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Brittney
Questions (107)
Arturo is building a storage chest in the shape of a rectangular prism with dimensions x feet by x feet by 6 feet. He wants the
1 answer
302 views
Write an equation for the line that passes through the points (4,8) and (6,2).
3 answers
2,164 views
A nonconducting sphere with net charge +Q uniformly distributed throughout its volume creates an electric field of magnitude E
4 answers
1,014 views
How much pizza does eight of the friends get if they have one large pizza that they share equally.
1 answer
430 views
What is the acceleration of a kg object if force of 3 n is applied to it?
1 answer
440 views
Come up with a new linear function that has a slope that falls in the range
−< < 1 0 m . Choose two different initial values.
2 answers
1,065 views
y^2+xy-3x=-5
dy/dt=-4 x=3 y=1 find dx/dt. i tried doing 2y(dy/dt)+ydx/dt-3=0 but i am not getting the right answer. Please tell
4 answers
577 views
A child sitting 1.80 m from the center of a merry-go-round moves with a speed of 1.45 m/s . Calculate the centripetal
3 answers
834 views
What factors should you consider when determining the best graph or display to represent a given set of data? In your answer,
10 answers
5,166 views
A square has a side length of 18 feet . This square is dilated by a scale of 1/2 to create a new square . What is the side
2 answers
514 views
How long does it take an automobile traveling 62.9 km/h to become even with a car that is traveling in another lane at 48.9 km/h
2 answers
815 views
Fraction symbols can usually be safely introduced
A. at the beginning of third grade. B. near the end of first grade. C. near the
3 answers
1,917 views
Sarah understands that if there are 11 ones, the first 10 move over to the tens column as one unit (i.e.,
one group of 10). What
1 answer
418 views
Joseph is making different shapes with a rubber band and a geoboard. Which of the following would be
a geometric concept that
1 answer
500 views
When a teacher chooses learning objectives for a child, which question should be asked?
A. What should Kelly learn next? B.
4 answers
611 views
A basic rule in evaluating learning activities is to be sure
A. the child has no prior knowledge. B. a variety of science process
1 answer
476 views
Which of the following process skills is generally more important for use with older children?
A. Observing B. Communicating C.
9 answers
442 views
A rectangle wheat field is 10^5 m long as 10^5 m wide. What is the area?
1 answer
372 views
An original samplemof an unknown potassium chloride/potassium cholate mixture weighed 1.042g before heating and 0.943g after
2 answers
579 views
A 0.97 m aqueous solution of an ionic compound with the formula MX has a freezing point of -2.5 ∘C .
4 answers
1,562 views
"When in the Course of human events, it becomes necessary for one people to dissolve the political bands which have connected
4 answers
2,992 views
A marble rolls off the edge of a table that is 0.82 m high. The marble is moving at a speed of 0.11 m/s at the moment that it
3 answers
761 views
How is the Sky Screamer at Six Flags an example of Newton's First Law?
1 answer
415 views
Why do negative emotions make it hard to learn or work toward a goal?
1 answer
473 views
Please Help!!!!!
If i spent 3 hours in homework and of that time 1/3 on math and 1/5 on science, what method could i use to solve
1 answer
469 views
A motorist traveling 55 mph is being pursued by a highway patrol car traveling 65 mph. If the patrol car is four miles behind
2 answers
636 views
XeO3 + I- ----> Xe + I2 (acidic solution)
CN)2 -----> CN- + OCN- (basic solution) MnO2 + SO32- ---> Mn2+ + S2O62- (acidic
2 answers
1,390 views
Balance the following equation for a basic solution.
MnO4-+C2O4-2= Mno2 + CO3-2
4 answers
2,754 views
Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighed 100 grams at birth and gained 8
4 answers
2,069 views
J. J. Berzelius collected the following data for three reactions:
Reaction 1 – 11.56 grams of lead sulfide, PbS, were formed
2 answers
810 views
When cane sugar reacts with oxygen in living systems, carbon dioxide and water are produced. What weight of carbon dioxide can
4 answers
1,527 views
how many H2O molecules can be formed from 200 H2 molecules and 200 O2 molecules?
