The Crawford model calculates the cloudy-sky emissivity based on the solar index as described in Equations (3.7.9) and (3.7.10) in the textbook. Describe how and why clouds change the incoming longwave radiation compared to clear-sky conditions (i. e. increase/decrease). In theory, what is the maximum possible cloudy-sky emissivity based on the Crawford model

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

What is the relationship between the direction of motion of the balloon and the wind currents

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false