PHYSICS HIGH SCHOOL

2 QUESTIONS HELP PLZ...:/Which of the following is not part of the structure of a comet?

A. Coma
B. Head
C. Dust tail
D. Nucleus

How far can light travel in one year?

A. 300,000 km
B. 30 million km
C. 10 trillion km
D. 100 billion km

THANKS IF ANYONE CAN HELP =)

Answers

Answer 1
Answer: The first one is: head
Second one is: 10 trillion km

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it is said that a fool and his money ate soon parted.Suppose we place the fool and gold brick in the middle of a frictionless,frozen lake (Galileo's ideal frozen lake).How can the fool rescue himself?Is he still a fool?

Answers

He could theoretically push the gold brick away from himself, and due to Newton's 3rd law (Every action has an equal and opposite reaction), the same amount of force would recoil back at him from the gold brick. As a result, he will move in the opposite direction from the gold brick, and since it as an ideal frozen lake (meaning there is no friction present), he will keep going until he reaches the edge of the lake.

And I don't know if he's still a fool. That's up to you.

One result of wave refraction is that _____.wave energy is concentrated on headlands projecting into the water
wave energy is largely dissipated before the waves reach shore
wave energy is concentrated in the recessed areas between headlands
headlands are enlarged by sediment deposited on their seaward side

Answers

I think the correct answer from the choices listed above is the first option. One result of wave refraction is that wave energy is concentrated on headlands projecting into the water. Refraction of waves involves a change in the direction of waves as they pass from one medium to another.

 One result of wave refraction is that wave energy is concentrated on headlands projecting into the water. Refraction of waves involves a change in the direction of waves as they pass from one medium to another.

Explanation:

Refraction of waves comprises a change in the management of waves as they traverse from one medium to different. Refraction, or the bending of the track of the waves, is conducted by a transition toward speed and wavelength of the waves.

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Answers

   I think it #3(not Sure) I think Its because of their long wavelengths that tsunamis behave as shallow-water waves.                


Under which conditions will the volume of a gas be greatest?A. T=300K and P=0.25 atm
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Answers

Answer:

help me please

Explanation:

'When we see something that exists in real life, there are many different ways to display imagery and importance using art. What the artist _____________ depends on what he/she wants to communicate.'

Answers

Answer:

Emphasizes

Explanation:

The expression of an art is intelligible to those that understand it, as such to make an impression an artist has to emphasize the point they want to communicate

An art is an expression of the personal experiences of the artist or a reaction to events or to reveal the realities as seen by the artist such as global warming and the environment, so as to get the attention of people with the goal to change them, such that a good art changes the most people, hence the need for emphasis.

Answer:

A - emphasizes

Which statement describes characteristics of a concave lens? A concave lens diverges light and curves inward. A concave lens diverges light and curves outward. A concave lens converges light and curves inward. A concave lens converges light and curves outward.

Answers

The correct answer is

A concave lens diverges light and curves inward.

A picture of a concave lens and the ray diagram produced by it can be seen in attachment. As it can observed, the concave lens (also called diverging lens) is wider at the edges and narrow at the centre (so, it curves inward), and it can also be seen that the lens diverges the incoming light rays.

A concave lens diverges light and curves inward is the statement which

describes its characteristics.

What is a Concave lens?

This type of lens is used to treat short-sightedness and has at least one of

its surface curving inward. This helps it to spread out light rays so as to

ensure proper view.

It has a high degree of diffraction and is the reason why option A was

chosen as it's the most appropriate choice.

Read more about Concave lens here brainly.com/question/3140453
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