Physics, 20.08.2019 22:20 melissalo32y
Puck a, of inertia m, is attached to one end of a string of length l, and the other end of the string is attached to a pivot so that the puck is free to revolve on a smooth horizontal surface. puck b, of inertia 8m, is attached to one end of a string of length l/4, and the other end of the string is attached to a second pivot so that b is also free to revolve. in each case, the puck is held as far as possible from the pivot so that the string is taut and then given an initial velocity v perpendicular to the string. part ahow does the magnitude of the angular momentum of puck a about its pivot compare with that of puck b about its pivot? \frac{l_{\theta ,b}}{l_{\theta ,a}} = ? part bhow does the rotational kinetic energy of a compare with that of b?
Answers: 2
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
Physics, 22.06.2019 05:10
Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature
Answers: 2
Physics, 22.06.2019 07:20
What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.
Answers: 3
Puck a, of inertia m, is attached to one end of a string of length l, and the other end of the strin...
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