the objective and an eye piece is of an astronomical telescope has a focal length of 50 cm and 5cm respectively what is the distance apart of the lenses if the object and final image at infinity

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

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.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig