4) given your present location, assume that k = 0.015, l = 91 m, s = 10%, c = 0.2, and that up- and downslope farming is practiced. what is the soil loss? what conservation practice should be adopted if the soil loss is to be reduced to 5 mg/ha? (problem 7.4 of the textbook)

Explain the doppler effect in terms of frequency, wavelength, and speed.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.