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Janet drove 304 Kilometers and the trip took 4hours. How fast was Janet traveling?
1. 2 answers
2. 799 views
The combustion of 132 g of propane, C3H8, with excess oxygen liberates 6.6x10^3 kj of heat. What is the enthalpy change for the
1. 1 answer
2. 1,055 views
I add 5 drops Potassium Iodide (KI) to 5 drops lead nitrate (PbNO3). The solution is centrifuged and the aqueous layer is
1. 1 answer
2. 1,159 views
a rectangular garden is located adjacent to a house the family needs to fence in the garden the family wants three side because
1. 1 answer
2. 654 views
Find the amount of compound interest earned in an account that opens with $27,000, earns 5.8% interest compounded daily, and is
1. 2 answers
2. 520 views
$400 invested at 3% compounded daily after a period of 3 years=$?(round to nearest cent)
1. 1 answer
2. 906 views
A telephone company representative estimates that 40% of its customers use voice mail. To test this hypothesis, she selected a
1. 1 answer
2. 688 views
Sodium carbonate reacts with nitric acid according to the following equation:Na2CO3+2HNO3-->2NaNO3+CO2+H2O a. how many moles of
1. 2 answers
2. 5,187 views
Suppose we have Bob the astronaut sitting without a space suit in a spaceship full of air on a mission to Mars. Bob is very fond
1. 0 answers
2. 473 views
Jolie has 6 quarters, 6 dimes, 4 nickels, and 10 pennies in her coin purse. If two coins are drawn at random without
1. 1 answer
2. 1,216 views
A rectangle has a length of 9inches and a height of 1.5 feet. What is the area of the rectangle in square inches?
1. 3 answers
2. 3,220 views
A mechanic charges $35 an hour plus parts to fix a car. If the parts cost $90 and it took 5 hours to do the job, what is the
1. 8 answers
2. 719 views
Suppose that you calculated the mass percent of sand in the mixture to be 42%, though the original mixture really contained only
1. 2 answers
2. 497 views
For the reaction, 2 XO + O2 = 2 X02, some data obtained from measurement of the initial rate of reaction at varying
1. 1 answer
2. 599 views
To a beaker containing 200 mL of a solution of CuSO4 was added 10.0g of magnesium metal. When the reaction was complete, a
1. 1 answer
2. 500 views
A wooden plate is shaped as a pentagon. The measure of one angle is 20°. The remaining interior angles are obtuse and of equal
1. 2 answers
2. 590 views
The following reaction has the following standard thermodynamic parameters:Reaction: C(g) + D(g)----> E(g) Delta H
1. 1 answer
2. 1,061 views
The following reaction has the following standard thermodynamic parameters:Reaction: C(g) + D(g)----> E(g) Delta H
1. 1 answer
2. 1,138 views
CCl3F boils at 23.8 degrees Celcius, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of
1. 2 answers
2. 5,311 views
What is the volume of stock solution of 51 g/L AgNO3 required to make a 50 mL solution of 0.03 M final concentration?
1. 1 answer
2. 486 views
When did the GNP of the European Community surpass that of the United States?1949, 1959, 1969, 1979, or 1989
1. 0 answers
2. 591 views
A piece of wire 25 m long is cut into two pieces. One piece is bent into a square and the other is bent into a circle.(a) How
1. 3 answers
2. 7,292 views
A rectangular storage container with a lid is to have a volume of 8 m. The length of its base is twice the width. Material for
1. 3 answers
2. 958 views
A metal sphere has a charge of +12uC(microcoulombs). What is the net charge after 2.1 x 10^13 electrons have been placed on it?
1. 0 answers
2. 632 views
Use enthalpies of formation from the textbook to calculate the standard enthalpy of the reaction for the following methane-
1. 1 answer
2. 1,363 views
CFCs such as CF2Cl2 are refrigerants whose use has been phased out because their destructive effect on Earth's ozone layer. The
1. 1 answer
2. 1,171 views
If 395 grams of water at 21 Celsius absorbs 285kJ of heat from a mountain climbers stove at an elevation where the boiling point
1. 1 answer
2. 819 views
a.) Assume that you had 100 nuts (N) and 75 bolts (B). How many NB molecules could you make by screwing one nut onto each bolt?b
1. 1 answer
2. 1,005 views
How many moles of H2 will be produced if 0.500g of Mg is reacted with 10.00mL of 2.0M HCl? Also, provide a balanced equation.
1. 2 answers
2. 640 views
I too am trying to help my son with his math homework. Problem is: at a Pokemon Tournament there are 6 players. Each player
1. 1 answer
2. 287 views
Compare and contrast state and local programs as they contribute to successful reintegration and transition services for women
1. 0 answers
2. 1,120 views
Identify the components of the diversionary program and initiatives within the NCJRS, women and girls in prison
1. 1 answer
2. 573 views
what is the theoretical yield in grams of aspirin if 2.04g of salicycli acid reacts with an excess of acetic anhydride ?
