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The riding power mower has a mass of 140 kg with center of mass at G1 The operator has a mass of 90 kg with center of mass at G2. Calculate the minimum effective coefficient of friction μ which will permit the front wheels of the mower to lift off the ground as the mower starts to move forward.
A sample with a measured background level (Bi) of 22 mg/l was spiked with the equivalent of 30 mg/l without appreciably changing the sample volume. The result for the spiked sample (Ai) was 49.2 mg/l. Calculate Pi and determine if it falls with th..
On average, is an electron farther away from the nucleus when it isoccupying a 2p orbital in hydrogen than when it is occupying a 2sorbital? Justify by calculating the average distances
each report may cover all items included in the description of the project below1. toxic and hazardous waste how are
The Fluoride feeder runs out of feed solution. The rapid mix tank is connected to a 5 km long distribution pipe. The flow rate into the tank mix tank is 0.44 m?/s and the volume of the tank is 2.50 m?.
Properties of frozen tissues have been measured as part of understanding the response of tissue to cryopreservation. In one set of experiments, frozen bovine carotid arteries were tested in uniaxial tension.
A train moving at 100 km/hr decreases its speed to 80 km/hr in 3.5 seconds. How far, in meters, did the train travel during this time
River A has a flow rate of 3.0 m^3/sec. Stream B discharges into the river at a flow rate of 0.05 m^3/sec. to study mixing of the stream and river, a conservative tracer is to be added to stream B
Stormwater controls are typically designed by civil engineers. Stormwater is collected in pipes below the ground and routed to nearby surface water.
A 10ft x 10 ft square footing is subjected to an eccentric compressive load Of PL = 50 kips and PD = 60 kips. The eccentricity of load is 18 inches. There is a 24 in x 24 in concrete pier concentrically located on the footing. The footing is 24 i..
The 90-lb force is required to drag the 200-lb crate 60 ft up the rough inclined plane at constant velocity. If the force is removed when the crate reaches point B, and the crate is then released from rest
The phone lines to an airline reservation system are occupied 40% of the time. assume that the events that the lines are occupied on successive calls are independent. assume that 20 calls are placed to the airline.
A cylindrical specimen of soil is compressed by an axial principal stress of 500 kPa and a radial principal stress of 200 kPa. Plot Mohr's circle of stress and determine (a) the maximum shear stress and
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