Bragg angle Sample A Sample B Sample C 01 10.8° 13.7° 22.0° 02 15.3° 15.9° 37.7° 03 18.9° 22.8° 45.8° 04 22.0° 27.0° 59.8° 05 24.7° 28.3° 70.4°
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- The accepted value of the density of aluminum is 2.70 g/cm3 while our computed value is 2.8 g/cm3 . What is the percent uncertainty of our experimental density (observing correct significant figures)? a. 0.037 b. 3.7 c. 3.70 d. 4A magnetic circuit of silicon has a length L1=5 cm, cross section area A=120 mm² and L2=2cm long with cross section area 80 mm², with relativity permeability 1200. A current 1-60mA flows in N= 50 turn a coil. Calculate 1- Total reluctance 2-The flux densityCalculate the wavelength radiated by the hot plate at 537 °C. A.5397 nm O B. 3580 nm OC.1556 nm OD.2347 nm O E. 3247 nm
- 10. What is S/N ratio for a system that has a pressure of x psi and a sample standard deviation of Vx for 1/x observations? Simplify your answer to the lowest possible terms. For the above system, what is your sample standard deviation when S/N ratio = 5? (Use nominal the best choice for loss function)1. What is the expression for the uncertainty in finding the fractional value Y =(mgL^3)/(4wdh^3)assuming an uncertainty δm in m, uncertainty δL in L, uncertainty δw in w, uncertaintyδh in h, and uncertainty δd in d . Refer to the section on uncertainty calculations formore details. 4. Using equationY =(mgL^3)/(4wdh^3)show that the SI units for Y is Pa.A marathon runner completes a 42.188-km course in 2 h, 30 min, and 12 s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed?
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- Determine the maximum wavelength for temperature 300K C. 810000nm D. 31nm A. 9666nm B. 810nm А. В. C. D.Which one of the following BMI is the normal range? A. 30 kg/m ^2 B. 20 kg/m ^2 C. 40 kg/m ^ 2 D. 10 kg/m ^2Calculate the value of the uncertainty in the energy of the excited state of an atom when the electron is lived in excited state for 8.4x10 s. A) 1.33×10-34 J B) 6.28x10-33 J C) 3.28×10-22 J D) 2.68×10-30 J