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3 years ago

Latitude and longitude picture.

Physics

1 answer:

TiliK225 [7]3 years ago

7 0

Answer:

where? please comment it

Explanation:

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A 6cm diameter horizontal pipe gradually narrows to 4cm.

Rom4ik [11]

Answer: $Q=0.5612 m^3/s$

Explanation:

Given

diameter of pipe( $d_1$ )=6 cm

diameter of pipe( $d_2$ )=4 cm

$P_1=32 kPa$

$P_2=24 kPa$

$A_1=\frac{\pi }{4}6^2=9\pi cm^2$

$A_2=\frac{\pi }{4}4^2=4\pi cm^2$

$v_1=\frac{Q}{A_1}$

Applying bernoulli's equation

$\frac{P_1}{\rho g}+\frac{v^2_1}{2g}+z_1=\frac{P_2}{\rho g}+\frac{v^2_2}{2g}+z_2$

$\frac{P_1}{\rho g}+\frac{\frac{Q^2}{A_1^2}}{2g}+z_1=\frac{P_2}{\rho g}+\frac{\frac{Q^2}{A_2^2}}{2g}+z_2$

since $z_1=z_2$

$\frac{32\times 10^3}{10^3\times 9.81}+\frac{Q^2}{2A_1^2g}=\frac{24\times 10^3}{10^3\times 9.81}+\frac{Q^2}{2A_2^2g}$

$Q^2=\frac{8\times 2\times 81\pi ^2\times 16\pi ^2\times 10^{-4}}{65\pi ^2}$

$Q^2=3149.3722\times 10^{-4}$

$Q=\sqrt{3149.3722\times 10^{-4}}$

$Q=0.5612 m^3/s$

4 0

3 years ago

The kinetic and potential energies of an object both always depend on which property?.

hichkok12 [17]

Answer:

the object's position.

Explanation: might help ion know

5 0

3 years ago

Which of these answers best describes a fossil?

Anettt [7]

Answer:

Explanation:

The definition of a fossil is the preserved remains of a prehistoric organism or is slang for someone or something that is outdated. An example of a fossil is the preserved remains from a prehistoric organism that have been preserved inside rock.

6 0

4 years ago

Read 2 more answers

A velocity selector is built with a magnetic field of magnitude 5.2 T and an electric field of strength 4.6 × 10 ^ 4 N/C. The di

nydimaria [60]

Explanation :

Magnetic field, B = 5.2 T

Electric field, $E=4.6\times 10^4\ N/C$

The directions of the two fields are perpendicular to each other. Hence the force due to each field will equate each other.

Electrostatic force, F =qE.........(1)

Magnetic force, F = qvB........(2)

From equation (1) and (2)

E = v B

$v=\dfrac{E}{B}$

$v=\dfrac{4.6\times 10^4\ N/C}{5.2\ T}$

$v=0.88\times 10^4\ m/s$

$v=8.8\times 10^3\ m/s$

Hence, the correct option is (a).

(2) A permanent magnet always has two poles as the North pole and south pole. The magnetic field lines start from north poles and terminate at the south pole of the magnet.

Hence, the correct option is (C).

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3 years ago

In which situation is work being done?

Darina [25.2K]

<span>D.) The force and displacement are in the same direction.

Hope this helps!</span>

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4 years ago

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Latitude and longitude picture.​

Latitude and longitude picture.