Questions Asked on
June 4, 2016

mathematics
Cand D are two observation posts on the same horizontal ground at the foot A of a vertical tower AB.the tower is 18m due north of D and 24m east of C.the angle of elevation of B from D is 35¡ã.calculate to three s.f the height AB,distance CD,angle of
asked by jenny 
PHYSICS
Explain the statement the capacitance of a capacitor is 5microfarads
asked by KENNEDY 
chemistry
aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide a. balance the chem eqn for this rxn Al2S3+6H2O = 2Al(OH)3+3H2S b.how many g of water are needed in the rxn to produce al(oh)3? what is the formula i use here?? c. how many
asked by shi 
Math(Revised)
Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be
asked by Cameron 
Vocabulary
My sister thinks she is psychic. She says she has ESPN. A. Irony B. Onomatopoeia C. Pun D. Malapropism D?
asked by Ms. Sue Please help me 
math
a plane flies northwards for 430km.if the plane flies eastward for 380km.how far is it from its starting point(ignore its height above the ground)
asked by adebisi adewumi j 
maths
A rectangular tank weighs 310kg,when it is half full of water and 450kg ,when it is three quarter full of water.What is the weight of the empty tank?
asked by Olubunmi 
Urgent! PreCal
A wheelchair ramp with a length of 122 inches(top of ramp) and has a horizontal distance of 120 inches(bottom of ramp): a) what is the ramp's vertical distance(x)? b)Construction laws are very specific when it comes to ramps. Each vertical rise of 1 inch
asked by Dom 
gen chem
A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how many atoms of hydrogen does it contain? mole of H= 6.02x10^23/2.03x10^21? i don't know if my formula is right and i also don't know where to get the mole of H. please help me understand
asked by she 
Statistics
We investigate if a period of time feels longer or shorter when people are bored compared to when they are not bored. Using independent samples, we obtain these estimates of the time period (in minutes):
asked by Kassi 
Vocabulary
In order to change the meaning of the word teach from "to give instruction" to "to give instruction with" you would add the prefix: A. ed B. pre C. er D. co D?
asked by Ms. Sue Please help me 
Vocabulary
Which of the following suffixes means “bearing or producing”? A. oferous B. oid C. fic D. osis C?
asked by Ms. Sue Please help me 
Vocabulary
As I walked past the bakery, the sweet, rich aroma of pastries floated through the air and tickled my nose. A. Malapropism B. Antithesis C. Irony D. Imagery D?
asked by quick help needed 
Vocabulary
Criticism A. Analysis B. Summary C. Critique D. Argument A is wrong. Is it C? Please help me Ms.Sue cause your always correct. Am begging for help Please.
asked by Ms. Sue Please help me 
math
find the lenght of the longest straight line which can be drawn on a rectanglelar chalkboard which measure 2.2m by 1.2m
asked by adebisi adewumi j 
psychology
When considering evidence of validity and associated social consequences of instruments counselors should consider all of the following except for:
asked by jesusa 
Vocabulary
My teacher talked for an hour about the uselessness of long speeches. A. Idiom B. Simile C. Irony D. Metaphor D?
asked by quick help needed 
Vocabulary
My dad always says, “Time is money”. A. Metaphor B. Irony C. Idiom D. Pun C is wrong and a bit sure its A.Is that correct?
asked by Ms. Sue Please help me 
Vocabulary
She worked really hard on the project. The suffix ed in the italicized word in the sentence above illustrates that the work happened in the ______ tense. A. past B. pastperfect C. future D. futureperfect B is wrong. Is it A?
asked by Ms. Sue Please help me 
physics
A 0.02kg bullet is fired at a 3.5kg block which is initially at rest on a table. The bullet embeds in the block. Friction converts the 24.02J of kinetic energy to heat and brings the block and bullet system to stop. How fast was the bullet and block system
asked by ChrismB 
Social Studies(I need websites to do these please)
In 1965, Congress adopted the Voting Rights Act. Describe this act. In your description, explain what led Congress to pass the act, and describe at least two of the act's effects. How has the population of South Carolina changed over the past one hundred
asked by Mame 
Math(Please Help Assignment Due Today)
Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.
asked by Shayla 
Science
The HaberBosch process, devised in the early 20th century, revolutionized global industry. It provides a way of “fixing” atmospheric nitrogen into ammonia, allowing for the production of fertilizers and the many nitrogenbased chemicals we use today.
asked by John Lee 
Physics
This is a theoretical question, ignore the numbers. A 205kg log is pulled up and to the right on a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0 degrees with respect to the horizontal. The coefficient of
asked by Anonymous 
Science
A machine has velocity ratio of 5 and is 60% efficient. What effort would be needed to lift a load of 200N with tge aid of this machine?
