A student is in class 400 minutes every day for 5 days each week. How many seconds is this?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

While carrying a heavy box up the stairs, you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity