Questions asked
Question 9 of 10 9. Carmen is learning to stack blocks. The teacher prompts Carmen with "Stack the next block" and, if she doesn't comply within four seconds, helps her put the block on top of another block. What strategy is Carmen's teacher using? O time delay O discrete trial teaching O prompting O structured play
Disconfirmation bias is the tendency to extend extra critical scrutiny toward claims you disagree with in the hopes of finding any reason to reject them. Describe a specific moment from your life in which you exhibited disconfirmation bias. Now, explain why you think you exhibit(ed) disconfirmation bias. What was it about this specific topic that led you to be so skeptical? Finally, explain how you could go about counteracting this disconfirmation bias. Think back to that moment when you exhibited disconfirmation bias: if you had a better understanding of this tendency, what could you have done differently? Now look forward: what could you start doing today to begin to overcome this tendency toward disconfirmation bias?
A(n) __________ norm concerns our perceptions of the way people actually behave in a given situation, regardless of whether others approve or disapprove of the behavior. prescriptive descriptive injunctive deductive
What is the mass of a single chlorine molecule? 70.90 g 1.177 \times 10^{-22} g 35.45 g none of these 5.887 \times 10^{-23} g
1. Bernoulli's equation is: \frac{P}{\rho g} + \frac{v^2}{2g} + z = constant where P is pressure, $\rho$ is density, g is gravity, v is velocity and z is height. Show that the units of each component are the same.
Question 4 The solid mainshaft for an aeroengine rotor experiences major (once per flight) cycles, consisting of R = 0 torque of 100 kNm and axial load of 100 kN cycles, and superimposed (in-flight) minor cycles, consisting of a rotating bending moment of 20 kNm. The yield stress of the material is 1500 MPa. Fatigue tests on the material gave the data shown in the table below. Table Q4. Alternating stress (MPa) Cycles to failure 500 600 $1\times10^6$ $1\times10^5$ (a) Use the Soderberg equation, with maximum principal stress as the fatigue loading parameter, to determine a suitable diameter for the shaft on the basis of major cycle loading only. Use a factor of safety of 3 with a notch factor for bending stress of 3. The design lifetime is 40,000 flights. Hint: you will need to use an iterative approach to solve for diameter. [15] (b) Determine the reduction in life due to the additional effect of 500 minor cycles per major cycle. Hint: use Miner's rule for cumulative fatigue damage. [5]
5. Two kids are sitting on either side of the pivot of a 15kg, 2m long seesaw. The pivot is displaced by 0.3 m away from the center of mass of the seesaw. Each child is sitting at the end of the board. If one child is 30kg, and the seesaw is perfectly balanced, what is the mass of the other child? 6. A cube of ice (literally a cube, with side length 0.02m and density 0.92 kg/m^3) is floating in vodka (density 0.95 kg/m^3). What is the fraction of the ice submerged in the vodka if it is in equilibrium?
ODD and EVEN QUESTION 3 Write a user-defined function to compute the sum of the following geometric series. f(x) = 1 + x + x^2 + x^3 + ... + x^n f(x) = \sum_{i=0}^{n} x^i For a given x and n. Therefore the inputs the function must be x and n and the output must be the sum of series f(x). Run this UDF for n = 3 and x = 2.
Prepare clean and clear solutions to the following problems. A laboratory runs a solids test. The weight of the crucible is 48.6212 g. A 100-mL sample is placed in the crucible and the water is evaporated. The weight of the crucible and dry solids is 48.6432 g. The crucible is then placed in a 600 °C furnace for 24 hours and cooled in a dessicator. The weight of the cooled crucible and residue is 48.6300 g. Find the concentration (in ppm) of the different types of solids. A toxic contaminant is released 1 km upstream of a drinking water supply well. The relevant aquifer properties are as follows: hydraulic conductivity 10-5 m/s; porosity 0.3; hydraulic gradient 10-2. Determine how long it will take for the contaminant to reach the drinking water supply well. THANK YOU!
In the given set of data, determine the variance and standard deviation. Set A 45,56,52,42,59 Set B 12,13,14,15,16
