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marina taylor

marina t.

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2. En la próxima figura se muestra un modelo de lo que se conoce como la máquina de Atwood. La misma cuenta con dos masas identificadas como M1= 30 kilogramos y M2= 2300 gramos colgando de los extremos de una soga que pasa por una polea sin fricción. Determine a. Su diagrama de fuerzas en el sistema. b. La tensión a la que se expone la soga. c. La aceleración con la que se desplaza el sistema. M1 M2

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Selected financial data for Bahama Bay and Caribbean Key are as follows: ($ in millions) Bahama Bay Caribbean Key 2024 2023 2024 2023 Total assets $9,543 $9,462 $8,743 $8,782 Total liabilities 8,002 7,466 7,443 7,433 Total stockholders' equity 1,541 1,996 1,300 1,349 Sales revenue $5,827 $12,799 Interest expense 186 147 Income tax expense 68 342 Net income 313 346 Required: 1-a. Calculate the debt to equity ratio for Bahama Bay and Caribbean Key for the most recent year. 1-b. Which company has the higher ratio? 2-a. Calculate the return on assets for Bahama Bay and Caribbean Key for the most recent year. 2-b. Which company appears more profitable? 3-a. Calculate the times interest earned ratio for Bahama Bay and Caribbean Key for the most recent year. 3-b. Which company is better able to meet interest payments as they become due? Complete this question by entering your answers in the tabs below. Req IA Req IB Req 2A Req 2B Req 3A Req 3B

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Julia is to receive AquaMephyton 2.5mg IM. The 5mL multi-dose vial available is labeled 1mg/0.5mL. How many mL(s) should the student nurse administer for this injection? Question 17 options: 0.75 mL 1 mL 1.25 mL 1.75 mL

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the 160-lb man lies against a cusion for which the coefficient of static friction is us = 0.4. Take theta = 60 and neglect the size of the man. What is the maximum speed Vg due to rotation

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First consider a Carnot engine that operates between a hot reservoir at 55\deg C and a cold reservoir at -19\deg C. In running 19 minutes, this engine absorbs 570 J of heat from the hot reservoir. How much heat does it expel to the cold reservoir? Qc = J How much work does it do in this amount of time? Wby = J What is the upper limit on the efficiency of any heat engine operating between these two reservoirs? \epsi max =

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List/name 10 proteins that were discussed in class and give their biological roles.

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you apply a force of 8N to a 10kg box on a flat, level surface. The coefficient of static friction is us= 0.1 between the box and the floor. will the box move?

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What is the significance of the transfer function in control systems?

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During brain surgery, the superior portion of the postcentral gyrus of a patient is stimulated. What do you expect the patient to do? Select one: a. Smile b. Talk to the surgeon c. Feel pressure on his toes d. Flex his fingers e. Move his hand

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An 11 kV / 220 V, 11 kVA distribution transformer has a total winding resistance of 180 Omega and a total leakage reactance of 250 Omega referred to the high-voltage side. Results of an open circuit test performed on the low-voltage side are given as: P = 250 W V = 220 V I = 1.35 A (a) Use the given open circuit test results to determine the equivalent magnetising impedance referred to the high voltage side. [6 marks] (b) Determine the voltage that must be applied on the high-voltage side in order to supply 70% load at 0.85 pf lagging at rated volts. [4 marks] (c) Calculate the transformer regulation for the conditions of part (a). [2 marks] (d) For the conditions of part (b), estimate (i) the core loss, (ii) the winding loss and (iii) the transformer efficiency. [8 marks]

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