2 When a 45 kg cannon ball leaves a barrel, it has a momentum of 14,000
kg*m/s. What is the speed of the ball at the end of the barrel? (type in the
number only and round to the nearest hundredth

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.

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem