Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

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1. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

Give your answer to this question below!

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1. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by : Astronomy question please help 10 points. How much power is the Sun producing in total?
The radiation flux from the Sun is approximately 1000 Watts per square metre at the surface of
the Earth. Starting from this basic observation (and assuming that all quantities given are
averaged over a large wavelength range), answer the following questions. Show all working
and draw diagrams where appropriate.
a) How much power is the Sun producing in total?
b) Spectroscopic measurements show that the surface temperature of the Sun is 5800 K. Use
this information and the answer to part a) to work out the radius of the Sun.
c) The apparent magnitude of the Sun is -26.7 when observed from the Earth. What is the
absolute magnitude of the Sun?
d) Work out the absolute magnitude of a white dwarf star with a surface temperature of 40,000
K and a radius of 6,000 km. Could you see it without a telescope?
e) What would the apparent magnitude of this white dwarf be were it to replace the Sun in our
own Solar system?

Best answer:

Answer by B T
With current Technology to answer this question is impossible. However, NASA is making a satellite that will travel to the sun and get more accurate readings on it.

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by Zyada

Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

What do you think? Answer below!

Related posts:

1. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

Know better? Leave your own answer in the comments!

Related posts:

1. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

Know better? Leave your own answer in the comments!

Related posts:

1. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by bios005: Astronomy homework word problem?
I can’t even get through it. Please help!

Contrary to popular perception, spacecraft en route to some destination in the Solar System are not traveling under rocket power. Engines off, they fly in Solar orbits like everything else. One way to get a craft from Earth to a destination in the Solar System is to put it in an elliptical orbit. For an object more distant from the Sun than Earth, one would select an orbit with its perihelion (point of nearest approach to the Sun) at 1 AU and it aphelion (farthest from the Sun) at the destination’s orbit (this would be reversed for a destination like Mercury).
If this trajectory were chosen, how long would the trip from low-Earth orbit to the target take? How long did the actual trip take? If the two are different, why?

Best answer:

Answer by Irv S
Maybe I missed it, but I think you fail to
specify a target.

What do you think? Answer below!

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Question by kelleygaither2000: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Best answer:

Answer by J B
why not?

What do you think? Answer below!

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1. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
2. can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?
3. Q&A: can we celbrate earth day by planting a rose bush?(we were going to plant a tree,but can’t afford a sapling?

Question by Hannah;: 5 ScIENCE QUESTIONS ABOUT THE PLANETS (MATH) HELP!!=)?
The astronomical unit AU is the average distance from the Earth to the Sun, measured to be about 1.5 X 10 (power of km. It is a convenient unit to use when discussing distances within our solar system.

1.) Saturn has an average distance of 9.5 AU from the sun. How many centimeters is this?
2.) Pluto, the outermost planet of the solar system, is about 6 X 10 (power of 9) km from the sun. How many astronomical units (AU) is this?

The light-year is defined as the distance that light travels in a year. (The speed of light is 3 X 10 (power of 5) km/s. For instance, Alpha Centauri, the closest star to the Earth after the Sun, is 4.3 light-years from us.
3.) How long does it take light from the star to reach us?
4.) The star Betelgeuse, meaning “armpit of the giant, is 310 light-years from the Earth. How many hours does light from this star take to reach earth?
5.) How many AU’s are in a light-year? (HINT: There are 31,536,000 seconds in a year.)

HELP!
Thanks SO much!

Best answer:

Answer by fallen-chan
1) 9.5 x1.5 x 10^8 x 10^5 (<- convert from km to cm) = 1.425 x 10^16

2) 6 x 10^9 / 1.5 x 10^8 = 40

3) ...I think it'd just be 4.3 years, because the star is 4.3 light-years away and 1 light-year is how far light travels in 1 year.

4) 310 x 365 (number of days/year) x 24 (number of hours/day) = 2715600

What do you think? Answer below!

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Question by Lir: At a certain location, the solar power per unit area reaching Earth’s surface is 200?
At a certain location, the solar power per unit area reaching Earth’s surface is 200 W/ m^2, averaged over a 24-hour day. If the average power requirement in your home is 3 kW and you can convert solar power to electric power with 10 % efficiency, how large a collector area will you need to meet all your household energy requirements from solar energy? (Will a collector fit in your yard or on your roof?

Please Help. It would be much appreciated. Thank so much!

Best answer:

Answer by kirchwey
It’s simple math.
1 m^2 of solar panel generates an average 10%*200 W = 20 W.
You need an average 3000 W, which is 150 times as much, so you need 150 m^2 of solar panel.
An average power of 3000 W is pretty large for a typical house. Is there a sawmill hidden inside?

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