You are a lifeguard and spot a drowning child 30 meters along the shore and 60 meters from the shore to the child. you run along the shore and for a while and then jump into the water and swim from there directly to child. you can run at a rate of 5 meters per second and swim at a rate of 1 meter per second. how far along the shore should you run before jumping into the water in order to save the child? round your answer to three decimal places.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

Arock collection comes from which part of earth?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.