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Anna [14]
3 years ago
7

Select the correct answer from each drop-down menu.

Physics
1 answer:
kirill115 [55]3 years ago
8 0

Answer:

A

Explanation:

I think but I am sure

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Calculate the weight of your energy car if it has a mass of 233.85 kg.
lianna [129]

Explanation:

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2 years ago
An airplane has an effective wing surface area of 17.0 m2 that is generating the lift force. In level flight the air speed over
olga_2 [115]

To solve this problem it is necessary to apply the equations given from Bernoulli's principle, which describes the behavior of a liquid moving along a streamline. Mathematically this expression can be given as,

P_1 + \frac{1}{2}\rho*v_1^2 + P_2 + \frac{1}{2}*\rho*v_2^2=0

Where,

P_i = Pressure at each state

\rho= Density

v_i = Velocity

Re-organizing the expression we can get that

P_1 - P_2 = \frac{1}{2}\rho (v_2^2 - v_1^2)

Our values are given as

v_1 = 40m/s

v_2 = 55m/s

\rho_{water} = 1.2kg/m^3 \rightarrow Normal Conditions

Replacing we have,

P_1 -P_2 = \frac{1}{2}*1.2*(55^2-40^2)

P_1 - P_2 = 855Pa

If we consider that there is a balance between the two states, the Force provided by gravity is equivalent to the Support Force, therefore

F_l = F_g

Here the lift force is the product between the pressure difference previously found by the effective area of the aircraft, while the Force of gravity represents the weight. There,

F_g = W

F_l = (P_2-P_1)A

Equating,

(P_1 - P_2)*A = W

W = 855*17

W = 14535 N

Therefore the weight of the plane is 14535N

3 0
3 years ago
what is the definition of sonic booms? HELP ASAP 50 POINTS !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! and breainliest
Morgarella [4.7K]

Answer:

a loud explosive noise caused by the shock wave from an aircraft traveling faster than the speed of sound.

Explanation:

8 0
2 years ago
Read 2 more answers
Alex goes cruising on his dirt bike. He rides 700m north, 300m east, 400 m north, 600m west, 1200m south, 300m east and finally
Bess [88]

Find Displacement and Distance

displacement ...

north is 700+400+100 =1200m n

south=1200m

1200-1200=0


east is 300+300=600m

west is 600m

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back at dtart. displ zero


distance is 700+ 300m + 400 m + 600m + 1200m + 300m + 100m  = 3600m


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3 years ago
Which of these things do you NOT want to have in your experiment? *
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You don't want a confound
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