An echo repeats two syllables. if the velocity of sound is 330 m/s , then the distance of the reflecting surface is-
a) 66.0 m
b) 33.0 m
c) 99.0 m
d) 16.5 m

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical