What is the force that keeps two objects that are touching sliding past each other?

What does the letters in sonar stand for? What is pitch loudness and quality? Is john Seward in Dracula static or dynamic? Why does a box containing 15 baseballs have a stonger pull of attraction toward the earth than a box containing 10 baseballs? How is wavelength related to frequency for waves moving at a constant speed? Explain why friction increases as speed increases using the big idea of particles? Who first said The bigger they are the harder they fall? When light strikes some objects the light bounces off of it these light rays are? When is energy negative? How much inertia would a 2 kg mass object have compared to a 1 kg mass object? What is matter and energy? In which case or cases is electric field present? Why do you weigh less in water? Printmaking involves moving a tool across a dry surface to create marks on that surface? Is mixing with water a physical property? How much is 160 seconds? What are variables for a pulley? Where do countries test nuclear bombs? What evidence supports that Each color of visible light has a wave of a specific wave length? How nuclear energy is use in science and medicine?

What is the force that keeps two objects that are touching sliding past each other?