Questions Asked on
March 12, 2017

Math / Physics
A block P of mass 3.56 kg is lying on a rough inclined plane of angle θ = 0.73 radians. Block P is attached via a model string that passes over a model pulley to a second block Q of unknown mass M kg hanging vertically as shown in diagram. The coefficient
asked by SL 
Science
Find molecular mass of an element having Density= 1.56 gm/l Temp.= 65 degree Celsius Press.= 745mm
asked by Anushka 
Algebra
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 lightyears from Earth. In scientific notation, approximately how many
asked by Evelyn 
Math
A uniform beam AB of mass 84.78 kg rest against the smooth wall at A and the rough horizontal floor at B. The coefficient of static friction between the beam and the horizontal floor is U=0.249. Calculate the magnitude of the horizontal force P, in N, such
asked by Mike Lian 
science
why does the load reaches 50 meters from the ground will the correct position of the PE and KE that the problem isa crane lifted a 1000 kg load to a height of 50 meters from the ground. at which position are the PE and KE of the load equal
asked by renalyn 
physics
A cricket ball travelling north at 100km/h is deflected so that it travels northeast at 100km/h. What is the change in velocity of the cricket ball?
asked by Xy 
physics
A cricket ball travelling north at 100km/h is deflected so that it travels northeast at 100km/h. What is the change in velocity of the cricket ball?
asked by Xy 
english
are these thesis good? 1) Cell phones are becoming increasingly popular and are in use almost anywhere one goes. 2) Now a day computers are so valuable and accessible that you can find them almost anywhere such as schools, offices and public places. 3)
asked by elean 
physics
why does water show abnormal behaviour?
asked by Anonymous 
calculus
A circular swimming pool has a diameter of 20 meters, the sides are 3 meters high, and the depth of the water is 2.5 meters. The acceleration due to gravity is 9.8 m/s2 and the density of water is 1000 kg/m3. How much work is required to: (a) pump all of
asked by maggie 
calculus
Find the centroid (¯ x, ¯ y) of the region bounded by: y = 6x^2+7x, y = 0, x = 0, and x = 7
asked by maggie 
Chemistry
Determine the Enthalpy of combustion of ethyne (C2H2) using the following enthalpies of formation; Data: DHf°(H2O)= 285.9kj/mol DHf°(2H2)= +226.7Kj/mol DHf°(CO2)= 393.5Kj/mol Equation; C2H2>CO2 + H2O
asked by Steve 
math
Which of the following fractions is in its simplest form? 16/4 7/8 100/35 3/27
asked by mpendulo 
English
All things considered, it seems reasonable to accept that injecting a small dosage of drugs in animals as it could help and improve of find cures for the help
asked by Sarah 
Math
Building A is 40m high.The angle of depression of the top of Building B from the top of A is 26 degrees.if the two buildings are 10m apart,find the height of building B
asked by Deborah 
Algebra
If x=16 is one of the root of the quadratic equation x square2(7x+16)=0,find the other root.
asked by Mandar 
math
A trader has shs 250,000,he buys boxes of books at shs 25000 each and boxes of candles at shs 10,000 each,the money spent on books is atleast shs50000 morethan that spent on candles,he buys atleast 5boxes of books and atleast 7boxes of candles.Write down 4
asked by Deborah 
English
All things considered, it seems reasonable that injecting a small dosage of drugs in animals is acceptable. This practice could help to find cures for the illnesses as well as animals. Having said that people are not acknowledging the positive results of
asked by Sarah 
Physics
the speed of a train increases from 15 mi/h in a distance of 500 ft. calculate the average acceleration in ft/s squared
asked by Amel 
Economics
A firm in a perfectly competitive market has the following cost function: c=1/3q35q2+30q+10 in the market clearing price is 6, obtain the profit maximising level of output?
