The average velocity of the entire trip is given by Eq. 4-8, vavg  r / t, where the total displacement r  r  r  r 123
is the sum of three displacements (each result of a constant velocity during a given time), and t  t1  t2  t3 is the total
amount of time for the trip. We use a coordinate system with +x for East and +y for North.

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate

Answer on edg: what happens to the light coming from the sun? - scattering what happens to light on the surface of water? - specular reflection what happens to light on the surfaces of rocks? - diffuse reflection