Three balls with masses of 1.0 kg, 1.0 kg, and 4.0 kg are located at coordinates (8.0m,6.0m), (7.5m,5.0m), and (2.5m,4.5m), respectively, and are connected by massless rods.1.what is the x-coordinate of the center of mass? 2.for the three balls above, what is the y-coordinate of the center of mass?

How does the formation of intrusive and extrusive igneous rocks differ?

When a pendulum is held high and taut and then is released, the pendulum begins to swing. what’s the correct order of the energy transformations in this example? (pe stands for potential energy.)

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.