Numerade

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A 5 . 5 𝑘 𝑔 object moving in the + 𝑥 direction at 8 . 0 𝑚 𝑠 collides head - on with an 8 . 0 𝑘 𝑔 object moving in the - 𝑥 direction at 4 . 0 𝑚 𝑠 Part A Determine the final velocity of each mass if the objects stick together. Express your answer in meters per second. Request Answer Part B Determine the final velocity of each mass if the collision is elastic. Express your answers in meters per second separated by a comma. 𝑣 5 . 5 ' , 𝑣 8 . 0 ' = , 𝑚 𝑠 Request Answer Part C Determine the final velocity of the 8 . 0 𝑘 𝑔 object if the 5 . 5 𝑘 𝑔 object is at rest after the collision. Express your answer with the appropriate units. ◻ Request Answer Part D Complete previous part ( s ) Part E Determine the final velocity of the 5 . 5 𝑘 𝑔 object if the 8 . 0 𝑘 𝑔 object is at rest after the collision. Express your answer with the appropriate units. ◻ Request Answer Part G Determine the final velocity of the 8 . 0 𝑘 𝑔 object if the 5 . 5 𝑘 𝑔 object has a velocity of 4 . 0 𝑚 𝑠 in the - 𝑥 direction after the collision. Express your answer with the appropriate units. 𝑣 8 . 0 ' = ◻

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16. Red Rover, Red Rover, let Leslie come over. In this childhood game, you try to stop and catch a person who is running directly at you. Who would you rather pick? (2.5pts) A. Sean, who weighs 400 N and can run 5 m/s. B. Meihong, who weighs 450 N and can run 6 m/s. C. Deidra, who weighs 300 N and can run 9 m/s.

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Points) Q2 2 points What happens if you try to compile and run this program? #include <iostream> using namespace std; int main() { int i,j,k; i=2; j = -2; if(i) i--; if(j) j++; k = i *j; cout<<k; return 0; } the program outputs 2 the program outputs 1 the program outputs -1 the program outputs -2

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Question 26 2 pts Imagine a cell with a membrane voltage that is positive. What is the direction of the ELECTRICAL force on Cl-? O Inward O Outward O Could be inward or outward, depending on the strengths of different forces. O There is both an inward AND an outward electrical force on Cl- in this case. O There is no electrical force on Cl- in this case.

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5. Consider a 16 core Multicore processor. This is Machine 1. Consider another 16 core multicore processor with a Floating point co-processor added to each core. This is Machine 2. The Floating point co-processor speeds up all floating point calculations by a factor of 4. Assume that when a Floating co- processor is active, the main Core processor will be in active and vice versa. Consider a Program A where 30% of the execution time done on Floating point co-processor. Only one Core out of the 16 cores is active 25% of the time. Four cores are active 75% of the time. What is the speedup of Machine 2 compared to Machine 1.

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A rigid tank holding argon at a temperature of 20 °C and a pressure of 1.2 atm starts leaking until the pressure inside the tank reaches 1 atm (temperature still the same). We fix the leak and the tank is again sealed. We now wish to bring whatever argon is left in the tank back to the original pressure, to what temperature must we heat the argon up?

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Which of the following equations depicts the equation of the line in slope-intercept form for a line passing through (8, 0) and perpendicular to y = 4x + 18? a) y = 4x + 18 b) y = -4x + 8 c) y = 1/4x + 7 d) y = -1/4x + 2

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Text: THIS IS A PROLOG QUESTION: The following KB includes some facts about the hierarchy of an organization. reports(X,Y) means X reports to Y. % Facts: reports(john, mary). reports(mary, ann). reports(ann, michelle). Write a rule boss(X,Y) which means X is Y's boss as follows: X is Y's boss if Y reports to X. For instance, mary is john's boss according to the facts. X is Y's boss if X is Z's boss and Y reports to Z. For instance, ann is john's boss and michelle is everybody else's boss according to the facts. Write the Prolog rule boss(X,Y) in the provided field. Hint: You may need to use recursion to write this rule.

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Rule 1. 2 8 14 20 _____ 2. 89 86 83 80 _____ 3. 55 50 52 47 _____ 4. 14 56 224 896 _____ 5. 7 14 21 28 _____ +6 -6 -3 +3 (-5,+2) (+5,-2) \times 4 +4 +7 -7

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2) Convert all the logarithms to base 3. [Sol] ($\log_2 3 + \log_4 9$)($\log_3 2 + \log_9 4$) =

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rodrigo s.