asked by Karthik 
chemistry
Water, compared to other substances, has one of the highest specific heat values. What is the advantage of this fact for the human body? Thank you ☺
asked by Gennelle 
Chemistry
The specific heat of a copper metal is 0.385J/g°K. How many kJ of heat are needed to raise the temperatue of 1.1 kg block of copper from 27.5°C to 50°C? Thank you ☺
asked by Gennelle 
Chemistry
A 6.3 g sample of solid NH4NO3 is dissolved in 50g of water, causing the temperature to drop from 24°C to 19°C. Calculate the ∆Hsolution in J/mol. Thank you ☺
asked by Gennelle 
chemistry
how to prepare CO from this equation in the lab CaCo3 + 2HCl → CaCl2+H2O+ CO2 (g) Or CaCo3 (Heat 500 to 600 C0→ Cao +Co2 (g) 2 CO2 + H2 → CO (s) + H2O(g)
asked by roro 
english
Which of the following sentences from Zora Neale Hurston's "What White Publishers Won't Print" best supports the author's opinion that white Americans perceive educated African Americans as a threat? a. Man, like all the other animals fears and is repelled
asked by catie 
Life Orientation
How can you adevise a friend who responds to Avoidance and why it is not healthy in sustaining positive relationships
asked by Vukile 
Life orientation
Ways in which sport can support nation building?
asked by dineo 
Chemistry
Convert the information described below into balanced equation: (a) When a mixture of copper(II) oxide and carbon is heated, elemental copper forms and carbon monoxide evolves into the atmosphere. (b) When a concentrated solution of sodium hydroxide is
asked by Dan 
english
Read the excerpt from O. Henry's "The Gift of the Magi. " Which three sentences in this passage reflect traditional stereotypes of men and women? A. White fingers and nimble tore at the string and paper. B. And then an ecstatic scream of joy; and then,
asked by catie 
English
This might look funny and foolish but i seriously need answer.Can someone give the scientific definition of food?
asked by Anonymous 
Statistics
Childhood participation in sports, cultural groups, and youth groups appears to be related to improved selfesteem for adolescents (McGee, Williams, HowdenChapman, Martin, & Kawachi, 2006). In a representative study, a sample of n 5 100 adolescents with a
asked by Shannon 
Math
Sarah can afford $255 per month for 6 years on a car payment, what is the price of a car that she can afford at this time? Assume an annual interest rate of 8%. I do not remember how to solve for problems like this one.
asked by Maddie 
chemistry
what is the method to prepartion CO from these equation in the lab CaCo3 + 2HCl → CaCl2+H2O+ CO2 (g) Or CaCo3 (Heat 500 to 600 C0→ Cao +Co2 (g) 2 CO2 + H2 → CO (s) + H2O(g) i have CaCo3 powder and i do not have any idea how to work in lab???
asked by roro 
Math (Sinking fund)
Kenny opened a sinking fund account and hopes to accumulate $16,000 in 25 months. The yearly interest rate is 7.8%. How much should he invest per month to reach his goal? Would the answer be 591.58?
asked by Kerry 
Maths
Find the ratio of 5 days to 20 hours
asked by Jumana 
Maths
Find the ratio of 200ml to 8litres
asked by Jumana 
Social Studies
which of the following was an effect of nativism in the United States in the 1920s? A. the Great Migration** B. the Scopes Trial C. the Jones Act of 1917 D. the quota system
asked by Kylita335 
math
A tower casts a shadow of 16m at the same time that a 2.5m post cast a shadow of 4m. How high is the tower?
asked by marjorie 
Writing
Anyone who knows a good source on how to write a project proposal?
asked by Jane 
English 11
Can you send me a good reference about how to create a project proposal for a middle school stude like me? Thanks a lot.
asked by Jane 
Social Studies
why did president Roosevelt begin the Good Neighbor Policy? A. He hoped to discourage B. He believed it would end the Depression C. He knew it would be highly popular in the United States D. He wanted to strengthen relations with Latin America in a time of
asked by Kylita335 
math
The ratio of corresponding sides of two similar triangles is 2:3 ,if the longer side is 5cm ,calculate the length of the shorter side
asked by sharron 
Physics
Six points masses each of mass m are placed at the vertices of regular hexagonal of side l , the forces acting on any of the masses is?
