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Hannah

Questions (2,007)

A 150L water heater is set to a cutoff temperature of 49 degrees C and that the incoming water is at 298K, calculate the energy
1. 2 answers
2. 645 views
How did China become a feudal state under the Zhou?A.The Shang shared regional power over lands with the Zhou. B.Warlords
1. 1 answer
2. 1,111 views
You roll two fair dice. Let E be the event that an even total shows on the dice. Let F be the event that a three shows on at
1. 1 answer
2. 3,597 views
A transformer has 60 turns in the primary and 1200 turns in secondary.if the primary voltage is 500 V what will be the secondary
1. 2 answers
2. 1,256 views
Divide Rs 5000 in the ratio 2:3:5
1. 1 answer
2. 823 views
What is the quotient and remainder of 4x^3-2x^2+x+1 divided by x+2?
1. 1 answer
2. 401 views
What is the quotient and remainder of 4x^3-2x^2+x+1 divided by x+2?
1. 1 answer
2. 441 views
What is the quotient and remainder of 4x^3-2x^2+x+1 divided by x+2?
1. 1 answer
2. 386 views
In the clever daughter adapted from a Czech folktale, why does the magistrate use a riddle to decide the case?
1. 1 answer
2. 1,040 views
The mean of 4 numbers is 15.Three of them are 7,10,14.Find the fourth number
1. 1 answer
2. 391 views
What is the best estimate for the product of 289 and 7?
1. 5 answers
2. 1,771 views
If x<5<1/x-1, then x could be which of the following?a) 5 b) 1 c) 7/6 d) 10/3 Please help, I am thinking the answer is C.
1. 1 answer
2. 359 views
Green light has a frequency of about 5.3Hz×1014Hz. Using the relationship c=fλ, find its wavelength in air.
1. 1 answer
2. 2,554 views
A 100-g chunk of 72 ∘C iron is dropped into a cavity in a very large block of ice at 0∘C.What is the mass of ice that melts.
1. 2 answers
2. 7,598 views
What is the longest wavelength of light that can be absorbed by a hydrogen atom that is initially in the second excited state?
1. 1 answer
2. 2,449 views
Many people mistakenly believe that the astronauts who orbit Earth are "above gravity." Earth's mass is 6×1024kg, and its
1. 1 answer
2. 2,632 views
A penny on its side moving at speed v slides off the horizontal surface of a table a vertical distance y from the floor.If the
1. 1 answer
2. 3,150 views
Using the formula for gravity, find the force of gravity on a 0.80-kg mass at Earth's surface. (The mass of Earth is 6×10^24kg,
1. 2 answers
2. 1,567 views
A skier slides down a frictionless slope of angle 30, is the mechanical energy conserved?
1. 1 answer
2. 454 views
If your mass is 76kg, find your acceleration.
1. 2 answers
2. 2,791 views
A base of a solid is the region bounded by y=e^-x, the x axis, the y axis, and the line x=2. Each cross section perpendicular to
1. 2 answers
2. 6,160 views
If rectangle ABCD has vertices A(6, 2), B(2, 2), and C(0, 6), explain how to find the coordinate for the fourth vertex. Then
1. 3 answers
2. 780 views
If i have 8cups of raisins and i use 1/3cups for one bag how many bags can i make
1. 1 answer
2. 383 views
7 g bullet is ﬁred into a 124 g block that is initially at rest at the edge of a frictionless table of height 1.3 m. The
1. 1 answer
2. 583 views
A typical red blood cell subtends an angle of only 1.7×10−5 rad when viewed at a person's near-point distance of 25 cm.
1. 0 answers
2. 1,016 views
Find the minimum aperture diameter of a camera that can resolve detail on the ground the size of a person (1.5 m ) from an SR-71
1. 0 answers
2. 946 views
Emily fills a container with 6cubes. Each cube has an edge length of 3cm. The container is in the shape of a right rectangular
1. 1 answer
2. 659 views
1.)order the group of quadratic fractions from widest to narrowest graph.y=3x^2;y=5x^2;y=7x^2 a.)y=3x^2;y=5x^2;y=7x^2
1. 5 answers
2. 2,589 views
1.)if an object is dropped from a height of 144 ft the function h(t)=-16t^2+144 gives the height of the object after t seconds.
