If we use 1 millimeter to represent 1 light-year, how large in diameter is the milky way galaxy? a.100 millimeters b.100 kilometers c.1 kilometer d.100 meters e.1 million millimeters

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?

Should we celebrate the voyages of zheng he mini q answer key