In the summer time, most of the people like spending time along the beach. At the beach, the cool water is much more inviting than the hot sand, even though the sun warmed them both up since the morning.
The video and the table below might help to answer the following question.
Specific heat is the amount of heat per mass unit, required to raise the temperature by one degree celsius.
The specific heat of some materials is shown in the table above.
In order to raise the temperature of the sand and water to the same level, where should one invest more energy?