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raketka [301]
2 years ago
6

Which statement is equivalent to the following? x = x * 2; x = x * x; x * 2; x *= 2; None of these

Engineering
1 answer:
zzz [600]2 years ago
3 0

Answer:

x*=2

Explanation:

<em><u>MARK ME AS A BRAINLIST PLZ</u></em>

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Describe the "Bauschinger Effect" on the stress strain behaviour of steel
Rom4ik [11]

Answer:

The Bauschinger effect is the directionally determined change in the elasticity limit of a metal or alloy after primary plastic deformation. If you first deform a metal in one direction so that it is plastically deformed and then deform it in the opposite direction, the elastic limit in the opposite direction is lower.

From the point of view of the dislocation mechanism of plastic deformation, the Bauschinger effect indicates that during repeated deformation, it is easier for dislocations blocked in front of obstacles to move in the direction opposite to their movement during preliminary plastic deformation.

7 0
4 years ago
When its 100-hp engine is generating full power, a small airplane with mass 700 kggains altitude at a rate of 2.5 m/s. What frac
snow_lady [41]

For the given problem it is necessary to recap the concepts about Power, that is, is the rate of doing work or of transferring heat, i.e. the amount of energy transferred or converted per unit time.

The equation for power can be written as

P = FV

Where,

F= Net Force

V =Velocity

By the second newton law, force can be:

F = mg

Where m means the mass and g the gravity acceleration.

We can also write the equation as,

P = mgv

Replacing the values

P = 700*9.8*25

P = 17.15kW

Tenemos unidades en dos sistemas diferentes, por lo que convertimos los HP a Sistema internacional y tenemos que

1hp = 0.746kW

Then the fraction \etais,

\eta = \frac{17.15kW}{0.746kW}

\eta = 22.989

Therefore the fraction of the engine power is being used to make the airplane climb is 22.984%

5 0
3 years ago
If traffic is approaching on your left and there is a child riding a bike to your right, you should:
lianna [129]

Answer:

A. Move closer to oncoming traffic

Explanation:

If traffic is approaching on your left and there is a child riding a bike to your right, you should move closer to oncoming traffic.

4 0
3 years ago
Read 2 more answers
Air is compressed slowly in a piston-cylinder assembly from an initial state where P1 = 1.4 bar, V1= 4.25 m^3, to a final state
lord [1]

Answer:

W=-940.36 KJ

Explanation:

Given that

P_1=1\ bar,V_1=4.25 {m^3}

P_2=6.8\ bar

Process follows pv=constant

So this is the isothermal process and work in isothermal process given as

W=P_1V_1\ln \dfrac{P_1}{P_2}

Now by putting the values                (1.4 bar =140 KPa)

W=P_1V_1\ln \dfrac{P_1}{P_2}

W=140\times 4.25 \ln \dfrac{1.4}{6.8}

W=-940.36 KJ

Negative sign indicates that this is a compression process and work will given to the system.

7 0
4 years ago
Unwanted resistance is being discussed.
krok68 [10]
I don’t know if I’m right but I’m guessing B
6 0
4 years ago
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