how much heat is produced in one hour by an electric iron which draws 2.5ampere when connected to a 100V supply​

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Determine the maximum r-value of the polar equation r =3+3 cos 0