6. A soccer ball is kicked at 15 m/s at an angle of 10 degrees. What is the horizontal component of the velocity?
A. 2.60 m/s
B. 2.64 m/s
C. 14.1 m/s
D. 14.8 m/s

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).