During operations outside controlled airspace at altitudes of more than 1,200 feet agl, but less than 10,000 feet msl, the minimum flight visibility for vfr flight at night is

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy