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Joe

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Calculate the theoretical yield (g) of precipitate formed when 10.0 mL of 0.50 M magnesium nitrate is added to 5.0 mL of 0.50 M
1. 1 answer
2. 894 views
Ellen is 11 years older than Maja. Last year Ellen was twice as old as Maja. How old is Maja now?
1. 1 answer
2. 2,172 views
A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand
1. 1 answer
2. 906 views
The \rm p \it K_{\rm a} of this reaction is 4.2. In a 0.74\it M solution of benzoic acid, what percentage of the molecules are
1. 0 answers
2. 347 views
in triangle lmn altitude lk is 12cm long through point j of lk is a line drawn parallel to ms, dividing the triangle into two
1. 1 answer
2. 588 views
1) Frank and Oswalt report a molar absorptivity of 4700 L mol^-1 cm^-1 for thiocyanatoiron(lll) ion. What absorbance would you
1. 2 answers
2. 2,029 views
2 SO2 (g)+O2 (g)→2 SO3↑How many grams of SO3(g) are formed if 8.45 grams of oxygen are used?
1. 1 answer
2. 1,079 views
I need to figure this problem out, I am using visual studio C#.• Powers - Write an application that displays a tables of
1. 0 answers
2. 452 views
The wires leading to and from a 0.12--diameter lightbulb filament are 1.5 in diameter. The wire to the filament carries a
1. 0 answers
2. 572 views
Write the word form for 450, 708Is it four hundred and fifty thousand, seven hundred and eight
1. 1 answer
2. 589 views
Cos[x + (7 Pi)/4] + Cos[x - (7 Pi)/4] = 1
1. 1 answer
2. 422 views
Find the derivatives of the functionk(x)=sqrt(sin(2x))^3 I think I have the answer and was wondering if i had it correct
1. 2 answers
2. 479 views
Find the derivatives of the functionsk(x)=(x^3+e^x)^4
1. 1 answer
2. 508 views
Translate: I have a big nose.Is it: Tengo la nariz grande. or : Tengo una nariz grande. My teacher says you must use el, la,
1. 1 answer
2. 1,091 views
A golfer hits a shot to a green that is elevated 3.00 m above the point where the ball is struck. The ball leaves the club at a
1. 1 answer
2. 690 views
13 2/9 - 8 8/9
1. 1 answer
2. 231 views
13 2/9 - 8 8/9
1. 1 answer
2. 247 views
Hello. I am having a little bit of touble with algebra, distributive property. The question is-20 (19-a) can you please help?!
1. 1 answer
2. 352 views
I need to decide if these capitalized words are preterite or imperfect and I just don't get it. Could someone help me out
1. 2 answers
2. 1,547 views
When solving 5x^2-50x+125=0, a space alien got x=8 for one of the two roots. What possible base could the alien be using? (Note:
1. 1 answer
2. 492 views
You carry out an exothermic reaction inside a Styrofoam cup calorimeter, using a temperature probe to monitor the temperature
1. 4 answers
2. 715 views
write the hidden question or questions in the problemBilly Bob wins $500 in a school raffle. He decides to keep $120 for
1. 1 answer
2. 429 views
In a population of jaguars, a gene with two alleles encodes the fur color. Allele B causes melanism (dark fur) and is dominant
1. 1 answer
2. 1,310 views
Please finish y+7=6/7x-30/7
1. 1 answer
2. 291 views
A lizard of mass 3.0 g is warming itself in the bright sunlight. It casts a shadow of 1.6 cm^2 on a piece of paper help
1. 3 answers
2. 1,299 views
A 20 g lead bullet leaves a rifle at a temperature of 47 degrees celcieus and travels at a velocity of 500 m/s until it hits a
1. 1 answer
2. 620 views
if the H+ in acid mine drainage is 6.3 x 10^-5 mol/L, the pH of the drainage water is ___.It would require ___ gal of 0.1 M
1. 2 answers
2. 989 views
name the property32X4=(30X4)+(2X4)
1. 1 answer
2. 533 views
A rock is thrown upwards (vertically) from the ground with an initial velocity of 40 feet per second. If acceleration due to
1. 1 answer
2. 1,259 views
2.7q - 2.3 -2.6q = -0.9q -1.6
1. 1 answer
2. 279 views
A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient
1. 1 answer
2. 2,032 views
round to the given place6.64 (tenths) 2.435 (hundredths) 6.753 (ones) 78.456 (tenths)
1. 10 answers
2. 1,275 views
Meredith took 15 minutes to unpack 4 boxes of books. If she unpacked a total of 28 boxes, how long did it take her to unpack all
1. 8 answers
2. 546 views
- Three hockey teams, the Crabs, the Eels, and the Seals, played each other once with no shutouts ( every team scored at least 1
1. 2 answers
2. 1,185 views
- Three hockey teams, the Crabs, the Eels, and the Seals, played each other once with no shutouts ( every team scored at least 1
1. 1 answer
2. 1,095 views
Solve2×2×2×3×7
1. 1 answer
2. 389 views
What if u have 71/10 and u have to Chang that in to a mixed number
1. 1 answer
2. 614 views
Estimate each quotient766÷8 $31.75÷8
1. 1 answer
2. 730 views
How many hours are required for the deposition of 15.0 grams of Al from molten AlCl3 by a current of 15.0 amps?
