The equation of motion for a particle moving along the y-axis is given as y(t) = 3t2 - 6t + 2 for t2 0. Part A: Find the velocity and acceleration functions. (10 points)
Part B: Describe where the particle changes direction and the intervals where the particle speeds up or slows down. (20
points)

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Time remainin52: 42the chart shows data for a moving object.which conclusion is best supported by the information inthe chart? time (s)velocity (m/s