The rotor of a "centrifuge" (originally at rest) is accelerated with an angular acceleration a for a time interval At, left at constant speed for a time interval Al, and then slowed down at a constant angular acceleration - until it stops rotating. What is the total angular displacement during this process

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing