Calculate the magnitude of the linear momentum for the following cases.

(a) a proton with mass 1.67 10^-27 kg, moving with a speed of 4.80 10⁶ m/s (b) a 12.5-g bullet moving with a speed of 500 m/s (c) a 72.0-kg sprinter running with a speed of 12.5 m/s (d) the Earth (mass = 5.98 10²⁴ kg) moving with an orbital speed equal to 2.98 10⁴ m/s.