asked by Selasi 
science
Three equalsized pans containing distilled (pure water),ocean water (3 percent salt),and water from the Great Salt Lake in Utah (about 20 percent salt)are placed in freezer. Which of the following would be the order in which these three liquids would
asked by kizzi 
science
A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When the train arrives in Madison the conductor notices it actually took them 3.26 hours. The train company prides itself on always having its trains to
asked by Janet 
Chemistry
How many ammonia liters of ammonia gas are produced when 85 grams of liquid nitrogen completely react? N2 + 3H2 = 2NH3
asked by Macario 
Vocabulary
He is such a good singer. His talent is unparalyzed by any other. A. Antithesis B. Alliteration C. Personification D. Malapropism D?
asked by quick help needed 
maths
f(x)equals to 2x is in form of y equals to ax or y equals to af(x) (if f(x)equals to x) plot f(x) equals to 2x
asked by Nontobeko 
biology
what is the habitat,observable features,economic importance,scientific name,behavioural adaptation,mode of feeding and other necessary details of a cricket.
asked by C A C WORLDWIDE 
Math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816  1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
asked by Sue 
social studies
How did Congress respond to the black codes passed in many Southern states after the Civil War? (1 point)by taking away the voting rights of southerners by sanctioning the remaining Democrats in Congress by impeaching the president by expanding the power
asked by erik 
Math
A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816  1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.
asked by Mike 
Political science
what does realism explain best and what does it miss? what does liberalism explain best and what does it miss? what does radicalism best explain and what does it miss? what does Constructivism best explain and what does it miss?
asked by Kammy 
geometry
The point A(8, 6) is translated using T: (x,y) → (x + 5. y  4).
asked by m 
physics
A ball of mass 0.1 kg, initially at rest, is dropped from height of 1 m. Ball hits the ground and bounces off the ground. Upon impact with the ground, its velocity reduces by 20%. The height (in m) to which the ball will rise is:
asked by Gulab 
math
To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters
asked by mike 
Social Studies (Please read this)
Please just make sure that my information is right and it is grammatically correct. Thank you! In 1965, Congress adopted the Voting Rights Act. Describe this act. In our description, explain what led Congress to pass the act, and describe at least two of
asked by Mame 
Math
Two boats leave the same place at the same time. The first sails in a straight line N70°W at 45 miles per hour and the second goes in a straight line S23°E at 57 miles per hour. After 1 hour, how far apart are the boats, to the nearest tenth of a mile?
asked by John 
Physics
A man with a mass(mm) of 71.9 kg stands up in a 95kg canoe(mc) of length(l) 4.00 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and
asked by Madison 
Someone please help
How has the population of South Carolina changed over the past one hundred years? Explain whether the state has become more rural or more urban, and describe at least three challenges that accompany this shift in population. All I know is that South
asked by Mame 
Social Studies (Please check these)
What title best represents the subject of the cartoon? The title is Inch by Inch picture is of a huge door with tiny children trying to push it open a. "Change Is a Long, Slow Process" b. "Education Opens the Door to the Minds" c. "Students Take Early
asked by Mame 
math
To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters Not sure how to
asked by mike 
Vocabulary
A poem that is told in an actual manner. A. Lyrics B. Ballard C. Sonnet D. Genre D?
asked by Ms. Sue Please help me 
Earth Science
Why are boats more efficient than airplanes? They use less fossil fuels to move
asked by mike 
English
How to write a debate for the motion boys should not help in the kitchen
asked by Godwin 
Science
Why are boats more efficient than airplanes? They use less fossil fuels to move
asked by David 
christian religous knowledge
who was the king that was removed from the throne by a hook in the bible
asked by CAC WORLD WIDE 
Algebra
x/x4  4/x5= 4/x^9x +20
asked by liliy 
Art
what training is required to be an art teacher? how long dose the training normally take?
asked by AnimeLovelyLover 
Vocabulary
Which of the following suffixes means “the study of”? A. eer/or/er B. oferous C. ology D. acious C?
asked by Ms. Sue Please help me 
Algebra
2x/x5 + 1/x1=0
asked by liliy 
Chemistry
One of the issues caused by acid rain is the lowering of pH of small lakes, which leads to the death of numerous aquatic fish and plant species. Calcium oxide, commonly known as lime, is frequently used to temporarily remediate lakes that have been
asked by John Lee 
ENGLISH
Prewriting: Choosing Your Topic Use the chart below to take notes on two literary works that you have found while browsing. These two works should have enough similarities to make connections between them and to draw comparisons. Story Author Plot
asked by I NEED HELP FAST PLEASE!!!!! 
science
Find the angle of friction when rod starts sliding
asked by anu 
physics
What is the formula to calculate the height of fluid in cylinder if the volume of fluid is known, and the length and diameter of cylinder is known? Kindly help please!
asked by ChrismB 
Algebra
My assignment was for each polynomial topic is to give an "example and written description." What would be an "example" and "written description" of a CONNECTION TO A QUADRATIC FUNCTIONS.
asked by Kimmy 
math
Find out which of these are pythagorean tripple.a(20,21,29)b(15,22,27)c(28,45,53)d(12,16,20)e(30,40,50)with workings.
asked by adebisi adewumi j 
Math
Hey there, just need help with these two. I need someone to help explain them to me/break them down. 1. gr 1/100=_____mg Answer: 0.6 2. 0.3mg= gr_____ Answer: 1/200 3. gr iii /ss= ______mg Answer: 210 Thank you in advance!
