A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.39 hours. What is density of the planet

In an experiment, how can i change human errors? be specific.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

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).