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3 years ago

Where do meteores come from ?

2 answers:

8 0

All meteorites come from inside our solar system. Most of them are fragments of asteroids that broke apart long ago in the asteroid belt, located between Mars and Jupiter. Such fragments orbit the Sun for some time–often millions of years–before colliding with Earth.

melamori03 [73]3 years ago

6 0

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A person jumping out of speeding bus goes forward why?

kobusy [5.1K]

Answer:

gravity because its gravity and you fall and die

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3 years ago

Using calcium’s atomic structure, as shown in the image, what is this element’s atomic number?

ElenaW [278]

Answer:

Atomic number of calcium is 20.

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3 years ago

What type of relationship exists between the altitude and the atmospheric density, and what would the atmospheric density be at

777dan777 [17]

Answer:

So this means an increase in either will decrease the other factor like density is mass per unit volume and it's also difficult to calculate with only altitude of 1,291 kilometers that's given.

Explanation:

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3 years ago

before a collision, a 25 kg object is moving to the right at 12 m/s. Find the impulse acted on the object if, after the collisio

lutik1710 [3]

Answer:

455 kg m/s

Explanation:

The impulse acted on the object is equal to the change in momentum of the object:

$I=\Delta p$

and the change in momentum is equal to the product between the mass of the object and the change in velocity:

$\Delta p=m \Delta v=m (v-u)$

where:

m = 25 kg is the mass of the object

u = 12 m/s is the initial velocity of the object

v = -6.2 m/s is the final velocity of the object (we have taken a negative sign because the object now moves in the opposite direction)

Therefore, the impulse is

$I=\Delta p=m(v-u)=(25 kg)(12 m/s-(-6.2 m/s))=455 kg m/s$

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3 years ago

Why does bounce height increase when drop height is increased?

Anestetic [448]

If drop height increases the bounce height will increase. As the drop height increases so does the gravitational potential energy. (Which can be converted back into kinetic energy) energy lost in air resistance will cause the ball to not bounce very high.

6 0

3 years ago