Thursday

January 19, 2017
Total # Posts: 1,838

**physics**

Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 5100 km above the earth's surface.

*March 14, 2013*

**physics**

Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of exerting a force of 1720 N on the rope, what is the maximum speed (in meters/second) he can tolerate at the lowest point of his swing? His mass is 81.0 kg, and the vine is 12.0 ...

*March 14, 2013*

**Algebra**

Help Please!! Write the orderd pair describing the coordinates of each intercept : x-intercept: 17 : y-intercept: 3/4

*March 14, 2013*

**science**

Describe how you would go about making 1200mL of 0.100 Molarity HNO3 from a concentrated solution that is 12 Molarity?

*March 14, 2013*

**English**

No because they are a list of general items not specific things

*March 13, 2013*

**trig**

A road runs from the base of a mountain. From two points 235 meters apart on the road, the angles of elevation to the top of the mountain are 43 and 30. how high above the road is the mountaintop?

*March 13, 2013*

**trig**

A road runs from the base of a mountain. From two points 235 meters apart on the road, the angles of elevation to the top of the mountain are 43 and 30. how high above the road is the mountaintop?

*March 13, 2013*

**English**

Only number two is grammatical because no one goes strongly abroad an some day can't be described by strongly.

*March 13, 2013*

**Algebra 1**

The slope is one so to be parralel it has to be the same y+7=x-2

*March 13, 2013*

**3rd math**

a clock starts at 5:05. what time is it after the minute hand rotates 12 degrees

*March 13, 2013*

**Math(problem solving)**

4 darts are thrown at this dart board if all 4 darts hit the board how many different points are possible bullseye 9 2nd circle 7 third circle 4 outer circle 1

*March 6, 2013*

**chemistry quick homework help**

linear

*March 4, 2013*

**math**

A bag has 6 green marbles and 4 orange marbles.Find the least number of marbles of either color you would add to make the probability of picking an orange marble

*February 25, 2013*

**PLEASE HELP!!! ALGEBRA**

That is a Algebra Question. EVERYBODY has a problem with this question. Anyway this is a problem I tell everybody, I'm sorry I can not answer

*February 19, 2013*

**Physics**

A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For ...

*February 14, 2013*

**Physics**

A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For ...

*February 14, 2013*

**Physics**

A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of 7.00×10-8 F and to ...

*February 14, 2013*

**Physics**

The stored electrical energy of a 350-μ F capacitor charged to 1.20×104 Volts is converted to thermal energy by discharging the capacitor through a heating element submerged in 548.0 g of water in an insulating cup. What is the increase in temperature of the water ...

*February 14, 2013*

**Physics**

A salami sandwich is dropped from the top of a 37 m tall construction crane. What is the speed of the sandwich when it is halfway to the ground? (Use conservation of energy!)

*February 12, 2013*

**Math**

The diameter is 9.3 meters what is the circumference and area?

*February 11, 2013*

**physics**

a 50 kg student who is late runs up two flights of stairs whose combined vertical height is 7.0 m in 10 s (and he then silently enters the classroom while the professor is writing on the chalkboard).Calculate the student's power output in doing work against gravity in a) ...

*February 5, 2013*

**PLEASE CHECK THESE ANSWERS AMERICAN GOV**

Grade Details - All Questions Question 1. Question : The nerve center of the American Presidency is Student Answer: the President’s Cabinet. CORRECT the Executive Office of the President. the Congressional houses. the Civil Service. Instructor Explanation: The answer can ...

*February 3, 2013*

**History**

a source for tobacco

*February 3, 2013*

**history**

an official permit? a source for tobacco. residents of the Jamestown are before 1607?

*February 3, 2013*

**Physics**

A light plane attains an airspeed of 491 km/h. The pilot sets out for a destination 785 km due north but discovers that the plane must be headed 20.5° east of due north to fly there directly. The plane arrives in 2.25 h. What was the magnitude of the wind velocity? What ...

*January 26, 2013*

**Calc**

A particle moves along the x-axis in such a way that it's position in time t for t is greator or equal to 0 is given by x= 1/3t^3 - 3t^2 +8 A) show that at time t= 0 the particle is moving to the right. B) find all values of t for which the particle is moving to the left. ...

