Answer:
Now we can solve for the fracture level with this formula:
We can use the parameter of Y from the previous equation since this value not changes.
And replacing we have:
And for this case we see that this value not correspond to 260 Mpa the value reported, so then the correct answer for this case would be 244.96 Mpa for the new crack length of 6mm = 0.006 m
Explanation:
We need to solve for the parameter Y given by this expression:
Where:
represent the fracture toughness
represent the stress level
And if we replace we got:
Now we can solve for the fracture level with this formula:
We can use the parameter of Y from the previous equation since this value not changes.
And replacing we have:
And for this case we see that this value not correspond to 260 Mpa the value reported, so then the correct answer for this case would be 244.96 Mpa for the new crack length of 6mm = 0.006 m
Answer:
The Internet of things
Explanation:
When devices embedded with a network connectivity, software or sensors, are able to exchange data with the manufacturer through the network of physical things, then we say the Internet of things (IoT) has been defined.
Internet of things is when devices like smartphones, sensors and other smart devices are connected together which allows them to exchange data through the network of physical things. By exchanging data, these devices learn new patterns of adaptation.
In this case, the fly thermostat, learns the patterns for raising and lowering the temperature in a house through the Internet of things beacause the sensor has made it possible by automatically observing the temperature pattern of the house.
Work done = -19.7 KJ
Heat transferred = 17.4 KJ
Explanation:
Given-
Temperature, T = 27°C
Volume, V = 0.2 m³
Pressure, 
= 1 bar
= 4 bar
pV¹°¹ = constant
From superheated propane table, at = 1 bar and
= 27⁰C
= 0.557 m³/kg
= 473.73 KJ/kg
(a) Work = ?
We know,
V1¹°¹ = p2V2¹°¹
At = 4 bar and v = 0.158 m³/kg
u2 = 548.45K J/kg
To find work done in the process:
(b) Heat transfer = ?
Answer:
Removal of the safety ground connection on equipment can expose users to an increased danger of electric shock and may contradict wiring regulations. ... If a fault develops in any line-operated equipment, cable shields and equipment enclosures may become energized, creating an electric shock hazard.
Answer:
He wore his black suit, another color of shirt (not purple) and shoes
Explanation:
Holmes owns two suits: one black and one tweed.
Whenever he wears his tweed suit and a purple shirt, he chooses not to wear a tie and whenever he wears sandals, he always wears a purple shirt.
So, if he wore a bow tie yesterday, it means he wore his black suit, another color of shirt (not purple) and shoes because the shirt color is not purple
