Calculate the ankle torque during running pushoff from the following data set to 1 decimal place. NOTE if your answer is negative put the negative sign in the answer! FZ 1720 N Fx 551 N COP z 0 m Cop x 0.452 m Ankle z 0.143 m Ankle x 0.373 m
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- Determine the blade length for a wind turbine that supplies an electrical power output of 1.95 MW and given the following parameters: Wind speed = 51 km/hr The gear, generator and electric efficiencies are 93%, 95% and 91% respectively. The power coefficient of the wind turbine is the maximum possible as given by the Lanchester-Betz limit. Assume the atmospheric air conditions are 1.01325 bar and 27 °CShow from the following data taken for the automobile test performed on a 4 cylinder gasolineengine calculate the Brake Thermal Efficiency:Fuel intake = 9.78 lb/hourBrake output = 36.5 HPSpecific gravity of gasoline at 60°F = 0.738Room temperature = 78.5° FThrottle Setting = 9/16 full throttleHigh heating value (HHV) = 25,960 BTU/lbConversion factor 1HP = 2,545 BTU/hourMUST show all steps. MUST show units in each step.1 horsepower [international] = 0.746 kilowatt1 kilogram = 2.204 lbs1 BTU = 1.055 kilo joulesRound off ALL answers to three decimals. MUST show the units in every step.A flywheel absorbs 2500 ft-lb of energy at a coefficient of fluctuation of 0.10. The mean diameter of the flywheel is 72 inches. The weight of the arms and hub is 12 % of the rim weight. The mean rim speed is 80 fps. Consider the specific weight of the flywheel as γ = 0.26 lb/in3. A. Find the mean rpm of the rim. B. Determine the weight of the rim. C. What is the cross sectional area of the rim?
- A 45 grams (0.045 kg) golf ball of diameter equal to 43 mm fell into a 2m deep lake. Neglect inertia at the moment of impact. Assume viscosity of 1.12x10-3 Ns/m2 , water density of 1,000 kg/m3 and Cd=0.5. Sphere volume equals 4π r³ /3. 1. How long will it take from the moment it hits the surface until it gets to the bottom? 2. If one estimates the Cd with Cd=24/Re formula, the settling velocity would be unrealistically large. Why?A vertical jet thru a nozzle supports a 150.90N weight. The velocity and diameter of the jet are 17.90m/s and 3.90 cm respectively. Find the distance of load from the nozzle in meters. Group of answer choices 13.79 31.79 17.93 71.39I need an answer for this asap :(....A steam engine develops power at mean torque of 19,000 N-m and velocity of 10 m/s. The mean diameter of the flywheel rim is 1.2 meters. The coefficient of fluctuation of speed is 0.03 and the coefficient of fluctuation of energy is 0.21. Determine the thickness of the rim in mm if the width of the rim is twice of its thickness. Assume density of rim material as 7250 kg/m3.
- 1) An electric motor’s torque is a function of the speed at which it rotates. Many brushed AC motors have a linear toque curve as shown below. If the power output of the motor is equal to the torque (T) multiplied by the rotational speed in rad/s (w), what is the maximum power you can get out of the motor if the stall torque (Tstall) is 0.001 Nm and the no load speed (wno load) of 10,500 RPM? Give answer in Watts.Q.2 stroke engine develops 60 kw.If the brake thermal efficiency 80%, fuel is 42 MJ/kg and mechanical efficiency is 80%, determine, a) Fuel consumption b)lndicated power c)lndicated thermal efficiencyA long steel rod is placed horizontally between two supports, one at each end. The rod bends a little in the center. Which property of this rod can be used to estimate how much the rod should bend at the center? 1. Its Shear Modulus 2. Its Young's Modulus 3. All of these Moduli can be used to compute how much it bends. 4. Its Bulk Modulus.
- Prob # 9. Find the horsepower transmitted by a pair of friction wheels, the diameter of driving wheel is 10 inches, and it revolves at 200 rpm. The width of the wheel is 2 inches. The force per inch width of face is 150 pound and the coefficient of friction is 0.20. a. 96 hp b. 23 hp c. 1.2 hp d. 1.6 hpA single cylinder four stroke diesel engine works on the following data: Cylinder bore = 15 cm, stroke = 25 cm, speed= 250 rpm; area of indicator diagram = 6 cm2; length of indicator diagram = 9 cm; spring constant = 7.5 bar/cm; BSFC= 0.24 kg/kWh; CV of fuel = 42000kj/kg; diameter of brake wheel = 70 cm; rope diameter = 3.5 cm ; brake load= 40kg (392.4 N), Calculate the following performance parameter (a) Mechanical efficiency (b) Indicated thermal efficiency( STATIC OF RIGID BODIES) Show complete and step by step solution. Limit the answer into 3 decimal points.