An electric current that changes directions at regular intervals is called
a. directional current.
c. reversible current.
b. alternating current.
d. fluctuating current.

Which statement about covalent bonds is true

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

Orange juice has a lower or higher viscosity than chocolate syrup