Nicki rides her bike at a constant speed for 6 km. that part of her ride takes her 1 h. she then rides her bike at a constant speed for another 9 km. that part of her trip takes her 2 h. what is her average speed?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?

2) why do satelites not fall while revolving around the earth?