a converging spherical mirror of radius of curvature 20. ocm is used as a shaving mirror. what is the distance of an object form the mirror if an upright image three times the height of the object produced? draw a ray diagram to illustrate your answer.​

(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 part of the ear is names after tools, such as the hammer and the anvil?

The law of reflection states that the angle of reflection is equal to the angle of