Awashing machine uses 1.8 × 105 watts of power. if it is in use for 2 hours per day (on average), how many kilowatt hours will it use in 30 days? a. 1.1 × 104 kilowatt hours b. 36 kilowatt hours c. 18 kilowatt hours d. 540 kilowatt hours e. 1.1 × 106 kilowatt hours

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

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?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)