Four students measure the mass of an object, each using a different scale. They record their results as follows: A: 49.06g, B: 49g, C: 50g, D: 49.2g. Which student used the most precise scale?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

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).