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andreyandreev [35.5K]
3 years ago
10

Human population growth rates are increasing. Assuming that the biocapacity of earth does not change, what will need to happen t

o the average person's ecological footprint to best sustain our population
A. it will need to increase
B. it will need to decrease
C. it will need to become zero
D. it will need to stay the same
Physics
2 answers:
ollegr [7]3 years ago
5 0

I think the answer is A because if the population is increasing so should the ecological footprint shall increase with it.

iogann1982 [59]3 years ago
3 0

I think it would need to decress bro

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A star may form a black hole once it cannot ?
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A star may form a black hole once is true. After the marked supernova explosion, the star shrinks because it sheds away the gaseous layers of the star. And especially if the star is large, it will form into a black hole. 

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3 years ago
Científico que formuló 3 leyes de astronomía
s2008m [1.1K]

Answer:

El astrónomo alemán Johannes Kepler

Explanation:

Primera Ley:

Los planetas giran alrededor del Sol siguiendo una trayectoria elíptica. El Sol se sitúa en uno de los focos de la elipse.

La excentricidad e de una elipse es una medida de lo alejado que se encuentran los focos del centro.

Pues bien, la mayoría de las órbitas planetarias tienen un valor muy pequeño de excentricidad, es decir e ≈ 0. Esto significa que, a nivel práctico, pueden considerarse círculos descentrados.

Segunda Ley:

La recta que une el planeta con el Sol barre áreas iguales en tiempos iguales.Para que esto se cumpla, la velocidad del planeta debe aumentar a medida que se acerque al Sol. Esto sugiere la presencia de una fuerza que permite al Sol atraer los planetas, tal y como descubrió Newton años más tarde.

Tercera ley de Kepler:

La tercera ley, también conocida como armónica o de los periodos, relaciona los periodos de los planetas, es decir, lo que tardan en completar una vuelta alrededor del Sol, con sus radios medios.

Para un planeta dado, el cuadrado de su periodo orbital es proporcional al cubo de su distancia media al Sol.

4 0
4 years ago
A basketball player jumps straight upward. After 0,625 s, she is 0.441 m above the ground. What is her initial velocity?????????
Lunna [17]

Answer:

v₀ = 3.77 [m/s]

Explanation:

This problem can be solved in a simple way by means of the following equation of kinematics.

y=y_{o}+v_{o}*t+\frac{1}{2}*g*t^{2}

where:

y - yo = 0.441 [m]

Vo = initial velocity [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time = 0.625 [s]

0.441 = v_{o}*(0.625)-\frac{1}{2} *9.81*(0.625)^{2} \\2.357 = v_{o}*0.625\\v_{o}=3.77[m/s]

Note: The sign of the acceleration is negative since the movement of the basketball player is against of the gravity acceleration.

4 0
3 years ago
Which statement below can be made about the production of electricity in a nuclear reactor
ser-zykov [4K]

Answer:

Heat flows from the reactor to the water

Explanation:

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2 years ago
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Answer:

2.1ppm

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In order to calculate parts per million, ppm, we use the formula below.

Ppm= frequency (in hertz)/ MHZ

The signal at 2.1 ppm in a 1H NMR spectrum obtained using a 60-MHz spectrometer will still be the signal When the same sample is placed in a 300-MHz spectrometer, only the RESOLUTION will change.

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3 years ago
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