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natima [27]
3 years ago
11

The tendency of an object to resist any change in its motion is known as?

Physics
2 answers:
kvv77 [185]3 years ago
7 0
It's inertia. A rule that you see every day, for example a brick will stay in the same spot unless a force acts on it.
jek_recluse [69]3 years ago
4 0

Answer:

Inertia

Explanation:

The tendency of an object to resist any change in its motion is known as its inertia. The first law of motion is also known as the law of inertia. The inertia of an object can change its speed and the direction of motion. It is related directly to the mass of an object.

A body having more mass will have more inertia while a body having less mas will have less inertia.

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Una ambulancia se desplaza por la calle a 34 m/s emitiendo un estruendoso sonido de sirena a 304 Hz, Si usted se ALEJA de la amb
Alik [6]

Answer:

f = 295.06 Hz

Explanation:

Este es un típico ejercicio de efecto doppler donde tenemos una fuente emisora de una frecuencia.

En este caso, vemos una ambulancia que se está desplazando a cierta velocidad emitiendo una frecuencia particular. Un observador que está en la calle decide alejarse, corriendo a una velocidad, que obviamente es menor que la de la ambulancia, pero el caso es que se está alejando de la fuente emisora del sonido, en este caso de la ambulancia.

Como se están alejando, podemos usar la siguiente expresión:

f = (v - v₀ / v) * f₀

Donde:

f: frecuencia percibida por la persona.

v: velocidad de la ambulancia

v₀: velocidad de la persona

f₀: frecuencia emitida por la ambulancia.

Teniendo todos esos valores, solo debemos reemplazar en la expresión:

f = (34 - 1 / 34) * 304

f = (33/34) * 304

<h2>f = 295.06 Hz</h2>

Espero te ayude

6 0
3 years ago
What type of energy does an object gain as it is lifted at a constant speed?
marshall27 [118]
D. Gravitational potential
7 0
3 years ago
Which of the following is a small star that has reached the end of its stellar evolution?
Akimi4 [234]
D.) White Dwarf

It is the smallest star whose mass is approximately equal or greater than 1.4M
Here, M = mass of the Sun.

Hope this helps!
3 0
3 years ago
Read 2 more answers
Calculate the energy (in eV/atom) for vacancy formation in some metal, M, given that the equilibrium number of vacancies at 296o
Schach [20]

Explanation:

The given data is as follows.

       Temperature of metal = 296^{o}C = (296 + 273) K

                                            = 569 K

     Density of the metal = 8.85 g/cm^{3} = 8.85 \times 10^{-6} g/m^{3}      (as 1 cm^{3} = 10^{-6} m^{3})

     Atomic mass = 51.40 g/mol

    Vacancies = 9.19 \times 10^{23} m^{-3}

Formula to calculate the number of atomic sites is as follows.

           n = \frac{\rho \times N_{A}}{\text{atomic weight}}

              = \frac{8.85 \times 10^{-6} \times 6.022 \times 10^{23}}{51.40 g/mol}

              = 1.036 \times 10^{17} atom/m^{3}

Now, we will calculate the energy as follows.

                E = -KT \times ln (\frac{\text{no. of vacancies}}{\text{no. of atomic sites}})

where,    K = 8.62 \times 10^{-5}

         E = -8.62 \times 10^{-5} \times 569 K \times ln (\frac{9.19 \times 10^{23}}{1.036 \times 10^{17} atom/m^{3}})

               = 78.46 eV/atom

Therefore, we can conclude that energy (in eV/atom) for vacancy formation in given metal, M, is 78.46 eV/atom.

6 0
4 years ago
The gravitational force
vivado [14]
<span>b. weakens as 1/d, where d is the distance between objects.</span>
3 0
3 years ago
Read 2 more answers
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