two resistors of 40 ohm each are connected in series across a120 V supply. and what is potential different across each resistor?​

The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island