Energy of a Roller Coaster Car500450400350---3 300250E 200150100506810Time (s)Mechanical Energy....... Potential Energy-- Kinetic EnergyThis graph shows different types ofenergy for a roller coaster car that startsat the top of a large hill and goes down toits lowest point at 6 s.According to the graph, what is the mostlikely relationship between height andpotential energy?Your answer:They are directly related.They are inversely related.There is no relationship between thetwo.There is not enough information fora conclusion.

Option (a) is correct. They are directly related.

Answered: Energy of a Roller Coaster Car 500 450…

Engineering

Mechanical Engineering

Energy of a Roller Coaster Car 500 450 400 350 2 300 준 250 200 150 100 50 10 Time (s) 00 2.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

AE ll ll A:£0 docs.google.com/forms When a stationary mass of gas was compressed without friction at constant pressure its initial state of 0.8 m3 and 0.105 MPa was found to change to final state of 0.40 m3 and 0.105 MPa. There was a transfer of 85 kJ of heat from the gas during the process.How much did the internal energy of the gas change ? * 1 Add File Derive the law pv^y = constant * 1 Add File Вack Next Never submit passwords through Google Forms. This form was created inside L Iniversity of Al-
First law of Thermodynamics Conservation of Energy- Cycles Instruction: Completer the table and show solution step by step. Answer it in 1 hr.
you are with your father with his motorbike on the way to your school. In the middle of your travel, the gas was empty. Luckily there is a gas station nearby. Your father asked you to buy 2 liters of 100 worth of money per 2 liters "premium" gasoline advertised with r=13. But you choose to buy a 93 worth of money per 2 Liters ordinary fuel with r=8. (a) how much decrease in the ideal efficiency results from this decrease in the compression ratio? Use y=1.40. (b) Is it greater than the difference in price?
2. Use only the MD below to solve this Item; use it by plotting data and process to determine items being asked. Steam enters a turbine at 117.4308 atmgage and 932 deg. F, and expands isentropicaly to 177.17 inches of Hg. For 2 + (SN/X) kg/sec of steam, what is (a) the ideal work done (KJ) if AKE = 0 and actual exhaust enthalpy is 2700 KJ/kg. a)Ans: _(b)Ne =. _(c)Determine: ideal steam moisture at exhaust. Ans: (d) Actual steam quality at exhaust Ans: (e) Actual steam temp at the exhaust. Ans. f) Degree SH of the steam at turbine inlet. Ans g) change in entropy during the actual process. Ans
17.Give examples for kinetic energy, potential energy, electrical energy, chemical and energy mechanical energy exists during daily life. 050E106 250E106
2. Use only the MD below to solve this Item; use it by plotting data and process to determine items being asked. Steam enters a turbine at 117.4308 atmgage, and 932 deg. F, and expands isentropicaly to 177.17 inches of Hg. For 2 + (SN/X) kg/sec of steam, what is (a) the ideal work done (KJ) if AKE = 0 and actual exhaust enthalpy is 2700 KI/kg. a)Ans: (b)ne = (c)Determine: ideal steam moisture at exhaust. Ans: (d) Actual steam quality at exhaust Ans: (e) Actual steam temp at the exhaust. Ans. _f) Degree SH of the steam at turbine inlet. Ans g) change in entropy during the actual process. www Ans
A closed thermodynamic system consists of a fixed amount of substance (i.e. mass) in which no substance can flow across the boundary, but energy can. For a closed themodynamic system we cannot add energy to the system, via substance (E ) (1.e. matter which contains energy is not allowed across the boundary) Across the Boundaries E° = No Q = = Yes W mass NO CLOSED = Yes SY STEM m = constant | energy YES Figure 1.1. If the substance inside the thermodynamic system shown in figure 1.1. (i.e. piston cylinder device) is air, is the system a Fixed closed system Moveable closed system A. В.
within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of A gas three processes: Process 1-2: Constant volume, V = 0.06 m², U2 - U, = 40.4 kJ Process 2-3: Expansion with PV = constant, U3 - U2= 0 Process 3-1: Constant pressure, P =3 bar, W31 = (-20) kJ There are no significant changes in kinetic or potential energy. %3D Identify the process on a sketch of p-V diagram plotted for the cycle. Formulate the expression for heat transfer for process 2-3 and process 3-1. (Hint: Apply first law of thermodynamics for closed systems) (a) (b) (c) Solve to find the net-work for the cycle and heat transfer for the process 2-3 and Heat transfer for process 3-1, in kJ Identify if the above system executes a power cycle or a refrigeration cycle. Give (d) reason.
A track runner, with a mass of 69.0 kg, slides on the ground after tripping and falling. At the start of the slide, the runner moves at a speed of 3.90 m/s before coming to rest. The coefficient of friction between the runner and the ground is 0.700. (a) Find the change in mechanical energy of the runner (in 3) from the start of the slide to when she comes to rest. 524 75 (b) How far (in m) does the runner slide? Enter anumber
An engine rated at 20 kW uses 1.5 kg of fuel in 1000 s. If the enthalpy(energy content) of the fuel is 53,300 kJ/kg, determine the efficiency ofthe engine. answer = 25% please show all workings
Drag and Drop the correct answers in the blanks. A mass mis hanging from the end of a vertical spring that has a spring constant k. The equilibrium position of the mass, yo, is The total potential energy of the mass when it is displaced by s from the equilibrium position is given by Y. is zero + U(s) = ks + positive * negative 1 1 ks+ 21 + U(s) ks² + mgyo %3D U(s) mgyo
A system consisting of a power cycle and a heat pump cycle, each operating between hot and cold reservoirs whose temperature are 500 K and 300 K, respectively. All energy transfers are positive in the directions of the arrows. The accompanying table provides two sets of steady-state data, in kW. For each set of data, determine if the system is operating in accord with the first and second laws of thermodynamics. Power cycle QHQc W cycle (a) 60 40 20 (b) 120 80 40 Heat pump cycle QHQ'cW'cycle 60 20 80 20 80 100 Power cycle- Hot reservoir, TH= 500 K O'H J Qc o'c Cold reservoir, Te= 300 K W cycle Heat pump