When air moves from a region of high pressure to a region of low pressure, with no addition or subtraction of heat:
a. it expands
b. it undergoes adiabatic heating.
c. it contracts.
d. its molecules speed up

True or false: the revolution of the earth creates day and night as it rotates around the sun

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)