Why energy cannot escape from the room by conduction

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

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).