A runner jogs 1505 m due north and then turns around and jogs 1305 m due south. The entire trip took him exactly 16 minutes. What was his average velocity due north for the trip in m/s?

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

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?