asked by Brijender 
Math
(−5)∙(3b−2a)−6(a+2b)
asked by Jamie 
english
Which literary device is used in this poem? For a Lady I Know by Countee Cullen She even thinks that up in heaven Her class lies late and snores While poor black cherubs rise at seven To do celestial chores. a. onomatopoeia b. repetition c. hyperbole d.
asked by marie 
math
the ratio of corresponding sides of two similar triangles is 2:3 ,if the longer side is 5cm ,calculate the length of the shorter side
asked by Sharron.b 
URGENT
Four consecutive integer numbers add to 2. What are the numbers?
asked by Anonymous 
Please Help
(−6)∙(a+2b−3c−4d)−(−2)∙(−4a−3b+2c+d)
asked by Jamie 
Mathematics
Using a pair of compasses, a ruler and a pencil, construct a triangle CDE in which DE =10cm, DC= 8cm and angle DE= 45 degree
asked by Zoey 
chemistry
Calculate the amount of silver deposited at cathod when 5 ampere of current is passed for 50 minutes through a solution of AgNO3
asked by ali 
geometry
Given: LM  KN , KL  NM , LP = h1 = 5 cm, MQ = h2 = 6 cm, PKLMN = 42 cm Find: Area of KLMN.
asked by Crazy101 
Physics
A solid weighs 4.8g in air, 2.8g in water and 3.2g in kerosene. Calculate the ratio of the density of the solid to that of kerosene
asked by Patience 
english
Help!!!!! What does the Quote "In winter I plot and plan, In spring I move" mean.
asked by Erika 
Chemistry
Human blood contains glucose at a typical concentration of 0.100% (W/V). At this concentration, how many grams of glucose would be found in one liter of human blood?
asked by Tammy 
Maths
Nine Bottles Hold 4.5 litres of water altogether? how many will 5 bottles hold?
asked by Erica 
Physics
An antiaircraft gun fires at an elevation of 60 degree at an enemy aircraft at 10000m above the ground. At what speed must the cannon be shot to hit the plane at that height? (g=9.8)
asked by James 
4th grade math
1. After saving up for while, Melanie saved $12 of her allowance. She decided to spend 1/3 of that money at the book fair. the book she wanted was $5. Did she bring enough money to buy the $5 book. Draw a model to justify your answer. Answer  12 x 1/3 =
asked by Jared 
english
is this thesis good? 1) Cell phones are becoming increasingly popular and are in use almost anywhere one goes. Thank you.
asked by elean 
Business math
No payments were made on a $3500 loan during its threeyear term. What was the annually compounded nominal interest rate on the loan if the amount owed at the end of the term was $4298.73? (Round your answer to two decimal places.)
asked by Gagandeep Kaur 
Maths
Point P in the curve y=x^3 has coordinates (3,27) and PQ is the tangent to the curve at P.Point Q touches the xaxis.Find the area of the region enclosed between the curve, PQ and the xaxis. My answer: I used differenttiation to find the gradient of the
asked by Debora 
Math
Joan is 15 years older than her brother Bill.Eight years from now,Joan will be twice as old as Bill.How old is each at this time?
