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3 years ago

One who is trained in math, science and physics in order to work in a branch of engineering

Engineering

2 answers:

slava [35]3 years ago

8 0

Mechanical engineer I’m pretty sure

yanalaym [24]3 years ago

8 0

Yes it is mechanical engineering

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Early American rockets used an RC circuit to set the time for the rocket to begin re-entry after launch (true story). Assume the

koban [17]

Answer:

C = 0.3 F

Explanation:

The expression for a voltage in a capacitor with an initial voltage V₀, as a function of time, is given by the following equation:

$V= Vo*e^{-t/RC}$

When V = =.37*V₀, we have the following expression:

$\frac{V}{Vo} = e^{-t/RC} = 0.37$

Applying ln to both sides, we have:

$\frac{-t}{RC} = ln 0.37 = -1$

⇒ t = R*C

if t= 300 s, and R = 10³ Ω, we can solve for C as follows:

$C = \frac{t}{R} = \frac{3e2 s}{1e3 ohms} = 0.3 F$

So, the required value for C is 0.3 F.

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3 years ago

A 3-m wide rectangular channel has a flow velocity of 1.8 m/s when the depth of flow is 1.2 m. what will be the flow velocity wh

valina [46]

Answer:

The flow velocity reduces to 0.72 m/s

Explanation:

According to the equation of continuity discharge in the channel should remain same

Thus we have

$A_{1}V_{1}=A_{2}V_{2}$

For a rectangular channel we have $Area=Depth\times Width$

Applying values in the continuity equation and since the width of the channel remains constant 3.0 m we have

$3\times 1.8\times 1.2=3\times 3\times V_{2}\\\\\therefore V_{2}=\frac{6.48}{9}=0.72m/s$

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3 years ago

Help me! Phone Phoebe on 07375410044.

natulia [17]

Answer:

yes maam

Explanation:

4 0

3 years ago

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The Web and Digital Communications pathway is broken down into four main categories of technology. Which category BEST describes

jasenka [17]

D marketing because he’s advertising ski equipment to buy

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2 years ago

When hermetic refrigerant motor-compressors are designed to operate continuously at currents greater than 156 percent of the rat

ANEK [815]

The nameplate of a hermetic refrigerant motor-compressor that is designed to operate continuously at currents greater than 156% of the rated-load current is marked with branch-circuit selection current.

<h3>What is a hermetic refrigerant motor-compressor?</h3>

A hermetic refrigerant motor-compressor can be defined as a mechanical device that is designed and developed by combining a compressor and motor in a single outer-welded steel shell.

Basically, a hermetic refrigerant motor-compressor is used in the following areas:

Household refrigerators

Freezers

Heat pumps

Air coolers

Water cooling equipment.

Small refrigeration equipment.

According to HSE, the nameplate of a hermetic refrigerant motor-compressor that is designed to operate continuously at currents greater than 156% of the rated-load current is marked with branch-circuit selection current, so as to ensure safety for end users and technicians.

Read more on refrigerants here: brainly.com/question/2928084

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2 years ago