1. 5 answers
2. 7,302 views
Please help !1.)a catapult launches a boulder with an upward velocity of 122 feet per second. the height of the boulder, h, in
1. 4 answers
2. 7,937 views
How does meiosis and fertilization in humans and other sexual reproductive organisms maintain the normal chromosomes number for
1. 1 answer
2. 455 views
A photo is printed on a 20-inch by 24-inch piece of paper. The photo covers 320 square inches and has a uniform border. What is
1. 2 answers
2. 1,243 views
A survey revealed that 44% of movie goers will eat some amount of popcorn during a movie. If the next 17 movie goers are asked
1. 2 answers
2. 597 views
The quotient for 20÷1/4 is 5. It wants to know which expression has the same quotient as 20÷1/4.A.1/2÷40 B.1/4÷20 C.15÷1/5
1. 1 answer
2. 1,430 views
In To Kill A MockingBird book by Harper Lee. What is the Boo Radley game? Who plays it and how do the different characters feel
1. 0 answers
2. 515 views
Why do you think women and children remain the most vulnerable populations on the planet ?plez help me
1. 2 answers
2. 510 views
A sample of radioactive isotope I is to be used for medical diagnosis of the kidneys. The isotope has a half-life of 8.0 days,
1. 0 answers
2. 710 views
How can one recognise the beat frequency from a graph?Why is the beat frequency equal to the difference of the frequency of the
1. 0 answers
2. 457 views
A car moves 3 kph. Car B which is 50 m ahead of Car A is moving at 6 kph. If car A accelerates by 5m/s/s, determine if the cars
1. 1 answer
2. 424 views
A car moves 3 kph. Car B which is 50 m ahead of Car A is moving at 6 kph. If car A accelerates by 5m/s/s, determine if the cars
1. 1 answer
2. 496 views
How would I differentiatey = 4cos(2x)cos(3x) u = cos(2x) u' = -2sin(2x) v = cos(3x) v' = -3sin(3x) This is all I have so far
1. 1 answer
2. 518 views
How does salt hydrolysis work between sodium hydroxide and lactic acid in a titration?
1. 1 answer
2. 493 views
How do you derive: 2cos(3-2x)?
1. 1 answer
2. 376 views
4. Suppose that an excess of propane, C3H8 , burns in 320 g of oxygen, How many moles of water will be formed?C3H8 + 5 O2 --> 3
1. 7 answers
2. 4,808 views
5. How many grams of iron oxide can be produced from 2.50 g of oxygen reacting with iron, according to the following equation?2
1. 4 answers
2. 3,540 views
5. How many grams of iron oxide can be produced from 2.50 g of oxygen reacting with iron, according to the following equation?2
1. 2 answers
2. 883 views
In a right triangle, one angle measures x degrees where sin x degrees= 5/8. What is the value of cos (90 degrees-x) ?
1. 1 answer
2. 1,286 views
There are 5 chairs in a row, and three people. In how many ways can you place the people on the chairs? (each person must occupy
1. 1 answer
2. 585 views
The salary scale in three school districts are as follows, for a teacher with a master’s degree:District P: $30,000 plus $1500
1. 1 answer
2. 648 views
In which step is the error?Step 1: Let x = 1 and y = 1. Step 2: By substitution xy = y^2. Step 3: Multiplying both sides by -1,
1. 1 answer
2. 724 views
When you turn on a battery powered flashlight you transform...1) heat into light chemical energy 2) chemical energy into
1. 6 answers
2. 1,734 views
Write the equation for the dissolution of NH4NO3 in water. If 4.98 mol of NH4NO3 are dissolved, how many total moles of ions are
1. 1 answer
2. 2,223 views
Would there be any effect on the amount of precipitate in the experiment if tap water containing calcium ions is used instead of
1. 1 answer
2. 1,414 views
1.)the storm *remains* a threat to the costal villagea.)action verb b.)linking verb** c.)direct object d.)indirect object.
1. 4 answers
2. 2,357 views
How do you factorise 2x^2 - x - 1
1. 1 answer
2. 501 views
Imagine a landing craft approaching the surface of the moon of a distant planet. If the engine provides an upward force (thrust)
1. 1 answer
2. 579 views
To pass a course with a C grade, a student must have an average of 70 or greater. A students grades on three tests are 63, 76,
1. 4 answers
2. 5,042 views
Two ocean beaches are being affected by erosion. The table shows the width, in feet, of each beach at high tide measured where
1. 2 answers
2. 3,256 views
A. they would not make any changes in their behavior.B. They would demand more public goods and services. C. They would stop
1. 2 answers
2. 422 views
Which of these goods or services is paid for with federal taxes 1 community roads 2 military bases 3 public universities 3
1. 3 answers
2. 508 views
XYZ Gaming Inc. Wants to invest in some new goods to raise it's overall productivity. Which of these would be the best choice?Bi
1. 1 answer
2. 472 views
The man lifted the 15 pound weight 2 feet above his head. How much work was done?
