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An airplane traveling at v = 163 m/s emits a sound of frequency 1730 Hz. At what frequency does a stationary listener hear the
1. 1 answer
2. 607 views
Assume that there is no friction between m2 and the incline, that m2 = 2.4 kg, m1 = 1.2 kg, the radius of the pulley is 0.10 m,
1. 0 answers
2. 529 views
Two sounds have measured intensities of I1 = 102 W/m2 and I2 = 408.00 W/m2. By how many decibels is the level of sound 1 lower
1. 1 answer
2. 482 views
Elephants communicate via infrasound, at frequencies as low as 14 Hz that can travel up to 10 km. The intensity of these sounds
1. 1 answer
2. 600 views
1. A balloonist drops an apple weighing 1.5 N over the side of the balloon's gondola. As it falls and increases speed, the drag
1. 1 answer
2. 585 views
1.A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at
1. 0 answers
2. 668 views
Janice thinks that 20 hundredths is equivalent to 2 thousandths because 20 hundreds is equal to 2 thousands. Use words and a
1. 8 answers
2. 2,204 views
If f(x)=x^2+2 then f(x+h)=???
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2. 1,598 views
If a ball is thrown directly upward with a velocity of 14 m/s, its height (in meters) after t seconds is given by y = 14t −
1. 1 answer
2. 4,684 views
Two kids are building a rocket for science class. once the rocket is launched its height in feet, h(t) can be found using the
1. 5 answers
2. 937 views
Help please?1)A sample of propane gas occupies 625 cm3 at 20.0 °C and 750 torr. What is the final volume in cubic centimeters
1. 6 answers
2. 2,205 views
If 1.50mol of oxygen gas exerts a pressure of 1500mmHg at 20∘C, what is the volume in liters?
1. 3 answers
2. 798 views
A shirt is on sale for 40% off. The sale price is $12. What was the original price? What was the amount of the discount?
1. 3 answers
2. 2,247 views
Nikki made 2 gallons of punch withfruit juice and ginger ale. The recipe requires 1 gallons of ginger ale. What percent of the
1. 5 answers
2. 1,319 views
a kitchen is shaped like a rectangle with dimensions of 11 1/2 ft. by 9 1/2 ft. the floor of the room is made of square tiles
1. 8 answers
2. 2,693 views
A boat can go 20 miles against a current in the same times that it can go 60 miles with the current. The current is 4 miles per
1. 1 answer
2. 622 views
22x+70=17x-95
1. 1 answer
2. 376 views
8x+2x=15x-10
1. 1 answer
2. 426 views
What i the story of the last butterfly ?
1. 3 answers
2. 1,074 views
Rachel spend $1.20 on her drink. She has now 1/3 of the amount of money that she had before she bought the drink. How much money
1. 1 answer
2. 1,184 views
Would the VSEPR notation of CH3Cl be AX4?
1. 1 answer
2. 564 views
When 306 stamps were shared among Pat, Kyle, and Ryan, Pat got twice as many stamps as what Kyle and Ryan got together. If Kyle
1. 1 answer
2. 570 views
A bookshop had 60 boxes of pencils. Each box contained 85 pencils. Half of the pencils were packed into packets of 25 pencils
1. 0 answers
2. 555 views
Peter has twice many stickers as Ali. Ali has 40 more stickers than Carlos. They have 300 stickers altogether. How many stickers
1. 3 answers
2. 1,958 views
A fruit seller has an equal number of apples and oranges.He sold 109 oranges and 45 apples.The number of apples left is 5 times
1. 2 answers
2. 776 views
A fruit seller has an equal number of apples and oranges. He sold 109 oranges and 45 apples.The number of apples left is 5 times
1. 1 answer
2. 742 views
Determine the line through which the planes in each pair intersect.a) 3x+2y+5z=4 4x-3y+z=-1
1. 2 answers
2. 1,294 views
Both Todd and Zack earn the same salary. Todd spent $716 and Zack spent $128. Then Zack had 4 times the amount of money Todd had
1. 1 answer
2. 510 views
Fill in the missing sign to make the equation true.125 _ 5 _ 12 _ 2 = 1
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2. 493 views
Jenny,Bob and Paul share a sum of money. Jenny received 2/5 of the money, Bob received 1/4 of the money and Paul received the
1. 1 answer
2. 610 views
The weight of Meg's dog is 2 1/2 times more than that of her cat. If both animals weight 42 lbs, find the weight of each
1. 1 answer
2. 617 views
Most of the eastern United States and the West Coast have a climate that is-F)mountain H)desert G)polar J)temperate My answer is
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2. 797 views
Sandy walked to school this morning because it was nice and warm outside.When school let out, a cold front was moving through.
