Locate the centroid of the plate area shown in Figure. (SN/10) ft 1ft hat 2 ft- (MN/10) ft
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where sn 113 and mn is 76
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- Sailors use the following quadratic function to estimate wave height h, in feet, from wind speed w, in miles per hour: h = 0.02w2. (a) What wave height does the formula give for a wind speed of 35 miles per hour? ft(b) A sailor observes that the wave height is 6 feet. According to the formula above, what is the speed of the wind? (Round your answer to two decimal places.)IA-1 A speaker is sitting on level ground far from other objects. It produces a 400HZ tone with a sound output power of 7.50W. a) Find the intensity, pressure amplitude and displacement anmplitude of the sound waves 4.00m from the speaker. b) Find the wavelength of these sound waves.2.6 times that developed in the aluminum: f, 2.6f, Because P AJ Apanhola + A,J. (2.6) (0.5) () + (0.5) () 5000, we have f. 2777 lb/in. and f- 7220 lb/in.¹ (The nA, value is often called a transformed area; the steel is considered to have been transformed into a modified area of aluminum that is structurally equivalent.) To find fal deformations, fa/B. 2777/11,300,000 0.000246 and AL, L-0.00245 in =/ft ANA QUESTIONS 2.1. A force of P defined by the angle 0,= 75° to the horizontal acts through a point. What are the components of this force on the x- and y-axes? [See Figure 2.59(Q1).] Questions. 211- L/2- 2.2. The components of a force on the x- and y-axes are 0.50P and 1.50P, respectively. What are the magnitude and direction of the force? [See Figure 2.59(Q2).J Answer: 1.58P at 0,= 71.5°. 2.3. The following three forces act concurrently through a point: a force P acting to the right at 0, 30° to the horizontal, a force P acting to the right at 0,= 45° to the hori- zontal, and a force P…
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- The answer for the first box is, 1808,3616, 0, 5424, 7232 (in unit of N/C). For the second box is, right, downward, 0 (no direction), left, upward. And for the third box is, 3.9, 2.0, 2.6, 7.9, 1.5 (in unit of cm)When a particular substance crystallizes, it forms a body-centered cubic unit cell. It has a molecular weight of 100.11 g/mole. The unit cell edge length is 341 pm. Calculate the density of this substance in g/cm3 .2.3 The average annual per person energy use in Cameroon is 14.3 GJ. Assume that 75% of this energy is used for cooking and heating. Compute the required mass of dry wood needed for cooking and heating. Repeat the calculation assuming only charcoal is used and again assuming only dried animal dung is used.
- A Campbell's tomato soup has a density of 1.05 g/cm³. How many grams of soup are in 5.00 × 10-2 m³ of soup? O 525 g 5, 250 g 52, 500 g 525, 000 g. Rank the following five quantities in order from thelargest to the smallest. If two of the quantities are equal,give them equal rank in your list. (a) 0.032 kg (b) 15 g(c) 2.7 3 105 mg (d) 4.1 3 1028 Gg (e) 2.7 3 108 mgThe density of platinum is 21.45 x 103 kg/m3. a. Calculate the volume (in m3/atom) occupied per platinum atom b. Estimate the atomic diameter (in m);(The estimate uses the approximation that it is a cubic volume) c. Using this estimation, calculate the thickness of a metal foil (in m) containing 2.0 x 101 atomic layers of platinum.