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jim calderon

jim c.

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Problem 4. Two point charges shown on Fig. 4 produce the net electric field shown at point P. d P E d q Figure 4: Two point charges. (a) What can you conclude about the sign and magnitude of the charge shown in grey? (b) If the lower charge were negative instead, would it be possible for the field to have the direction shown in the figure? Explain/show your reasoning.

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(a) sin(sin^(-1).7) (b) tan^(-1)(tan((4\pi )/(3)))

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b. \int_2^5 (1-3x^(3))dx b. $$\int_{2}^{5} (1 - 3x^2) dx$$

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Which alkanes are gases at room temperature? 1-18 carbon atoms in the alkane 1-5 carbon atoms in the alkane 1-4 carbon atoms in the alkane 1-16 carbon atoms in the alkane

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A chemist carefully measures the amount of heat needed to raise the temperature of a 787.0g sample of a pure substance from −0.3°C to 8.2°C . The experiment shows that 3.0kJ of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 2 significant digits. ⋅J⋅g−1K−1

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The genetic make-up of an organism is known as _____. phenotype genotype trait character

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What principle in holy war ideology do the contrasting conquest stories of Jericho and Ai in Joshua reveal?

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Question 19 (0.4 points) Which of the following definitions represents a data scientist? extracts knowledge from data by performing statistical analysis, data mining, and advanced analytics on big data to identify trends, market changes, and other relevant information mathematical formulas placed in software that performs an analysis on a dataset the process of identifying rare or unexpected items or events in a dataset that do not conform to other items in the dataset a data value that is numerically distant from most of the other data points in a set of data

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Stokes' Theorem: Let S be an oriented finite surface with normal vec(n). Assume S is bounded by a closed, piecewise smooth curve C whose orientation is induced by S. Let vec(F) be a continuous vector field defined on S with continuous partial derivatives at each non-boundary point of S then, ∫_C vec(F)*dvec(r)=∫_C vec(F)*vec(T)ds=∬_(S)curlvec(F)*dvec(S) If C is parametrized by vec(r)(t) for a<=t<=b then ∫_C vec(F)*dvec(r)=∫_a^b vec(F)*vec(r)'(t)dt If S is an explicit surface defined by z=g(x,y) and the curlvec(F)=(:M,N,P:) then ∬_(S)curlvec(F)*dvec(S)=∬_(R)(-g_(x)M-g_(y)N+P)dA 5. Verify the Stoke's Theorem for vector field vec(F)=(:y^(2),z^(2),x^(2):) where S is the first octant portion of the plane 2x+3y+z=6. Stokes' Theorem: Let S be an oriented finite surface with normal n. Assume S is bounded by a closed, piecewise smooth curve C whose orientation is induced by S Let F be a continuous vector field defined on S with continuous partial derivatives at each non-boundary point of S then, dr= F.Tds= curlF.ds If C is parametrized by(t) for a t b then f.Fdr = JF '(t)dt If S is an explicit surface defined by z= gx,y) and the curlF=(M,N,P) then JJs curlFdS=JfR(-gxM-gyN+P)dA 5. Verify the Stoke's Theorem for vector field F = (y2, z2, 2) where S is the first octant portion of the plane 2x+3y+z=6.

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A researcher believes that getting a tattoo makes people become more outgoing, brave, and confident. To test this, he finds 100 people who are willing to get a tattoo and randomly assigns half of them to get a tattoo on their shoulder blade and randomly assigns the other half of participants to get a temporary tattoo in the same spot. The researcher asks everyone to keep a daily diary that his research team will later code for feelings of outgoingness, bravery, and confidence. Once the study is underway, the researcher discovers that four of the 100 participants already had some tattoos, and he worries that they were already outgoing and brave. Should the researcher be able to conclude that the IV caused observed changes in the DV? Why or why not?

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