3. the mass of aimi is 47kg. she wears a pair of high-heeled shoes, each with a surface area of contact of 1.5cm with the floor. what is the pressure exerted by aimi on the floor? 4. the mass of a car is 1000kg. if the area of contact between the tyres and the road surface is 25cm^2,calculate the pressure exerted by each tyre on the surface of the road.

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.