Answer:
See attached pictures.
Explanation:
See attached pictures for detailed explanation.
Answer:
Explanation:
Given data in question
mean stress = 50 MPa
amplitude stress = 225 MPa
to find out
maximum stress, stress ratio, magnitude of the stress range.
solution
we will find first maximum stress and minimum stress
and stress will be sum of (maximum +minimum stress) / 2
so for stress 50 MPa and 225 MPa
=
+
/ 2
50 =
+
/ 2 ...........1
and
225 =
+
/ 2 ...........2
from eqution 1 and 2 we get maximum and minimum stress
= 275 MPa ............3
and
= -175 MPa ............4
In 2nd part we stress ratio is will compute by ratio of equation 3 and 4
we get ratio =
/
ratio = -175 / 227
ratio = -0.64
now in 3rd part magnitude will calculate by subtracting maximum stress - minimum stress i.e.
magnitude =
-
magnitude = 275 - (-175) = 450 MPa
Answer:
Since the farmer wants to buy a 10 kg bag of fertilizer, he should buy it from merchant A. However, Merchant A and B are selling at the same price for a unit value. In other words, Both Merchant A and B are selling 1kg of dry fertilizer for $1.
Explanation:
Which merchant has the better deal means which merchant offers the farmer a better deal.
For Merchant A, 10 kg bag = $10
meaning it contains a real 10 kg bag of dry fertilizer which the farmer can use without losing any Kg to drying.
While for Merchant B, 10 kg bag = $8
where the 10kg = 80% dry fertilizer + 20% water content
But the farmer can only use the solid constituents of the bag which means,
Merchant B is giving 80/100 x 10Kg of dry fertilizer for $8
That is, 8kg for $8
Since the farmer wants to buy a 10 kg bag of fertilizer, he should buy it from merchant A. However, Merchant A and B are selling at the same price for a unit value. In other words, Both Merchant A and B are selling 1kg of dry fertilizer for $1.
Answer:
Yes it is possible.
Explanation:
This problem is about to possibility to have alloy of iron-carbon for which mass fraction of ferrite,
and proeutectoid cementite, 
An alloy formation is possible when the composition values of the two alloy are equal.
Now writing the expression for the mass fraction of total ferrite, we have



wt. % of C
Now write the expression for the mass fraction of the proeutectoid cementite :


% wt. C
Since,
, it is possible to have an alloy of iron - carbon.
Answer:
49.5 kN
Explanation:
From the information given:


Thus ; 
From the given inequality; maximum live load (in addition to RD) that can be supported in shear by this beam is calculated by using the relation;
![\phi P_n \geq \sum \delta_i R_i \\ \\ \geq \delta_DR_D + \delta_L R_L \\ \\ 0.9*131.58 \geqq [1.4*28+1.6*R_L ] \\ \\ 118.4 \geq 39.2+ 16 R_L \\ \\ 118.4 - 39.2 \geq 16R_L \\ \\ 79.2 \geq 16R_L\\ \\ R_L \leq 49.5 \ kN](https://tex.z-dn.net/?f=%5Cphi%20P_n%20%5Cgeq%20%5Csum%20%5Cdelta_i%20R_i%20%5C%5C%20%5C%5C%20%5Cgeq%20%5Cdelta_DR_D%20%2B%20%5Cdelta_L%20R_L%20%5C%5C%20%5C%5C%200.9%2A131.58%20%5Cgeqq%20%5B1.4%2A28%2B1.6%2AR_L%20%5D%20%5C%5C%20%5C%5C%20118.4%20%5Cgeq%2039.2%2B%2016%20R_L%20%5C%5C%20%5C%5C%20118.4%20-%2039.2%20%5Cgeq%2016R_L%20%20%5C%5C%20%20%5C%5C%2079.2%20%20%5Cgeq%2016R_L%5C%5C%20%20%5C%5C%20R_L%20%5Cleq%2049.5%20%5C%20%20kN)