Which unit of heat was originally defined in terms of the Fahrenheit temperature scale, not the Celsius scale?

British Thermal Unit

joule

kilocalorie

calorie

The movement of electrons between atoms is called an

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

You can melt ice by applying pressure because the solid/liquid line has a slope.