Answer:
the estimated time of submersion is 17.7 years
Explanation:
Given the data in the question;
estimate the time of submersion in years.
we write down the relation between time of submersion and corrosion penetration as follows;
CPR(mpy) = K × W(mg) / [ A(in²) × p(g/cm³) × t(hr) ]
we solve for t
t = (K × W) / ( AP × CPR )
given that;
Area A = 5 in²
W = 2.3 kg = 2.3 × 10⁶ mg
density of steel p = 7.9 g/cm³
CPR = 200
we know that K is 534
so we substitute
t = (534 × 2.3 × 10⁶ mg) / ( 5 in² × 7.9 g/cm³ × 200 mpy )
t = 1,228,200,000 / 7900
t = 155468.3544 hr
t = 155468.3544 hr × ( 1 yrs / ( 365 × 24 hrs )
t = 17.7 years
Therefore, the estimated time of submersion is 17.7 years
Answer:
Tough question but here is my opinion (if you didn't know its talking about whether some food should be labeled or not)
I think they should include labels, because if they didn't there wouldn't be the items to make it included which some people may have severe allergy attacks.
Answer:
t=13.49 min
Explanation:
Given that
I=300 A
A= 0.21 cm²
L= 0.85 m
Number of charge carriers per unit volume = 8.49 x 10²⁸ m⁻³.
We know speed of the electron given as
V=J/ne
J= I/A
So
V=I/neA
V=0.00105 m/s
lets take t is the time when electron travels from car battery to the starting motor
t = L/V
t=809.52 s
t=13.49 min
Answer:
Explanation:
It is a circuit where there is only one path for the current, from the power supply source through all the elements of the circuit (Receiver, metallic material that allows the circulation of the electric current, Power source), so that no there is neither independence nor distinction in the different places of this.