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Numeric 20 points A car of mass m₁=1800kg is traveling east with a speed of v₁ᵢ=20m/s. A second car of mass m₂=2200kg is traveling north with a speed of v₂ᵢ=25m/s. The two cars suddenly collide at right angles at an icy intersection. If the two cars become enmeshed after the collision (they stick together), what is the speed of the combined wreck after the collision? Type your answer... Submit --- OCR End ---

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Solving a two-step equation with integers Solve for y. 13=3+(y)/(5) Simplify your answer as much as possible. y

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Suppose a tax of $2 per unit is imposed on this market. What will be the new equilibrium quantity in this market? a. greater than 100 units b. less than 60 units c. between 60 units and 100 units d. 60 units

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Q2) [40p] Given the following message and carrier signal $m(t) = \cos 2000\pi t + 2\cos 6000\pi t + \cos 10000\pi t$ $c(t) = 20 \cos 320000\pi t$ a) Determine the Hilbert transform of $m(t)$. b) Determine the Single Side Band (SSB) AM signal $u_{SSB}(t)$ which uses upper sideband. c) Plot the spectrum $U_{SSB}(f)$ of $u_{SSB}(t)$.

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Read the description of a critical nutrient needed during pregnancy and how it influences the growing fetus, then match it with the effect of inadequate intake.

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True or False. The brain area that is activated when people smell disgusting food is similarly activated when they feel moral disgust in response to a perceived injustice. Group of answer choices True False

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Suppose your dataset has 52 observations, and you run a regression with 27 variables in- cluded. You want to run a two-sided t-test on the statistical significance on one of the coeﬀi- cients. How many degrees of freedom will this test have? Q2. If you and I agree to a 99% significance level for rejection of null hypotheses, what is the critical value for the test described above? Q3. Suppose the t-statistic for that coeﬀicient is 2.5. How certain are we that the coeﬀicient does not equal zero?

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Evaluate the following indefinite integral. int (6)/(x^(2))dx int (6)/(x^(2))dx= ◻ (Type an exact answer.) Evaluate the following indefinite integral 6/~ dx 6 dx= INX (Type an exact answer.

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CFG L2 = {ω in {a, b}* | ω is of odd length and ω starts and ends with the same symbol}

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What type of court hears arguments from lawyers, has no witnesses or other evidence, and then issues written opinions? Courts of inferior jurisdiction Trial courts Appellate courts All state courts

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jose ignacio c.