How many millimeters will a 1 meter long aluminum bar extend if it is brought from a field where the temperature is - 21Co to a building where the temperature is +21 Co?

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

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8