All categories

4 years ago

Work done by a system during a process can be considered as a property of the system. a)True b) False

Engineering

1 answer:

SVEN [57.7K]4 years ago

6 0

Answer:

b) False

Explanation:

Work done by a system is not a property because it doesn't define the system's state. Work is mechanical energy exchanged across the system's boundaries.

You might be interested in

15. A cold-chamber die-casting machine operates automatically, supported by two industrial robots.The machine produces two zinc

Softa [21]

Answer:

a. 121 Btu/lb

b. 211.8lb

c. 2.69/pc

Explanation:

See the attachments please

4 0

3 years ago

Read 2 more answers

1) Which step in the Design Process utilizes technical drawings to provide information necessary to

Natalija [7]

Answer: produce a product

Explanation:

7 0

2 years ago

An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 40 . For an applied str

erma4kov [3.2K]

Answer:

B. 2.3mm

Explanation:

The correct answer for the given question is B. 2.3mm. Some aircraft are made are fabricated from aluminium which has plane stain fracture toughness. In the given scenario the plane stain toughness is

Ktc = 40 [ MPa $\sqrt{(m)}$ ]

When the Ktc increases the fracture will appear on the aircraft. In this case the maximum crack until the fracture failure is 2.5mm.

8 0

3 years ago

piston-cylinder assembly contains water vapor, initially at 10 bar and 360 degC. The water undergoes a process where pv=constant

DIA [1.3K]

Answer:

Check the explanation

Explanation:

A diagrams showing the process in p-v and T-s and the Model engineering (which is the quest in constructing miniature working representations of proportionally-scaled in full-sized machines. It is a subdivision of metalworking with a sharp importance on artisanry, in contrast to mass production.) can be seen in the attached images below.

3 0

3 years ago

Rewrite the following nested if-else statement as a switch statement that accomplishes exactly the same thing. Assume that num i

seropon [69]

Answer:

Answer explained below

Explanation:

The following is the nested if-else statement:

% if-based statement

if num < -2 || num > 4

f1(num)

else

if num <=2

if num >= 0

f2(num)

else

f3(num)

end

else

f4(num)

end

NOTE: the num is an integer variable that has been initialized and that there are functions f1, f2, f3 and f4.

The nested if-else statement can be replaced by switch statement as shown below:

switch num

case(0, 1, 2)

f2(num)

case(-2, -1)

f3(num)

case(3, 4)

f4(num)

otherwise

f1(num)

In this case, the switch based code is easier to write and understand because the cases are single valued or a few discrete values (not ranges of values)

8 0

3 years ago