Jenny experiences an average downward force of 441 N anywhere she goes on earth. calculate her mass

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Which system of units is used by only a small number of countries in the world, including the u.s.

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?