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- MO21. The brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. The following data (required current) were collected from a sample: 343.8, 369.3, 380.6, 339, 369.7. Compute a 90% confidence interval on the brightness of the television tubes that has 90% of the values. Input the value the upper limit of the Tolerance Interval in the blank provided up to 2 decimal places. Provide all the necessary solutions in the submission for both upper and lower limit. Upper limit of the interval is Blank 1 Blank 1 Add your answerenumerate 5 examples of sound- reflecting materials (solid materials)A micrometer is connected to the movable mirror of an interferometer. When the micrometer is tightened down on a thin metal foil, the net number of bright fringes that move, compared to closing the empty micrometer, is 296. What is the thickness of the foil? The wavelength of light used is 589 nm.
- Two parallel plates of area 100 cm2 are given charges of equal magnitudes 0.000000445 C but opposite signs. The eclectic field within the dielectric material filling the space between the plates is 1400000 V/m. Calculate the dialectic constant of the material * 7,2 3.6 O 2.7The sinusoidal waveform of an ac circuit shows that the: <-90% O the current is leading the applied voltage by 90 O applied voltage is leading the current by 90 O applied voltage is lagging the current by 90 applied voltage is in phase with the currentA beam of light passes from glass with refractive index 1.58 into water with a refractive index 1.33. The angle of the refracted ray in water is 58.0°. a) Draw a sketch of the situation showing the interface between the media, the normal line, the incident ray, the reflected ray, the refracted ray, and the angles of these rays relative to the normal line. b) Calculate the angle of incidence in the glass.
- 98% ?. l3Ī 7 I 16:58 Month 1.pdf Q1:- The coplanar force system shown in Figure below is subjected to a couple moment (M) and three forces. Two forces are known in magnitude and direction and shown in the Figure (150 N and 60 N). The third force is passing through the center of the semi-circle (point C). The resultant of all these forces is a single couple (750 N.m) counterclockwise. a) Determine the magnitude and direction of the third force. b) Determine the magnitude of moment (M). Replace the couple (M) by two vertical equal forces acting at D and E. d) Replace the force (150 N) by and single force at D and a couple. Radius = 5 m 150 N E В M 60 N 4 A F. Q2:- Determine all forces acting on member DEF of the frame shown in Figure below:- 150 Ib/ft F3.0 m -3.0 mAn industrial device with a weight sensitive to the weight of one ton is transported by a heavy vehicle. The device is mounted on a special base that when moving the vehicle, vibrates with a range of 5 cm with an angular frequency of 220rad / sec.Withstands about the stiffness of the desired base so that 80% of the vibration transmitted to the device guide TR = 0.2what are the names of the two isotopes based on the graph of the photopeak of the isotope of 100kev and 360 kev 4. Identify the isotopes below, used in GC imaging, from the following spectra: (2x2=4) 10 50 100 150 Primary photons Scattered photons 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 50 200 250 300 350 100 150 200 250 300 Energy (keV) 350 400 450 500 Energy (keV) a) b)