Answer:
False.
Explanation:
Welding due to the thermal stress caused by the piece and large temperature changes can cause residual stresses in the material due to the efforts that are manifested in it. These efforts can cause microfractures, weakened areas and also a stress and changes in the crystalline structure that does not allow it to maintain the initial properties of the material and be prone to subsequent failures and corrosion.
Answer: What laws can Congress pass?
What Congress Does
Make laws.
Declare war.
Raise and provide public money and oversee its proper expenditure.
Impeach and try federal officers.
Approve presidential appointments.
Approve treaties negotiated by the executive branch.
Oversight and investigations.
Explanation:
Answer:
The temperature at which observed heat is 400 K
Explanation:
Given data:
rejection reservoir temperature at exit
is 300 k
the efficiency of a engine is η = 25%
we know that efficiency of Carnot is given as

Putting all value to obtained temperature at which observed heat

= 400 K
Answer:
prove that | S | = | E | ; every element of S there is an Image on E , while not every element on E has an image on S
Explanation:
Given that S = { p q |p, q are prime numbers greater than 0}
E = {0, −2, 2, −4, 4, −6, 6, · · · }
To prove by constructing a bijection from S to E
detailed solution attached below
After the bijection :
<em>prove that | S | = | E |</em> : every element of S there is an Image on E , while not every element on E has an image on S
∴ we can say sets E and S are infinite sets