A 5g sample of pure gold has a density of 19.3g/mL. Your friend purchased a gold ring that was made of 25g of pure gold. What is the density of the gold ring? Density =
Mass/Volume
A.5g/mL
B.19.3g/mL
C. 25g/mL
D.16.92g/mL

What is magnetic flux? explain faraday's law of induction.

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.