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Vlad [161]
3 years ago
9

Find the order of magnitude of your age in seconds.

Physics
1 answer:
Masteriza [31]3 years ago
4 0

Answer:

order of my age is 8 in seconds.

Explanation:

Suppose my age is 20 years.

Now, as we know that:

1 year has 365 days

1 day has 24 hours

1 hour has 60 minutes

1 minute has 60 seconds.

So my age in seconds will be:

age=20\times 365\times24\times60\times60

age=6.3072\times 10^{8}\ s

Therefore the order of my age is 8 in seconds.

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Write a hypothesis about the use of an object’s physical characteristics to determine its density. Use the format "if . . . then
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Answer:

∧·······∵·······∴·······Hello :D········∴·······∵·······∧

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How can density of an object be determined?: If the mass of an object increases then its density increases because density is directly proportional to mass.

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Explanation:

<h2>Hope this helps! </h2><h2 />
8 0
3 years ago
In a liquid with a density of 1500 kg/m3, longitudinal waves with a frequency of 410 Hz are found to have a wavelength of 7.80 m
ahrayia [7]

Answer:

The bulk modulus of the liquid is 1.534 x 10¹⁰ N/m²

Explanation:

Given;

density of the liquid, ρ = 1500 kg/m³

frequency of the wave, F = 410 Hz

wavelength of the sound, λ = 7.80 m

The speed of the wave is calculated as;

v = Fλ

v = 410 x 7.8

v = 3,198 m/s

The bulk modulus of the liquid is calculated as;

V = \sqrt{\frac{B}{\rho} } \\\\V^2 = \frac{B}{\rho}\\\\B = V^2 \rho\\\\B = (3,198 \ m/s)^2 \times 1500 \ kg/m^3\\\\B = 1.534 \ \times 10^{10} \ N/m^2

Therefore, the bulk modulus of the liquid is 1.534 x 10¹⁰ N/m²

5 0
3 years ago
A paper pinwheel is spinning in the wind. Which statement is correct about the forces responsible for the rotation?
VikaD [51]

Answer:

Only the perpendicular component of gravity is responsible for the rotation because wind points toward the pivot.

Explanation:

3 0
3 years ago
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