A physics teacher turns the tube upside down very quickly and the small metal spheres then fall though 1.8m and hit the bottom of the tube calculate the decrease of gravitational potential as the spheres fall 1.8, decrease of gravitational potential=?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?