards, how high above the lowest point does collision make your light fixture swing?
The primary coil of an ideal transformer has 710 turns, and the secondary coil has 190 turns. find the output current of the secondary coil
The two spheres are then connected by a thin conducting wire, What is the charge on the first sphere after the two spheres are connected by the wire
After going through a bad break-up with your significant other you end up drinking half a case of beer. The next day you decide the cloud of despair must be fought with exercise. How much longer will it take you to burn off the calories of the bee..
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