# Astronomy Grade 9( PLEASEEE HELP!!!!!!!!!!!!!!)

13,574 results

**Astronomy Grade 9( PLEASEEE HELP!!!!!!!!!!!!!!)**

What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?

**astronomy**

what good has astronomy produced?

**astronomy**

Two stars in a binary system are determined from their position on the H-R diagram and the mass-luminiosity relation to have a combined mass of 8 M. Their orbital period, P, is 1 year. What is their orbital seperation, a? http://en.wikibooks.org/wiki/Astronomy/Mass

**Astronomy Grade 9**

What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?

**earth**

If the Earth has so much mass, then how does it "float"? (My 8th grade Astronomy class trying to figure this out. -Lauren

**Astronomy**

Few question about astronomy: 1.how many centimetres is equivalent to a light-nanosecond 2. How long is an astronomical unit (AU) in light-minutes (1min, i.e., the distance that light travels in a vacuum in one minute)? Please show the calculation if there is any Thanks

**astronomy**

what are the contributions of astronomy?

**astronomy**

what is the meaning of astronomy?

**ALGEBRA I HELP PLEASEEE!!!!**

(39w+ 14 + 10w squared) / 72+ w =]

**Math**

f(x)=1/x, g(x)=3X+1 find: f(g(3)) how do i do thiss... f(g(-2)) g.g, g.f, f.g, pleaseee help:)thanks for your timeee

**Math**

f(x)=x/x^2 – x find limit??? Pleaseee thnks

**CHEMISTRY HELP**

IF ANYONE CAN HELP ME WITH MY HOMEWORK AND EXPLAIN EXACTLY HOW TO GET THE ANSWERSSS PLEASEEE HELP

**math help pleaseee (: ! <345**

sqrt32x + 3sqrt8x help please !

**calculus**

Solve the equation for x. e^ax=Ce^bx, where a cannot equal b Can someone explain this pleaseee!

**Calculus**

If x + 7y = 29 is an equation of the line normal to the graph of f at the point (1,4), then f'(1) = PLEASEEE HELP!

**PsyDAG How can i inteview you?**

remember that statistics assignment of ours? pleaseee

**grammar**

can someone proofread my homework? is just 5 pages.pleaseee is urgent

**Chemistry**

DrBob222 please help me answer the question that I posted pleaseee, pleaseeee

**helppp pleaseee**

How many days on average can you survive without food or H20?

**simple easy math question PLEASEEE HELPP!!!**

is this true? log^2 x = (logx)^2

**math**

7x-3y+4z=18 13x+6y+8z=30 11x-9y-12z=16 Find x,y,z please show the solution pleaseee

**Math**

Find all x, -4pi < x < 6pi, such that [cos(x/3)]^4 + [sin(x/3)]^4 = 1 PLEASEEE HELPP! :(

**world cultures**

i need help on knowing that the cultural changes between Umayyad and Abbasid. pleaseee! thank you

**Math Help Pleaseee**

Find the surface area for the given prism a. 564in^2 b. 664in^2 c.1,120in^2 d.1,080in^2

**science**

If Deneb and Rigel were located at alpha Centauri's distance from earth, how would they appear? PLEASEEE HELPPPPPP!!!!!!!!!!

**PHYSICAL SCIENCES**

Which of the following elements has eight valence electrons? A. argon B. beryllium C. chromium D. oxygen . CAN SOMEONE HELP ME, PLEASEEE :D

**Physicss**

Fast pleaseee Calculate speed of a 50 kg boy travelling on his bike his kinetic e is 1250 J I did v= 2KE/m i got 50? Help

**Gr.12 ENGLISH**

what are some major themes in the short story "The Storyteller" by H.H Munro(also known by pen name Saki) pleaseee help thanx :)

**science -- urgent**

can you pleaseee list all the things that Earth needs to provide us with life?? like energy, carbon, and so on.. THANKS A LOT!

**c++**

Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function Letter_Grade () that ...

**physics**

a kangaroo jumps to a vertical height of 2.55m.How long was it in the air before returning to Earth? pleaseee anwser it is due in 1 day!!!!

**math help pleaseee (: ! <345**

the sales tax rate in a certain state is 5% find the total price paid for a apair of shoes that cost $47

**calculus**

find the volume of the unlimited solid obtained by revolving y=1/(x^4 +1) around its asymptote, show work. helllpp pleaseee, I have no idea how to do this...

