To keep a conveyor belt moving when it transports luggage requires a greater diving force than for an empty belt. what additional driving force is needed if the belt moves at a constant speed of 1.5 m/s and the rate at which luggage is placed on one end of the belt and removed at the other end is 20kg/s?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

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

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons