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2 years ago

Limited time only for christmas give yourself free 100 points YES YES muhahahahhaha

Engineering

2 answers:

Paraphin [41]2 years ago

8 0

Answer:

How to

Explanation:

Setler79 [48]2 years ago

6 0

Answer:

Thank you so much and may god bless you.

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A solid shaft is subjected to an axial load P = 200 kN and a torque T = 1.5 kN.m. a) Determine the diameter of the shaft if the

Rom4ik [11]

Answer:

a) 42 mm

b) 144.4 MPa

Explanation:

Load P = 200 kN = 200 x 10^3 N

Torque T = 1.5 kN-m = 1.5 x 10^3 N-m

maximum shear stress τ = 100 Mpa = 100 x 10^6 Pa

diameter of shaft d = ?

From T = τ * $\frac{\pi }{16}$ * $d^{3}$

substituting values, we have

1.5 x 10^3 = 100 x 10^6 x $\frac{3.142 }{16}$ x $d^{3}$

$d^{3}$ = 7.638 x 10^-5

d = $\sqrt[3]{7.638 * 10^-5}$ = 0.042 m = 42 mm

b) Normal stress = P/A

where A is the area

A = $\frac{\pi d^{2} }{4}$ = $\frac{3.142*0.042^{2} }{4}$ = 1.385 x 10^-3

Normal stress = (200 x 10^3)/(1.385 x 10^-3) = 144.4 x 10^6 Pa = 144.4 MPa

7 0

4 years ago

calculate the magnitude of the force acting on the pin at D. Pin C is fixed in DE and bears against the smooth slot in the trian

Olenka [21]

Answer:

hello your question lacks the required diagram attached below is the diagram

answer : 58.47 N

Explanation:

The magnitude of the force acting on the Pin D

Fd = $\sqrt{Dx^2 + Dy^2}$

= $\sqrt{16.80^2 + 56^2}$

= 58.465 N

Dx = 16.80 N

Dy = 56 N

hello attached below is the detailed solution

8 0

3 years ago

Discuss the chemical and physical properties of crude oil

mr Goodwill [35]

Answer:

Denser and more viscous crude oils have greater concentrations of other components, including resins and asphaltenes, which contain more polar compounds, often including “heteroatoms” of nitrogen, sulfur, and oxygen as well as carbon and hydrogen.

7 0

4 years ago

In casting experiments performed using a certain alloy and type of sand mold, it took 155 sec for a cube-shaped casting to solid

Tems11 [23]

Answer:

A) Cm = 2.232 s/mm²

B) Time taken to solidify = 74.3 seconds

Explanation:

(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³

There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²

So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm

Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;

Cm = 155/(8.333)²= 2.232 s/mm²

(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;

Volume of cylinder is;

V = (πD²L) /4

So,V = (π x 30² x 50)/4 = 35,343mm³

Surface area of cylinder is;

A = (2πD²)/4 + (πDL)

Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²

Volume/Area is;

V/A = 35,343/6126 = 5.77 mm

Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²

Since Cm =[Tts] /(V/A)²

Making Tts the subject, we have;

Tts =Cm x (V/A)²

Tts = 2.232 x (5.77)² = 74.3 seconds

3 0

3 years ago

List five pieces of personal safety equipment which must be in everyday use in the workshop

tatyana61 [14]

Answer:

safety glasses, hearing protection, respirator, work gloves, and work boots.

Explanation:

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3 0

3 years ago