Mass/force/gravity question

The mass of uranus is 9x10 to the 25th kg. Its mean distance from the earth is about 3x10 to the 12th meters. Estimate your mass in kilograms at birth. Then find the force exerted upon your body at birth by uranus. Is it very large? Next assume that you were delivered by a 100 kg physician who was on the average about 10 cm from you at birth. what force did this doctor exert on you at birth? what would seem to be more important, the planet uranus or the physician? P.s. my mass at birth was 9 lbs.

concentration problem

Blood removal of 45 ml was necessary for a particular patient. The blood was being collected when the nurse spilled the blood everywhere. It could not be determined how much blood had been removed. The nurse wiped all the blood from the floor with guaze pads. these wet guaze pads were thoroughly rinsed in a bucket containing 1.5 L of water. the guazes were thoroughly rinsed in the bucket until all the blood was removed. the concentration of blood in the bucket was 5x10 to the 6th cells/ml. It was already known that the patients red blood cell concentration was 5x10 to the 6th cells/ml. how much blood had been removed from this patient?

viscosity/flow problem

A viscous fluid is moving through a flow pipe. the flow is 2x10 to the -3 m3/s. Now, consider another tube with a fluid twice the viscosity which is moving in a pipe whose length is 3 times the original with a radius 1.5 times the original. Th pressure difference across this new pipe is 1/3 that of the original. what is the flow in the new pipe? What will happen to the flow in either pipe if the temperature is increased?

concentration problem

A patient needs to have 45ml of blood removed. While the blood is being collected the nurse spills it on the floor. she wipes it up using guaze pads. These wet pads are then rinsed out in a bucket that contains 1.5 L of water. The concentration of the blood mixed with water is 0.8 x 10 to the 6th cells/ml. The patient is known to have a blood concentration of 5 x 10 to the 6th cells/ml. Based on this information how much blood had been removed from this patient?

Pressure problem

A high heel shoe leaves a foot print on the floor. the front area part of the print has an area or 32.5cm squared. the heel of shoe leaves a 1cm cirle imprint. Standing on one leg, what pressure in pascals would you exert on the floor, assuming you weigh 165 lbs? How deep would one need to dive in fresh water in order to achieve this same pressure? Repeat if you were able to concentrate all your weight on the heel alone?