1. 1 answer
2. 479 views
a bakery sells bagels for $0.85 each an muffins for $1.10 each the bakery hopes to earn $400 each day from these sales. Write an
1. 1 answer
2. 807 views
A 48-kg box is being pushed a distance of 7.5 m across the floor by a force Upper POverscript right-arrow EndScripts ⁢ whose
1. 1 answer
2. 649 views
Starting with an initial speed of 3.86 m/s at a height of 0.480 m, a 1.78-kg ball swings downward and strikes a 4.75-kg ball
1. 0 answers
2. 489 views
The moon is a satellite that orbits the earth at a radius of 3.85 × 108 m. The mass of the earth is 5.98 × 1024 kg. What is
1. 2 answers
2. 3,029 views
How does the direction of the electric current, moving across a battery powered device, differ from the direction of travel in
1. 1 answer
2. 574 views
Batteries are made of two metals with different electron affinities. What does the phrase “electron affinity” mean and how
1. 2 answers
2. 3,818 views
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the
1. 0 answers
2. 764 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 11.5 m cables attached to a vertical rotating
1. 2 answers
2. 1,155 views
An art teacher has a box of pencils. 1/10 are green, 1/2 are blue, 1/4 are orange, and the remaining 45 are red. How many
1. 1 answer
2. 668 views
Please check my answers.Which of the following sentences is punctuated correctly ? On January 1, 2000, many people thought that
1. 0 answers
2. 654 views
A person is trying to judge whether a picture (mass = 2.37 kg) is properly positioned by temporarily pressing it against a wall.
1. 0 answers
2. 648 views
A rocket blasts off from rest and attains a speed of 53.8 m/s in 17.4 s. An astronaut has a mass of 67.2 kg. What is the
1. 0 answers
2. 586 views
Add together these vectors: V1= 60 Newtons at 45 degrees N of W; V2= 5Newtons at 30 degrees S of EIs it [email protected] S of E??
1. 2 answers
2. 789 views
Add together these vectors: V1= 60 Newtons at 45 degrees N of W; V2= 5Newtons at 30 degrees S of EIs it [email protected] S of E??
1. 1 answer
2. 474 views
A plane flies 230 mph at 60 degrees north of west for 2.5 hours. Answer the following questions.A. How far did it travel total?
1. 0 answers
2. 612 views
Translate two thirds of the sum of r and 9 plus the product of 8and s
1. 1 answer
2. 437 views
The monthly cost in dollars from producing x units of an item is given by the cost function C(x)=2x^2-160x+18400. How many units
1. 2 answers
2. 588 views
A 45 kg girl is sitting on one end of a see-saw, 0.6 m away from the the pivot pt. How far away form the pivot pt must a 60 kg
1. 1 answer
2. 4,919 views
a uniform meter stick is at rotational equilibrium when 220 g is suspended at 5 com, 120 g is suspended at 90, and the support
1. 1 answer
2. 1,614 views
Change the function below into standard form (y = a cos[b(x-h)]+k) then give the vertical shift.y = (cos[2x-π])/3 is this
1. 1 answer
2. 430 views
1. What do colonialism and imperialism both require?A. one country giving money to another B. 2 countries sharing resources** C.
1. 20 answers
2. 2,797 views
There is a 60% that your math teacher will give a pop quiz tonight and, due to the fact that you have a soccer game, there is an
1. 1 answer
2. 1,313 views
There is a 60% that your math teacher will give a pop quiz tonight and, due to the fact that you have a soccer game, there is an
1. 1 answer
2. 1,903 views
As an aid in working this problem, consult Interactive Solution 3.62. A ferryboat is traveling in a direction 32.0 ° north of
1. 1 answer
2. 792 views
In a marathon race Chad is out in front, running due north at a speed of 3.98 m/s. John is 95 m behind him, running due north at
1. 1 answer
2. 2,378 views
An airplane with a speed of 82.2 m/s is climbing upward at an angle of 71.6 ° with respect to the horizontal. When the plane's
1. 0 answers
2. 560 views
A volleyball is spiked so that it has an initial velocity of 19.9 m/s directed downward at an angle of 55.8 ° below the
1. 0 answers
2. 505 views
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.890 m/s at an
1. 1 answer
2. 644 views
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 660 m/s. The gun is pointed directly at the
1. 1 answer
2. 649 views
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the
1. 1 answer
2. 1,189 views
Since “Harriet Tubman” is in the narrative essay genre, which of the following would be most suitable to add at the end of
1. 18 answers
2. 1,636 views
I'm in desperate need of help on how to do these 4 problems.Write the function g(x) with the indicated transformations. 1.
1. 1 answer
2. 650 views
bus A stops every 12 minuets Bus B stops every 9 minuets on the same circuit they stop at the same bus stop at 9:15 am when is
1. 11 answers
2. 2,759 views
write the sentence as an absolute value inequality. I have no clue how to do this!1 a number less than 4 units from 0 2. a
1. 1 answer
2. 773 views
The rules for a book report say that the report should have 300 words with an absolute value deviation of at most 20 words.
1. 2 answers
2. 3,595 views
What would this look like if a write a function g whose graph represents the indicated transformation of the graph of f?1. f(x)=
1. 1 answer
2. 948 views
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 6.27 m/s. The car is a
1. 1 answer
2. 436 views
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top
1. 0 answers
2. 489 views

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