A ball is thrown directly up from the ground with an initial speed of 80 m/s. Will its speed on the way up ever be larger than 80 m/s?

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

Which of the following list the divisions of the geologic time scale in order from longest to shortest

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.