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4 years ago

The Solar System extends to a distance of at least 100,000 A.U., which is the same as saying...

Physics

1 answer:

Mariulka [41]4 years ago

5 0

Answer:

a. It extends to about 100,000 times the distance between the Earth and the Sun.

d. Stars are born from clouds of gas and dust, and when they die they return gas and dust to the galaxy from which new stars can be born.

b. Kind of interesting

Explanation:

The average distance between the sun and the earth is called one astronomical unit.
It is the unit of length to measure the distance in our solar system.
It is equal to 1.49 x 10¹¹ m
It is analogous to the light-year to measure the distance of distant stars.
So according to this unit, our solar system extends about 100,000 times the distance between the Earth and the Sun.

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Una grúa está subiendo una caja de 1000 kg atada a una cadena. La caja, que inicialmente está en reposo, incrementa su velocidad

BabaBlast [244]

Answer:

40 metros en 10 segundos.

Explicación:

Una grúa está levantando una caja de 1000 kg atada a una cadena y la caja, que inicialmente está en reposo, aumenta su velocidad en 4 m / s por segundo, por lo que si la región de colocación está a 40 metros de distancia, la grúa tarda 10 segundos en completar el proceso. tarea de movimiento y colocación de la caja. La grúa se utiliza para levantar y mover cargas pesadas, máquinas, materiales y mercancías para diferentes propósitos. Entonces el trabajo realizado por la grúa depende de la velocidad y la distancia de colocación.

3 0

3 years ago

If you leave home at 1:00 and get to your friends house at 5:00, what was your average speed?

ella [17]

Depends how far you live from your friend

4 0

3 years ago

Read 2 more answers

a car having an initial velocity of 6 m/s east slows uniformly to 2 m/s east in 2.0 s what is the acceleration of the car during

melomori [17]

Answer:

-1 m/s/s West

Explanation:

Vf = Vi + at

2 = 6 + 4a

-4 = 4a

a = -1

7 0

3 years ago

4. Both trains speed up all the time.

Anit [1.1K]

Answer:

The velocity with which the ball strikes the ground = -5.7 m/s

The velocity with which the ball leaves the ground = 4.3 m/s

Explanation:

Seems like there's parts of a couple questions. I'll focus on the tennis ball part which seems to be a full question.

To find the velocity with which the tennis ball hits the ground, we only need to worry about what happens up to that point. We can ignore the rebound for this part. Given:

d = -1.85

a = -9.8

vi = 0

vf = ?

$v_f^2 = v_i^2 + 2ad\\v_f^2=0+2(-9.8)(-1.65)\\v_f^2=32.34\\v_f=-5.7$

*Keep in mind that the square root gives us two answers, a positve and a negative one. We use the negative one here because the final speed is downwards and the question says down is negative.

To find the velocity with which the ball leaves the ground, we only need to worry about what happens after that point. We can ignore the drop for this part. Given:

d = 0.947

a = -9.8

vf = 0

vi = ?

$v_f^2 = v_i^2 + 2ad\\0=v_i^2+2(-9.8)(0.947)\\v_i^2=18.56\\v_i=4.3$

*Here we use the positive speed after the square root because we know the ball is going up, which the question designates as the positive direction.

4 0

3 years ago

Poverty and backwardness are also considered as the cause of rapid population growth. Why????

alexandr402 [8]

because poor and people of back places may not have enough knowledge about contraceptive devices and may not have enough money to buy it.That's why poverty and backwardness are considered to be a cause of population growth

6 0

3 years ago