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When studying, there is an advantage to your performance that is caused by studying in short sessions separated by breaks. This is known as the testing effect. spacing effect. generation effect. retrieval effect.

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2. Conic Sections a) Graph the conic section defined by the equation $x - 4 = -2(y + 1)^2$. Graph the axis of symmetry as a dotted line and name the conic section type. b) Consider the conic section which passes through $(-3, 1)$ and $(1, 5)$ and which has axes of symmetry at $x = -3$ and $y = 5$. Write an equation to represent the conic section and name the conic section type. c) Which types of conic sections have two axes of symmetry? Circle all that apply. Circle Ellipse Parabola Hyperbola

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In activity 4, baking soda or sodium bicarbonate (NaHCO3) is combined with vinegar or acetic acid (HC2H3O2) and undergoes a double displacement reaction. Answer the following question about the reaction: 1. For the double displacement reaction, complete the reaction below by writing the product(s) of the reaction: • In the first box put the numerical prefix to balance the equation (ex, 1, 2, 3 etc) • In the second box put the formula of the product (ex, H2O or NH3) • In the third box, put the state of the product (ex, solid, liquid, gas, or aqueous) NaHCO3 (s) + HC2H3O2 (aq) --> NaC2H3O2 (aq) + 2. After the displacement reaction, the product in part 1 undergoes a second decomposition reaction which produces gas. Predict the gaseous product for this reaction:

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HW#3-Ch12 undamental Problem 12.34 < 7 of 8 The platform is rotating about the vertical axis such that at any instant its angular position is $\theta = (4t^{3/2})$ rad. where $t$ is in seconds. A ball rolls outward along the radial groove so that its position is $r = (0.1t^3)$ m. where $t$ is in seconds. (Figure 1) Part A Determine the magnitude of the velocity of the ball when $t = 1.9$ s. Express your answer to three significant figures and include the appropriate units. $v = 5.78 \frac{m}{s}$ Figure < 1 of 1 > Previous Answers ? Correct Part B Determine the magnitude of the acceleration of the ball when $t = 1.9$ s. Express your answer to three significant figures and include the appropriate units. $a = 15.314 \frac{m}{s^2}$ Submit Previous Answers Request Answer Incorrect; Try Again; 5 attempts remaining Provide Feedback Next >

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9. (1 point) Given the valid path name below, on a UNIX system, select all of the statements you can know to be true. /home/jappavoo/hello.mp3 It's a file that contains lines of ASCII text. It names a unique file. It is audio file. It contains more than zero bytes of data. It names a unique directory.

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Problem 7: As part of an obstacle course, an athlete must kick a soccer ball into a 1 m wide and 10 m deep pit such that the ball hits a target at the bottom of the pit. In practice, a dynamics student that is participating in the race finds that he consistently kicks the soccer ball such that it rolls into a pit with a velocity of $1 \frac{m}{s}$. He calculates that if he does so, the soccer ball will bounce off the far wall of the pit 4.9 m below the surface and head towards the target. If the coefficient of restitution for the impact of the ball against the far wall of the pit is 0.8, determine the distance x shown where the target would actually have to be placed such that the student would hit the target. The size of the ball and the target are negligible relative to the dimensions of the pit. Answer: x = 0.658 m

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For an allowable bending stress of 8 MPa, find the maximum load P?

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Calculating deposit needed You put $7,000 in an account earning 5%. After 3 years, you make another deposit into the same account. Six years later (that is, 9 years after your original $7,000 deposit), the account balance is $24,000. What was the amount of the deposit at the end of year 3? The amount of the deposit at the end of year 3 is?

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Countdown timer between 2 dates Hi I wondering if there is a formula that will allow me to calculate the difference in days between two dates, this should change each day accordingly. so if the first date is 02/06/14 and the second is 15/06/14. Is there a formula that will count how many days left till the 15/06/14, this should change each day by getting smaller. For example, today is 02/06/14, means there is 13 days between. today is 04/06/14, then there is 11 days between up till 15/06/14 where there will be 1 or 0 days, then it stops counting afterwards? I have checked everywhere but cannot find help.

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4. Add: 4 1/3 and 7 1/2 A. 13 5/6 B. 11 5/6 C. 12 5/6 D. 10 5/6

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