Three particles are placed in the xy plane. A 40-g particle is located at (3. 4) m, and a 50-g particle is positioned at (-2. -6) m. Where must a 20-g particle be placed so that the center of mass of this three-particle system is located at the origin? ​

In physics the desire of an object to keep doing what it is doing is termed?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.