A hammer and a feather are dropped from the same height by an astronaut on a planet without air. Which value will be different for the two objects? A. The velocity of the objects
B. The time it takes for them to fall
C. The downward pull of gravity
D. The upward push of air resistance

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Answer explain why it is not possible to deduce a complete order of reactivity.

Find the number of moles of argon in 364g of argon.