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Imagine two small towns of 1,000 people: Blacktop and Parktown. In the urban sprawl that is Blacktop, all the residents own fuel-efficient cars (15 km/liter) and travel an average of 20,000 km per year. Over in Parktown, the situation is somewhat different. Good public transport and well-planned amenities mean that only half the inhabitants need a car. Those that do own a car tend not to need it so often and therefore replace it less frequently. Each car-owner drives an average of 10,000 km per year. However, their older-model vehicles are less fuel efficient (10 km/liter) than those in Blacktop. Which community is transportation is more environmentally sustainable?
Knowing that the magnitude of P is 35 N, determine by trigonometry (a) the required angle a if the resultant R of the two forces applied to the support is to be horizontal, (b) the corresponding magnitude of R.
Double the width of the window, using widen, set the height of the window so that it is the same as the width, and set the title to the new value "Square Window".
Suppose the gas above the soda in a bottle of a soft drink is pure CO2 at a pressure of 2 atm. a. Estimate the pH of the soda. b. Calculate CT, the total dissolved inorganic carbon.
The width of a lake is 16 km (it is a flat plane tangent to the radius of the sphere). How far does a horizontal plane depart from a level surface if the earth is a sphere with r=6371km
Determine the design compressive strength for a pinned ended HSS 8x8x3/8 column of ASTM A500, grade B steel with an unbraced length of 35ft?
Consider two alternative water resource projects, A and B. Project A will cost $2,533,000 and will return $1,000,000 at the end of 5 years and $4,000,000 at the end of 10 years.
Estimate the stopping distance required traveling northbound along University Drive towards campus assuming you are traveling at 40 mph under normal conditions.
After drying in the oven, it weighs 4.44 kg. The relative density of the grains is 2.70. Determine the degree of saturation, void ratio, porosity and moisture content of the soil in its natural state.
If the force is removed when the crate reaches point B, and the crate is then released from rest, determine the crates's velocity when it slides back down the plane and reaches point A.
The shovel's production at a 100% efficiency is estimated to be 300 BCY/h. and efficiency is 0.80. Truck travel time is estimated to be 8.0 minutes, and truck fixed cycle time (excluding loading ) is estimated to be 2 minutes.
The flowrate Q over a rectangular sharp crested weir depends on the width of the notch b, the head on the weir H, and the acceleration due to gravity g. Find how many dimensionless parameters govern this problem.
The cable stays AB and AD help support pole AC. Knowing that the tension is 120 lb in AB and 40 lb in AD, determine graphically the magnitude and direction of the resultant of the forces exerted by the stays at A using (a) the parallelogram law, (b) ..
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