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shane lucena

shane l.

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Two objects are connected by a light string that passes over a frictionless pulley as shown in the figure below. m₁ = 6.60 kg, m₂ = 6.00 kg, and φ = 63°. When released from rest, m₁ accelerates downward at 1.538 m/s². For this to happen, the coefficient of kinetic friction must be 0.270 . Use g = 9.8 m/s². , and to even begin sliding in the first place the coefficient of static friction must be less than 0.221

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Which of the following writing systems was the first to appear in history? Group of answer choices Indus Valley script. Hieroglyphics. Chinese characters. Cuneiform Phoenician alphabet.

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Question 18 2 pts Imagine you've been listening for some time to a friend talk about whether or not to drop out of school. Which is the best helping paraphrase response? Oc. "You do sound mixed up. Maybe you ought to hold off making a decision for a while." Oa. "You're confused because there are as many reasons to stay as there are to leave, right?" Od. "Tell me more. I think we can get to the bottom of this if we talk it out. I'm listening." ob. "Which alternative sounds best to you?"

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What part of an EKG would be abnormally elongated if the AV node takes a long time to activate? A. 1 B. 2 C. 3 D. 4 E. 5 What part of an EKG would be abnormally elongated if the AV node takes a long time to activate OA.1 OB.2 OC.3 OD.4 E.5

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Write the equation of the circle centered at \((-9, 8)\) that passes through \((4, 9)\).

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Calculate the Volume, Surface Area and angles of this triangular prism. Note 1: The triangular ends are NOT right triangles. Note 2: you will need Heron's formula to find the area and Sine/Cosine laws to find the angles of the triangular end. Answers to 3 significant digits please. SHOW YOUR WORK. FINAL ANSWER WILL COUNT ONLY FOR 1 MARK. Volume: (3 marks) Surface Area: (3 marks) Angles of the triangular end: (2 marks for the first one you find) (1 mark) (1 mark) 1) Calculate the Volume, Surface Area and angles of this triangular prism Note 1: The triangular ends are NOT right triangles. Note 2:you will need Heron's formula to find the area and Sine/Cosine laws to find the angles of the triangular end. Answers to 3 significant digits please. SHOW YOUR WORK.FINAL ANSWER WILL COUNT ONLY FOR 1 MARK. 7.13f 19.8 ft 13.4ft Volume: (3 marks) (3 marks) Surface Area: Angles of the triangular end (2 marks for the first one you find) (1 mark) 1 mark)

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7. What is the common name for the branch shown in the compound below. a. Isobutyl- b. Neobutyl- c. sec-butyl- d. tert-butyl-

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Reviewing Case 11A, do you believe Mr. Toms' goals were met? Why or why not? Is palliative sedation the same as euthanasia? Why or why not? What ethical and legal principles apply to this case and were they followed?

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1. The collector current of a certain BJT operating in the forward active region is 3.4mA when its emitter-base junction has a DC bias of 0.7V. Calculate the reverse saturation current of the emitter-base junction. Assume V_(T)=26mV at room temperature. Give your answer in amperes in the form, X.XXE-XX. 2. In the forward active mode of a BJT, thermal generation of electron-hole pairs in the collector-base depletion region can reduce the base current. Why? a. Extra holes will be provided by the collector to recombine with electrons diffusing in the base. b. Electron injection from the collector competes with electron injection from the emitter. c. Hole injection from the collector competes with electron injection from the emitter. d. Electron diffusion becomes less efficient since the equilibrium minority carrier concentration in the base increases. 3. What is the reason for varying the doping density in the base? a. By decreasing the base doping near the collector, the collector-base depletion region capacitance can be reduced. b. In an npn transistor, this reduces the minority hole current in the emitter and increases the emitter injection efficiency. c. The established electric field increases the hole drift current component of the collector. d. A minority drift current component is established in the base region in addition to the minority diffusion current.

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3) Use voltmeter to measure the potential difference across all resistors. Voltage (A) R1 R2 R3 R4

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