Lagrangian mechanics. determine the equations of motion for a particle of mass m constrained to move on the surface of a cone in the presence of gravity. the cone has half-angle 45° and is oriented vertically, so that (using cylindrical coordinates) r-z with θ unconstrained. the gravitational potential is mg. thus there are two equations of motion, one for z (or, equivalently, for r) and one for θ. you do not need to solve the equations of motion. however, you should give an expression for one conserved quantity other than the total energy, and state its physical interpretation. (a conserved quantity is one that does not depend on time).
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Physics, 21.06.2019 23:10, theh301234
6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.
Answers: 2
Physics, 22.06.2019 00:50, Amandarobersonn
While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.
Answers: 3
Lagrangian mechanics. determine the equations of motion for a particle of mass m constrained to move...