*January 25, 2013*

**Physics**

thank you so much!

*January 17, 2013*

**Physics**

Two equally charged insulating balls each weigh 0.42 g and hang from a common point by identical threads 35 cm long. The balls repel each other so that the separation between their centers is 6.4 cm. What is the magnitude of the charge on each ball? I have tried using similar ...

*January 17, 2013*

**chemistry**

To what volume should you dilute 50.5 of a 4.60 solution so that 30.0 of the diluted solution contains 3.30 of

*January 12, 2013*

**9th grade algebra**

2x^2+5x+2

*January 10, 2013*

**math**

thanks! thought so!

*January 10, 2013*

**math**

factor 8x+16 do you take out a 4 and get (4x-4)(4+4) OR 8(x+2)

*January 10, 2013*

**Science**

What is the function of turgor pressure?

*January 9, 2013*

**math (calculate speed)**

9.6

*January 8, 2013*

**Math**

3^2 is 9 6^2 is 36 4^3 is 64 93*9 is 837 837-36-64 is 737

*January 7, 2013*

**Chemistry**

2 ml of 1M HCl 0 ml of H2O 3ml of .3M Na2S2O3 How do I find the initial and final concentrations of both HCl and Na2S2O3?

*January 7, 2013*

**science**

Yes, humidity! It can not be raining but have a humidity of say 90 percent which is still considered precipitation. Like when you walk out side and it feels muggy and wet in the air.. But there is no rain.

*January 7, 2013*

**Ap chemistry**

How to calculate initial concentration, preferably with a general example??

*January 7, 2013*

**math**

It triples every 15 mins. So that's 3x's greator. There are 4, 15 min intervals in an hr so 3 x 3 x 3 x 3=81 times greator than when you started

*January 7, 2013*

**algebra**

15d+27d-9d

*January 4, 2013*

**English**

Thanks got 100% 1.)Compound sentence 2.)Simple sentence 3.)C 4.)B 5.)Complex

*December 28, 2012*

**math**

Mr.Lewis drew a triangle measurement, x, .5x, and 1.5x. What is the best classification for this triangle? a. acute, scalene b. obtuse, scalene c. right, equilateral d. equiangular, equilateral e. obtuse. isosceles (i don't understand how to solve this problem)

*December 27, 2012*

**Math!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!**

Solve the following exponential equations. 8(6^2x+5)=7^3x-4

*December 26, 2012*

**Math!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!**

The sound intensity of a rainfall is 4.5×10^-9 W/m^2. Find the corresponding sound intensity level.

*December 24, 2012*

**math:)**

If the given point is on the terminal arm of an angle A in standard position, angle A is greater than or equal to 0 degrees and it is less than or equal to 180 degrees, find the measure of angle A, to the nearest tenth of a degree. a) (4,3) b) (12,5) c) (-6,8) d) (-24,7) ...

*December 18, 2012*

**statistics**

Based on data from the Federal Bureau of Investigation, violent crimes in a recent year occurred with the distribution given in the accompanying table. The listed percentages are based on a total of 1,424,287 cases of violent crime. Use a 0.01 significance level to test the ...

*December 16, 2012*

**ENGLISH II HEEELPPPP**

Is this sentence a parallel, if so how can you write it mor simpler? Fire can be friendly or a foe, depending on the situation.

*December 11, 2012*

**chemistry**

How many osmoles are there in 6.00 ML of a 6.0 N mg3(po4)2 solution?

*December 5, 2012*

**Algebra**

The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 975 kPa(kiloPascals) when the number of moles is 4, the temperature is 250 K, and the volume is 320 cc, find the ...

*December 5, 2012*

**English-Help!!!!**

No I did not try scholar in google I forgot about it will try now I tried many been working on this for three weeks And I wouldn't be asking if I only tried one! Please don't assume and Thank you

*December 1, 2012*

**English-Help!!!!**

thanks I did that but was not very successful

*December 1, 2012*

**English-Help!**

Anyone? I can't write my paper without this info

*December 1, 2012*

**English**

Anyone read I am looking for the queen's dream in Aeschylus' Persians;what was interpreted as and the meaning of it

*December 1, 2012*

**math**

Lyle got paid to today. He used 1/2 of his check to pay bills. He spent 30% of what was left on new clothes, and going out to eat. while he was out, he gave $20 to a salvation army charity santa on the street corner. He put 3/4 of what was left into savings. He lent his friend...

