PHYSICS HIGH SCHOOL

Before we can use parallax to measure the distance to a nearby star, we first need to know:?a. the distance to the nearest star besides the Sun
b. the month in which the star is observed
c. the Earth-Sun distance
d. the Sun's mass

Answers

Answer 1
Answer: The correct answer for the question that is being presented above is this one: "c. the Earth-Sun distance." Before we can use parallax to measure the distance to a nearby star, we first need to know the Earth-Sun distance. The correct option among all the options that are given in the question is the third option or option "C". Astronomers normally use parallax for measuring the distances of the stars that are nearby. 

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Approximately, how far is the earth from the Sun? 15,000 km 150,000 km 150,000,000 km 150,000,000,000 km

Answers

Answer: Earth is around 150,000,000 km far from the Sun.

Explanation:

Earth is the third planet in Our Solar System which revolves around the Sun.

The distance of Earth from Sun is 149.6 million kilometers which can be approximated to 150 million km.

Using the conversion factor:

\text{1 million km}=10^6km

Now, converting 150 million km to kilometers, we get:

\text{150 million km}=150*n 10^6km=150,000,000km

Hence, Earth is around 150,000,000 km far from the Sun.
the earth is approximately 150,000,000 km away from the sun

Calculating average speed

Answers


Average speed =

               (distance covered during some period of time)
divided by
               (length of time to cover that distance).

The distance from point A to point B is known as the A) wave height. B) wavelength. C) amplitude. D) volume.

Answers

Answer:

The answer is B wavelength

Answer:B) wavelength

Explanation:The distance from point A to B is the wavelength. It can be measured from crest to crest or trough to trough.

List three adjectives that can be used to describe a hue that is high intensity.

Answers

Vivid, vibrant, rich.

A ray of light is travelling from north towards south and it has travelled 49 km until it hit a mirror which reflected the light towards east. The ray of light reflected towards east has travelled 47 km until it hit another mirror which reflected it diagonally towards the initial point which is north. How long is the line reflected towards north diagonally? Round the result to two decimals.

Answers

The path is a right triangle. One side of this triangleis 49 km long, the other side is 47 km long.

The hypotenuse is the the diagonal line searched.

So use Pythagora's theorem to find the diagonal line:

Diagonal = √[(47km)^2 + (49km)^2] = 67.90km

What does the ozone layer absorb?a. Microwaves
c. UV radiation
b. X-rays
d. Infra-red radiation

Answers

The ozone layer absorbs UV (ultraviolet) radiation. The answer is letter C. the ozone layer is able to oxidize the electros and photons in the UV rays so that the light that can pass through can be not harmful to humans.
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