Ok so yesteraday i Woke up at 10:34 and i went into the kitchen to get some water, And even though i was supposed ot be sleep, i couldnt really go to sleep, so i walked in the kitchen and was going to get some water, i was about to grab a cup and my parents came out, and I got Grounded because i was trying to get some water. so my questions is Should i be Grounded even though i was supposed to be sleep but should i be grounded for getting WATER.

i mean wtaer is what i need to survive so if i cant get water or if i get grounded that techincally means that im not supposed to get water, do you guys get waht im saying and i got grounded yesteraday night, and my mom says its disrespecting her because yeah i get it that i was supposd to be sleep but ITS WATER

Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8×10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8×10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?