If the object below has a uniform mass distribution, a=4 m, b = 8 m and c = 16 m, find the centre of gravity of the object in the sketch below is (x;y) = ( 8.648 ; 3.543) m NB: Just type the final numeric answers for the x and y component of the COM.
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- 1. The figure shows the natural loga- rithm of the particle density of air (p = 1.225 kg m-3 at h = 0) for a constant temperature. Given that the linear fit to the data is In(n) = 58.533 at h = 0 and In(n) 57.386 at h = 10ª m, stating any assumptions used, 10 2000 4000 6000 8000 Height, h [m] (a) calculate the average mass of an air particle, (b) determine the temperature of the air. Number density, In(n) [m] 57.5 58 58.5A diver 50 m deep in 10∘C fresh water exhales a 1.5 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 ∘C ? Assume that the air bubble is always in thermal equilibrium with the surrounding water.Show that the coefficient of area expansion, (∆A/A)/∆T, of a rectangular sheet of the solid is twice its linear expansivity, α1.
- One Helium atom weighs 26.2 X 10-7 kg. How many He atoms would weigh 262 kg O a. 10° О. 107 Oc 10- O d. 10-71.1 m3. The mass of the balloon 3. Consider a hot-air balloon with fixed volume VB envelope, whose volume is to be neglected in comparison to VB, is mL balloon shall be started, where the external air temperature is T = 20°C and the normal 0.187 kg. ThePHET Density X Assignme x → Topic9Wri x y! A diver st X Ⓒ File | C:/Users/marko/Downloads/Topic8WrittenPortion_6_7.pdf Netflix Party - Chro... 90°F Sunny Topic8WrittenPortion_6_7.pdf 1 2 3 Assignments M Gmail D YouTube → Maps A diver st X Netflix CA steel ba x Netflix 1 2/3 | Chegg.co X Log In | TherapyPor... | Topic8W x 100% + | A y! A child's 1 > DELL y! A child's t X A child's toy has a solid plastic disc of radius 10cm that can be rotated about its center. Child A applies a force of 30N tangent to the edge of the disc to cause it to rotate counter clockwise. Child B also applies a force of 20N tangent to the edge of the disc to cause it to counter clockwise. The net torque applied to the disc causes an angular acceleration of 8.33rad/s^2. a) What is the moment of inertia of the solid plastic disc? (answer: 0.6kgm^2) b) What is the mass of the solid plastic disc? (answer: 120kg) C The absol X + I ➡I 0 Q.1 7:23 PM 7/19/2022 x : ⠀
- An irod rod undergoes an increase in temperature of 20 Centigrade degrees. What percent of the original length is the elongation? Use a of iron = 10×10^-6 per centigrade degree.Given: Calculate the rate of conduction in watts through a 3.00m window that is 0.635cm thick if the temperatures of the inner and outer surfaces are 5.00°C and - 10.0°C, respectively. An average thermal conductivity of glass is 0.84 J/s.m. C. Submit a scanned copy of YOUR detailed and handwritten working in the Drag & Drop box field. Unclear, non-readable files or files sent via email will receive zero. Maximum size for new files. 200, maximum attachments. 2Consider a low-speed flight of the space shuttle as it is nearing a landing. If the air pressure and temperature at the nose of the shuttle are 121,590 Pa and 400K, respectively, what is the density? detailed solution pls, Thank you
- edu/webapps/assessment/take/launch.jsp?course_assessment_id=_241982_1&course_id%3D_147951 1&content_id=_7969789_1&step=null v Question Completion Status: OC. 28.4 atm O d. 288 atm QUESTION 3 The partial vacuum that exists between the walls of a Dewar flask does not minimize heat transferred by... O a. Conduction O b.Convection O C. Radiation O d. Conduction and Convection QUESTION 4 How much heat is given off by 5.0 g of steam at 100°C as it changes phase to water at 100°C? (hint: watch units, answer in calories) O a. 2.70 kcal O b.2.80 kcal OC. 2,89 kcal Od.3.10 kcal QUESTION 5 Which of the following phenomena does not demonstrate the Bernoulli effect? O a. The curved path of a "curve" ball in baseball O b. A roof is lifted off a house in a storm O C. The lift of an airplane wing Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers. 54°F e here to search 直Viscosity of fluid plays a significant role in the analyses of many fluid dynamics problems. The viscosity of water can be determined from the following correlation: 410(72,) where e = viscosity (N/s•m²) T- temperature (K) a - 2.414 x 1 0- 2 - 247.8 (K) %3D s = 140 (K) What is the appropriate unit for c, if the above equa- tion is to be homnogeneous in units?Calculate the viscosity (micropoises) of molecular oxygen at 273.2 K and 1 bar. The molecular diameter is 0.360 nm.