For a particular casting setup, the top of the sprue has a diameter of 0.030 m, and its length is 0.200 m. the volume flow rate of metal into the mold is 0.03 m3 /min. what is the resultant velocity at the bottom of the sprue? also, what diameter should be specified at the bottom of the sprue to prevent air aspiration? what is the reynolds number at the bottom of the sprue. is the flow laminar or turbulent? assume the pressure at the top and bottom of the sprue is atmospheric pressure. viscosity of the metal used is 0.004 n. s / m2. density of the metal is 2700 kg/ m3 .

I'm kinda lost ! 1. when marilyn takes her pet dog for a walk, the dog walks at a veryconsistent pace of 0.55 m/s. draw a position-time graph to representmarilyn's dog walking the 19.8 m distance from the front of her house tothe nearest fire hydrant.2. both car a and car bleave school when a stopwatch reads zero. car atravels at a constant 75 km/h, and car b travels at a constant 85 km/h.a) draw a position-time graph showing the motion of both cars. howfar are the two cars from school when the stopwatch reads 2 hrs? calculate the distances and show them on your graph.b) both cars passed a gas station 120 km from the school. when dideach car pass the gas station? calculate the times and show themon your graph.3. the figure below shows the position-time graph showing a shopper'smovement up and down the aisle at a store.a) write a story describing the shopper's movements at the store.b) when does the shopper have a position of 6 m? c) how much time passes between when the shopper enters the aisleand when he gets to a position of 12 m? what is the shopper's averagevelocity between 37 s and 46 s?

The two required components for a generator are

Atomic nuclei of almost all elements consist of