1. 1 answer
2. 835 views
What is the molar mass of a compound if a gaseous sample has a density of 2.807 g/L at 18 °C and 728 torr?
1. 2 answers
2. 595 views
Dimethylamine burns in oxygen according to the following equation:4 C2H7N + 15 O2 → 8 CO2 + 14 H2O + 2 N2 (a) How many liters
1. 1 answer
2. 498 views
A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is
1. 1 answer
2. 817 views
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
1. 2 answers
2. 800 views
An object is placed 4 cm in front of a concave lens of focal length 3 cm. Using the lens equation, find where the image will
1. 1 answer
2. 462 views
A high school volleyball team has 20 members. If there is an equal number of members from each of the 4 grades, how many
1. 3 answers
2. 566 views
how many minutes are there in 6 hours and 45 minutes
1. 2 answers
2. 430 views
a longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel the length of a 2.5-m slinky (see figure 16.3). Determine
1. 1 answer
2. 5,097 views
a longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel the length of a 2.5-m slinky (see figure 16.3). Determine
1. 1 answer
2. 593 views
Suppose the sound is emitted uniformly in all directions by a public address system. The intensity at a location 22 m away from
1. 0 answers
2. 614 views
light is an electromagnetic wave and travels at a speed of 3.00 x 108 m/s. the human eye is most sensitive to yellow-green light
1. 2 answers
2. 1,594 views
at a distance of 3.8 m from a siren, the sound intensity is 3.6 x 10-2 W/m2. Assuming that the siren radiates sound uniformly in
1. 0 answers
2. 1,053 views
the distance between a loudspeaker and the left ear of a listener is 2.70 m a) calculate the time required for sound to travel
1. 1 answer
2. 1,232 views
From a vantage point very close to the track at a stock car race, you hear the sound emitted by a moving car. You detect a
1. 0 answers
2. 1,012 views
a particle starts at time t = 0 and moves along the x - axis so that its position at any time t is greater than or equal to zero
1. 1 answer
2. 3,207 views
What is another way to write the expression 44n? 44÷n?
1. 3 answers
2. 1,467 views
A bag contains 10 white golf balls and 6 striped golf balls. A golfer wants to add 112 golf balls to the bag. He wants the ratio
1. 18 answers
2. 5,232 views
Write four million, four thousand, forty in standard form.
1. 1 answer
2. 438 views
Order the following numbers from greatest to least.2.071; 20.071; 20.71 Is this right 20.71; 20.071; 2.071
1. 1 answer
2. 455 views
Without multiply how many decimals places r in the product of 4.97 and 3.456?
1. 1 answer
2. 792 views
How much total work is done by 450-N girl who lifts a 52-N backpack 1.2m to her shoulders and then climbs a ladder 3.0m high?
1. 3 answers
2. 586 views
A paperweight weighs 6.9N in air. When it is completely submerged in water it appears to weigh 4.3N. A) What is the volume of
1. 1 answer
2. 469 views
A 2000 kg truck is at rest at a stop sign. A 1100kg car collides head-on with the truck. The car was moving at 15.0m/s before
1. 1 answer
2. 677 views
A paperweight weighs 6.9N in air. When it is completely submerged in water it appears to weigh 4.3N. A) What is the volume of
1. 0 answers
2. 491 views
A fulcrum is placed under the center of a uniform 4.00m long, 3.00kg board. Child A has a mass of 42 kg. This child sits on the
1. 1 answer
2. 1,619 views
A paperweight weighs 6.9N in air. When it is completely submerged in water it appears to weigh 4.3N. A) What is the volume of
1. 1 answer
2. 1,307 views
A 2000 kg truck is at rest at a stop sign. A 1100kg car collides head-on with the truck. The car was moving at 15.0m/s before
1. 2 answers
2. 720 views
A uniform, horizontal beam is 5.00m long and has a weight of 200N. The beam is hinged at one end to a wall. A 600N weight is
1. 1 answer
2. 1,357 views
A pendulum has a length of 1.35m. What mass should be placed on a spring with a spring constant of 10.0N/m to have oscillations
1. 1 answer
2. 370 views
A duck is floating on water with 26% of its total volume submerged below the surface. If the duck has a mass of 2.6kg, what is
1. 1 answer
2. 1,016 views
A 3.0 kg sphere moving to the right at 2.0m/s undergoes an elastic head-on collision with a 2.0kg sphere. The 2.0kg sphere is
1. 1 answer
2. 460 views
According to a national study, 45% of american adults have hypertension, 20% have hypotension, and 35% have normal blood
1. 0 answers
2. 1,000 views
Chelsea left the White House and traveled toward the capital at an average speed of 34 kn/h. Jasmine left at the same time and
1. 1 answer
2. 661 views
In practical use, oral contraceptives have a 5% chance of failing. If a doctor has 10 patients using oral contraceptives, what
1. 1 answer
2. 499 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
1. 1 answer
2. 520 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
1. 1 answer
2. 625 views
James is 15 years older than Sue. In 12 years James will twice Sue's age. How old are James and Sue?
