In the first four hours of his ride, what was his average speed?

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2