A1.7-m-long string is under 22 n of tension. a pulse travels the length of the string in 54 ms. what is the mass of the string?
express your answer in grams.

What are the north and south poles of a solenoid change with?

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?

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2