17. The shape of a river is determined by which of the following? (Choose all that apply)
A Erosion
B. Deposition
C. Weathering
D. water speed

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

What are atoms of the same element with varying number of neutrons

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.