Is the speed of sound is greater in regular air or pure CO2 , assuming the two gasses at the same temperature and pressure

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?