Which of the following statements is accurate? a. sound waves passing through the air will do so as transverse waves, which vibrate vertically and still retain their horizontal positions. b. compressions and rarefactions occur throughout a transverse wave. c. amplitude of longitudinal waves is measured at right angles to the direction of the travel of the wave and represents the maximum distance the molecule has moved from its normal position. d. the wavelength of both transverse and longitudinal waves is measured parallel to the direction of the travel of the wave.

What are chlorofluorocarbons and what impact do they have on the atmosphere?

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.

You can decrease the resistance of a length of wire by