The two 0.2kg sliders A and B move without friction around the horizontal circular slot. The sliders are connected by an inextensible cable AB. The system starts from rest in the position shown in the figure. Determine the normal acceleration of slider A at this instant. B 0.8 m 45⁰ O P=4N A

Problem 5: Energy Equation This question tests your ability to recognize the components of the energy equation: Ply+z+V²/(2g) = constant. On your submission, write each of the following six concepts, then write the relevant component (or "none"): elevation head P/Y pressure head P/Y dynamic head P/y P/Y neglect for steady flow neglect for horizontal flow neglect for open channel flow Ply P/Y Z V²/(2g) V²/(2g) v²/(2g) Z V²/(2g) V²/(2g) V²/(2g) Z Z N N none none none none none none

1. A new town is being developed in a rural area of Costa Rica. Planners are projecting a population of about 2,000 people and a baseload electric energy demand for the town of 10MWe over the first 20 years. A nearby river flows from the rainforest region with a mean annual flow of 100m³/s. Over a 20 km distance upstream of the town site, the river has a change in elevation of 1,000 m. Seasonal variations in the river flow could be as large as a factor of ten above or below the mean flow. Is a hydro project using turbines with 80% efficiency feasible to meet the town's future energy needs? Discuss (2-3 sentences each) at least two associated impacts that planners also need to consider in the hydro project design.

5)How much power a Wind Turbine with 32 meter Diameter blades can generate with a wind speed of 15 m/s. Assume kg Air density is 1.42 m3 b)What is the efficiency(in %) of the above Wind Turbine system if the max power generated was measured to be 0.35*106 Watts