Q. Suppose the x-velocity of the car at any time t is given by the equation = 60 / + (0.5 3 ) 2 (a) Find the change in x-velocity of the car in the time interval 1 s to 3 s. (b) Find the average x-acceleration in this time interval.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Write a polynomial function with the given zeros x= -1,0,2show your work

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy