One extremely confusing thing about meeting orbital me-chanics for the first time is that almost anything can be expressed in either the geometric language ofthe orbital elements, or the dynamical language of energy, angular momentum, and so forth. usingthe flight-path angleφ, express the transverse and radial components of the velocity vector in termsof the energye, angular momentumh, the angleφand the radiusr.

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

In which of the following is positive work done by a person on a suitcase

Explain what will happen if decomposers were apsent from a forest ecoysystem.