*November 29, 2012*

**algebra**

Determine the principal that must be invested at 7% compounded monthly, so that $500,000 will be available for retirement in 49 years. Answer in units of dollars

*November 29, 2012*

**Physics**

No glass is perfectly transparent. Mainly because of reflections, about 92% of light passes through an average sheet of clear windowpane. The 8% loss is not noticed through a single sheet, but through several sheets it is apparent. How much light is transmitted by three sheets?

*November 28, 2012*

**English**

Has anyone have to write a paper on greek mythology and dreams?

*November 19, 2012*

**English Ms. Sue**

Although I am not Ms. Sue I agree with you, because saying that they HAD run and STILL does run for this track team. all the best

*November 19, 2012*

**Intermediate Algebra**

Start with this portrait side 1=x portrait side 2=x+2 frame=2 in

*November 19, 2012*

**Intermediate Algebra**

You have been requested to display your family portrait in the lobby of the new Hampton inn in west Jordan it portrait measures x inches one side. and the other side is 2" longer than the other. the frame that surrounds the portraits is 2 inches wide. You are planning on...

*November 19, 2012*

**Intermediate Algebra**

A model rocket is launched from a height of 50 feet. the formula: h=-16t^2+70t+50 describes the rocket's height,h,in feet t seconds after it was launched. how long will it take the rocket to reach the ground.

*November 19, 2012*

**Math**

65/7= what? than have a remainder of what?

*November 19, 2012*

**Intermediate Algebra**

your house sits on a rectangular lot that has a perimeter of 320 feet. you want to fence the two sides and the back of your lot. your neighbor on the back end wants to have a concrete frence that costs $16 per foot. your side neighbors do not want such an expensive fence and ...

*November 19, 2012*

**Math**

is this the whole question because it does not seem to be sufficient information

*November 19, 2012*

**early childhood literacy**

I like D

*November 19, 2012*

**Chemistry**

When people have indigestion or "heartburn" they often take an antacid to reduce the amount of stomach acid (hydrochloric acid). Two antacids are Mylanta (magnesium hydroxide) and Titralac (calcium carbonate). Jimmy prefres to take Mylanta because Titralac makes him ...

*November 18, 2012*

**Chem**

If 19.0 of gas has a temperature of 320 and a pressure of 550 , what is its volume?

*November 9, 2012*

**Physics electric force, please help!**

It's B

*November 8, 2012*

**Physical Education**

Not Stacey because you're not supposed to touch the net.

*November 7, 2012*

**physics**

The radius is 20 m.

*November 6, 2012*

**7th grade math Ms. Sue please help I have no idea!**

Cut a piece of ribbon 6.18 m long into 6 equal pieces

*November 5, 2012*

**statistics**

In one town 76% of adults have health insurance, find the probability that 8 adults selected at random from the town all have health insurance. would it be unusual to select 8 people and find they all have health insurance. and why?

*November 4, 2012*

**calculus**

really stuck on these two, steps would be greatly appreciated. gotta find the derivative thanks! first one: f(t)=2^(log5t) the 5 is the base second one: y=(2(x^2) - 1)^5 /(√(x+1) for the second one you have to use logarithmic differentiation

*October 31, 2012*

**calculus**

woops, for the second one you have to use logarithmic differentiation

*October 31, 2012*

**calculus**

really stuck on these two, steps would be greatly appreciated. gotta find the derivative thanks! first one: f(t)=2^(log5t) the 5 is the base second one: y=(2(x^2) - 1)^5 /(√(x+1)

*October 31, 2012*

**ENGLISH II HELP PLEASE!!**

So it will have too be either-or facally ? Because I cant find an example for me too understand false analogy

*October 30, 2012*

**ENGLISH II HELP PLEASE!!**

I think its B. ad hominem

*October 30, 2012*

**ENGLISH II HELP PLEASE!!**

Which type of faulty logic does this sentence contain? Although the cheeseburger is the most sought-after item on our menu, it is really difficult to manage the crowd in the drive-up lane because of the high demand; so, the cheeseburger should be taken off the menu. A. ...

