2. Connect concepts on the left with a description on the right. Concave lens A. Distance between two waves. Magnifier B. Can be captured on screen. Focal length. C. Light of a wavelength. Wavelength D. Scattered incident light. Infrared radiation E. Convex lenses. Real picture F. Distance to the focal point. Laser G. Light swinging in one direction. Polarized light. H. Heat radiation

3. Explain in as much detail as you can how a rainbow arises. a

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.

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 "