during a soccer game, the goalie kicks the ball out toward the other end of the field. it travels 60 yards in 8 seconds before landing on the ground. what is the velocity of the ball?

Phase changes are chemical changes. true or false

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward