Friday

February 24, 2017
Total # Posts: 53

**AP physics**

Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to stimulate gravity is to shape the spaceship like a cylindrical shell that walking on the inside surface. Explain how this simulates gravity. Consider (a) how object fall...

*November 6, 2016*

**Geometry I**

Thank you for answering, still I don't completely know how looking at A''(-x+4,y-6) you can determine there is a second reflection, I know first reflection over Y will be A' (-x,y), but do you get that the second is a reflection too and it is not a rotation.

*October 16, 2016*

**Geometry I**

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-6), This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't ...

*October 16, 2016*

**Geometry I**

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-^, This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't ...

*October 16, 2016*

**AP physics**

Two planes approach each other head-on. Each has a speed of 780 km/hour,and they spot each other when they are 10.0 km apart. How much time do the pilots have to take evasive action?

*September 21, 2016*

**AP physics**

A person going for a morning jog an the deck of a cruise ship is running toward the bow (front) of the ship at 2.0m/s while the ship is moving ahead at 8.5m/s. What is the velocity of the jogger relative to the water? Later, the jogger is moving toward the stern (rear) of the ...

*September 21, 2016*

**AP physics**

A rescue plane wants to drop supplies to isolated mountains climbers on Rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4m/s), how far in advance of the recipients (horizontal distance) must the good be dropped? "Dropped" (...

*September 21, 2016*

**AP physics**

A student preformed a sphere drop experiment from 1.50m above ground and the sphere has a mass of 0.875kg. Free fall times for the students experiment are below. Calculate the average acceleration due to gravity from the students data. Free fall times (s) 0.553 0.700 0.557 0....

*September 20, 2016*

**AP physics**

Thank you!

*September 20, 2016*

**AP physics**

Galileo carried out his seminal free-fall experiment using and incline plane. Why is such and approach feasible,and sometimes preferable to the simple drop meathod, for determining g?

*September 20, 2016*

**AP physics**

Can two vectors, of unequal magnitude, add up to give the zero vector? Can three unequal vectors? Under what condition?

*September 17, 2016*

**AP physics**

Thank you :)

*September 12, 2016*

**AP physics**

A store is dropped from the top of a Cliff. It is seen to hit the ground below after 3.55s.How high is the cliff?

*September 12, 2016*

**AP physics**

Two locomotives approach each other on parallel tracks. Each has and average spend of 150 km/h with respect to the ground. If they are initialy 8.5 km apart, how Long will it be before they reach each other?

*September 12, 2016*

**english 2**

What is brainstorming? using a type of outline for drafting making an illustration or map of a place for ideas jotting down a list of possible ideas for a topic working together in groups to polish a piece of writing

*July 17, 2015*

**math**

The Blue Ridge Trail starts at Park Headquarters in Big Bear Park and goes up the mountain. The Green Creek Trail starts at Park Headquarters and goes down the mountain. The table gives elevations of various points of interest in relation to Park Headquarters. How many points ...

*March 11, 2015*

**Chemistry**

How much Tris do you need to weigh out to make 250 ml of the 50 mM buffer? A. 0.95g B. 1.51g C. 2.42 D. 1.75g

*September 13, 2014*

**Physics**

the answer is pi t , number 4.

*July 2, 2014*

**Math**

I don't know

*March 10, 2014*

**Statistics**

Mrs. Marble gave her 5th grade class a math test. The scores reflect a relatively normal distribution. The mean score for the group was 80 with a standard deviation of 8. Based upon this information, answer the following questions: Bobby scored exactly two standard deviations ...

*January 27, 2013*

**ALGEBRA 1**

Stu has $21.40 in dimes and quarters for a totl of 100 coins. How many of each kind of coin does he have?

*May 29, 2012*

**ALGEBRA 1**

A JET FLIES WITH THE WIND AT 1100km/hr and 750 km/hr against the same wind. Find the rate of the wind and speed of the plane PLEASE INCLUDE THE EQUATION OR SET FOR SOLUTION

*May 29, 2012*

**ALGEBRA**

In a math contest each team is asked 50 questions. The team earns 15 points for each correct answer and loses 8 for each incorrect answer. One team finished with 566 points. How many questions id the team answer correctly?

*May 27, 2012*

**algebra**

Wild rice sells for $6 pound, and plain rice sells for $1 per pound. A grocer wants 10 pounds if the mixture to sell for $2 per pound. How much of each type should he used?

*May 27, 2012*

**Reading**

okay, that makes sence... Thank you so much Ms. Sue

*February 14, 2012*

**Reading**

What does it mean to say "I don't want to sound to hostile"???? Please answer in small words so that I can understand, sorry if that sounds rude but I am dyslexic.

*February 14, 2012*

**Reading**

what is an easy definition for the word "accent"?

*February 14, 2012*

**Mathematics**

2/5g = 3/5 Thanks

*January 30, 2012*

**Math Help**

I have to use one variable in an equation. How?

*January 30, 2012*

**Math**

You are fantastic. So fast. Thanks. So 14.5 divided by 4 friends will be 3.625 so the answer will be 4 each one. Right?

*January 30, 2012*

**Science**

Caleb is holding a metal block in his hand. What could he do to decrease the thermal energy of the block? a) cool it b) drop it c) hit it d) melt it

*November 16, 2011*

**English**

thank you for your help

*November 16, 2011*

**English**

I need synonymous and antonyms of 1) bluster 2) commentary 3) facet 4) synopsis 5) tarry 6) setback 7) fidelity I need this seven words to finish my homework . Pleaseeeee

*November 16, 2011*

**Math**

I didn't understand Ms. Sue. Please can you explain to me how can you get this answer. Thank you for your time.

*November 15, 2011*

**Math**

A Japanese beetle has a length between 0.3 and 0.5. Find two lengths that are within the given span. Write them as fractions in simplest form.

*November 15, 2011*

**Calculus**

The annual inventory cost C for a manufacturer is C=(1,008,000/Q)+6.3Q where Q is the order size when the inventory is replenished. Find the change in annual cost when Q is increased from 350 to 351, and compare this with the instantaneous rate of change when Q=350.

*October 3, 2011*

**Calculus**

A ball is thrown straight down from the top of a 220-foot building with an initial velocity of -22 feet per second. What is its velocity after 3 seconds? What is its velocity after falling 108 feet?

*October 3, 2011*

**Calculus**

Find k such that the line is tangent to the graph of the function. Function: f(x)=kã(x) Line: y=x+4

*October 3, 2011*

**Calculus**

Determine the point(s) (if any) at which the graph of the function has a horizontal tangent line for y=(3^1/2)x+2cos(x), 0¡Üx<2¦Ð

*October 3, 2011*

**Math**

how to figure possible set of scores for 15 students that would result in the class average of 66

*September 20, 2011*

**Business**

George Wilkins checked the spreadsheet where he keeps track of his assets and liabilities. He discovered that (i) he owes $80,000 on his house, which he believes to be worth $150,000; (ii) his car is worth $20,000, against which there is $2,000 on the remaining bank loan; (iii...

*April 17, 2011*

**business**

. George Wilkins checked the spreadsheet where he keeps track of his assets and liabilities. He discovered that (i) he owes $80,000 on his house, which he believes to be worth $150,000; (ii) his car is worth $20,000, against which there is $2,000 on the remaining bank loan; (...

*April 17, 2011*

**Math 7th**

Write a description of each rule 2. (x,y) --> (x + 5, y - 2)

*December 12, 2010*

**Math 7th**

Write a descripition of each rule 1. (x,y) --> ( x- 11, y +4)

*December 12, 2010*

**Math**

I guessed 2 ...

*October 6, 2010*

**english**

I need a description of a major theme from The Robber Bridegroom by Eudora Welty, please please please. -Preferably the theme with "Jamie Lockhart is the bandit of the woods. And the bandit of the woods is Jamie Lockhart" Thank you!!!

*May 12, 2010*

**2nd grade**

the homework is about quotation marks. Add quotion marks if the sentence needs them. Write an x after the sentence if quotation marks are not needed. 1.- Cal wants to collect rocks. 2.- He asks, Mom, can I have a bucket for my rocks?. 3.- His mom gives him a big bucket. 4.- ...

*April 28, 2010*

**Geometry**

year go to the homework helper i have to do the same thing.

*April 5, 2010*

**us.history**

i have a question that say on a cart for each section: In the first column, write notes to describe how the inventions and trends of the 1920s changed american life. in the second column write the name of a related company or product that contributed to the boom of the 1920s. ...

*January 19, 2010*

**Trig.**

Why is the arctan of (- square root of 3) 5 pi/6. How come it isn't broken down to 5 pi/3 since I got 10 pi/6 and that reduces to 5pi/3

*December 15, 2009*

**crt 205**

I need an example of a nonprejudicial rhetorical devices

*November 24, 2009*

**Axia**

how might a person distinguish between the prejudicial snd nonprejudicial use of rhetorical devices?

*November 24, 2009*

**math**

explain why tan 60degree=root3.

*November 6, 2009*

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