The phrase "This is just the tip of the iceberg" is often used. It refers to the huge masses of ice that float in the oceans and only show a small fraction of their structure on the surface. Most of the icebergs hide below the water level. Based on the diagram below, what is the likely density of icebergs? (The density of salt water in the oceans is 1.03 g / ml.) PLS HELP I WILL GIVE BRAINLIEST ASAPP THIS IS URGENT

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?