Xcm cubic of substance a which has density of 800kg/m cubic is mixed 100cm cubic of water with a density of 1000kg/m cubic . the density of the mixture is 960kg/m cubic. determine the value of x.

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

The two required components for a generator