1. 1 answer
2. 579 views
Javier lives on the west coast of the U.S near San Francisco. What are the temperatures most likely like where he lives?A)the
1. 5 answers
2. 560 views
A buffer was prepared by dissolving 22.61g of NaCLO2 into 0.100L of 4.00M aqueous HCLO2. Calculate the pH of the original
1. 3 answers
2. 644 views
You decide to make a scale drawing of your bedroom. YOur bedroom measures 12 ft. wide by 20 ft. long. If you are using an 8.5" x
1. 1 answer
2. 618 views
What is the pH of a 0.350M HBrO Solution? HBrO, Ka=2.3 x 10^-9
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2. 1,138 views
what will cold air moving over a warm body of water create?A)a rain shadow affect B)lake effect snow C)an urban heat island
1. 1 answer
2. 534 views
David has 120 stamps. He gave 36 stamps to Maria and some to Alice. After that he had 5/8 of the stamps left. How many stamps
1. 1 answer
2. 499 views
Please solve. Use order of operations.320-(17+3)-5 = My answer is 323, am i right or not? if not please tell me your answer and
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2. 490 views
what does low pressure over land and high pressure over water form?A)a sea breeze C)global wind B)a land breeze D)a front My
1. 1 answer
2. 656 views
The Height of a ski jumper, 'h' in meters is given by the equation h=-4.9t^(2)+0.5vt+8 where 't' is measured in seconds after
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2. 671 views
Allison, Ashley, and Becky weigh 124 kg altogether. Allison and Becky weigh 102 kg altogether. Allison and Ashley weigh 86 kg
1. 1 answer
2. 452 views
Which of the following has the greatest effect on the formation of rain or snow?A)cloud cover C)air pressure B)humidity
1. 1 answer
2. 859 views
20.46 * 4 = 81.86Round the answer to 1 decimal place what is the answer? My answer is 81.8 if not please tell me why and how?
1. 2 answers
2. 561 views
If you could please help show me the steps so i can continue on with my assignment i would be very appreciative: Problem 9 - p/4
1. 1 answer
2. 433 views
Classical macroeconomics theory concludes that ultimatelyA. Fiscal policy generates only quantity effects B. erratic investment
1. 0 answers
2. 494 views
An increase in the amount of money circulating in the econmomy, ceterics pair bus will result in which of the followingA. Demand
1. 1 answer
2. 1,133 views
According to the aggregate expenditure function, as the price level decreases, it is reasonable to expect thatA the automonos
1. 0 answers
2. 405 views
Express 175.0cm3 in litres (dm3)
1. 3 answers
2. 405 views
How many cm3 are there in 1.0 litre?
1. 2 answers
2. 368 views
In Rosencrantz and Guildenstern are Dead, how do other characters define isolation (compared to Rosencrantz and Guildenstern)
1. 1 answer
2. 585 views
In Rosencrantz and Guildenstern are Dead, Guil and Ros constantly seem like outsiders in the play. Why are they so alienated
1. 1 answer
2. 567 views
Calculate the minimum number of moles of Pb(NO3)2 required to start precipitation in 50.0mL of 0.15M ZnI2
1. 5 answers
2. 2,845 views
Calculate the minimum number of moles of Pb(NO3)2 required to start precipitation in 50.0mL of 0.15M ZnI2
1. 1 answer
2. 614 views
y=x^2-3x-10, Find the y-intercept and any x-intercept
1. 1 answer
2. 366 views
Find the slope-intercept equation of the line that has the given characteristics.Slope 8.7 and y-intercept (0,-6)
1. 0 answers
2. 482 views
the length of a rectangle is x inches and its width is 4 inches more than two thirds of its length. What is the perimeter of the
1. 2 answers
2. 527 views
A rubber band of relaxed length 6.3 cm stretches to 10.2 cm under a force of 1.0 N, and to 16.5 cm under a force of 2.0 N. Does
1. 0 answers
2. 586 views
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. If we attach a horizontal rope to this crate
1. 1 answer
2. 620 views
I am looking for a novel that's set in the 1980--1999 in Zimbabwe. Any recommendation is appreciated.
1. 1 answer
2. 412 views
Suppose a cube that measures 0.020 m on each side were made of water. Find its volume, mass, and weight.
1. 1 answer
2. 477 views
200g of water (specific heat of 4.184 Jg-1'c-1) loses 2000 J of heat. Its starting temperature is 70'C. Calculate the
1. 3 answers
2. 565 views
Working on the Amazon River, a biologist isolated DNA from two unknown organisms, P and Q. He discovered that the adenine
1. 0 answers
2. 767 views
the time index t runs from a to A.if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per
1. 0 answers
2. 444 views
How do you find unpaired electrons in a metal ion in CuSO4·5H20?