**math log PLEAseee helpp pretty please!!!**

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)

**STATISTIC**

z = 1.8 for Ha: µ > claimed value. What is the P-value for the test? A. 0.9641 B. 3.59 C. 96.41 D. 0.0359 My answer is B ,NEED HELP PLEASEEE

**world histor**

what are three major events, ideas, or poicies that contributed to the end of the soviet Union? including something about easern europe! help pleaseee!!

**math!! help pleaseee**

5: 2 = 8 : 10 please explain to me how to do thissss :( im so lost and i have to one to turn to or any math books or anything.

**math**

Helppp me! Need this in about 10 min. earlier the better!!!! pleaseee:) anyways... neg. 9/10 plus neg. 1/6 =?

**PLEASEEE GEOMETRY**

POINT H,I,J AND THREE POINTS ON A LINE W/ COORDINATE -4/5 , -1/SQRT5 AND -1/10. WHICH POINT BETWEEN THE OTHER TWO ?

**math**

PLEASEEE HELPPP Evaluate exact values, if they exist? if any doesn't exist state so. a) (in randians) sin^-1(-1/√2)

**math help pleaseee**

One of the zeros of the function f(x)=x^3-28x-48 is x=-4. Factor the function. Show your work. How do I solve this?? Please help??

**social studies**

i need a map of washington state that has the major cities physical features and the borders of washington and boundries pleaseee !!!!!!!!!!!!!!!

**math**

write a four equations in slope-intercept form of four different lines that are parallel and graph the line ?? HELP pleaseee!! thank you

**10th grade**

The ultimate task of all the explorations launched by the Europeans from the fourteenth century onward was? A. finding a sea link between Europe and the wealthy civilizations of Asia. B. establishing European political dominion over all of Asia. C. perfecting European ...

**Math Lit**

In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.

**chemistry**

The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2 . can someone help me pleaseee!!

**Choosing High School Courses**

I want to major in something English or History related, probably Secondary Education, International Studies, or Journalism. I am currently enrolled in chemistry and I am doing horribly. Would colleges rather see me take chemistry and get a bad grade, or would they prefer me ...

**english**

- Computers - English - Foreign Languages - Health - Home Economics - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten - Elementary School - 1st Grade - 2nd Grade - 3rd Grade - 4th Grade - 5th Grade - 6th Grade - 7th Grade - ...

**Astronomy**

Need some help with Astronomy. I need to figure out the acceleration of gravity on the surface of certain planets. For example, I need to find the acceleration of gravity on Mars when the mass is .11 times the mass of Earth and the radius is .53 times the radius of Earth. ...

**Math**

What is neg. 9/10 + neg. 1/6? Pleaseee help im stuck:/

**pre calc**

how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!!

**MATH**

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)

**math**

I have a question I would really appreciate the answer. If 15% of my grade is 74% and 96 is 15% of my grade and 40% of my grade is a 60.5% without the final counting for 30% what is my grade? Please help thank you.

**astronomy**

Even though I do not believe the Big Bang is what created the universe(although what people clam the bing bang was would have been similar to what happened when God said "Let there be light" I still have astronomy hw. haha. I am having trouble with this question. The big bang ...

**physics/algebra HELP!!!!**

i am having so much trouble rearranging these equations! i know the answers to them but i don't understand how to get them.. The original equation is W= Q(B-C)/C what is B? what is Q? What is C? B is supposed to be C(W+Q)/Q Q is supposed to be WC/(B-C) and C is supposed to be ...

**medical Terminology**

The most easily treated tumor is A. Grade I. B. Grade V. C. Grade III. D. Grade X. A is my answer

**Physics help pleaseee**

A cable with 21.2 N of tension pulls straight up on a 1.10 kg block that is initially at rest. What is the block's speed (in m/s) after being lifted 2.42 m assuming that the local acceleration due to gravity is 9.80 m/s2?

**History Please Please**

Could you please explain to me: how was the structure (Collosus of Rhodes) effective for it's stated purpose? I don't understand the question and I need something for my project. Pleaseee.

**Math - average grade**

Does anyone know how to calculate average point grade? I have the following data: grade D - 2 students - 4,9 percent grade C - 6 students - 14,7 percent grade B - 12 students - 29,2 percent grade A - 21 students - 51,2 percent What is the average grade? This is NOT my homework...

