The electrons can be modeled as forming a uniform shell of negative charge. what net electric field do they produce at the location of the nucleus?

Why is metal often used for cooking pan?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

(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.)