2 years ago

A conceptual issue can be resolved by which of the following?

Engineering

1 answer:

Mumz [18]2 years ago

4 0

Answer:

Investigation or empircial research

Explanation:

gimme brainliest pls

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Ferroconcrete is reinforced concrete that combines concrete and ________. A. Lead c. Copper b. Iron d. Aluminum.

Sveta_85 [38]

Answer:

b. Iron

Explanation:

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2 years ago

A 3-phase induction motor is being driven at a frequency of 80 Hz, and the motor speed is 1000 rpm. How many poles does the moto

Masteriza [31]

Answer:

8 poles

Slip= 16.67%

Explanation:

We use the formula for synchronous speed, $N_s=\frac {120 f}{p}$

Where f is the frequency and p is the number of poles

Since frequency is given as 80 Hz and the motor speed also given as 1000 rpm then making p the subject of the above formula we get

$p=\frac {120 f}{N_s}$

By substitution

$p=\frac {120 \times 80}{1000}=9.6\approx 8 poles$

To find the slip, we now use the actual $N_s$ and since we know that $N_s=\frac {120 f}{p}$ and p=8 then

$N_s=\frac {120 \times 80}{8}=1200$

The motor speed is now $N_r=1000 rpm$

To find slip, we use the formula

$Slip=\frac {N_s- N_r}{N_s} \times 100$

Then by substitution

$Slip=\frac {1200-1000}{1200}\times 100=0.166666667\times 100\approx 16.67$

Therefore, slip=16.67%

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3 years ago

Which cod is the best whoever has the best awnser gets brainliest

Gnesinka [82]

Explanation:

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3 years ago

An aluminum bar 125 mm long with a square cross section 16 mm on an edge is pulled in tension with a load of 66,700 N and experi

AfilCa [17]

Answer: the modulus of elasticity of the aluminum is 75740.37 MPa

Explanation:

Given that;

Length of Aluminum bar L = 125 mm

square cross section s = 16 mm

so area of cross section of the aluminum bar is;

A = s² = 16² = 256 mm²

Tensile load acting the bar p = 66,700 N

elongation produced Δ = 0.43

Δ = PL / AE

we substitute

0.43 = (66,700 × 125) / (256 × E)

0.43(256 × E) = (66,700 × 125)

110.08E = 8337500

E = 8337500 / 110.08

E = 75740.37 MPa

Therefore, the modulus of elasticity of the aluminum is 75740.37 MPa

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2 years ago

What is the IMA of a fixed pulley

Amanda [17]

Answer:

Not sure

Explanation:

Looking now

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3 years ago

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