The distance s(in m) above the ground for a projectile fired vertically upward with a velocity of 4(a) m/s as a function of time t(in s) is given by s=4(a)t-4.(b)t2
a= 6 b=9
Find the answers to these questions
1. find t for v=0
2. find v for t=4
3. find v for t=5
what conclusions can you draw?
In: Mechanical Engineering
Assignment 5 Directions: Read Chapter 8 of the text. This assignment will be divided in two parts (Part A and Part B), but will be submitted as one document - Make sure that you have also included the name of the assignment and your name on the assignment sheet. Text is FROM PRODUCTS TO SERVICES by Laurie Young.
· Part A. Differences in Product and Service Marketing Select 5 of the 10 subcategory descriptions of differentiating product and service marketing concepts found on pages 271-282 of the text, and compose a written report which highlights the difference between product and service marketing. Include either illustrations from the text or examples from your own experience that will provide support for your explanations. The assignment will be also assessed on proper spelling, grammar and paragraph organization. Part A should be a minimum of 3 pages in length (1.5 line spacing, 12 pt. type).
· Part B. Marketing Strategies There are 8 marketing strategies that are described on pages 289-301 of Chapter 8 of the text. Create a chart/table that summarizes the key points of this information that could be used as a quick reference for reviewing and selecting a marketing option. The chart/table should be organized to include the name of each strategy, a short description of each strategy, and one advantage and one disadvantage of each strategy. In addition to content, the assignment will be assessed on proper spelling and grammar, chart/table organization, labeling and identification. Write the answers on a word document and post it to the Dropbox Assignment 5 at D2L.
Discussion 3 Search the internet to find a marketing strategy that is NOT described on pages 289-301 of Chapter 8. Explain the strategy, advantages and disadvantages. Please include your source (e.g. the link of the website). Post your findings to the discussion board and Respond to your classmates
In: Mechanical Engineering
In: Mechanical Engineering
7.4 A complex Brayton-cycle power plant using intercooling, reheat, and regeneration is analyzed using the air standard method. Air is compressed from State 1 to State 2 using a compressor with a pressure ratio of RP1. An intercooler is used to cool the air to State 3 before entering a second compressor with a pressure ratio of RP2. The compressed air exits at State 4 and is preheated in a regenerator that uses the exhaust air from the low-pressure turbine. The preheated air enters the combustor at State 5 and is heated to State 6 where it enters the high-pressure turbine. The air exits the turbine at State 7 and is heated in a reheat combustor to State 8. The air expands in a low-pressure turbine to State 9 where it enters the counterflow regenerator with the effectiveness of RE. Given the specified operating conditions determine the efficiency and other values listed below.
--Given Values--
T1 &T3 (K) = 303
P1 (kPa) = 186
rp1 = 2.7
rp2 = 4.4
Eff (%) = 92
T6 & T8 (K) = 1300
P7 (kPa) = 906
a) Determine the specific enthalpy (kJ/kg) at state 1.
b) Determine the relative pressure at state 1.
c) Determine the relative pressure at state 2.
e) Determine the pressure (kPa) at state 2.
f) Determine the specific enthalpy (kJ/kg) at state 2.
g) Determine the pressure (kPa) at state 3.
h) Determine the specific enthalpy (kJ/kg) at state 3.
i) Determine the relative pressure at state 3.
j) Determine the relative pressure at state 4.
k) Determine the temperature (K) at state 4
l) Determine the pressure (kPa) at state 4.
m) Determine the specific enthalpy (kJ/kg) at state 4.
n) Determine the specific enthalpy (kJ/kg) at state 5.
o) Determine the specific enthalpy (kJ/kg) at state 6.
p) Determine the relative pressure at state 6.
q) Determine the relative pressure at state 7.
r) Determine the temperature (K) at state 7.
s) Determine the specific enthalpy (kJ/kg) at state 7.
t) Determine the specific enthalpy (kJ/kg) at state 8.
u) Determine the relative pressure at state 8.
v) Determine the relative pressure at state 9.
w) Determine the specific enthalpy (kJ/kg) at state 9.
x) Determine the net work per unit mass (kJ/kg) through the power plant.
y) Determine the heat addition per unit mass (kJ/kg) through the power plant.
z) Determine the efficiency () of the power plant.
