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anna jackson

anna j.

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A ride in an amusement park consists of a rotating arm AB that has an angular acceleration of $\alpha_{AB}$ = 2 rad/s² when $\omega_{AB}$ = 2 rad/s at the instant shown. Also at this instant the car mounted at the end of the arm has an angular acceleration of $\alpha$ = {-0.6 k) rad/s² and angular velocity of $\omega'$ = (-1.5 k) rad/s measured relative to the arm. Suppose that a = 12 ft and r = 3 ft. (Figure 1) Determine the x and y components of the acceleration of the passenger C at this instant using scalar notation. Express your answers in feet per second squared to three significant figures separated by a comma. (ac)z. (ac)y = 55.4, -20.47 ft/s²

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what is the role of a financial manager and why is it important to study financial management

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Enzymes breaking down nucleic acids into nucleotides in the small intestine is an example of what type of digestion? Ochemical digestion Omechanical digestion

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(9) You have a sample of intrinsic germanium (Ge) at room temperature which is a cube of side $r = 0.1$ cm. The resistance of this sample is $450 \Omega$. You would like to decrease the resistance to $0.45 \Omega$. (a) What concentration of donor atoms would need to be added to the sample to achieve this resistance? [Hint: the concentration of donor atoms will be much larger than $n_i$, so the doped material will be strongly n-type]. You may assume the mobilities are the same as those given in table B4 of Neaman's book, and that all donor states are fully ionized at room temperature. Answer: $3.57 \times 10^{16} cm^{-3}$ (b) What fraction of germanium atoms will need to be replaced by a donor atom to achieve this resistance? Answer: 1 out of every 1.2 million

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The adrenal glands have an inner part, the adrenal cortex, and an outer portion, the adrenal medulla. True False

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me of the following two questions: Your economics professor assigns a group project for the course. Describe the free-rider problem that can lead to a suboptimal outcome for your combat this problem, the instructor asks you to evaluate the contribution of your peers in a confidential report. Will this evaluation have the efects?

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Which of the following best characterizes boundary condition error Question 6 options: A formula that references an incorrect variable operations are organized in an incorrect order Punctuation errors, often involving commas, quotes, and parenthesis repeating logic that does not end when it should choosing a function that exists in Excel, but performs an operation unsuited to the task

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A famous example of adaptive radiation that we haven't discussed in class is of the African cichlid fishes. In many lakes in Africa, but especially in Lake Victoria, Lake Tanganyika and Lake Malawi, there is extreme diversification of species. This is a good example of adaptive radiation because Question 4 options: fish evolve faster than birds fish have been introduced to the African lakes many times these fish have evolved to occupy many different adaptive niches within the lake ecosystems these fish have evolved different colours

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Problem 12-22 Net Present Value Analysis [LO12-2] The Sweetwater Candy Company would like to buy a new machine that would automatically "dip" chocolates. The dipping operation currently is done largely by hand. The machine the company is considering costs $190,000. The manufacturer estimates that the machine would be usable for five years but would require the replacement of several key parts at the end of the third year. These parts would cost $11,100, including installation. After five years, the machine could be sold for $8,000. The company estimates that the cost to operate the machine will be $9,100 per year. The present method of dipping chocolates costs $51,000 per year. In addition to reducing costs, the new machine will increase production by 7,000 boxes of chocolates per year. The company realizes a contribution margin of $1.55 per box. A 21% rate of return is required on all investments. Click here to view Exhibit 12B-1 and Exhibit 12B-2. to determine the appropriate discount factor(s) using tables. Required: 1. What are the annual net cash inflows that will be provided by the new dipping machine? 2. Compute the new machine's net present value. Complete this question by entering your answers in the tabs below. Required 1 Required 2 What are the annual net cash inflows that will be provided by the new dipping machine? Total annual net cash inflows

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1- For the function, $y = \frac{(x+7)^4}{(x+1)\sqrt{x}}$, calculate the value of y for the following values of x using element-by-element operation: 1.5,2.5,3.5,4.5,5.5,6.6

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