5 answers
883 views
Manganese(III) fluoride, MnF3, can be prepared by the following reaction:
2MnI2(s) + 13F2(g) → 2MnF3(s) + 4IF5(l) If the
3 answers
1,049 views
Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure.
C2H4(g) + H2O(g)
4 answers
1,300 views
Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so,
4 answers
1,179 views
Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of
1 answer
448 views
Write a recursive formula for the sequence: 12,-1,-14,-27...
3 answers
944 views
The coefficients of friction between a 250 lb football sled and the grass are Mu(s)=0.6 and Mu(k)=0.4. For grass and cleats,
1 answer
701 views
If you have 75 cents and you have 27 nickels and dimes how many nickels do you have.
1 answer
479 views
if a number is subtracted from the numerator of 3/5 and the same number is added to the denomminator of 3/5, the result is
3 answers
1,483 views
A car traveling at 20 m/s applies the brakes. The coefficients of static and kinetic friction between the tires
and the road are
4 answers
865 views
What equivalent fraction would you use to subtract 1/3 from 5/9?
4 answers
1,123 views
What is the temperature of 0.45mol of gas at a pressure of 1.0at and a volume of 10.1L ?
if anyone can tell me what i need to do
1 answer
400 views
The radius of a merry-go-round is 7 meters, and it takes 12 seconds to make a complete revolution. What is the speed of an atom
2 answers
772 views
How do you solve a(x+1)= b solving for x
1 answer
294 views
How do you solve a(x+1)= b solving for x
1 answer
355 views
If your body develops a charge of -17 (microcoulombs), how many excess electrons has it acquired, and what is their collective
4 answers
3,607 views
Suppose a 19.3 kg curling stone was on a frictionless ramp. If the ramp is 4.76 m tall and 19.5 m long (along the incline), how
1 answer
456 views
A force sensor is used to measure a force applied to a 9.1 kg box on a hard, horizontal surface. It records that the box starts
3 answers
534 views
Calculate the uncertainty in the position (in A) of an electron moving at a speed of (6.5 +/- 0.1)* 10^5m/s. The mass of an
3 answers
1,231 views
How did George Kennan’s containment doctrine change during the Truman, Eisenhower and Kennedy administrations? Which president
1 answer
890 views
Describe President Reagan’s foreign policy goals and summarize several of the major, specific actions he took to meet those
2 answers
625 views
How was the civil rights movement of the 1950s and 1960s a continuation of the Reconstruction-era struggle for blacks to achieve
2 answers
571 views
Benzene has the empirical formula CH and an experimental molar mass of 78 g/mol. What is its molecular formula? Explain how you
5 answers
1,906 views
How did George Kennan’s containment doctrine change during the Truman, Eisenhower and Kennedy administrations? Which president
1 answer
532 views
A string has a length of 84 cm. The string is stretched taut, and both ends are restricted to be nonmoving. Touching the string
3 answers
908 views
If the magnitude of the electric field in air exceeds roughly 3 X10^6 N/C, the air breaks down and a spark forms. For a two-disk
4 answers
4,325 views
Part 1: You finally made it…graduation day has arrived! Your parents are so proud that they are throwing you a HUGE party.
2 answers
774 views
A 30 kg child steps to a dock from a 60 kg boat,giving the boat an acceleration of 2m/s^2. Neglecting water Resistance, the
2 answers
607 views
Can somebody please help me evaluate:
13 1/3 + 6 2/9 ? (=
1 answer
359 views
Can somebody please help me Evaluate:
3 1/9 * 2 1/4 ? (=
6 answers
428 views
10 2 2/3 / 4
3 answers
288 views
The door and the seals on an aircraft are subject to a tremendous amount of force during flight. At an altitude of 10,000 m
3 answers
874 views
A 110.-g sample of copper (specific heat capacity = 0.20 J/°C · g) is heated to 82.4°C and then placed in a container of
3 answers
2,763 views
In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After
2 answers
850 views
I need help finding the asymptotes, and domain of these two graphs..
