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A uniform circle of mass m1 = 3.10 kg, a uniform triangle of mass m2 = 1.30 kg, and a uniform square of mass m3 = 5.50 kg are placed in the xy plane as shown in the figure below. What are the x and y coordinates of the center of mass of the three-object system?
Assuming normal temperature and pressure outside, and normal pressure inside, what must be the inside temperature (in Celsius) if the hot air balloon has diameter 17 meters and carries 446.3 kg load? (Except the mass of air inside, everything else is..
A man standing1.54m in front of a shaving mirror produces an inverted image20.0cm in front of it. How close to the mirror should he stand
A ski tow operates on a 15.0degrees slope of lenth 300m. The rope moves at 12.0km/h and provides power for 50 riders at onetime, Estimate the power required to operate the tow
A block of weight w = 25.0N sits on a frictionless inclined plane, which makes an angle theta = 29.0^\circ with respect to the horizontal, as shown in the figure. (Figure 1) A force of magnitude F = 12.1N , applied parallel to the incline, is just..
Why is it more difficult to walk on a sandy road than on a concrete road? Please give explanation.
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
A certain concrete will support a maximum compressive stress of 1.28 107 N/m2 before being crushed. A column of uniform width is to be made with this concrete. How tall can the column be if the stress in it at any point is not to exceed one half t..
A mass of 180g is held by a horizontal spring of constant 22 N/m. It is displaced from its equilibrium position and released from rest. What is the magnitude of initial displacement
We have a parallel plate capacitor with two plates containing charges +Q and -Q a distance d = 2.00 cm apart. We release a proton from rest at point A, just above the lower plate. At point B, just before the proton strikes the upper plate, the pro..
A 4.57 MeV alpha particle from radium226Ra decay makes a head-on collision with a uranium nucleus. A uranium nucleus has 92 protons. What is the force on the alpha particle at the instant when it is at the distance of closest approach?
Diffraction also occurs with sound waves, What isthe angle between the two first-order diffraction minima
Consider a 10kg mass located at (0,0)-the origin-and a 5kg mass located at (20,0). (Be careful to locate these points in there proper place on the cooridinate system! Distance are in meters.) What would be the magnitude of the gravitational force ..
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