Numerade

Questions asked

BEST MATCH

Two events occur in an inertial system K at the same time but 4 km apart. What is the time difference measured in a system K' moving parallel to these two events when the distance separation of the events is measured to be 5 km in K'?

View Answer

BEST MATCH

_____ is characterized by unilateral swelling of legs, warmth/redness, inflammation, and venous dilation

View Answer

BEST MATCH

Please answer the following fill in the blank questions: 1. What is the shape of the bacteria in the image: 2. If it was pink in color after undergoing a gram stain, it would be considered: 3. What is the structure labeled "A" on the image of the bacteria: 4. What is the structure labeled "B" on the image of the bacteria:

View Answer

BEST MATCH

1. Assuming the wave-particle duality relation given by the deBroglie formula A = h/p, derive the relation between the wave-number and the particle velocity v. Remember that = 2r/A. 2. Show, by explicitly checking, that the generic traveling wave solution yxt = Aeir-wt solves the first order wave equation given by y Oy =ih (1) 2m Ox2 Ot when the deBroglie relation is used to relate the particle velocity and wave-number as you have obtained in the question above (h = 2xh). 3. Show by separation of variables that the Schrodinger equation hxt Oxt 2m supports stationary solutions given by x,t=xe-iEt/h (2) (3) Derive the resulting differential equation for 1 4. Find solutions to the equation for assuming that the particle that is described by the wave is confined to a 1D box of length L. That is, the wave functionx must go to zero at x =0 and x = L. Show that the solutions are quantized by applying the boundary conditions, and find the formula for the allowed energy levels, E, Find the constant factor in the solution by applying the "normalization" condition: dxx2=1. (4) This condition allows us to think of |([2 as a density distribution so that the density of the particle in the interval [] is given by p(x1,x2= dx|x2 (5) In our specific case, the constraint that the particle is confined to [0,L] is then consistent with P0,L= 1, following the expectation that the density integrated over all space should give 1 since we have one particle. Does the constant factor you obtain this way depend on the energy level n? 5. The model that describes particles as waves and leads us to a wave equation for a particle that carries momentum changes what sort of questions we can ask when it comes to measurements. Which of the following questions make sense in this new framing of wave-particle duality, and which ones don't. For each, provide a rationale, remembering that for a fixed time, the wave has a static shape, i.e., it is frozen and not moving. Let us assume we have the capacity to freeze time like that, so that the temporal flucations are not limiting us: a) Where is the particle at a given time? (b) What is the particle's momentum at a given time? (c) What is the average position of the particle at a given time? (d In what region do I expect to find the particle if I try to measure its location?

View Answer

BEST MATCH

Joe wants to form a company, and his aim is to do gold mining. His advisor recommended him to establish a 'No Liability' company, but he is not sure whether it is a good idea considering the question of raising unpaid capital in the future after the company is registered. Is he right? a. Yes, Joe is right because in an NL company, shareholders are not required to pay their unpaid share price on share calls. b. No, his advisor is right because there is no difference between an NL and other companies. c. Yes, Joe is right since an NL company can raise unlimited capital. d. No, his advisor is right as an NL company is an unlimited company.

View Answer

BEST MATCH

An increase in both equilibrium price and quantity is a consequence of a(n): increase in supply. increase in demand. decrease in demand decrease in supply

View Answer

BEST MATCH

For the circuit shown in the given figure, assume that $\vec{V_g} = 80\angle 0^\circ$ V rms, $R_g = 11$ ohm, and $R_o = 30$ ohm. Assume an ideal transformer. Find the power $P_{load}$ consumed by $R_o$. (Round the final answer to two decimal places.) The power $P_{load}$ consumed by $R_o$ is 51.60 ± 2% W.

View Answer

BEST MATCH

b -1 b 1 1 2 x1 -1 F1 F3 Y x2 1 -1 F2 2

View Answer

BEST MATCH

QUESTION 1 (Data Exploration) Data exploration starts with inspecting the dimensionality, and structure of data, followed by descriptive statistics and various charts like pie charts, bar charts, histograms, and box plots. Exploration of multiple variables includes grouped distribution, grouped boxplots, scattered plots, and pairs plots. Advanced exploration presents some fancy visualization using 3D plots, level plots, contour plots, interactive plots, and parallel coordinates. Refer to Iris data and explore it by answering the following questions: i. Check dimension of data and name the variables (from left) using \"Sepal.Length\" \"Sepal.Width\" \"Petal.Length\" \"Petal.Width\" \"Species\". ii. Explore Individual variables. a. Choose \"Sepal.Length\". Provide descriptive statistics (summary) which returns the minimum, maximum, mean, median, standard deviation, first quartile, third quartile and interquartile range, skewness and kurtosis. Interpret the output based on location measure (mean), dispersion measure (standard deviation), shape measure (skewness). b. Plot the histogram. Does the distribution of \"Sepal.Length\" is symmetrical? c. Plot pie chart for \"Species\". iii. Explore Multiple variables. Consider \"Sepal.Length\" \"Sepal.Width\" \"Petal.Length\" \"Petal. Width\". a. Calculate covariance and correlation. b. Plot side-by-side box plot and whiskers, where it shows the median, first and third quartiles of a distribution and outliers (if present). Compare the distribution of four variables and observe the outlier. c. Plot a matrix of scatter plot. Explain about the correlation of variables. iv. For advanced exploration, choose \"Sepal.Length\" \"Sepal.Width\" \"Petal.Width\". Produce 3D scatterplot. Explain the plot.

View Answer

BEST MATCH

ECE 271 Homework #3 (Due Wednesday, 17 Feb) 0/1 M 0/0 1/0 1/0 N P 0/0 1/1 The above Mealy FSM receives an infinite sequence of logic 1's and 0's as input. It outputs a logic 1 every time two consecutive logic 1's or two consecutive logic 0's are input. (Convince yourself that is true.) 1) (2 points) Prove the FSM cannot be made with a fewer number of states. 2) (4 points) Give a complete schematic for the FSM. (Use state assignments M = '01', N = '10', P = '11'.) 3) (2 points) Construct a timing diagram for your design from the previous problem. Assume the input sequence is r = '1011010001'. (The most significant bit is input first.) 4) (2 points) Assume the FSM is physically implemented in a PAL16R4. Explain how you would initialize the FSM. (Hint: Consider how you would synchronously initialize the FSM)

View Answer

marilyn s.