suppose that we attach velcro® to the non-magnetic ends of the two carts in the video and remove the mass bars, so that both carts have the same mass. we repeat the experiment shown in the video, and the carts stick together after they collide. if the launch cart travels at a speed v0, then how fast will the combined two-cart system travel after the collision?

Why is metal often used for cooking pan?

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.)

Positive ions differ from neutral atoms in that