Please will give brainliest Questions 1) A hydrometer has mass 19g and Floats in water with 5cm
of its stern above water Surface.
a) Determine the total volume of the hydrometer, if it floats in air of density 1. 2g/cm³ given that the Cross Sectional Area of the hydrometer is 0.650m²
(b) what is the length of the stern above the Surface of the water given that the density of water is 1g/cm³?
please will give brainliest

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to