Which of these best fits the empty cell in Timothy's model? (2 points) cool, dry air forms clouds
cool, dry air meets warm, moist air
water vapor condenses in clouds
water vapor evaporates from ocean

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600

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