Magnesium sulfate (mgso4) dissolves in seawater? which is the correct description of magnesium sulfate?
a. it is an inorganic salt
b. it is an organic salt
c. it is an inorganic lipid
d. it is an organic lipid

The ability to make things happen is also called a. heat b. force c. matter d. energy

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

Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?