Physics, 20.09.2019 23:10, redrosesxx
You are on a train that is traveling at 3.0 m/s along a level straight track. very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. as you face the window ( 0.830 m high, 2.34 m wide) in your compartment, the train is moving to the left, as the drawing indicates. the top edge of the wall first appears at window corner a and eventually disappears at window corner b. how much time passes between appearance and disappearance of the upper edge of the wall?
Answers: 3
Physics, 22.06.2019 00:20, pooperjooper
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 11:10, cmflores3245
While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.
Answers: 3
Physics, 23.06.2019 01:30, missfuture2020p5umxt
Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?
Answers: 1
You are on a train that is traveling at 3.0 m/s along a level straight track. very near and parallel...
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