What might happen to the mass and/or the distance between two objects to increase the gravitational force of attraction?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm