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melisa1 [442]
3 years ago
12

Two meanings of identifying are one particular moment, and a quantity or interval

Physics
2 answers:
shutvik [7]3 years ago
7 0
Time are two meanings of identifying what are one particular moment and quantity or interval. In addition, time is a continuous measurable quantity in which events occur in a sequence proceeding from the past over the present to the future and an interval splitting two points of this quantity and a duration. 
Rufina [12.5K]3 years ago
7 0

Answer:

I think it's "Two meaning of identifying TIME are one particular moment, and a quantity or interval

Explanation:

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his is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Air enters a nozzle steadi
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Answer:

his is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Air enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 192 m/s. The inlet area of the nozzle is 90 cm2.

determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

a)0.7956kg/s

b)5.437 × 10⁻³m²

Explanation:

The concepts related to the change of mass flow for both entry and exit is applied

The general formula is defined by

\dot{m}=\rho A V

Where,

\dot{m} = mass flow rate\\\rho = Density\\V = Velocity

values are divided by inlet(1) and outlet(2) by

\rho_1 = 2.21kg/m^3V_1 = 40m/s

A_1 = 90*10^{-4}m^2\\\rho_2 = 0.762kg/m^3\\V_2 = 192m/s

PART A) Applying the flow equation

\dot{m} = \rho_1 A_1 V_1\\\dot{m} = (2.21)(90*10^{-4})(40)\\\dot{m} = 0.7956kg/s

PART B) For the exit area we need to arrange the equation in function of Area, that is

A_2 = \frac{\dot{m}}{\rho_2 V_2}\\A_2 = \frac{0.7956}{(0.762)(192)}\\A_2 = 5.437*10^{-3}m^2

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If an object is placed between a convex lens and its focal point, which type of image will be produced?
Delvig [45]

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A

Explanation:

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