C) do you think hooke’s law would still hold if the spring had no intial mass (and hence force) on it so that its coils touched or if the spring was stretched a lot by the addition of more and more masses?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Which fators influence ocean currents

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