**algebra**

An “A” is considered 4.0, a “B” is 3.0, a “C” is 2.0, a “D” is 1.0, and an “F” is 0. In your first semester you received the following grades. Calculate your grade point average English = credits 3.0 Grade = C Biology = credits 4.0 Grade = B Communications...

**Reading check pleaseee**

Which word best describes the theme of "Sympathy" by Paul Laurence Dunbar? hope restriction admiration activity I choose C only because it seems more sense but I'm still a little confused...

**pre-calculus**

how do uu find the x int. , y int. , domain range asymtote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.

**pre calc**

how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.

**science**

I have to find out some facts about the dwarf planet vulcan. I have tried wikipedia but it was no help. Can any one please give me some facts or websites that can. This may be what you need. http://www.space.com/scienceastronomy/astronomy/epsilon_vulcan_000804.html

**11th grade**

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?

**english**

which is not an example of an idiom found in "Miss Rosie"? a. "when I watch you" b. "[you] used to be called" c. "waiting for your mind" d. "I stand up" i remember asking this before a long time ago...i think someone siad both a and b are correct, but that can't be. there has ...

**Math**

My son has the numbers 1-12. In a square all sides must add up to 25. Each number can only be used once apart from the corners as they will be used twice to form the square pleaseee hellpppp

**ELECTRICITY AND MAGNETISM**

a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b? please some on SOLVE it and send me ON my emial after got solved pleaseee ?

**Physics HELPPP PLEASEEE**

A 0.60 kg sphere rotates around a vertical shaft supported by two strings, as shown. If the tension in the upper string is 18 N. Calculate the tension in the lower string? the rotation rate (in rev/min) of the system?

**math**

Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade?

**astronomy**

Why is the sky blue?

**Astronomy**

What is the radius of the sun?

**Astronomy**

The saros cycle

**statistics**

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B” grade to the next 10% of...

**Astronomy**

What is the phenomenon of differentiation and how does it occurs

**Astronomy**

Why are there different types of galaxies?

**astronomy**

How long is the precession cycle?

**Astronomy**

What type of spectrum is sunlight?

**classroom instruction**

Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i need help finding information on the state of wisconsin and 1st grade P.E.

**Chemistry 2 Ap**

Can someone please help me ? What mass of glycerol must be dissolved in 200.0 g of water to give a solution with a freezing point of -1.50? im not sure how to even start this problem. I think i would find the moles in water first, then the grams in glycerol after? Pleaseee help!

**appling middle**

If the data were displayed in a circle graph, what percent of the graph would represent the seventh grade? Enrollment is Sixth grade 64, Seventh grade 64, and Eighth grade is 70

**Astronomy**

The precession of the Earth its causes, and its ramifications

**astronomy**

What does supernova produce, helium or carbon?

**astronomy**

What does supernova produce, helium or carbon?

**Astronomy**

What is the Lorentz factor for a spaceship traveling at 0.5c?

**Astronomy**

what are the largest stars in the HR diagram called?

**astronomy**

big bang theory define

**Astronomy**

How to find the orbital radius of a planet?

**astronomy**

which of the statment about CMB are true?

**Astronomy HELP**

when does a full moon rise and set?

**Astronomy**

F = GM1M2/R2 = (6.67x10-11 x 1.9891x1030 x 25) / (3000)2 =

**Math Word Problem**

Riding on a school bus are 20 students in ninth grade, 10 students in tenth grade, 9 students in eleventh grade, and 7 students in twelfth grade. Approximately what percent of students on the bus are in ninth grade? How do I go about solving this?

**Math 157-1**

Use the data in the grade-distribution Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade Frequency A 2 B 8 C 11 D 2 F 1 How would the graph change if there were twice as many of each ...

**astronomy**

why does Venus have such a high Albedo

**astronomy**

on which planets would you weih more than on the earth?

**Astronomy**

Venus orbits 0.72 AU from the sun. What is that distance in kilometers?

**Astronomy**

Venus orbits 0.72 AU from the sun. What is that distance in kilometers?

**Astronomy**

Explain what occurs during tidal friction?

**Astronomy**

How many degrees of longitude does the Sun move in each hour?

**ASTRONOMY**

Compare Einstein and Newton's pictures of gravity.