1. 1 answer
2. 568 views
Find the derivatives of the function g(t)= cosh^3 t.
1. 1 answer
2. 822 views
Come up with an expression for a function f such that the domain of f is all real numbers, lim (f(x) = 3) as x approaches 2 and
1. 0 answers
2. 382 views
The acceleration due to gravity on planet X isone fifth that on the surface of the earth. If it takes 3.9 s for an object to
1. 2 answers
2. 914 views
There are two types of consumers of potatoes: 10 are rich and 50 are poor. Every rich consumer has a demand of 0 for a price of
1. 0 answers
2. 556 views
The market supply for potatoes in New York is 2,000 tons for a price of $200 a ton, and 5,000 tons for a price of $500 a ton.
1. 0 answers
2. 1,026 views
Which of the following solutions has the highest concentration of Cl- ions?500 mL of 0.10 M NaCl 100 mL of 0.20 M MgCl2 200 mL
1. 1 answer
2. 1,581 views
(2x+3)^2 is 25x right?
1. 1 answer
2. 880 views
(2x-3)(x^2-3x+5)
1. 1 answer
2. 288 views
How do I solve this?(7x+5y)^2
1. 1 answer
2. 270 views
(x+5y)(7x+3y)How do I solve this. I know I have to somehow combine the x and y but can't remember.
1. 1 answer
2. 311 views
how do I solve this: (17x^3-5x^2+4x-3)-(5x^3-9x^2-8x+11) and putting the resulting polynomial in standard form?
1. 1 answer
2. 1,133 views
A new planet has been discovered that has a mass one-tenth that of Earth and a radius that is one-sixth that of Earth. Determine
1. 1 answer
2. 1,588 views
Although astronauts appear weightless, they are not. They only appear weightless because they are in free fall. If a 79 kg
1. 2 answers
2. 640 views
new planet is discovered orbiting a distant star. Observations have confirmed that the planet has a circular orbit with a radius
1. 1 answer
2. 680 views
B. Telephones S.'s store and orders certain goods that S. delivers to B. Neither party says anything about the price or payment
1. 1 answer
2. 360 views
A music club sends you an advertisement. You select ten "free" downloads and agree to become a member. When you get your free
1. 1 answer
2. 1,068 views
A speedy tortoise can run at 0.09 m/s, and a hare can run 20 times as fast. In a race, they start at the same time, but the hare
1. 0 answers
2. 539 views
A tank originally contains 5 lb of salt dissolved in 200 gal of water: Starting at time t=0, a salt solution containing 0.10
1. 0 answers
2. 1,375 views
waves moving on a lake have a speed of 2.0 m/s and a distant of 1.5m between adjacent crest. what is the frequency of the waves?
1. 0 answers
2. 626 views
A car traveling at a constant speed of 39.6 m/s passes a trooper hidden behind a billboard. One second later the trooper starts
1. 1 answer
2. 1,000 views
A 6107 kg elevator is moving 4.6 m/s up. The tension in the elevator cable is 66,512.6 N. Determine the acceleration of the
1. 1 answer
2. 425 views
If y(t)=3e^(t^2)is known to be the solution of the initial value problemy'+p(t)y=0, y(0)=y_0, what must the function p(t) and
1. 1 answer
2. 391 views
Jim is paid overtime when he works more than 40 hours of per week. Write an expression for the number of hours he works overtime
1. 8 answers
2. 3,309 views
Assume that garbage collection is now free. Suppose a local goverment began to charge a household $2 every time that a household
1. 0 answers
2. 354 views

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