Question Please solve this : A particle with positive charge q is moving with speed v along the z axis toward positive z. At the time of this problem it is located at the origin, 1=y=z=0. Your task is to find the magnetic field at various locations in the three- dimensional space around the moving charge. (Figure 1) Part B Find the magnetic field at the point ří = I1i. Express your answer in terms of p, q, v, and 11, and use i, j, and for the three unit vectors. View Available Hint(s) IVO AED 6VxVx X x XI X.101 BGF)- Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining The correct answer does not depend on: i Figure < 1 of 1 Part C Find the magnetic field at the point F2 = y1j Express your answer in terms of Ho, q, v, 11, and yı, and use i, j, and k for the three unit vectors. (x1.0, 21) IVO ACO yi ? .4 B(+2) = * Submit Request Answer

A 50-g weight is hung at the 20-cm mark of a meterstick and a 100-g weight is hung at the 70-cm mark. At what point must the meterstick be supported for it to be in rotational equilibrium? The weight of the meterstick is negligible. O at the 56.67-cm mark. at the 46.67 cm mark. O at the 53.33-cm mark. O at the 43.33 cm mark.

This is a two-part question Consider the system of linear ODES de 41 (t) = 60 yy (t) – 16 y2 (+) + 77 73 (t). 92 (t) - 740 (t- 189 yą (t) +980 yz (t). dt 93 (t) = 96 y1 (t) - 24 32 (t) + 129 yg (t). (31(t) The system of equation written as y' (t) = Ay(t), where y(t) = 32(t) 33(t) (a) Enter the matrix A in the box below. ab sin(a) a f z 8 22 B 000 3 (b) Given that the matrix A has eigenvectors with respective eigenvalues 3.-4.1 Enter the solution of y(t) and yz(t) in Maple syntax, making sure the answer is consistent with the given form of y1 (t) 31(t) = 4A 43t+Be-4t-5 Cet y2(t) 33(t)

Identify the particle X in the following decay. (Hint Use lepton number conservation) µ + ›e ++ve+X V e 12° |>= V V μl Identify the particle X in the following decay. (Hint Use lepton number conservation) µ + ›e ++ve+X V e 12° |>= V V μl

1. For a Solid Oxide Fuel Cell that uses hydrogen as fuel, calculate the maximum energy output possible at 800°C. 2. For a methanol fuel cell with total reaction equation and AG given, calculate the open circuit voltage. CH;OH + 3/2 O2 2H2O + CO2 AG = -698.2 kJ/mol 3. H2O is electrolyzed using an SOEC reactor. Inlet of the cathode has 30ml/min H20, outlet of anode has 5ml/min O2, and applied current is 2A. Calculate the H2O conversion and Faradaic efficiency (both in %). (Flow rates are given for gas phase in STP)

please help. with brief is possible. thank youwith 1 a, 1 b, 2 and 3 EXPERIMENTS Post-Laboratory Questions 1. In Step 24, you were instructed to wash the precipitates on the filter paper. a. Why was it necessary to wash the precipitate before drying. b. You were instructed to use dilute nitric acid to wash silver chloride, and to use distilled water to wash barium sulfate and calcium carbonate. Why was water used, in place of nitric acid, to wash barium sulfate and calcium carbonate? 2. Some precipitate is lost when the filter paper and precipitate is removed from the drying oven. The her paper and precipitate is subsequently weighed. Would the calculated percent by mass of the unknown lon in the compound be higher or lower than the true value? Justify your answer with an explanation 3. If the filter paper containing the precipitate is significantly charred in the drying oven because the oven temperature is to high, would the calculated percent by mass of the unknown lon in the compound be higher or lower than the true value? Justify your answer with an explanation

The probability density of a random variable $x$ is $$f(x)=a\ \cdotp x^2\ \cdotp \mathrm{e}^{−kx}\ (k>0,\ 0\leq x\leq \infty)$$ Then, the coefficient $a$ equals $$(i)\frac{k^3}{2}\ \ \ \ (ii)\ k^3 \ \ \ \ (iii)\ k^2 \ \ \ \ (iv)\ k \ \ \ \ (v) \frac{2\ \cdotp k}{\pi}$$ Here is what I've tried: $$\int_0^\infty f(x)\mathrm{d}x = 1$$ $$\int_0^\infty\left(a\ \cdotp x^2\ \cdotp \mathrm{e}^{−kx}\right)\mathrm{d}x = 1$$ solving by parts gives result as $$\left[-\frac{a\cdotp\mathrm{e}^{-kx}}{k}\cdotp\left(x^2+\frac{2x}{k}+\frac{2}{k^2}\right)\right]^\infty_0 = 1$$ Now, here I'm stuck. Can't find a way to solve $a$.