Accurately explain why the light is bending in these pictures. Use the following terms in your medium, density of the
medium, refract or refraction, incidence ray, speed of wave, index of refraction

(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.)

In what direction does an applied force move an object

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?