A boy reached his home by riding motorcycle within 5 minutes by travelling 8 km distance ,them what is his average velocity?

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility