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Vectors and Application - A beam is hinged at the ground and is held at an angle of 45 degrees to the horizontal by a cable attached to its midpoint and making an angle of 50 degrees with the beam. Given that the beam has length 10m and mass of 175kg, determine a) the tension in the cable and b) the reaction at the ground. Please show working out.
Use Stokes' Theorem to evaluate ∫∫Scurl F dS, for F(x, y, z) = 2y coszi + ex sinzj + xey k, S is the hemisphere x2 + y2 + z2 = 9, z > 0, oriented upward
write 300-500 words that respond to the following questions with your thoughts ideas and comments. this will be the
Write this equation in standard form: xsquared-4(ysquared)-2x+16y-19=0. Write this equation in standard form: 6x-xsquared=8y+1
Describe the four models of democracy. Tell which one you think most closely resembles today's model in America. Which model do you prefer, and why?
A textbook store sold a combined total of 348 chemistry and math textbooks in a week. The number of chemistry textbooks sold was three times the number of math textbooks sold. How many textbooks of each type were sold?
In a logistic regression analysis where Y=1 represents survival and Y=0 represents death, the logit of the survival probability is the negative of the logit of death probability.
What is the mean of the sampling distribution of p ˆ, the proportion of adults in samples of 500 who favor giving parents of school-age children these vouchers?
Which of the following vectors is a normal to a line perpendicular to the line (x,y)=(3,4)+t(-5,6)
size of u.s. states. the total surface area (in square miles) for each of six selected Eastern states is listed here. Which set is more variable?
Let a, b, c, d∈ R. If a > 0 and b > 0, then ab > 0. If a > 0 and b ≥ 0, then ab ≥ 0. If a ≥0 and b ≥0, then ab ≥ 0. Need to prove this
Cutter Enterprises purchased equipment for $72,000 on January 1, 2006. The equipment is expected to have a five-year life, with a residual value of $6,000 at the end of five years.
a shipment of 150 television sets contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive (a) no defective units, (b) all defective units and, (c) at least one good unit.
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