Answer:
14.36((14MPa) approximately
Explanation:
In this question, we are asked to calculate the stress tightened in a bolt to a stress of 69MPa.
Please check attachment for complete solution and step by step explanation
Answer:
X=0.194
T=-33.6C
Explanation:
Hello!
To solve this problem use the following steps!
1. We will call the expansion valve inlet 1 and exit 2
2.Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)
through prior knowledge of two other properties such as pressure and temperature.
3. Find the enthalpy of state 1 using pressure and temperature using thermodynamic tables
h1=Enthalpy(Ammonia;T=24C;P=1000kPa)=312.9KJ/kg
4. An expansion valve is a device which does not have heat or work exchange which means that the enthalpy of state one is equal to that of state 2, so using thermodynamic tables uses the pressure of state 2 and enthalpy of state 1 to find quality and temperature
x2=Quality(Ammonia;P=100kPa;h=h1=312.9KJ/kg)
=0.194
T2=Temperature(Ammonia;P=100kPa;h=h1=312.9KJ/kg)=-33.6C
Answer:
408 J/kg
662696.7 J/kg
Explanation:
Workdone by compression process in a pump can be isothermally expressed as :

For water at inlet pressure 1. 0 bar;
the specific values for :
saturated vapor 
saturated liquid 
∴ we have
= 1.0 bar = 1. 0 × 10⁵ N/m²
= 50 bar = 50 × 10⁵ N/m²
For saturated water output from condenser work; we have
W = 
W = 
W = 408 J/kg
For saturated vapor output from condenser
Work required :

W = 
W = 662696.7 J/kg
If you are being tailgated and need to make a stop, you should:
B. flash your brake lights ahead of time.
C. slow sooner to make a gradual stop.
<h3>What is tailgating?</h3>
Tailgating can be defined as an act which typically involves a tailgater driving dangerously close behind another vehicle that is in front.
This ultimately implies that, a tailgating vehicle is a hazard to any driver because when he or she brakes suddenly, it may result in the tailgater hitting him or her from the rear.
In this context, we can infer and logically deduce that if you are being tailgated and need to make a stop, you should flash your brake lights ahead of time and slow sooner to make a gradual stop.
Read more on tailgating vehicle here: brainly.com/question/14287208
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Answer:
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Explanation:
This is an over the top question