Aperson wants to buy a spherical mirror that increases two times her face when she's 50 centimeters from it.

what type of mirror and what is the curvature angle?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.