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In an effort to modernize the United States interstate system, the Department of Transportation proposes to change speed limits from miles per hour to "flashes." A flash is equal to 10 feet per second [ft/s]. On a car speedometer, what will the new range be in units of "flashes• if the old scale was set to a maximum of 120 miles per hour [mi/h or mph]?
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- Locate the center of gravity of the sheet-metal form shown. Given: r = 26.40 mm . 50 mm 40 mm X 150 mm The center of gravity (✗) of the sheet-metal form is The center of gravity (Y) of the sheet-metal form is The center of gravity ( Z ) of the sheet-metal form is mm. mm. (Round the final answer to three decimal places.) mm.arrow_forwardDetermine the reactions at the beam supports for the given loading if W = 300 lb/ft . W 6 ft A 9 ft. 6 ft- The reaction at Bis lb. The reaction at A is lb. Barrow_forwardIn the given figure, the bent rod ABEF is supported by bearings at C and D and by wire AH. The portion AB of the rod is 250 mm long, and the load W is 580 N. Assume that the bearing at D does not exert any axial thrust. 30° 250 mm 300 mm 50 mm H B C D 50 mm W 250 mm Determine the reactions at C and D. (Include a minus sign if necessary.) The reaction at Cis N) j + N)k The reaction at Dis N) j + ( N)karrow_forward
- Consider the angle bar shown in the given figure A B W 240 mm- 80 mm Determine the reactions at A and B when a = 150 mm and W = 320 N. The reaction at A is N ZI The reaction at Bis N.arrow_forwardIn the given figure, the bent rod ABEF is supported by bearings at C and D and by wire AH. The portion AB of the rod is 250 mm long, and the load W is 580 N. Assume that the bearing at D does not exert any axial thrust. H B A 30° 250 mm D 300 mm 50 mm 50 mm W Determine the tension in wire AH. The tension in wire AH is N. 250 mm xarrow_forwardExposure to high concentrations of gaseous ammonia can cause lung damage. The acceptable short term ammonia exposure level set by the occupational safety and health administration is 35 ppm for 15 min. consider a vessel filled with gaseous ammonia at 30 mol/L and 10 cm diameter circular plastic plug with thickeness of 2 mm is used to contain the ammonia inside the vessel. the ventilation system is capable of keeping the room safe with fresh air, provded that the rate of ammonia being release is below .2 mg/s. if the diffusion coefficient of ammonia through the plug is 1.3*10^-10 m^2/s, determine whether or not the plug can safelt contain the ammonia inside the vessel.arrow_forward
- The state of stress at a point is σ = -8.00 kpsi, σy = 12.00 kpsi, σ% = -18.00 kpsi, Try = 7.00 kpsi, Tyz = 4.000 kpsi, and Tzx = -18.00 kpsi. Determine the principal stresses. The principal normal stress σ1 is determined to be kpsi. The principal normal stress σ2 is determined to be The principal normal stress σ3 is determined to be kpsi. kpsi. The principal shear stress T₁ T1/2 is determined to be kpsi. The principal shear stress 72/ is determined to be [ kpsi. The principal shear stress T1/3 is determined to be kpsi.arrow_forwardThe constant 180 N-m counterclockwise couple acts on the L-shaped rod ABC, which rotates freely in the vertical plane about the pin at A. At this moment, the angular velocity of the rod is 2 rad/s counterclockwise. Determine the angular acceleration of the rod and the reactions at A in the position shown. Answer: a=1.7 rad/s², Ax = 25.3 N, Ay = 603 N 180 N-m 1.2 m 24 kg 20 kg B 1.0 marrow_forwardCircular fins of uniform cross section, with diameterof 10 mm and length of 50 mm, are attached to a wallwith surface temperature of 350°C. The fins are made ofmaterial with thermal conductivity of 240 W/m·K, and theyare exposed to an ambient air condition of 25°C and the convectionheat transfer coefficient is 250 W/m2·K. Determinethe heat transfer rate and plot the temperature variation of asingle fin for the following boundary conditions:(d) Convection from the fin tiparrow_forward
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