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julsineya [31]
3 years ago
14

1 A hole opened up in the metal being welded is called ____-through.

Engineering
1 answer:
SCORPION-xisa [38]3 years ago
6 0
When a hole opens its called burn through
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A 3.7 g mass is released from rest at C which has a height of 1.1 m above the base of a loop-the-loop and a radius of 0.2 m . Th
Dmitrij [34]

Answer:

Normal force = 0.326N

Explanation:

Given that:

mass released from rest at C = 3.7 g = 3.7 × 10⁻³ kg

height of the mass = 1.1 m

radius = 0.2 m

acceleration due to gravity = 9.8 m/s²

We are to determine the normal force pressing on the track at A.

To to that;

Let consider the conservation of energy relation; which says:

mgh = mgr + 1/2 mv²

gh = gr + 1/2 v²

gh - gr = 1/2v²

g(h-r) = 1/2v²

v² = 2g(h-r)

However; the normal force will result to a centripetal force; as such, using the relation

N =mv²/r

replacing the value for v² = 2g(h-r) in the above relation; we have:

Normal force = 2mg(h-r)/r

Normal force = 2 × 3.7 × 10⁻³ × 9.8 ( 1.1 - 0.2 )/ 0.2

Normal force = 0.065268/0.2

Normal force = 0.32634 N

Normal force = 0.326N

6 0
3 years ago
a steal bar with 1 in diameter has been subjected to a tensile force of 3 tons find tensile stress in the bar
Marysya12 [62]

Answer:

stress = 8,556 Psi.   or  (stress = 59 Mpa)

Explanation:

stress = force / area

force P = 3 tons (convert to lbs. for units consistency)

1 ton = 2240 lbs.

P = 6,720 lbs.

steel bar Diameter D = 1 in. (convert to d

Area of steel bar = (π *  1²) / 4 = 0.785 in²

therefore, stress = 6720 lbs. / 0.785 in²

stress = 8,556 Psi.

in Mpa ----- 8556 Psi * 0.00689476 MPa/Psi = 59 Mpa

6 0
3 years ago
Computers work with only two states: zero and one (e.g. short , tall)and is known as binary however in fuzzy logic there are ran
Ymorist [56]

Answer:

1) a)True

   b) False

2) False

2. True

4. True

5. True

Explanation:

1.a)Computers work with only two states: zero and one which is true, the language is in 1 and 0 which is called binary

b)in fuzzy logic there are range of states such as short, little tall, very tall etc...

That is false because Fuzzy logic contains also ones and zeros (Binary).

2)2. This is false because by combining the three colors we will get only

256*256*256 color and we don't get billions of colors

eg:R G B

255 0 0 -->one color

220 0 200---> one color

Due to the difficult economic times, increased global competition, demand for customization, and increased consumer sophistication, many companies have increased their investment in hiring many employees, and outsource & off shore middle managers True or False

yes this may be True because By increased global competition, demand for customization the product needs to be developed. And for development of new products we need employees, managers etc. This in-turn increases the outsourcing of offshore middle managers.

A mouse driver (software) can have a virus if its program gets infected true or False

This is True

It depends on the virus file. Some program need to be execute perfectly if it can be infected with virus. Some applications need not run because of virus files both the situations are possible.

5)Many managers were able to tackle y2k on time and saved billions. true or False;

This is True. After the year 2000, a lot of managers are able to control billions of people because many of the Top MNC's are tackled more by managers.

5 0
4 years ago
What would happen if an exposed film was accidentally placed in the fixer before being placed in the developer
Eduardwww [97]
Do you still want this answered
5 0
3 years ago
The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700°C is 2 × 10-6. Calculate the number of vacancies
True [87]

Answer:

1.16*10^{23} vacancies/m^3

Explanation:

Data given

temperature =700c

Density=10.35g/cm^3

but

\frac{N_v}{N}=2*10^{-6}\\N_v=2*10^{-6}N\\

Nv is the number of vacant site and N is the number of lattice site.

Since the number of lattice site can also b computed as

N=\frac{p_{Ag} * N_A}{A_{AG}} \\N=\frac{6.022*10^{23} * 10.35*10^6g/m}{107.87g/mol} \\N=5.78*10^{28}atom/m^3

if we substitute the value of the number of lattice into the first equation, we arrive at

N_v=2*10^{-6} *5.78*10^28\\N_v=1.16*10^{23} vacancies/m^3

4 0
4 years ago
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