12. You can move a super heavy box with a force of 30 Newtons. If you move the box 45 meters in 25 seconds, how much power are you using?
a. 1.2 Watts
b. 1.8 Watts
c. 54 Watts
d. 1. 350 Watts

Name two kinds of practical electric pumps.

With physics question #5? for any !

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).