To determine The velocity of the object at the bottom of the ramp: Explanation Show the schematic diagram of the ramp inclined at an angle of 40 ° from the horizontal as in Figure (1). Assume that there is no friction between the mass and the ramp, and air resistance is negligible. Express the velocity of the object at the bottom of the ramp. ΔKE + ΔPE = 0 1 2 m ( V 2 2 − V 1 2 ) + m g ( z 2 − z 1 ) = 0 1 2 ( V 2 2 − V 1 2 ) + g ( z 2 − z 1 ) = 0 (I) Here, change in gravitational kinetic energy is ΔKE , change in gravitational potential energy is ΔPE , mass of object is m , acceleration due to gravity is g , initial height is z 1 , final height is z 2 , velocity at the top is V 1 and velocity at the bottom is V 2 . As the initial or velocity at the top is negligible, take it as 0 . Substitute 0 for V 1 in Equation (I)

Fundamentals of Engineering Thermodynamics

8th Edition

ISBN: 9781118832301

Author: SHAPIRO

Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT

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Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

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Chapter 2.7, Problem 16P

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The velocity of the object at the bottom of the ramp:

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Chapter 2.7, Problem 15P

Chapter 2.7, Problem 17P

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Fundamentals of Engineering Thermodynamics

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The total energy of a closed system can change...Ch. 2.7 - 34. The energy of an isolated system can only...Ch. 2.7 - 35. If a closed system undergoes a thermodynamic...Ch. 2.7 - Prob. 36CU Ch. 2.7 - Prob. 37CU Ch. 2.7 - Prob. 38CU Ch. 2.7 - Prob. 39CU Ch. 2.7 - Prob. 40CU Ch. 2.7 - Prob. 41CU Ch. 2.7 - 42. A process that is adiabatic cannot involve...Ch. 2.7 - Prob. 43CU Ch. 2.7 - Prob. 44CU Ch. 2.7 - Prob. 45CU Ch. 2.7 - Prob. 46CU Ch. 2.7 - 47. A rotating flywheel stores energy in the form...Ch. 2.7 - Prob. 48CU Ch. 2.7 - Prob. 49CU Ch. 2.7 - 50. If a closed system undergoes a process for...Ch. 2.7 - Prob. 51CU Ch. 2.7 - Prob. 52CU Ch. 2.7 - Prob. 53CU Ch. 2.7 - Prob. 54CU Ch. 2.7 - 2.1 A baseball has a mass of 0.3 lb. What is the...Ch. 2.7 - 2.2 Determine the gravitational potential energy,...Ch. 2.7 - 2.3 An object whose weight is 100 lbf experiences...Ch. 2.7 - 2.4 A construction crane weighing 12.000 lbf fell...Ch. 2.7 - 2.5 An automobile weighing 2500 lbf increases its...Ch. 2.7 - 2.6 An object of mass 1000 kg, initially having a...Ch. 2.7 - 2.7 A 30-seat turboprop airliner whose mass is...Ch. 2.7 - 2.8 An automobile having a mass of 900 kg...Ch. 2.7 - 2.9 Vehicle crumple zones are designed to absorb...Ch. 2.7 - 2.10 An object whose mass is 300 lb experiences...Ch. 2.7 - Prob. 11P Ch. 2.7 - 2.12 Using KE = Iω2/2 from Problem 2.11a, how fast...Ch. 2.7 - 2.13 Two objects having different masses are...Ch. 2.7 - 2.14 An object whose mass is 100 lb falls freely...Ch. 2.7 - 2.15 During the packaging process, a can of soda...Ch. 2.7 - 2.16 Beginning from rest, an object of mass 200 kg...Ch. 2.7 - 2.17 Jack, who weighs 150 lbf, runs 5 miles in 43...Ch. 2.7 - 2.18 An object initially at an elevation of 5 m...Ch. 2.7 - 2.19 An object of mass 10 kg, initially at rest,...Ch. 2.7 - 2.20 An object initially at rest experiences a...Ch. 2.7 - 2.21 The drag force, Fd, imposed by the...Ch. 2.7 - 2.22 A major force opposing the motion of a...Ch. 2.7 - 2.23 The two major forces opposing the motion of a...Ch. 2.7 - 2.24 Measured data for pressure versus volume...Ch. 2.7 - 2.25 Measured