asked by Anonymous 
English
1. Watching the shining bridge from the beach is wonderful. 2. Watching the shining bridge at the beach is wonderful. 3. Watching the shining bridge on the beach is wonderful.  Which preposition is suitable? Can we use all the
asked by rfvv 
Chemistry
7. For the equilibrium system below, which of the following would increase the concentration of 𝐻2𝑂(𝑔)? 𝐶(𝑠) + 𝐻2𝑂(𝑔) + 131𝑘𝐽 ↔ 𝐶𝑂(𝑔) + 𝐻2(𝑔) a. Increased temperature b. Decreased pressure c. Decreased [CO] d.
asked by Urgent 
Chemistry
For the equilibrium system below, which of the following would decrease the concentration of 𝑃𝐶𝑙3(𝑔)? 𝑃𝐶𝑙3(𝑔) + 𝐶𝑙2(𝑔) ↔ 𝑃𝐶𝑙5(𝑔) + 45𝑘𝐽 a. Increased temperature b. Decreased pressure c. Increased
asked by Help:( 
MathCalc
f(r)=r/(10r^2+7) find the critical numbers. I found the derivative to be 10r^2+7/(10r^2+7)^2 and now I am stuck. What do I do next?
asked by Anonymous 
science
which of the following would be a disadvantage of boiling food in salted water rather than using pure water? 1 A only 2 B only 3 C only 4 D only 5 A and D only B ONLY is the answer?!
asked by kizzi 
physics
what is the frequency of unknown fork if 8 beats in 8 seconds are heard with each fork
asked by john 
Math
Use 18 coins to make $1.75 I NEED LOTS OF HELP IM JUST IN FOURTH GRADE AND MY TEACHER NEVER TAUGHT ME THIS MY TEACHER IS MRS MCABE
asked by Isabella 
mathematics
express 1/2 + 3/y1 as a single fraction
asked by dodo 
math
car gets 19 miles to the gal at let's say $3 per gal, taking an 8.5mi trip. How much does this trip cost?
asked by Lee 
chemistry
In assessing 20.0ml of NaOH 0.175M , calculate how many ml of 0.200M HCl must be added to obtain a pH of 12.55
asked by marco 
math
32foot ladder at a 70degree angle. How high is top of ladder
asked by Anonymous 
science
could you use potassium nitrate to test for fluoride in mouth rinse? Is potassium nitrate a water soluble.?
asked by Janet 
Spanish
Escribe los pronombres que deben estar en los espacios. Juan compra flores a su abuela. Juan __ __ compra.
asked by Nina 
Math
Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be
asked by Cameron 
Vocabulary
Criticism A. Analysis B. Summary C. Critique D. Argument A is wrong so is D correct?
asked by quick help needed 
Vocabulary
A poem that is told in an actual manner. A. Lyrics B. Ballard C. Sonnet D. Genre C is wrong so is A correct?
asked by quick help needed 
math
A tank is 5/7 full, when 440 litres are removed it goes to 2/5. How much litres does it contain in full capacity
asked by Vicky 
science
the brains of left handers may be more sensitive to drugs, says a Swiss researcher, that may be why more people are right handed. Peter Irwin of the chemical firm Sandoz limited, in Basel, gave 88 subjects 12 different drugs, the used electroencephalograms
asked by kizzi 
Physics
A ball is thrown vertically upward from the edge of a bridge 29.0 m high with an initial speed of 20.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.
asked by Neal parikh 
Physics
A pitcher throws horizontally a fast ball at 156 km/h toward the home plate, which is 18.2 m away. Neglecting air resistance (not a good idea if you are the batter), find how far the ball drops because of gravity by the time it reaches the home plate.
asked by Neal parikh 
Physics
An arrow has an initial launch speed of 39 m/s. If it must strike a target 39 m away at the same elevation, what should be the projection angle?(Hint: sin2θ = 2sinθcosθ)
asked by Neal parikh 
Vocabulary
When someone needs help, I try to lend a hand. A. Alliteration B. Antithesis C. Idiom D. Imagery C?
asked by quick help needed 
physics
A car is travelling at 20m/s along a road. A child runs out into the road 50m ahead and the car driver steps on the brake pedal. What must the car's declerations be if the car is to slop just before it reaches the child .
asked by sumit 
Science
I've been asking questions and all you so called "helpers" (such as Reed, Writeacher, etc.) you are all being sarcastic. I have no interests to cheat, but you don't listen to my side notes. I am going to ask one more question, and again, be don't be
asked by FYH 
physics
A marine siren consists of a cylinder 72 cm in length closed at one end.for sound through air at 336 m/s. find the lowest frequency of the siren
asked by omar 
Math
Calculate the perimeter of the triangle formed by the middle points of the sides of the triangle formed by points A(8,6) B (2,5) and C (1,7) I've already got the distance between all the points given but I do not know what to do next. Can you help me?
asked by Julius