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Ken

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Alexa is weighing a construction barrel up a ramp 4 feet long into the back of a truck. The barrel weighs 120 pounds and the
1. 2 answers
2. 967 views
if 8000 is invested in a long-term trust fund with an interest rate of 5% compounded continuously what is the amount of money in
1. 2 answers
2. 692 views
A cone is inscribed in a sphere of diameter 32 cm. Angle between height and slant height of the cone is 30. Find the volume of
1. 0 answers
2. 585 views
Given A = (7, 1, 3), C = (4, -2, 3), B = (5, 1, 2), and D = (6, m, n), find m and n so that segments BD and AC have the same
1. 1 answer
2. 402 views
If trapezoids have the same area, would they always have the same perimeter?
1. 1 answer
2. 540 views
An object moving with uniform acceleration has a velocity of 13.0 cm/s in the positive x-direction when its x-coordinate is 2.73
1. 2 answers
2. 1,919 views
the circumference of a cirle is pi meter. how long is the side of the largest square that can be cut from the circle
1. 1 answer
2. 889 views
A car mass of 950 kg is initially travelling at 60km/h. Determine the final speed of the car when the speed increases so that
1. 1 answer
2. 805 views
Analyze how language functions in the video “Power of Words.”What makes this video so effective in illustrating the various
1. 2 answers
2. 648 views
A flower displays contains tulips, roses, and carnations. For every 10 tulips, there are 4 roses and 6 carnation. The display
1. 2 answers
2. 1,088 views
The volume of a sample of a gas collected over water at 32 Celsius and 752 torr is 627 ml. What will the volume of the gas be
1. 1 answer
2. 742 views
What volume of 17 M sulfuric acid must be used to prepare 0.15 L of 1.78 M H2SO4?
1. 2 answers
2. 769 views
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves thattravel 1530 m/s in seawater. How deep is the
1. 5 answers
2. 674 views
A projectile is fired with an initial muzzle speed 190 m/s at an angle 60 from a position 5 meters above the ground level.Find
1. 3 answers
2. 830 views
Factoring: differences of cubes9a^2-16
1. 1 answer
2. 307 views
What two numbers multiple to get 64, but add to get -16 ?Is the answer prime
1. 1 answer
2. 445 views
John walks 5m south and 5m west. Calculate john's distance and displacement from the starting point.
1. 1 answer
2. 533 views
Solve the inequality.[( 2x^2+5x-3 ) / (x^2 -8x+ 16) ] >= 0 I factored out the bottom to (X-4)(X-4). The top should be 2(x+ ?
1. 2 answers
2. 401 views
The length of a rectangle is three more than twice its width. Its perimeter is 24 inches. Find its dimensions length and
1. 2 answers
2. 513 views
A merry-go-round is a common piece of playground equipment. A 6.42m diameter merry-go-round with a mass of 648.0kg is spinning
1. 1 answer
2. 745 views
Let f(t)=t^(2)+5t+2.Find a value of t such that the average rate of change of f(t) from 0 to t equals 11. t=
1. 1 answer
2. 678 views
i'm thinking of a number that has two tenths, twice as many hundredths as tenths, half as many hundreds as tenths, twice as many
1. 2 answers
2. 648 views
25 square floor mats in a gymnasium are connected together to form a large square area of 22500 cm². What is the length of the
1. 1 answer
2. 506 views
A box contains 18 marbles, 8 red, 4 green, & 6 white. What is the smallest number of marbles that must be selected to have one
1. 0 answers
2. 442 views
Over the past week, 34 baby boys were born at the hospital. This was 54% of all babies born. How many girls were born over the
1. 1 answer
2. 649 views
A ship leaves port at 6 am and heads due east at 20 knots. At 10 am, to avoid a storm the ship changes course to N 47°. Find
1. 3 answers
2. 651 views
Just learned log rules and I don't get it. How do you solve log5x^2 + 4log5x = 12 ? Thanks in advance.
1. 1 answer
2. 488 views
For each of the following pairs of half-cells,determine the overall electrochemical reaction that proceeds spontaneously. Na+ |
1. 2 answers
2. 1,310 views
Why is it important to not let the wooden split burn ?
1. 3 answers
2. 379 views
Give one example of a situation where you would make a discrete graph and an example of when you will see a continuos graph . I
1. 0 answers
2. 439 views
Give one example of a situation where you would make a discrete graph and an example of when you will see a continuous graph.
