A farmer designs a corn plant that produces multicolored kernels by crossing a plant that has yellow kernels with a plant that has red kernels? Which of these describes the process the farmer uses? А. Natural selection B. Selective breeding C. Genetic engineering D. Asexual reproduction

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?