Mathematics, 26.08.2019 21:10, Fredo10
Acannonball of mass 1kg is shot vertically upward from the top of a building with an unknown velocity v_0(m/sec).v 0 (m/sec). after 2 seconds, the ball reaches its maximum height 30 meters from the ground. neglecting the air resistance and taking the gravitational acceleration gg to be 10(m/sec^2)10(m/sec 2 ), find the height of the building.
Answers: 3
Mathematics, 21.06.2019 19:00, faizaanahmed4p7gn2z
The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'
Answers: 1
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Acannonball of mass 1kg is shot vertically upward from the top of a building with an unknown velocit...
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