7. the initial velocity of a projectile has a horizontal component equal to 5 m/s and a vertical
component equal to 6 m/s. at the highest point of the projectile’s flight, what is
a. the horizontal component of its velocity
b. the vertical component of its velocity
c. explain

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

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.