1. 1 answer
2. 688 views
A history test is to have 20 questions in which some are multiple choice and some are essay. The multiple choice questions are
1. 3 answers
2. 1,915 views
If 1/3 of 2x is 5, what is 2/3 of 4x?
1. 1 answer
2. 315 views
In Hermann Hesse's Siddhartha, describe the sentence structure--simple, compound, complex, compound-complex or a mix
1. 1 answer
2. 600 views
Can you help me with this statistics problem?A company requires all employees to take drug test. The company can afford only the
1. 0 answers
2. 1,393 views
Solve for LL^2*pi*a- 2L*pi*x + pi*x^2=0
1. 1 answer
2. 395 views
I need help setting up the equation.The portion of the graph y = ex between x = 0 and x = ln 3 is rotated around the y axis to
1. 3 answers
2. 4,545 views
What is the base in regulate?Is it reg-??
1. 1 answer
2. 345 views
I need help finding a word that means "to make greek" using "hellen" as the base
1. 1 answer
2. 678 views
Find the limit of ( n(n+1)/2 )^2 * 2/n^3 * 2/n as n goes into infinityI keep on getting 1, which is the wrong answer. Please
1. 1 answer
2. 307 views
Which has more redox energy Lysine or Tryptophan?I was thinking Lysine because it has a long chain C-H and C-C bonds but
1. 0 answers
2. 477 views
Can you help me with this? I did this many times and got different answers each time.Find f. f ''(x) = 3e^x + 3sin(x) f(0) = 0
1. 1 answer
2. 726 views
Can you please check my work.A particle is moving with the given data. Find the position of the particle. a(t) = cos(t) + sin(t)
1. 1 answer
2. 4,579 views
Find the integral of:f(x)= (x^4 + 2 sqrt x )/x^2 I tried... = x^2 + 2 sqrt x / x^2 = x^2 + 2 x^-1.5 =1/3 x^3 + ???
1. 1 answer
2. 336 views
Human vision can distinguish objects down to about a 4th of a millimeter (~250 micrometers). Given this, which of the following
1. 2 answers
2. 1,332 views
You are observing a slide of green cells under the 4X objective. Each cell covers roughly 1/8th of the width of your field of
1. 1 answer
2. 787 views
What is the solution to the system?x+y+z=-8 x-y-z=6 2x-3y+2z=-1
1. 1 answer
2. 382 views
The sides of a triangular lot are represented by x, 2x, and 3x + 2. Find each side if the perimeter is 362 feet.
1. 2 answers
2. 1,090 views
What's a good thesis statement for the book hunger games ?
1. 3 answers
2. 1,577 views
a 1000 kg car traveling at 30 m/s suddenly stops in 5 seconds. how much force was used to stop the car?
1. 3 answers
2. 2,166 views
Is this sentence punctuated correctly?The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal
1. 1 answer
2. 483 views
a ball of mass m1 and a block of mass m2 are attached by a lightweight cord that passes over a frictionless pulley of negligible
1. 1 answer
2. 1,434 views
If line LM (0, 9) is congruent to line MN (0, 1) what is the order pair for point M
1. 1 answer
2. 430 views
I need help with this question still!!!Find the values for a, b, and c such that the graph of y= ax^2 + bx + c has a relative
1. 1 answer
2. 1,048 views
I need help with this question...Find the values for a, b, and c such that the graph of y= ax^2 + bx + c has a relative maximum
1. 1 answer
2. 422 views
If a bag contains 50 marbles with 28 red ones and 22 blue ones. A marble is picked at random from the bag.what is the
1. 2 answers
2. 1,716 views
the radius of the circle PB=5cm, diameter AC=10 cm. Find line segment which is part of triangle BPC with an acute right angle.
1. 0 answers
2. 407 views
the volume of a cylinder is represented by the polynomial 2pier^3 + 12piex^2 + 18piex. find the expression for the radius and
1. 1 answer
2. 568 views
If you add 50 g of sylvite in 100 ml of water at 60 ° C, the resulting solution will she unsaturated, saturated or
1. 3 answers
2. 1,687 views
A 30 kg satellite and a 2,000 kg meteorite are 21 m away from each other. How much force exists between them?
1. 2 answers
2. 392 views
A constant net force of 390 N is applied upward to a stone that weighs 31 N. The upward force is applied through a distance of
1. 1 answer
2. 651 views
Determine the frequency of y = 2 - 3 cos 10x. (nearest tenth)Please help
1. 1 answer
2. 988 views
Determine the frequency of y = 2 &#56256;&#56404; 3 cos 10x. (nearest tenth)Please help!
