In a lab experiment, you are given a 1 meter ruler, a pivot triangle and 3 equal masses of 10g each as shown in figure above. Arrange the position of each mass so that the system is in equilibrium. Draw
again the diagram (Figure 4) to locate the position of each mass hang on the ruler, sketch and label
the free body diagram, and show by calculation to prove that the system is equilibrium. (Let the mass
of the metre ruler = 58)

Asatellite that goes around the earth once every 24 hours iscalled a geosynchronous satellite. if a geosynchronoussatellite is in an equatorial orbit, its position appearsstationary with respect to a ground station, and it is known as ageostationary satellite find the radius rof the orbit of a geosynchronous satellite that circles the earth.(note that ris measured from the center of the earth, not the surface.) you mayuse the following constants: the universal gravitational constant g is 6.67 \times 10^{-11}\; {\rm n \; m^2 / kg^2}. the mass of the earth is 5.98 \times 10^{24}\; {\rm kg}. the radius of the earth is 6.38 \times 10^{6}\; {\rm m}.