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matthew rhodes

matthew r.

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Problem 3) A gondola has a self-weight of 900 lb and center of gravity at G. The suspender arm AE has a square cross-sectional area of 1.5 in. by 1.5 in. and is pin connected at its ends A and E. If the suspender arm is made with high strength steel of allowable normal stress 42 ksi, what should be approximately the number of persons allowed in the gondola if average person weight is 200 lb. Assume that location of G doesn't change significantly after adding people. E 1.25 ft D 4 ft 1.5 in.- B C 1.5 in 5.5 ft A

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Look at Lec 15 slide #2 to answer this question. The question has an electron moving in a circle inside a solenoid. The question is asking you to calculated the magnetic field generated by the solenoid is part (a). Can you use the equation for magnetic field generated by a solenoid ( ) to solve part (a)? Note that the current is not given here. Choose your answer from below and fill in the gap.

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Exercise 6 The world consists of two countries, X which is poor and Y which is rich. The total benefits (B) and total costs (C) of emissions abatement (A) are given by the functions $B_x = 8(A_x + A_y)$, $B_y = 5(A_x + A_y)$ $C_x = 10 + 2A_x + 0.5A_x^2$ and $C_y = 10 + 2A_y + 0.5A_y^2$ (a) Obtain the equilibrium levels of abatement for X and Y, if they decide independently. Calculate the net benefit for each country. (b) Now assume they agree to work together. Obtain the equilibrium level of abatement. Calculate the net benefit for each country. (c) Does the abatement level in scenario (b) deliver Pareto improvements for each country compared to scenario (a), or would one have to give a side payment to the other to obtain Pareto improvements?

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Methylphenidate affects neurotransmission by which of the following mechanisms of action? Select one or more: a. competitively inhibiting dopamine release b. competitively inhibiting dopamine uptake c. Competitively inhibiting serotonin release d. inhibiting norepinephrine synthesis e. competitively inhibiting serotonin uptake

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1. (2 pts) The $K_{sp}$ of aluminum hydroxide is $1.3 \times 10^{-33}$ at 20.0 C. What are the molar concentrations of $Al^{3+}$ and $OH^-$ ions?

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Question What is the amount of energy required to change one mole of a substance from the solid to gaseous state known as? Select the correct answer below: the enthalpy of sublimation the melting point the entropy of disorder the enthalpy of fusion FEEDBACK MORE INSTRUCTION

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(4) The reversible, elementary, liquid reaction 2A \iff C + D is conducted in an isothermal CSTR at a feed rate of 100 dm³/min with an inlet concentration $C_{A0}$=1.5 mol/dm³. The reaction rate of A in the forward direction is 10 mole/dm³-min and the equilibrium constant is 5. We want to achieve 40% of the equilibrium conversion. Find the size of a CSTR to achieve this conversion. (5 points)

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your investments? Explain why. c. Which option would you choose first if your objective was to maximize the net present value of your investments per dollar spent? Explain why. 6. Consider the problem of whether or not to buy or lease a new piece of equipment. You know you only need it for 5 years, and you can purchase it or lease it. • The lease requires a down-payment of $2,000 upon signing the lease and then a monthly payment of $560 due at the end of each month for the next 5 years. At the end of the lease the equipment goes back to the dealer. • If you purchase the equipment you buy it for $35,000 in cash, and at the end of the 5 years you will sell the equipment for $5,000. Assume the monthly interest rate is 0.5%. Calculate the present discounted value (cost) of your options of leasing or buying this piece of equipment. Which option should you take?

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[8] A force transducer is mounted such that its total effective mass is 80 g. When a static force of 100 N is applied to the transducer, it deflects by 1.25 mm. Damping in the transducer system is estimated as \( \zeta = 0.15 \). Calculate the frequency range for a maximum amplitude error of 5% when it has a simple periodic function input.

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9 mm 232 250 ?. A. 6.7 9 mm ?c ?max ?? 200 (a) Section (b) Bending stress (c) Shear stress

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