Numerade

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Does the static frictional force on the ladder from the ground become larger, smaller, or stay the same (in magnitude)? Stay the same Larger Smaller

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In a Marine ecosystem, Seaweeds and phytoplankton are considered as___________. Group of answer choices producers filtrators consumers decomposers

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After an infection, many dead and fragmented bacterial cells must be filtered from the body. Which of the following cells will clear out the cell debris? Multiple Choice Lymphocytes Mast cells Macrophages Cytokines

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7. What is the steric number for SF$_4$?

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How does the rate law describe the relationship between reaction rate and concentration?

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\[ \begin{array}{ll} \mathrm{Fe}^{3+}(a q)+e^{-} \rightarrow \mathrm{Fe}^{2+}(a q) & E^{\circ}=+0.77 \mathrm{~V} \\ \mathrm{~Pb}^{2+}(a q)+2 e^{-} \rightarrow \mathrm{Pb}(s) & E^{\circ}=-0.13 \mathrm{~V} \end{array} \] Based on the standard reduction potentials given above, what is the value of $ E^{\circ} $ for the reaction represented below? \[ \mathrm{Pb}(s)+2 \mathrm{Fe}^{3+}(a q) \rightarrow \mathrm{Pb}^{2+}(a q)+2 \mathrm{Fe}^{2+}(a q) \quad E^{\circ}=? \] Choose 1 answer: (A) $ 0.64 \mathrm{~V} $ (B) $ 0.90 \mathrm{~V} $ (c) $ 1.41 \mathrm{~V} $ (D) $ 1.67 \mathrm{~V} $

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A new phone application is introduced to the kindergartens in Gothenburg. The following logit model (logistic regression) is used to find the association between the usage of the app and each of the explanatory variables; private (private =1, public=0) and size (the number of the children in the kindergarten). \ln\left(\frac{P[Y = 1]}{P[Y = 0]}\right)_{\text{Private, Size}} = \beta_0 + \beta_1 \text{Private} + \beta_2 \ln(\text{Size}) \ln\left(\frac{P[Y = 1]}{P[Y = 0]}\right)_{\text{Private, Size}} = 0.6 + 0.8 \text{Private} + 0.5 \ln(\text{Size}) A) What are the odds of adopting the new app by a public kindergarten with 50 children? B) Find the probability of adopting the new app by a public kindergarten with 50 children. C) How do you interpret the coefficient $\beta_1 = 0.8$? D) Find the marginal effect of the variable Size for public kindergartens with 50 children.

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The gravitational field at the Earth due to the Moon is about? (G = 6.67 \times 10^{-11} \text{ N } \text{m}^2/\text{kg}^2, the mass of the Moon is 7.35 \times 10^{22} \text{ kg, and the distance to the Moon is 3.85 } \times 10^8 \text{ m)} Multiple Choice 2.90 \times 10^{-5} \text{ N/kg away from the Moon.} 3.31 \times 10^{-5} \text{ N/kg toward the Moon.} 4.01 \times 10^{-5} \text{ N/kg toward the Moon.} 3.31 \times 10^{-5} \text{ N/kg away from the Moon.} 7.50 \times 10^{-5} \text{ N/kg away from the Moon.}

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Pabrik Stainless Steel menghasilkan produk SS 18/8 : Artinya produk stainless steel mengandung $ 8 \% $ berat $ \mathrm{Ni} $ (nikel) dan $ 18 \% $ berat $ \mathrm{Cr} $ (chrom). Bahan baku yang dipakai : a. Feronikel dengan kandungan $ \mathrm{Ni}=18 \% $; Yield $ =95,00 \% $ b. Ferochrom dengan kandungan $ \mathrm{Cr}=52 \% $. Yield $ =95,00 \% $ c. Raw material lainnya : - Fe scrap - Stainless steel scrap - FeSi - Fe Mn $ =22 \% $ dari berat SS $ =13 \% $ dari berat SS $ =3 \% $ dari berat SS $ =1 \% $ dari berat $ \mathrm{SS} $. Untuk menghasilkan 1 ton Stainless Steel, hitung Bahan Baku yang diperlukan, yaitu : a. Bahan Baku Feronikel b. Bahan Baku Ferochrom c. Bahan Baku Fe Scrap d. Bahan Baku SS Scrap e. Bahan Baku FeSi f. Bahan Baku FeMn ton /ton SS ton /ton SS ton /ton SS ton /ton SS ton /ton SS ton /ton SS

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What sample size is needed to give a margin of error within $\pm 3$ in estimating a population mean with 99\% confidence, assuming a previous sample had $s = 20$. Round your answer up to the nearest integer. sample size =

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