Mathematics, 03.07.2019 04:20, 1129682
Abaseball is hit when it is 3 ft above the ground. it leaves the bat with initial speed of 154 ft/sec, making an angle of 18 degrees with the horizontal. assume there is linear drag with a drag coefficient k = 0.31. the acceleration due to gravity is g = 32 ft/sec^2. answer the following questions.(a) find a vector form for the path of the baseball using the equations for linear drag, x = (v0/k)(1-e^(-kt) cosα and y=y0 + (v0/k) (1-e^-kt)(sinα) + (g/k^2)(1-kt-e^(-kt)(b) how high does the baseball go, and when does it reach its maximum height? (c) find the range and flight time of the baseball.(d) when is the baseball 10 ft high? how far (ground distance) is the baseball from home plate at that height? (e) a 9-ft high outfield fence is 363 ft from home plate in the direction of the flight of the baseball. the outfielder can jump and catch any ball up to 10 ft off the ground to stop it from going over the fence. has the batter hit a home run?
Answers: 2
Mathematics, 21.06.2019 14:40, kiasiab17
The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.
Answers: 3
Mathematics, 21.06.2019 18:30, joaquin42
Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.
Answers: 1
Abaseball is hit when it is 3 ft above the ground. it leaves the bat with initial speed of 154 ft/se...
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