A box of mass 22 kg is at rest on a flat floor. The coefficient of static friction between the box and floor is 0. 37. What is the minimum force needed to set the box in motion across the floor?.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the