Asubmarine is stranded on the bottom of the ocean with its hatch 25 m below the surface. in this problem, assume the density of sea water is 1.03 × 103 kg/m3. show answer no attempt calculate the force, in newtons, needed to open the hatch from the inside, given it is circular and 0.25 m in diameter. the air pressure inside the submarine is 1.00 atm.

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.