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3 years ago

Kinetic energy is defined as energy of an object in:

Engineering

2 answers:

Murrr4er [49]3 years ago

5 0

your answer is c. motion

Romashka-Z-Leto [24]3 years ago

5 0

In physics, the kinetic energy (KE) of an object is the energy that it possesses due to its Motion.

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All people<br><br><br>id 5603642259 pd 123456<br>on z o o m

algol [13]

Hello,

What is the ID Zoom for?

Like what in particular???

3 0

2 years ago

In a tensile test on a steel specimen, true strain is 0.171 at a stress of 263.8 MPa. When true stress is 346.2 MPa, true strain

swat32

Answer:n=0.973

Explanation:

Given

When True strain $\left ( \epsilon _T_1\right )=0.171$

at $\sigma _1=263.8 MPa$

When True stress $\left ( \sigma _2\right )$ =346.2 MPa

true strain $\left ( \epsilon _T_2\right )$ =0.226

We know

$\sigma =k\epsilon ^n$

where $\sigma$ =True stress

$\epsilon$ =true strain

n=strain hardening exponent

k=constant

Substituting value

$263.8=k\left ( 0.171\right )^n------1$

$346.2=k\left ( 0.226\right )^n-----2$

Divide 1 & 2 to get

$\frac{346.2}{263.8}=\left ( \frac{0.226}{0.171}\right )^n$

$1.312=\left ( 1.3216\right )^n$

Taking Log both side

$ln\left ( 1.312\right )=nln\left ( 1.3216\right )$

n=0.973

6 0

2 years ago

A wing generates a lift L when moving through sea-level air with a velocity U. How fast must the wing move through the air at an

vredina [299]

Answer:

V1 = 1.721 * V2

Explanation:

To start with, we assume that both lift forces are equal, such that

L2 = L1

1 is that of the level at 10000 m, and 2 is that of the level at sea level.

Next, we try and substitute the general formula for both forces such that

C(l).ρ1/2.V1².A = C(l).ρ2/2.V2².A

On further simplification, we have

ρ1.V1² = ρ2.V2², making V1 subject of formula, we have

V1 = √(ρ2/ρ1). V2²

Using the values of density for air at 10000 m and at sea level(source is US standard atmosphere), we have

V1 = √(1.225/0.4135) * V2

V1 = √2.9625 * V2

V1 = 1.721 * V2

4 0

2 years ago

A gas mixture containing 3 moles CO2, 5 moles H2 and 1 mole water is undergoing the following reactions CO2+3H2 →cH3OH + H2O Dev

Ilya [14]

Aaaaaaaaaaaaaaaaaaaaaa

7 0

2 years ago

For a steel alloy it has been determined that a carburizing heat treatment of 11-h duration will raise the carbon concentration

Jobisdone [24]

Answer:

Time =t2=58.4 h

Explanation:

Since temperature is the same hence using condition

x^2/Dt=constant

where t is the time as temperature so D also remains constant

hence

x^2/t=constant

2.3^2/11=5.3^2/t2

time=t^2=58.4 h

4 0

2 years ago