asked by Maleka 
Chemistry
If 50.00 mL of 0.250 M barium nitrate are combined with 50.00 mL of 0.400 M sodium sulfate, how any grams of precipitate will form? I'd really appreciate it if someone could walk me through this problem. I don't want the answer, I just want to have a hint
asked by Matthew 
Math
For traffic that flows on a highway, the headway is the average time between vehicles. On fourlane highways, the probability P (as a decimal) that the headway is at least t seconds when there are 500 vehicles per hour traveling one way is given is P =
asked by Adam 
English
Posted by rfvv on Saturday, March 11, 2017 at 6:51am. What is the part of speech of "for my birthday" in each sentence? An adverb phrase or an adjective phrase? Would you check them, please? Can a phrase be either an adjective phrase or an adverbial
asked by rfvv 
Math
When wrapping a birthday gift in the shape of a rectangular prism for his mother, Kenji adds an additional 2.5 square feet of gift wrap to allow for overlap.How many square feet of gift wrap will Kenji use to wrap a gift 3.5 feet long, 18 inches wide, and
asked by Thomas 
English
1. She looked at the person on the table.(When the person is on the table, 'on the table' is an adjective phrase.) 2. She looked at the person on the table.(When she is on the table, 'on the table' is an adverbial phrase.) (How can we distinguish the two
asked by rfvv 
Math
The two stadiums with the largest capacities are Marshfield Stadium and Bowden Stadium. The capacity of Marshfield Stadium exceeds that of Bowden by 7,341 people. Combined, the two stadiums have a capacity of 210,355 people. Find the capacity of each
asked by Tim 
MATH
Vail Ski Shop received a $1,201 invoice dated July 8 with 2/10, 1/15, n/60 terms. On July 22, Vail sent a $485 partial payment. (If more than one discount, assume date of last discount) a. What credit should Vail receive? Credit $ b. What is Vail’s
asked by AMBER 
Advanced Functions
PLEASE READ THE BOTTOM I ADDED ON!! :) the ferris wheel at an amusement park measures 16m in diameter. the wheel does 3 rotations every minute. the bottom of the wheel is 1m above the ground... a) determine the simplest equation that models Megan's height
asked by Lily 
Algebra2
What are the vertices, foci, and asymptotes of the hyperbola with the equation 16x^24y^2=64? What would the formulas be to find the answers?
asked by steve 
Math
each block in Toms neighborhood is twothirds of a mile long. if he walks four and a half blocks how far does he walk.
asked by Malak 
quick question
Are muscials considered plays?
asked by Sandy 
Math
Emily walk that a rate of 3 1/2 miles per hour for one and a 1 1/3 hours how far did she walk.
asked by Emma 
chemistry
When a 8.45mg sample of a compound containing carbon is burned completely, 18.1 mg of carbon dioxide is produced. What is the mass percentage of carbon in the compound?
asked by kai 
english
Which four lines in this excerpt from Stephen Crane’s “An Episode of War” show that there were poor medical facilities during the Civil War, and the injured were not properly tended to in the field hospital? a. The drivers were tossing the blame of
asked by marie 
Math
The manager of a store orders canoes that cost $400 and sells them for 828. what percentage is the markup?
asked by Ana 
English, Language arts
So often Attean made him feel uncomfortable and ridiculous. But he had to admit that on the days when Attean did not come the hours went by slowly Ths is a line from the book. Is this irony?
asked by apple 
Math
The temperature increased 2° per hour. If the temperature rose 15°, how many hours had the temperature been rising?
asked by Nikko 
Physics
A 0.145 kg baseball is thrown at a launch angle of 30° and strikes the ground at 18 m/s. How fast would it be moving when it reaches the ground if it's launch angle were 45°? Ignore air resistance. A. 340 m/s B. 210 m/s C. 16 m/s D. 18 m/s
asked by Mm 
Math
Solve for the missing variable. 4^x =2 Example: 3^2n+1 = 3^4 Cross out both the threes 2n+1 =4 Subtract 1 2n=3 n=3/2
asked by Aria 
english
Which two elements define a story’s setting? a. geographical location b. character descriptions c. time and weather conditions d. plot structure e. dialogue and action The setting is the time and place definitely A and c? never thought about weather
asked by marie 
Math
True or false. Explain why 4^x/4 = 1^x 100(1.06)^x = 106^x
asked by Pam 
Social Studies
A person described as a nativist would most likely support what??
asked by Lin 
Math
Mr. Kwon has just enough money to buy only 20 mangoes or only 30 oranges. If he wants to buy equal numbers of mangoes and oranges together, how many of each type can he buy with the money?
asked by Sara 
Math
Mr. Dinkelspiel bought $32.56 worth of stamps. He bought 20 more 19cent stamps than 50cent stamps. He bought twice as many 32cent stamps as 19 cent stamps. How many of each kind did he buy?
asked by Sara 
Music
1. How is the survival of indigenous music and culture related to the challenges of modernization and environmental degradation?
asked by Katrina 
math
Graph the equation y = 1 + 2 sin x. This curve crosses the xaxis in several places. Identify all the xintercepts with 0 < x < 360.
