A relative density bottle of mass 25g has a capacity of 50cm^3.The bottle is completely filled with methylated spirit, and its mass is 65g. The bottle is emptied and some salt is then put into the empty bottle and then weighed, the mass now is 50g. Methylated spirit is now added until the bottle is completely filled and the total mass now becomes 80g. From the data given, calculate the density of the salt? please help me, i beg​

In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer

Will a heavier bowling ball hit pins better than a lighter bsll

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.