1. 1 answer
2. 2,562 views
the time index t runs from a to A.if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per
1. 0 answers
2. 1,087 views
evaluate the following expression at z=5d/dz ¡Ò[z to 2] (3+x^2)dx
1. 0 answers
2. 314 views
A sample of 9.4 grams of NaOH is dissolved into 693 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then
1. 1 answer
2. 1,009 views
Please help by MondayExplain in words how you would prepare 250.0 mL of a 3.000 M solution of Ba(OH)2 starting from solid barium
1. 0 answers
2. 411 views
What is the density of an unknown spherical substance with mass of 30 g and radius of 0.35 inches in kg/m3? (density= mass/
1. 2 answers
2. 511 views
A patient needs at least 36 units of vitamin supplement A, at least 36 units of vitamin supplement B and at least 24 units of
1. 0 answers
2. 463 views
i saw this question from physics book, can someone please help me solve this.. thank you..A man pulls a 500 Newton block up a
1. 1 answer
2. 547 views
ok so your sister buys a pencil as .39 cents. And a notebook (1) for 1.19$. the total cost was 3.92$. how many pencils did she
1. 3 answers
2. 864 views
Suppose that you wanted to be sure that ametal ion, any metal ion, would dissolve in water. What salt of themetal ion compound
1. 3 answers
2. 1,038 views
A sample of 9.4 grams of NaOH is dissolved into 693 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then
1. 1 answer
2. 1,245 views
I cant Figure this out...Find each Unit Rate: Four pounds of apples cost $1.96 and Sal washed 5 cars in 50 mins
1. 1 answer
2. 605 views
You receive 80% on your first midterm while your friend receives 70%. Taking into consideration the fact that the first midterm
1. 1 answer
2. 655 views
demand function for kerosene: Kd=a0+a1Pksupply function for kerosene: Ks=b0+b1Pk+b2Pg demand function for gasoline:
1. 3 answers
2. 725 views
In the book Beloved by Toni Morrison, who or what is Beloved?(need at least 3 theories, suggestions, guesses, etc)
1. 1 answer
2. 567 views
1 teragram = __?___ kilogramshow do you do this problem?
1. 1 answer
2. 447 views
Hi,I have a exponential model of P = 5.3 x (1.11)^t. I need to use this model to predict when a bird population will first
1. 1 answer
2. 515 views
If sec(4 = csc(6 ) and Theta is an angle in radian measure determine m angle theta
1. 1 answer
2. 431 views
4/x=x/9Solve for x
1. 1 answer
2. 342 views
How can you identify a verb/verb phrase, and how can you tell if it is present, past, future, pres. perf., past perf., future
1. 1 answer
2. 494 views
Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or
1. 2 answers
2. 567 views
Would sin^2x / cos^2x equal tan^2x?
1. 0 answers
2. 479 views
A critical circuit in a communication network relies on a set of eight identical relays. If any one of the relays fails, it will
1. 3 answers
2. 3,925 views
Solve and use set notation.a) 6+2x > 0 > -10+2x Can someone explain how to solve this? I also had trouble doing this question:
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2. 469 views
In chess, a knight can move either two squares horizontally plus one vertically or two squares vertically plus one horizontall.a
1. 2 answers
2. 1,550 views
What is the highest power of 2 that divides evenly into 100!?
1. 0 answers
2. 444 views
Jeffrey wants to start his second hour with a hard-rock song and finish with a pop classic. How many different playlists can
1. 2 answers
2. 646 views
How would I factor this?(x-3)^3+ (3x-2)^3 Can someone explain this to me step by step? thanks
1. 2 answers
2. 387 views
How would I write this as a function of y=x^3Reflected in the y axis, horizontally stretched by a factor of 7, vertically
1. 1 answer
2. 723 views
Hi, I recently posted a question about postmodern and modern theories of criticism, and I still don't really understand it.
1. 2 answers
2. 556 views
Hi there,I've really been trying to understand the theory of postmodern criticism and modern criticism, but I still can't seem
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2. 1,096 views
what is the relationship between variables on which the prediction in the statement is based? ( in 2009 blank published a
1. 2 answers
2. 656 views
What is the relationship between variables on which predictions in the title is based?
1. 1 answer
2. 428 views
Italian Currency: EuroCurrency exchange: 1.42 us dollars to 1 Euro If a product costs 4.00 in the US, then how much will it cost
1. 1 answer
2. 687 views
A farmer has 450m of fencing to enclose a rectangular area and divide it into two sections.a) Write an equation to express the
1. 1 answer
2. 2,644 views

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