9. a ball with a mass of 1.2x10^-2 kg is swung in a horizontal circle at the end of a string. the string is 1.5 m long and the ball revolves at a
speed of 3.3 m/s.
a. what force does the string exert on the ball?
b. what force does the ball exert on the string?

will mark brainliest

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

What is the equation for electrical work?

The ph is the a.independent variable b.the dependent variable c.control group