Wendy makes a graphic organizer to herself apply ohm’s law to electric circuits. which formulas belong in the regions marked x and y? a) x: i = i1 + i2 + i3 y: req = r1 + r2 + r3 b) x: req = r1 + r2 + r3 y: i = v/ req c) x: i = i1 = i2 = i3 y: v = v1 + v2 + v3 d) x: i = v/ req y: v = v1 = v2 = v3

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?