Need this badly today
The weather vane of a ship points southeast when the ship is moving east at the rate of 25 km/hr. If the wind velocity is 5 km/hr., from what direction is it blowing?
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optimisation of surface area
optimisation of surface area for a cylinder of height 2.59mm and radius of 2.935mm has a chamfered top which height of 0.41mm and is chamfered at 45degrees.
Find the largest height which can be dipped in an acid without the acid touching the base of the cylinder?