*October 30, 2012*

**ENGLISH II PLEASE HELP!**

Thank You

*October 30, 2012*

**ENGLISH II PLEASE HELP!**

Buy, sell, and trade on the Internet, and become a millionaire overnight! Which propaganda technique is used in this sentence? bandwagon glittering generalities faulty cause and effect snob appeal

*October 30, 2012*

**English II**

How does the author support her view that the lunch period at Mountain Vista High School should be extended? A. by explaining that many students are unable to eat lunch in the time left after waiting in long lines B. by citing research showing that students who don’t eat ...

*October 26, 2012*

**english**

My grandfather's favorite quotation is E.E. Cummings's, "The most wasted of all days is one without laughter." is this right or do I need to make changes

*October 26, 2012*

**Geology**

Anyone I need HELP with this ASAP!!!

*October 25, 2012*

**Geology**

How do I do the foll9owing example? K-40 - A-40 (1.25 billion years) After careful analysis, a geochronologist determines that an unweathered, unmetamorphosed mineral sample contains 7 trillion atoms of the radioactive element K-40 and 105 trillion atoms of its decay product A...

*October 25, 2012*

**Chemistry**

Use the balanced equation to answer the following: 3AgNO3(aq) + FeCl3(aq)...Fe(NO3)3(aq) + 3AgCl(s) If 21.73g of FeCl3 is mixed with 48.97g of AgNO3 a) Which is the limiting reagent? b) How many grams of AgCl can be theoretically produced? c) If 15.97g of AgCl was collected, ...

*October 21, 2012*

**Chemistry**

A reaction of magnesium with nickel (iii) chloride will produce magnesium chloride and nickel. Using 31.76g of magnesium would produce how many grams of nickel?

*October 21, 2012*

**5th grade math**

i do not know ask my friend adititi

*October 21, 2012*

**Geography!!!!!!!!!!!!!!!!!!!!!!!!**

1) What is the difference between folding and faulting? 2) What is the difference between intrusive vulcanicity and extrusive vulcanicity?

*October 21, 2012*

**math**

in a rectangular with a perimeter of 30 inches two parallel and equally spaced creases are made the cardboard is then folded to make a triangular prism with open ends that are equilateral triangles you will maximize the volume how do i solve this?

*October 18, 2012*

**math**

put these numbers in order from smallest to larest. 0.6 0.06 0.43 0.9

*October 17, 2012*

**math foundation 2 semester 1**

As she swims around, looking for the fish, she swims for 12 minutes, and rises upward by 15 meters. What is her final depth at the end of the 12 minutes?

*October 16, 2012*

**Chemistry**

What mass of natural gas (CH4) must you burn to emit 263kJ of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ

*October 15, 2012*

**Biology!!!!!**

7)State whether the following sentences are true or false. Rewrite them if they are false. a) Every chemical reaction taking place in cells is regulated by a specific enzyme. b) Enzymes work inside cells only. c) Enzymes are carbohydates d) An active site is the part of the ...

*October 14, 2012*

**Math**

Movies A survey of 350 customers was taken at Regal Cinemas in Austin, Texas, regarding the type of movies customers liked. The following information was determined. 196 liked dramas. 153 liked comedies. 88 liked science fiction. 59 liked dramas and comedies. ...

*October 9, 2012*

**physics**

A rock climber stands on top of a 56m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0s apart and observes that they cause a single splash. The initial speed of the first stone was 2.5(m/s) How long after the release of the first stone does...

*October 2, 2012*

**Biology!!!!!!!!!!!!!!!!**

In preparing some blood for observation with a microscope, a student puts a drop of blood into a test tube containing 2 cm3 of water. After mixing, he examines a drop of the mixture. Explain why he cannot see any blood cells under the microscope.

*October 2, 2012*

**math - integers**

The sum of 25 consecutive integers is 1000. What is the smallest integer used as an addendum?

*October 1, 2012*

**College Physics**

a 5.63kg ball hangs from a vertical pole by a 2.4 long string. Assume the ball is moving at 4.33m/s in a horizontal circle with the string remaining taut. Calculate the angle that the string makes with the pole.

*October 1, 2012*

**Biochem**

i don't know

*September 30, 2012*