1) The sun is 92.96 million miles (9.296 x 10? miles) away from the Earth and the speed of light is 6.706 x 108 miles/hour. How long does it take for light to reach Earth? Your answer is in hours.
Convert to minutes.

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?