data for pressure versus volume...Ch. 2.7 - 2.26 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.27 Carbon dioxide (CO2) gas within a...Ch. 2.7 - 2.28 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.29 Nitrogen (N2) gas within a piston-cylinder...Ch. 2.7 - 2.30 Oxygen (O2) gas within a piston-cylinder...Ch. 2.7 - 2.31 A closed system consisting of 14.5 lb of air...Ch. 2.7 - 2.32 Air contained within a piston-cylinder...Ch. 2.7 - 2.33 A gas contained within a piston-cylinder...Ch. 2.7 - 2.34 Carbon monoxide gas (CO) contained within a...Ch. 2.7 - 2.35 Air contained within a piston-cylinder...Ch. 2.7 - 2.36 The belt sander shown in Fig. P2.36 has a...Ch. 2.7 - 2.37 A 0.15-m-diameter pulley turns a belt...Ch. 2.7 - 2.38 A 10-V battery supplies a constant current of...Ch. 2.7 - 2.39 An electric heater draws a constant current...Ch. 2.7 - 2.40 A car magazine article states that the power...Ch. 2.7 - 2.41 The pistons of a V-6 automobile engine...Ch. 2.7 - 2.42 Figure P2.42 shows an object whose mass is 5...Ch. 2.7 - Prob. 43P Ch. 2.7 - 2.44 A soap film is suspended on a wire frame, as...Ch. 2.7 - 2.45 As shown in Fig. P2.45, a spring having an...Ch. 2.7 - 2.46 A fan forces air over a computer circuit...Ch. 2.7 - 2.47 As shown in Fig. P2.47, the 6-in.-thick...Ch. 2.7 - 2.48 As shown in Fig. P2.48, an oven wall consists...Ch. 2.7 - 2.49 A composite plane wall consists of a...Ch. 2.7 - 2.50 A composite plane wall consists of a...Ch. 2.7 - 2.51 An insulated frame wall of a house has an...Ch. 2.7 - 2.52 Complete the following exercise using heat...Ch. 2.7 - Prob. 53P Ch. 2.7 - Prob. 54P Ch. 2.7 - 2.55 The outer surface of the grill hood shown in...Ch. 2.7 - 2.56 Each line of the following table gives data...Ch. 2.7 - 2.57 Each line of the following table gives data,...Ch. 2.7 - 2.58 A closed system of mass 10 kg undergoes a...Ch. 2.7 - Prob. 59P Ch. 2.7 - 2.60 A gas contained in a piston−cylinder assembly...Ch. 2.7 - 2.61 A gas contained within a piston−cylinder...Ch. 2.7 - 2.62 An electric motor draws a current of 10 amp...Ch. 2.7 - 2.63 As shown in Fig. P2.63, the outer surface of...Ch. 2.7 - 2.64 One kg of Refrigerant 22, initially at p1 =...Ch. 2.7 - 2.65 A gas is contained in a vertical...Ch. 2.7 - 2.66 A gas undergoes a process in a...Ch. 2.7 - 2.67 Four kilograms of carbon monoxide (CO) is...Ch. 2.7 - 2.68 Helium gas is contained in a closed rigid...Ch. 2.7 - 2.69 Steam in a piston−cylinder assembly undergoes...Ch. 2.7 - 2.70 Air expands adiabatically in a...Ch. 2.7 - 2.71 A vertical piston−cylinder assembly with a...Ch. 2.7 - 2.72 Gaseous CO2 is contained in a vertical...Ch. 2.7 - 2.73 Figure P2.73 shows a gas contained in a...Ch. 2.7 - 2.74 The following table gives data, in kJ, for a...Ch. 2.7 - 2.75 The following table gives data, in Btu, for a...Ch. 2.7 - 2.76 Figure P2.76 shows a power cycle executed by...Ch. 2.7 - 2.77 A gas within a piston−cylinder assembly...Ch. 2.7 - 2.78 A gas within a piston-cylinder assembly...Ch. 2.7 - 2.79 A gas undergoes a cycle in a piston-cylinder...Ch. 2.7 - 2.80 As shown in Fig. P2.80, a gas within a...Ch. 2.7 - Prob. 81P Ch. 2.7 - Prob. 82P Ch. 2.7 - Prob. 83P Ch. 2.7 - Prob. 84P Ch. 2.7 - 2.85 A concentrating solar collector system, as...Ch. 2.7 - Prob. 86P Ch. 2.7 - Prob. 87P Ch. 2.7 - Prob. 88P Ch. 2.7 - 2.89 A refrigeration cycle operating as shown in...Ch. 2.7 - Prob. 90P Ch. 2.7 - Prob. 91P Ch. 2.7 - Prob. 92P Ch. 2.7 - Prob. 93P Ch. 2.7 - Prob. 94P Ch. 2.7 - 2.95 A heat pump maintains a dwelling at 688F....Ch. 2.7 - 2.96 A heat pump cycle delivers energy by heat...

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