When light rays reflect off a rough surface,

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?

What kind of simple machine is a catapult?

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning