Several companies produce personal water filters that can travel anywhere. such filters make any water safe to drink by removing bacteria and other contaminants. however, they cannot filter heavy metals and viruses or remove salt. the filters are constructed of sturdy plastic and weigh just two ounces. they can be purchased in stores or online for about $20.

evaluate this design by describing the criteria it does or does not meet

The dot diagram represents the motion of the motorcycle as it moves from left to right

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.