How is the energy of a photon related to its frequency?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).