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lorasvet [3.4K]
3 years ago
13

Ayuda porfavor! y que sea buena respuesta..

Physics
1 answer:
Sav [38]3 years ago
8 0

Answer:

Dencidad = 600 kg/m³

Explanation:

Dados los siguientes datos;

Lado del cubo = 10 cm a metros = 10/100 = 0,1 m

Masa = 0,6 kg

Para encontrar la densidad;

En primer lugar, determinaríamos el volumen del cubo usando la fórmula;

Volumen del cubo = lados³

Volumen del cubo = 0.1³

Volumen del cubo = 0.001 m³

Ahora, podemos encontrar la densidad usando la fórmula;

Dencidad = masa/volumen

Dencidad = 0,6/0,001

Dencidad = 600 kg/m³

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When a certain gas under a pressure of 4.65 106 Pa at 21.0°C is allowed to expand to 3.00 times its original volume, its final p
Marina CMI [18]

Answer:

-72.0°C

Explanation:

PV = nRT

Since n, number of moles, is constant:

PV / T = PV / T

(4.65×10⁶ Pa) V / (21 + 273.15) K = (1.06×10⁶ Pa) (3V) / T

T = 201.16 K

T = -72.0°C

7 0
4 years ago
A 60 cm diameter wheel accelerates from rest at a rate of 7 rad/s2. After the wheel has undergone 14 rotations, what is the radi
Mamont248 [21]

Answer:

a=368.97\ m/s^2

Explanation:

Given that,

Initial angular velocity, \omega=0

Acceleration of the wheel, \alpha =7\ rad/s^2

Rotation, \theta=14\ rotation=14\times 2\pi =87.96\ rad

Let t is the time. Using second equation of kinematics can be calculated using time.

\theta=\omega_it+\dfrac{1}{2}\alpha t^2\\\\t=\sqrt{\dfrac{2\theta}{\alpha }} \\\\t=\sqrt{\dfrac{2\times 87.96}{7}} \\\\t=5.01\ s

Let \omega_f is the final angular velocity and a is the radial component of acceleration.

\omega_f=\omega_i+\alpha t\\\\\omega_f=0+7\times 5.01\\\\\omega_f=35.07\ rad/s

Radial component of acceleration,

a=\omega_f^2r\\\\a=(35.07)^2\times 0.3\\\\a=368.97\ m/s^2

So, the required acceleration on the edge of the wheel is 368.97\ m/s^2.

6 0
3 years ago
When passing another vehicle you are allowed to exceed the speed limit by?
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Series circuits are characterized by the fact that there is a single pathway by which charge can travel. True or false?
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Hope this helps
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Zane
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3 years ago
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Is it possible for two different atoms of carbon to have different numbers of neutrons in their nuclei? Explain.
bezimeni [28]

Answer:

Yes , it is possible  for two different atoms of carbon to have different numbers of neutrons in their nuclei .

Explanation:

Isotopes -

Atoms of the element with same number of the electrons and protons , but differ in the number of neutrons , are called as the isotopes .

The isotopes of the element have the same number of protons and electrons , hence have the same chemical and physical properties .

Many isotopes occurs naturally .

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