1) 1/x^2 Vertical Asym.:? Domain:? Horizontal asym.: y=0 2)
1 answer
397 views
Determine whether x+6 is a factor of x^3+4x^2-27x-90
2 answers
705 views
ok did i do this right?
evaluate the expression log(base4)(16)(4) log(4) 16 + log(4) 4 ? can you do that?
3 answers
483 views
Expand the expression of log5x^(1/3)y^6
5 is the base of the log. this is pretty tricky stuff and im not sure how to attempt it..
3 answers
499 views
Solve the equation and check for extraneous solutions.
10^((x^2)+1)=100,000 How do i handle this when the exponents have
1 answer
417 views
Find a power function of the form y=ax^b whose graph passes throught the points (2, 5) and (8, 12).
How do i solve this??
3 answers
2,196 views
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, the brakes are locked,
2 answers
709 views
Please Help!!!
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, the
5 answers
3,832 views
Suppose the roller coaster in Fig. 6-41 (h1 = 30 m, h2 = 11 m, h3 = 20) passes point 1 with a speed of 2.10 m/s. If the average
3 answers
553 views
A child in a boat throws a 5.40 kg package out horizontally with a speed of 10.0 m/s, Fig. 7-31. Calculate the velocity of the
1 answer
913 views
Dr. Miller pulled a wooden crate at a constant accelerationof 1.23 meters per second per second with a forceof 752 newtons at an
2 answers
562 views
How does the structure of macromolecules such as proteins act as an index of relatedness between species?
2 answers
586 views
if sam earned $4,000 and gave 1/5 wawy and invested 1/2 of the remaining amount how much did he have left?
1 answer
443 views
Why is YBa2Cu3O7 a super conductor? Explain Chemistry and Structural bases.
1 answer
309 views
Show, with equations, why the solution from which BaSo4 is precipitated cannot be allowed to be more then 0.01-0.05M in HCl.
2 answers
595 views
How many monosaccharides most likely make up this molecule: C 10H20 O10
1 answer
323 views
Alex has 7 dimes and 3 nickels.What fraction of the coins are dimes?
4 answers
668 views
Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 9 less than twice
4 answers
1,207 views
The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian
2 answers
1,152 views
Write a chemical equation to express the fact that, at 0 °C, ice melts by absorbing 334 J of heat per gram of ice.
2 answers
568 views
A single drop of water is injected into a balloon at 25C that contains ammonia, at 1 atm. What will happen to the V of the
1 answer
303 views
Exactly 10mL of water at 25 degrees C was added to a hot iron skillet. all of the water was converted into steam at 100 degrees
4 answers
2,784 views
During a strenuous workout, a student generates 2000 kJ of heat energy. What mass of water would have to evaporate from the
4 answers
1,666 views
How do you graph this liear inequality
2y greater than equal to 4x-6
1 answer
447 views
Please check this over and see of they are right...if they are not can you please tell the the right answer and explain how you
3 answers
472 views
A balloon is filled to a volume of 1.0 102 mL at a temperature of 38.0°C. The balloon is then cooled at constant pressure to a
3 answers
491 views
Assume that the life expectancy of U.S. males is normally distributed with a mean of 80 years and a standard deviation of 4
4 answers
547 views
The market’s required return on Gitche Gumee Oil Company stock is currently 13.8 percent. If the expected return on the market
1 answer
1,125 views
I am reading a book called To kill a mocking bird. and had a couple questions. . .
-what is the dare with which dill challenges
4 answers
556 views
o In the future, how will thinking critically influence the ways that you:
Read? Write? Process information?
1 answer
533 views
Summarize the effects of one type of sexual dysfunction that can affect both men and women. What are some factors that may cause
3 answers
682 views
Jennifer is a 29-year-old administrative assistant married to Antonio, an Italian engineer, whom Jennifer met four years earlier
4 answers
559 views
_______a rhythmic disturbance that carry energywithout carrying matter
1 answer
313 views
Can anyone explain this equation.
Simplify by removing factors of 1. q^2-64/(q+8)^2
3 answers
404 views
3x-27/55÷x-9/15x my answer is =3(11x^2-4)/11x
is this correct.
2 answers
532 views
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