Estimate the power needed to overcome the aerodynamic drag of a person who runs at a rate of 100 yds (300 ft) in 10 seconds into a 29.3 ft/s head-wind. Express your answer in terms of horsepower. Assume CDA = 9 ft2 for the runner. NOTE: ρAIR = 2.38x10-3 slugs/ft3, 1 horse power = 550 lb∙ft/sec.

Q: Figure shows a lawn sprinkler with unequal arms. The jets issuing out of Example 7.12 40 cm 60 the…

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Q: Air is flowing through a square conduit whose section changes from 100 mm (section 1) to 200…

A: A1=100mm2 A2=200mm2 V1=6m/s V2=1.8m/s ρ1=1kg/m3 ρ2=?

Q: Find the amount of load to be lifted for the lifting speed of 0.2m / s, given that a 10kW motor is…

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Q: Example 7.12 Figure shows a lawn 40 cm sprinkler with unequal arms. The jets issuing out of the…

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Q: The 70-kg boy slides down the smooth water slide. If he starts from rest at A, determine his speed…

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Q: Figure Determine the magnitude of the moment produced by the force of F-160 N about the hinged axis…

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Q: Calculate the allowable axial capacity in kN if Fy = 345 MPa. Write your answer rounded to the…

A: Given, W14 x 53 L = 8.2 m or 8200 mm Fy = 345 MPa

Q: The center of a spherical water storage tank sits 31 m above ground level. The radius of the tank is…

A: Step 1: Determine the Volume of the Water to be Pumped into the TankThe tank is spherical with a…

Q: For a short period of time, the frictional driving forceacting on the wheels of the 2.4-Mg van is…

A: Given DataV=20 kph=20×518=5.555 m/sapplying principle of impulse and momuntum in x directionmvx +∑…

Q: A certain centrifugal pump was tested and its performance curves can be approximated as follows: H…

A: Given, γ = 62.4 pcf  Q = 8 cfs

Q: AME: You must show all work to receive full credit. This means: all calculations, FBDS, units and…

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Q: A 1,000-ton train is accelerated at a constant rate up a 2% grade. The train resistance is constant…

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Q: .A venturimeter, having a diameter of 7.5 cm at the throat and 15 cm at the enlarged end, is…

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Q: A circular pipe of diameter 0.5 m carries the discharge of 50 litres/s. The head loss due to…

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Q: E Figure shown below illustrates a machine weighing 90 kg mounted on a spring of stiffness k = 18 x…

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Q: A motorist driving a 1000-kg car wishes to increase her speed from 20 m/s to 30 m/s in 5 s.…

A: The given data is as follows: Mass of car=1000 kgInitial velocity=20 m/secFinal velocity=30…

Q: 4. A 60-cm-wide belt moves as shown in the figure. Calculate the horsepower requirement assuming a…

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Q: 2000N A looo N 1o00 3000N C.

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Q: A 3200-lb forklift truck is used to lift a 1700-lb crate in Figure 1. Determine the reaction at one…

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Q: 8. Shown in Figure 4.8 is a small decorative wheel fitted with flat paddles so the wheel turns about…

A: GIVEN : TO CALCULATE : Force exerted on the wheel when it is stationary. CONCEPT :  F = Rate of…

Q: 2. The boom on 5000 kg truck is used to unload a pallet of shipping of mass of A..... kg. Determine…

A: Given A=87 Kg wt=5000kg Determine reaction on each two wheel?

Q: For a short period of time, the motor turns gear A with a constant angular acceleration of a…

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Q: The jet of water from a nozzle discharging into air has a diameter of 6 in. and a mean velocity of…

A: To find the velocity head and the horsepower in the jet

Q: The car having a weight of 3200 lb travels up the incline at a constant speed of 60 mph. Determine…

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Q: Fluid Properties A hydraulic lift consists of a 40 cm diameter ram and slides in a cylinder of…

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Q: Kindly discuss step by step on how you get your answer

A: The diagram is given below

Q: . How far will the 100-kg block move 2 seconds after it is released from the position shown. The…

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.