In the mixing process you analyzed, the inner calorimeter cup started how many degrees below room temperature and ended how many degrees above room temperature? explain why using water from the water cooler, rather than tap water (or hot water or ice water or water from a bottle in your backpack) is a good choice for an accurate experiment

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

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