Two masses, m1 and m2 are joined by a massless spring and lie on a frictionless horizontal surface. The spring has constant k and unstitched length. Required:
Find the characteristic frequencies and normal coordinates when the system is put in motion.

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?