What is the magnitude of an electric field which will balance the weight of an electron on the surface of earth ?

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water