2. a. A nurse needs to inject liquid medicine into your body by exerting a . N force onto a hypodermic syringe. If the barrel of the syringe is 0.50 mm in radius and the syringe's needle is 0.05 mm in radius, what force does the medicine come out from the needle into your body? (15 points) b. The barometer is a device to measure atmospheric pressure, if you plan to make a barometer by using special liquid that has density (C+1000) kg/m', what will be expected device height? Take atmospheric pressure 1.01x10'N/m(15 points)