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2 years ago

When a comet enters the inner solar system, what part of the comet always points most directly away from the Sun

Physics

2 answers:

d1i1m1o1n [39]2 years ago

8 0

Answer:

Comet Tail

Explanation:

A comet tail— and coma — are characteristics that are evident in comets when the Sun illuminates them and can become apparent from Earth when a comet travels through the inner part of the Solar System.

While a comet enters the inner part of solar system, sunlight causes the toxic materials inside the comet to vaporize and float out of the center, sweeping away particles with them.

Two, distinct tails are created from dust and gases, being visible by different occurrences; the dust simply reflects sunlight, and the gasses shine through ionization.

Snowcat [4.5K]2 years ago

5 0

Answer:

ionic Coma tail

Explanation:

The Coma of the comet points most directly away from the sun. Coma is the tail formed by the vapor of the ice mass of the comet when comet approaches close to the sun while revolving around it.

This vapor gets ionized on getting closer to the sun and form a halo like structure around the comet other than the vapor tail.

These tails always point away from the Sun as the comet travels around it under the influence of the solar winds.

The vapor and dust tail is least affected by the solar flare since they are larger than the ions of hydrogen.

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Eating 2500 Cal every day a friend of mine maintains a stable weight of 70 kg. One day, after eating 3500 Cal, he decided to do

Kaylis [27]

Answer:

Explanation:

Calories to be burnt = 3500 - 2500 = 1000 Cals .

Efficiency of conversion to mechanical work is 25 % .

Work needed to burn this much of Cals = 1000 x 100 / 25 = 4000 Cals.

4000 Cals = 4.2 x 4000 = 16800 J .

Work done in one jump = kinetic energy while jumping

= 1/2 m v²

= .5 x 70 x 3.3²

= 381.15 J .

Number of jumps required = 16800 / 381.15

= 44 .

4 0

1 year ago

Why is the following situation impossible? Two identical dust particles of mass 1.00 µg are floating in empty space, far from an

Igoryamba

Answer:

This is a conceptual problem so I will try my best to explain the impossible scenario. First of all the two dust particles ara virtually exempt from any external forces and at rest with respect to each other. This could theoretically happen even if it's difficult for that to happen. The problem is that each of the particles have an electric charge which are equal in magnitude and sign. Thus each particle should feel the presence of the other via a force. The forces felt by the particles are equal and opposite facing away from each other so both charges have a net acceleration according to Newton's second law because of the presence of a force in each particle:

$a=\frac{F}{m}$

Having seen Newton's second law it should be clear that the particles are actually moving away from each other and will not remain at rest with respect to each other. This is in contradiction with the last statement in the problem.

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2 years ago

two forces P and Q pass through a point A which is 4 ft to the right of and 3 ft above a moment center O. force P is 200 lb dire

valentinak56 [21]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

The moment of the resultant of these two forces with respect to O 376 lb-ft CCW which is <span>about moment center point O.</span>

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2 years ago

If a ball was thrown upward at 46.3 m/s how long would the ball stay in the air

galben [10]

$V = Vo + a.t

$

The ball is against the vector of gravity. Then, the gravity will be negative.

$0 = 46,3 + (-9.8).t \\ 
t = \frac{46.3}{9.8} \\ 
t \approx 4.72 

$

The ball will stop in the air after approx. 4.72 seconds. And will take the same time to hit the ground.

It will stay approx. 9.44 seconds in the air.

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2 years ago

According to the article, which pattern of brain waves are most conducive to studying new information?

sashaice [31]

Alpha brain waves are those most conducive to studying new information.

When consciously alert, we generally function along a beta brain rhythm. In diminishing this rhythm to alpha, we transition into a state of physical and mental relaxation that is ideal for learning new information and storing facts and data. Studies have shown that the effect of decreasing brain rhythm is linked to feelings of increased mental clarity and remembrance. As it is a prime condition for synthetic thought and creativity, it becomes easier to visualize and create associations (information is better learned and absorbed by using such study methods).

Hope this helps! :)

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2 years ago