1. 0 answers
2. 444 views
3x/7+2/7=2
1. 1 answer
2. 259 views
Solve the following systems algebraic allyX+2y=17 X-y=2
1. 4 answers
2. 353 views
Jason loves to download music. Downloads R Us sells songs only in packages of three, and it charges $2.00 for each package of
1. 1 answer
2. 761 views
ClO- + I- → IO- + Cl-1) What are the names of these ions? is it "The hypochlorite ion reacts with iodide ion to form iodate
1. 1 answer
2. 1,024 views
Hydrogen sulfide burns in oxygen to form sulfur dioxide and water. If sulfur dioxide is being formed at a rate of 0.19 mol L-1
1. 1 answer
2. 1,285 views
The radioactive isotope, phosphorus-32, has a half-life of 14.26 days. How much phosphorus-32 will remain after 60 days?Please
1. 2 answers
2. 1,038 views
ClO3^-(aq)+3SO3^2- ¡÷ Cl^-(aq)+3SO4^2-1) If the SO3^2- ion is disaapearing at rate of 0.458 mol/L*s, how fast is the Cl^- ion
1. 3 answers
2. 567 views
How do I rearrange this equation to solve for m1 (step by step)r1/r2 = √m2/m1
1. 1 answer
2. 1,396 views
Why did Mesopotamia city-states flourished? Was it due to specialized labor or conquered an area large enough to make themselves
1. 2 answers
2. 840 views
A 10.0-m long wire whose total mass is 39.5 grams is under a tension of 577 N. A pulse is sent down the left end of the wire and
1. 0 answers
2. 587 views
P(R or S)=.64 P(R)=.38 P(S)=.52Probability Union Rule P(R and S)=P(R)+P(S)-P(R and S) .64=.38+.52-P(R and S) .54=.9-P(R and S)
1. 2 answers
2. 463 views
Cola drinks have a phosphoric acid content that is described as `from 0.057% to 0.084% of 75% phosphoric acid, by mass."
1. 1 answer
2. 1,118 views
a 150g-iron ball at 95 Celsius is dropped into a cavity in a block of ice.the cavity is then found to contain 21 g of water .
1. 0 answers
2. 671 views
a 150g-iron ball at 95 Celsius is dropped into a cavity in a block of ice.the cavity is then found to contain 21 g of water .
1. 2 answers
2. 610 views
-3/4>-6/10aa>2/5 my answer
1. 14 answers
2. 410 views
What is the HCl concentration if 65.8mL of 0.300M NaOH is required to titrate a 15.0mL sample of the acid?
1. 2 answers
2. 774 views
Waht is the reason for the seasons experiment?
1. 3 answers
2. 550 views
50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. Molarity of cl ions in the resulting solution wt of ba =137I do
1. 0 answers
2. 781 views
100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04
1. 1 answer
2. 734 views
100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04
1. 1 answer
2. 608 views
50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. molarity of cl ions in the resulting solutions is At.wt of ba =
1. 1 answer
2. 1,218 views
100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04
1. 1 answer
2. 753 views
I want the definition of all Parts of Speech(not too short, not too long) with five examples. Thanks in advance.
1. 2 answers
2. 481 views
What are the different parts of speech?
1. 1 answer
2. 463 views
Please show how to solve for problems like this: How many pounds of coffee that costs 4.50/lb be mixed with 20 lbs of coffee
1. 1 answer
2. 416 views
When taking a bath, we use approximately 450 lbs of water. How much heat, measured in British Thermal Units (BTU) is required to
1. 1 answer
2. 476 views
A 2.8L engine in a vehicle with air conditioning uses 26.5L of coolant. If the coolant has density of 1.11g/ml, what mass does
1. 1 answer
2. 530 views
Al2(s04)3 solution of 1 molal concentration is present in 1 litre solution of 2.684g/cc.How many moles of bas04 would be
1. 2 answers
2. 580 views
10L of hard water required 5.6g of lime for removing hardness. hence temporary hardness in ppm of cac03.The answer 1000ppm I
1. 1 answer
2. 551 views
342gm of 20% by mass of ba(oh)2 solution sq gr .57 is reacted with 1200ml of 2m hn03. if the find density is same as pure water
1. 1 answer
2. 623 views
10L of hard water required 5.6g of lime for removing hardness. Hence temporary hardness in ppm of cac03The answer 1000 Who helps
1. 0 answers
2. 596 views
A 0.8870g sample of a mixture of nacl and nan03 is dissolved in water, and the solution is then treated with an excess of AGN03
1. 1 answer
2. 565 views
A firework rocket is launched vertically from rest and loses 60% of its mass during a burn time of 4 seconds. What is the final
1. 0 answers
2. 554 views
the area of a triangle can be determined by using the formula A= 1/2bh, where b is the length of the base, and h is the length
1. 1 answer
2. 712 views
tree has 30 meters tall makes a shadow that is 25 meters long. at the same time Kate's shadow is 1.5 meters long how tall is
1. 1 answer
2. 525 views
Mathematica Project - Position, Velocity, and Acceleration?A rocket is fired vertically upward into the air from a launching
1. 1 answer
2. 540 views
solve for the second derivative and set to zerof"(x) = ((x^2-4)*sin(2x)- [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i don't know how
1. 5 answers
2. 537 views
solve for the second derivative and set to zerof"(x) = ((x^2-4)*sin(2x)- [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i don't know how
1. 1 answer
2. 338 views
A baseball is thrown horizontally off a cliff with a speed of 7.3 ms-1. What is the vertical distance, to the nearest tenth of a
1. 0 answers
2. 426 views
How can I identify the ions present in (NH4)2SO4.FeSO4.6H2O qualitatively?