In: Mechanical Engineering
Prove that the adiabatic process of an ideal gas in a simple compressible closed system is the polytropic process of n=k ( where k is the specific heat rate) by using the thermodynamic first law.
Please answer quickly will rate positive thank u
In: Mechanical Engineering
In: Mechanical Engineering
1040 steel
1.What is the composition of the material? (10P)
2.What is the typical applications of the material? (10P)
3.What is the most common hardness measurement method for the material? What is the hardness values for the material after different heat treatments. Put some microstructures and discuss the hardness values differences (at least 3 different heat treatment) (20P)
4.What is the typical UTS, yield strenght and strain values of the material for 3 different heat treatments (any). Put some microstructures and discuss the mechanical properties differences (at least 3 different heat treatment). (20P)
5.What is the typical impact energy value of the material for 3 different heat treatments (any). Put some microstructures and discuss the impact energy differences. (20P)
In: Mechanical Engineering
how I can select the type of lubricant and the lubrication method for bearing ?
answer it all or leave it for another expert , Use table or catalog not typing a google theory and post it here please need to select for design !
In: Mechanical Engineering
my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " structural Analysis " for mudguard fender of
motorbike
In: Mechanical Engineering
my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " Need Reognition " for mudguard fender of motorbike
In: Mechanical Engineering
my topic is "mudguard fender of motorbike"
this is the product i seleted.
so i want " Functional specifications/Requirements " for mudguard
fender of motorbike
In: Mechanical Engineering
Wind power generation system design; a-) Adopt Rayleigh wind regime. b-) Specify the power factor of the wind turbine. c-) Find the start, stop and nominal speed of the wind turbine d-) Calculate the annual energy production of the system
In: Mechanical Engineering
I need solving question 2 only?
Q1.
In an Otto cycle air is compressed from an initial pressure 120 kPa and temperature 350 (K). The cycle has compression ratio of 10. In the constant volume heat addition process 1000 kJ/kg heat is added into the air. Considering variation on the specific heat of air with temperature, determine,
(a) the pressure and temperature at the end of heat addition process (show the points on P-v diagram)
(b) the network output
(c) the thermal efficiency
(d) the mean effective pressure for the cycle
The gas constant of air is R = 0.287 kJ/kg.K
Q2.
Repeat Q1 using cold air standard assumption.
(Properties: The properties of air at room temperature are cp = 1.005 kJ/kg·K, cv = 0.718 kJ/kg·K, R = 0.287 kJ/kg·K, and k = 1.4)
In: Mechanical Engineering
A regenerative Rankine cycle operates with inlet conditions of 800°C and 5MPa and exhausts to a pressure of 10kPa. A single open-feedwater heater is used with an extraction pressure of 0.8 MPa. Assume the exit states of the condenser and the feedwater heater are both saturated liquids. The turbine and pump isentropic efficiencies are 100%.
In: Mechanical Engineering
Consider an ideal Rankine cycle modified with the addition of a single reheat stage. The working fluid is H20. The maximum pressure in the cycle is 10MPa, and the temperature of the steam exiting both the boiler and the reheater is 550°C. The pressure in the condenser is 10kPa.
1.Draw the T-s diagram for the following three cases.
a) 4.5MPa (= 0.25Pmax + 2MPA)
b) 2.5MPA (= 0.25Pmax)
c) 0.5MPa (= 0.25Pmax - 2MPA)
2.Calculate the thermal efficiency for the three reheat cycles in part 1
In: Mechanical Engineering