Answer:
they become oils with heat and pressure
they are non-renewable because they take millions of years to form
Answer: True.
Explanation: Damage can be inflicted upon power boosters, which would most likely lead to the leak (internally, externally).
Answer:
OSHA states the pedestrian has the right of way; therefore, operators must be on constant alert. The forklift operator is required to slow down and sound their horn at doorways, intersections, blind spots and when entering or exiting a building.
Explanation:
Answer:
critical stress = 595 MPa
Explanation:
given data
fracture toughness = 74.6 MPa-
crack length = 10 mm
f = 1
solution
we know crack length = 10 mm
and crack length = 2a as given in figure attach
so 2a = 10
a = 5 mm
and now we get here with the help of plane strain condition , critical stress is express as
critical stress = ......................1
put here value and we get
critical stress =
critical stress = 595 MPa
so here stress is change by plane strain condition because when plate become thinner than condition change by plane strain to plain stress.
plain stress condition occur in thin body where stress through thickness not vary by the thinner section.