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Two blocks A and B have a weight of 10 and 5 , respectively. They are resting on the incline for which the coefficients of static friction are = 0.15 and = 0.40. The spring has a stiffness of = 7 an
A reservoir with a length of 20 km and width of 3 km has a flood inflow of 1000 m^3/s. (a) If exit flow is restricted to 500 m^3/s, how fast is the water level rising in the reservoir per day
(a) determine if the flow will choke and both the downstream and upstream water depths. (b) if there is also a 1 ft high step up in bottom elevation at the contraction, determine if the flow will ch
Seawater flows steadily into an open 100 liter tank initially filled completely with freshwater. The freshwater mixes thoroughly with the seawater and the mixture overflows out of the tank.
At point 1 and point 2, it is also measured that dv1/dt = 20 m/s^2 and dv2/dt = 50 m/s^2 respectively. Determine the local acceleration, the convective acceleration, and the total acceleration at po
An ideal Brayton refrigeration cycle has a compressor ratio of 3.75. The air enters the compressor at 1bar, 27°C. The temperature at the inlet of the turbine is 77°C. Using Air Standard Meth
An in-compressible fluid flows horizontally in the x-y plane with a velocity given by u = 33 (y/h)^1/2 , where y and h are in meters and h is a constant. Determine the average velocity for the porti
A 100ft tape is calibrated at 68 degrees F, fully supported with 15 Ibs of tension and found to be 99.987 ft long. Is this tape is used fully supported with 15 Ibs of tension at 86 degrees F to meas
If a certain EDM has a centering error of 3mm and a scalar error of 3ppm, what is the uncertainty in a observed distance of 1380.25 ft
The 90-lb boy and 75-lb girl wald towards eachother with constant speed on a 330-lb cart with frictionless wheels. assume that the cart was at rest befor the boy and girl start walking.
A 50-kg crate is pulled by the constant force P at an angle of 30 deg off the x axis- the crate starts from rest and achieves a speed of 10 m/s in 5 s. the coefficient of kinetic friction between th
The uniform 25 kg plate is welded to the vertical shaft, which is supported by bearings A and B. Calculate the magnitude of the force supported by bearing B during application of the (M =) 140 N&mid
You have been hired to do a survey to search for old tunnels that are rumored to be in the area, previously used to smuggle people across the US-Mexico border. The tunnels are not expected to be exc
According to the Owner's Manual for the Gateway Arch by William Thayer, the construction made use of the following mathematical equation. y(x) = a + b * cosh( c * x) a= 693.8597 b= -68.7672 c=.01003
a thermometer reading 10 degrees Celsius is brought into a room whose temperature is 23 degrees Celsius. two minutes later the thermometer reading is 18 degrees Celsius. how long will it take until
Consider a lake whose fish population is governed by the equation: dP/dt= 0.1P[(P/10)-1] if the initial fish population is 3,000 and assuming no fishing is allowed in the lake, what is the fish popu
Figure out the times he was at each of these companies, who else was there at the time and how they might have collaborated. Include the technologies that were in use or being developed.
The wedge is used to level the member. Determine thehorizontal force P that must be applied to move the wedge to theright. The coefficient of static friction between the wedgeand the two surfaces of
Water flows from a ground storage tank that is 450 feet above a town's water distribution system. The pressure at the entrance of the system must be at least 75 psi and the demand is 1350 GPM.
The discharge from the Renenutet sugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The Meskhenet Stream has a negligible BOD and the initial deficit after the river and waste
A pump delivers 60 degrees F water at 2000 gpm through a vertical pipeline 300 ft high. Find the minimum horsepower input to the pump. Assume that atmospheric pressure exists at both the pump inlet
Water pressurized to 3.5 x 105 Pa is flowing at 5.0 m/s in a pipe which contracts to 1/3 its former area. What is the pressure and velocity of the water after the contraction
A 3-in. Schedule 40 steel pipe is 5000 ft long and carries a lubricating oil between two points A and B such that the Reynolds number is 800. Point B is 20 ft higher that A.
Compute the energy loss in a 90 degree bend in a steel tube used for a fluid power system. The tube has a 0.5 inch outside diameter and a wall thickness of 0.065 inches. The mean bend radius is 2.00
find the volume of the given solid region bounded below by the cone z=sqrt(x^2+y^2) and bounded above by the sphere x^2+y^2+z^2=128. using triple intergrals.