1. 2 answers
2. 416 views
||u||=2||v||=3 ||w||=5 u dot v = -1 u dot w = 1 v dot w = -4 Compute: a. ||-4w|| b. (u+w) dot v c. ||u+v||^2 d. ||v-4w||^2
1. 1 answer
2. 469 views
The vector v lies in the subspace of R^3 and is spanned by the set B = {u1, u2}. Making use of the fact that the set B is
1. 0 answers
2. 498 views
What is the empirical formula of a compound that contains 27.0%S, 13.4%O,and 59.6%Cl by mass?
1. 2 answers
2. 3,220 views
Two masses m1 and m2 are suspended from the ceiling by two string segments. What is the tension in each string segment? Let m1 =
1. 0 answers
2. 605 views
A model rocket is launched with an initial velocity of 10 m/sec at an angle of 45° to the ground. What is the total time of
1. 2 answers
2. 408 views
In a tennis serve, a 0.070 kg ball can be accelerated from rest to 35 m/sec over a distance of 0.80 m. find the magnitude of the
1. 1 answer
2. 946 views
A combined seperating and throttling calorimeter was used to determined the dryness fraction of steam flowing through a steam
1. 1 answer
2. 676 views
Use an inequality to solve the problem. Be sure to show the inequality and all of your work. A car rental company has two rental
1. 2 answers
2. 637 views
how would an increase in mass inside of a rollercoaster affect the sturdiness of the coaster
1. 1 answer
2. 434 views
How many orbitals have the values n_3(n sub 3) n_3=4 and l_3(l subscript 3) l_3=3 ?How many orbitals have the values n=4, l=3,
1. 0 answers
2. 399 views
I need to provide literature allusion about Hector. and one about Paris, and one about Achilles.I am having a hard time finding
1. 0 answers
2. 665 views
Select the options below that are correct for diamagnetism and paramagnetism.A) Most elements and some compounds are
1. 3 answers
2. 1,042 views
How many orbitals have the values n_3=4 and l_3=3 ?How many orbitals have the values n=4, l=3, and ml=-2?
1. 2 answers
2. 422 views
How many orbitals have the values n3=4 and l3=3How many orbitals have the values n=4, l=3, and ml=-2
1. 2 answers
2. 396 views
Explain how to use cross product to detemine whether the ratios 27 to 36 and 12 to 16 are equal.
1. 2 answers
2. 611 views
A perpendicular bisector is a segment which is perpendicular to another segment, and specifically goes through the midpoint of
1. 1 answer
2. 1,194 views
A parallelogram is a convex quadrilateral with four vertices and two sets of opposite parallel sides. Given 3 of the vertices of
1. 0 answers
2. 615 views
1.) a computer package sale comes with two different choices of printers and four different choices of monitors. if a store
1. 2 answers
2. 958 views
What is the enthalpy for the following reaction?C2H4+H2O--->C2H5OH
1. 3 answers
2. 2,633 views
evaluate the derivative of f(X)= 3Xsin(X) at a=0
1. 2 answers
2. 382 views
In an automobile engine, at the end of the upstroke the piston is at its maximum height in a cylinder of exact dimensions. At
1. 0 answers
2. 635 views
We want to change the volume of a fixed amount of gas from 745mL to 2.30L while holding the temperature constant.To what value
1. 1 answer
2. 992 views
Graph y=x+3, y=x squared +3 and [x]+3What are the similarities and differences.
1. 0 answers
2. 462 views
Use symbolic Math symbolic representation:1. You observe that oen fox eats 100 rabbits each year. You have the idea that every
1. 4 answers
2. 591 views
Use symbolic Math symbolic representation:1. You learn that for every 1,000 meters you rise in the atmosphere, the temperature
1. 2 answers
2. 613 views
Use symbolic Math symbolic representation:1. The Density of a rock is the ratio of its mass to its volume.
1. 4 answers
2. 800 views
Use symbolic Math symbolic representation:1. The # of birds in a population equals the nbr of females plus the # of males.
1. 2 answers
2. 611 views
Benzoic acid and quinine are dissolved in a solution of dichloromethane. Besides the normal neutral forms for benzoic acid and
1. 1 answer
2. 903 views
what mass of sucrose, C12H22O11, is needed to make 300.0 mL of a .50M solution?
1. 1 answer
2. 2,899 views
I need help with this scenario please!Ten years ago, you started working as a clerk for DMDMedical Supplies. Six months ago, Liz
1. 3 answers
2. 634 views
Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,-6) and the endpoints of the minor axis
1. 0 answers
2. 557 views
does anyone know the story called " What ought a man to do on earth" It is from penn foster. Can I find it on the Internet if so
1. 4 answers
2. 638 views
where can i find the short story: What ought a man to do on earth.
1. 0 answers
2. 558 views
select the correct form for the verb escribir. 1. Dudaba que el principe___cuentos para ninos. My answer escribia b. escribe c.
1. 1 answer
2. 1,667 views
I need to find a poem but I only have a couple of lines in the poem can someone see if they can tell me the name. here is the
1. 1 answer
2. 500 views

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