The shape and appearance of the arrangement of atoms in a compound

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

What is an electric motor? explain its operation. 2-3 sentence