1. 0 answers
2. 501 views
Monochromatic x-rays (λ = 0.166 nm) from a nickel target are incident on a potassium chloride (KCl) crystal surface. The
1. 1 answer
2. 1,306 views
A pinhole camera has a small circular aperture of diameter D. Light from distant objects passes through the aperture into an
1. 1 answer
2. 1,254 views
slope of the line parallel to y=6x-8
1. 1 answer
2. 908 views
CHemical equation showing how NH3 behaves as a base when dissolved in water
1. 1 answer
2. 1,410 views
A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues
1. 2 answers
2. 1,373 views
An object is moving along a circle of radius 5 . When the object is at the point (−4,3) , the y value of its position is
1. 1 answer
2. 415 views
*Optimization problem* [I don't know how to get to the answer] Problem: You have a cylindrical can with radius 4cm and height
1. 5 answers
2. 913 views
Name this compound:[Co(NH3)5Cl]Cl2
1. 2 answers
2. 735 views
Simplify each of the following exactly:(8^(-1000) sqr2^10000)/16^500 log_(8) 2
1. 0 answers
2. 373 views
1. According to the collision theory of chemical reactions:A. High energy collisions result in few successful reactions as there
1. 1 answer
2. 2,030 views
Why did Americans demand written constitutions to define and protect rights?
1. 1 answer
2. 352 views
How do I start an ICE table from the following information: BrCl3(g)+ Cl2(l) -> BrCl5(g) where Kp=7.8*10^-6 and there is
1. 1 answer
2. 489 views
Calculate the age of a plant sample that shows about one-eighth of the carbon 14 of a living sample. The half-life of carbon 14
1. 1 answer
2. 402 views
can someone help me find the antiderivative of:f(x)=4x times the squareroot of (1-x^2)
1. 1 answer
2. 307 views
which of the following integrals results from making the substitution u=x^3 in orer to find (squiggly vertical
1. 0 answers
2. 455 views
How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?
1. 1 answer
2. 488 views
How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?
1. 0 answers
2. 320 views
For the ionization of phenylacetic acid,Hc8H7O2 +H20 <--> C8H7O2- (aq) + H3o+ (aq) Ka + 4.9x10^-5 What is the concentration of
1. 1 answer
2. 1,167 views
At a certain temperature, the Kp for the decomposition of H2S is 0.832H2S (g) <-- --> H2 (g) + S (g) Initially, only H2S is
1. 1 answer
2. 571 views
a 200 gram mass is balanced at one end of a meterstick and a 100 gram mass is at the other. the center of mass is 36.75 cm from
1. 3 answers
2. 1,154 views
In a chromatography experiment, a solution was prepared by mixing 12.98 mg of isopropanol plus 10.00 mL of an unknown containing
1. 0 answers
2. 577 views
A blood serum sample containing Na+ gave an emission signal of 4.27 mV. A small volume of concentrated standard Na+ was then
1. 1 answer
2. 1,256 views
Tap water is measured for arsenic and found to have a mean signal of 0.006065. Next, a small amount of Arsenic is spiked into
1. 0 answers
2. 461 views
You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that
1. 2 answers
2. 662 views
Testing for water hardness using EDTA as a titrant:Suggest a reason why the buffer is good for only a week. The buffer contains
1. 0 answers
2. 545 views
If performing a potentiometric halide titration with Ag+:1. Is siver nitrate a primary standard? Explain. 2. What is the purpose
1. 1 answer
2. 785 views
For water hardness experiment using EDTA titrant:1. Suppose water hardness was 600mg CaCO3/L, how much sample should be used to
1. 1 answer
2. 604 views
A 25 mL sample of waste water was treated with acid and SCN- to form an intense red complex. This complex was diluted to 100.0
1. 1 answer
2. 506 views
For idometric titration of copper, why is HCl added to KIO3 and then titrated immediatedly?What would happen if
1. 2 answers
2. 713 views

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