Milwaukee is 121 mi (air miles) due west of grand rapids. maria drives 255 mi in 4.75 h from grand rapids to milwaukee around lake michigan. find
a. her average driving speed
b. her average travel velocity.

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

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

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.