A ball thrown vertically from ground level is caught 3.0 s later when it is at it's highest point by a person on a balcony which in 14m above the ground. Determine the the initial speed of the ball.​

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Current from a charged capacitor lights a bulb. as time goes on the brightness of the