The position of a particle moving along X - axis depends on time according to the equation, x = 3t2 - t
3 – 4t + 5 , where x is in meter and t is in second
Calculate velocity and acceleration at t = 0, t = 2 and t = 4seconds
b. Calculate the average velocity between t = 2 and t = 4 seconds
c. Calculate average acceleration between t =1 and t =3 seconds

Explain what happens at the saturation point when adding salt to water at room temperature.

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.

Do you think you could give me the answers to #29?