Answer:
www stands for world wide web
Explanation:
It will really help you thank you.
Answer:
Either D or C
Both of these masks are used for dust, but since half masks are generally cheaper and easier to use, I'd go with C.
If this is correct, I'd appreciate a brainliest.
Answer:
B) Process
Explanation:
In thermodynamics a process is a passage of a thermodynamic system from an initial to a final state of thermodynamic equilibrium.
A thermodynamic process path is the series of states through which a system passes from an initial to a final state.
Cycle is a process in which initial and final state are identical.
Answer:
7.7 kN
Explanation:
The capacity of a material having a crack to withstand fracture is referred to as fracture toughness.
It can be expressed by using the formula:
where;
fracture toughness K = 137 MPa
geometry factor Y = 1
applied stress 
= ???
crack length a = 2mm = 0.002
∴
Now, the tensile impact obtained is:
P = A × σ
P = 1728.289 × 4.5
P = 7777.30 N
P = 7.7 kN
