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Please help me solve the question of reaction force 50kN/m 20kN/m A B 45° 4m

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A cosmic ray proton moving toward the Earth at 4.5 × 107 m/s experiences a magnetic force of 1.8 × 10-16 N .

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1. Find the quadratic Taylor polynomial for the function [6] \[ f(x, y)=\frac{x-y}{x+y} \] about the point $ (1,1) $.

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When the separation is increased to 2d, the reflectivity at the resonance frequency is increased to 25%. What would be the reflectivity if the separation is increased to 3d?

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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately $\hat{p} = 76\%$. You would like to be 95\% confident that your estimate is within 4\% of the true population proportion. How large of a sample size is required?\nDo not round mid-calculation.

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Question 17 1 Arbitration is a form of soft power in the sense that it involves influencing other nations through persuasion rather than coercion. O True O False Question 18

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Ancient writings from the Western hemisphere rarely mention water, but often mention wine and beer. This is likely because: most people were alcoholics due to the stress of life back then water was often polluted, while wine and beer had antiseptic effects ancient writings show it was known that wine reduced heart disease water was not available to most people, but wine and beer were

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Question 16 0.33/1 pt 2-3 19 Details Part 1 of 2 A confidence interval for the population mean number of US states Americans have visited was found to be 11.4 to 12.2. Find the midpoint of this confidence interval: 11.8 Part 2 of 2 State the confidence interval in the form $\bar{x} \pm$ margin of error:

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What type of algorithm would you use to segment customers into a groups ? Assume the groups are not already labeled.

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2 Fe$_2$O$_3$ $\longrightarrow$ 4 Fe + 3 O$_2$ $\Delta H_{rxn}$ = +824.2 kJ The decomposition of 62.0 g of Fe$_2$O$_3$ results in the absorption of 3.20 $\times$ 10$^2$ kJ of heat. the release of 25600 kJ of heat. the release of 1.60 $\times$ 10$^2$ kJ of heat. the absorption of 25600 kJ of heat. the release of 3.20 $\times$ 10$^2$ kJ of heat. the absorption of 1.60 $\times$ 10$^2$ kJ of heat.

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kevin b.