Cars are safety tested to see how quickly they come to a stop under many conditions. the distance and time of one of these tests is graphed. what is the change in velocity during the first second? a) 20 m/s eliminate b) 30 m/s c) 0 m/s d) 50 m/s

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?

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?