asked by grace 
Physics
The figure is just mass A on top of mass B. There are no forces or anything shown. Block A, of mass 3.2 kg, is on block B, of mass 7 kg, as shown in the above figure. The lower block is on a frictionless surface while the coefficient of static friction is
asked by Ana 
Social Studies
Ancient China irrigation 1. Find out the following information: a. When, where, and why did it develop? b. How was it used or practiced? c. Whom did it affect? d. What was the lasting impact this innovation had on China and its people? e. What are some
asked by Help I need somebody not just anybody 
ENGLISH
It was a rainy day, but Joan and I had planned a trip. Joan wanted to go to the beach for a swim. I wasn't sure if we should go. "I think we should wait a little longer... at least until the rain shows some signs of slowing down," I suggested. "We can't
asked by marie 
Sciencetectonic plates
What occurrence is caused when transform plates get stuck?
asked by Nikko 
Politics
Whats is an example of a change in political relations between powers that was in part the result of a change in discourse?
asked by Karina 
Science  Plate Tectonics
Where does the source of heat for Earth’s convection currents come from
asked by Jasmine 
Statistics
One hundred students took a statistics exam where the mean score was 78. The distribution was normal. The standard deviation was 4. If Chris earned an 80 on the exam, at approximately what percentile did his grade fall? (Round your answer to the nearest
asked by ShaQuana Mitchell 
English
In this excerpt from A Christmas Carol by Charles Dickens, what does Scrooge's reflection reveal about his character? And now Scrooge looked on more attentively than ever, when the master of the house, having his daughter leaning fondly on him, sat down
asked by marie 
Science
What is the difference between shortcircuiting and overloading? From what I can gather from my textbook, both happen as a result of external resistance being lesser than the sum of internal resistance.
asked by derrickL 
Math
Brian is baking cookies for Zachary's birthday party if an Bryan uses 1 1/4 cups of flour for every 10 cookies if Brian needs to make 50 cookies and he have 4 cups of flour how much more flower Brian need to finish baking
asked by Bryan 
College statistics SCWK450
One hundred students took a statistics exam where the mean score was 78. The distribution was normal. The standard deviation was 4. If Chris earned an 80 on the exam, at approximately what percentile did his grade fall? (Round your answer to the nearest
asked by ShaQuana Mitchell 
Tectonic Plates
How is continental drift different from plate tectonics theory? Mention 1 type of evidence for plate tectonics
asked by Max 
Geometry
Find the dimensions of a rectangular solid for which the sum of all the edges is 76, the total surface area is 206 square units, and the volume is 165 cubic units.
asked by Dodie 
Elastic CollisionsPhysics
A 0.16 kg billiard ball moving at 1.20 m/s collides elastically with one of the same mass at rest. It continues at a speed of 0.6 m/s afterward in a different direction from before. What is the final speed of the other billiard ball? I thought it was 0.6
asked by Mm 
Physics
One guideline for how diffraction affects shadows is that distinct shadows are created if the width of something is a minimum of 10 times greater than the wave’s wavelength. What would be the narrowest width of something to make a distinct shadow with
asked by Anonymous 
Math
Winnies friend marco guessed that her riddle was about the number 79 Why can't 79 be the answer to Winnies riddle
asked by Jamaya 
Social Studies
“As I traveled over Qin Mountain one morning, I met two fairies, of brightness and beauty, Riding on a white deer. I realized they were immortals, And kneeled and begged for the Dao. ‘Go west and climb the Jade Terrace, There are gold pavilions and
asked by Help I need somebody not just anybody 
Accounting
Jim Hurley is an accountant for a local manufacturing company. Jim’s good friend, Mike Kotowski, has been operating a retail sporting goods store for about a year. Mike has proposed that the fee he will pay for Jim’s accounting work should be
asked by Carla 
math
Number of different words that can be formed using all the letters of the word DEEPMALA if two vowels are together and the other two are also together but separated from the first two
asked by dharmapal 
Physics
Three resistance of 8,12, and 24 ohms are in parallel. This combination is in series with another parallel of 10,10, and 20 ohms. The whole combination is then connected to a battery of 16.6 volts. If the current through the 20 ohm resistor is 0.4 amperes.
asked by Mycah