All categories

3 years ago

PLEASE HELP URGENT!!!!!!!!!!

Physics

1 answer:

astra-53 [7]3 years ago

7 0

Answer:

Nucleosynthesis

Nucleo means "core" as in atomic assembly of protons and neutrons.

Synthesis means "to make"

You might be interested in

What is the most effective way to protect dry lands from desertification

Sonja [21]

Answer: Planting a tree belt.

Explanation:

The most effective method by which the desertification of the soil can be controlled is by planting more and more trees.

The process of desertification occurs when there is a loss of vegetation, water bodies and animals from a particular area. Loss of trees makes the area look like desert.

So, planting trees along with some irrigation will help to cope with problem.

4 0

3 years ago

Read 2 more answers

What features make a question scientific, and why are some questions beyond the boundaries of scientific investigation?. .Cite a

Temka [501]

<span>A question is scientific when it can be answered by using logic and scientific information we have currently, or if there is scope for it to be answered in future because of further development in technology / theories. Scientific questions are based on facts that are observed, just like that of magnet attracting bits of iron, etc. Few questions like existence of God / existence of demons are beyond science as they are not based on any observation.</span>

8 0

4 years ago

What is the phase of the Moon if it . . .

anzhelika [568]

Answer:

Waxing Gibbous

Third quarter

Waning Gibbous

Explanation:

If moon rises at 3:00 pm then the phase of the moon will be "Waxing Gibbous".

This is because, the moon is actually not fully illuminated but has achieved more than half of its full illumination.

If the moon is highest in the sky at sunrise then the phase of the Moon will be the "Third quarter"

This is because of the fact that at this position moon will rise at midnight, thus it will be at the highest point at the time of the sunrise.

If the moon sets at 10:00 am then the phase of the Moon is "Waning Gibbous"

This is because of the fact that at this position the Moon is moving towards becoming new Moon but at the same time, the moon is illuminated more than its half illumination.

8 0

3 years ago

muscular movement involving the walls of the digestive tract that serve to mix materials and move them along the track

Elden [556K]

Contractions I think

5 0

4 years ago

3. In a physics lab, 0.500-kg cart (Cart A) moving rightward with a speed of 100 m/s collides with a 1.50-kg cart (Cart B) movin

Alex787 [66]

Answer:

The speed of the two carts after the collision is 10 m/s.

Explanation:

Hi there!

The momentum of the system Cart A - Cart B is conserved because there is no external force acting on the system at the instant of the collision. Then, the momentum of the system before the collision will be equal to the momentum of the system after the collision. The momentum of the system is calculated as the sum of momenta of cart A and cart B:

initial momentum = mA · vA1 + mB · vB1

final momentum = (mA + mB) · vAB2

Where:

mA = mass of cart A = 0.500 kg

vA1 = velocity of cart A before the collision = 100 m/s

mB = mass of cart B = 1.50 kg.

vB1 = velocity of cart B before the collision = - 20 m/s

vAB2 = velocity of the carts that move as a single object = unknown.

(notice that we have considered leftward as negative direction)

Since the momentum of system remains constant:

initial momentum = final momentum

mA · vA1 + mB · vB1 = (mA + mB) · vAB2

Solving for vAB2:

(mA · vA1 + mB · vB1) / (mA + mB) = vAB2

(0.500 kg · 100 m/s - 1.50 kg · 20 m/s) / (0.500 kg + 1.50 kg) = vAB2

vAB2 = 10 m/s

The speed of the two carts after the collision is 10 m/s.

6 0

3 years ago