Numerade

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II. PROBLEMS 1. (30 points) Calculate the reactions at pin A and in member BC for the loading shown. Be sure to clearly indicate the direction of your reactions in a FBD. Determine the internal loadings that act at point D. Be sure to clearly indicate the direction of your assigned internal loadings in a FBD. For 5 points extra credit, determine the minimum allowable diameter to the nearest mm of the double-sheared pin A if the failure shear stress is 24 MPa. Assume a factor of safety of 1.6 300 N/m B D 6 m 5 m 12 m

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Which has the highest entropy? H2O(l) at 100 °C H2O(s) at -50 °C H2O(g) at 100 °C H2O(g) at 150 °C H2O(l) at 4 °C (the temperature of maximum density)

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The protons in a nucleus are approximately 2 ✕ 10−15 m apart. Consider the case where the protons are a distance d = 2.02 ✕ 10−15 m apart. Calculate the magnitude of the electric force (in N) between two protons at this distance. N

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Consider the 2D plane stress case of a long rectangular beam of length 2L under uniform tension T (force per unit area) at the top and bottom as shown. The depth and width of the beam cross-section are 2c and b, respectively. a) Write down the boundary conditions on all 4 sides. b) Write down an Airy stress function for this problem. c) Determine the stress and strain quantities for the beam.

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Let p be a prime number. Consider the following statement: If p is prime and $p > 2$ then p is odd. When would the statement be false? Select all that apply. p is prime and $p > 2$ and p is odd p is not prime and $p < 2$ and p is odd p is prime and $p > 2$ and p is even p is not prime and $p \le 2$ and p is even None of the above

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Question 1 3 pts Mental health theories that involve prescribed drugs or other procedures that act directly on a patient's brain are Select one: Obiomedical theories. Opsychodynamic theories. Obehavior theories. Ocognitive theories.

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suppose that 1982 is the base year for the consumer price index and in 2007 the consumer price index is 320. What does this "320" mean?

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Which of the following best describes the risk associated with a rootkit? Group of answer choices It gains administrator-level access to a computer or network without the system or users detecting its presence. It disguises itself in a legitimate file and then causes damage when opened. It displays unwanted advertisements on your computer. It locks you out of programs and data on your computer until you pay a fee to regain access.

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Give as much information as you can about the P-value of a t test in each of the following situations. (Hint: See discussion on page 594. Round your answers to three decimal places.) (a) upper-tailed test, df = 6, t = 2.0 (b) lower-tailed test, df = 10, t = -2.3 (c) lower-tailed test, n = 23, t = -4.2 (d) two-tailed test, df = 14, t = -1.7 You may need to use the appropriate table in the appendix to answer this question.

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CURRENT OBJECTIVE ? Find the slope of a tangent line using the second limit definition Question Find the slope of the line tangent to the graph of $f(x) = -\frac{1}{x-2}$ at $x = -1$. Provide your answer below: m_{tan} = \boxed{ }

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