Which of the following defines the wavelength of a wave?

the height of a wave between peak and trough.
the speed that a wave is passed from particle to particle.
the distance between peaks of a wave.
the loudness of waves that travel through the air.

Why does the input force have to be greater than the force needed to lift the bale?

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.