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Eddie

Questions and answers by visitors named Eddie

Questions (93)

Calculate the amount of energy in kilojoules needed to change 225 g of water ice at -10 C to steam at 125 C. The following
1. 5 answers
2. 6,879 views
The height of a parallelogram is 5 feet more than its base. If the area of the parallelogram is 204 square feet, find its base
1. 5 answers
2. 6,842 views
The Z company specializes in caring for zebras. They want to make a 3-dimensional "Z" to put in front of their company
1. 4 answers
2. 712 views
I have to match the following sentances to the sentance patterns listed1.Visiting old mine shafts can be an interesting
1. 4 answers
2. 4,231 views
Show the half equations at the anode and cathode for an electrolysis of concentrated magnesium chloride solution using inert
1. 3 answers
2. 761 views
Given the following data:S(s) + 3/2 O2(g)-->SO3(g) ∆H = -395.2 kJ 2SO2(g) + O2(g) -->2SO3(g)∆H = -198.2 kJ Calculate ∆H
1. 3 answers
2. 2,624 views
Why do we see sometimes see a rainbow around the moon or sun.Because the light often refracts the particles to create the colors
1. 1 answer
2. 573 views
A 2.0kg siverware drawer become stuck, so the owner graually pulls with more and more force. When the applied force reaches 8.0N
1. 4 answers
2. 623 views
<b>When deciding upon which fuel source used to power a vechicle, engineers often use the heat released in combustion of
1. 2 answers
2. 557 views
When deciding upon which fuel source used to power a vechicle, engineers often use the heat released in combustion of differning
1. 3 answers
2. 546 views
Hello - I am afreshman & honors algebra is kicking my butt -I need to simplify the following (-6c)(2-3c) can some on help
1. 4 answers
2. 405 views
A 9500kg car traveling at 16m/s strikes a second car. The two stick together and move off with a speed of 6.0m/s. What is the
1. 4 answers
2. 892 views
Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur
1. 1 answer
2. 475 views
Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur
1. 1 answer
2. 1,020 views
Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur
1. 2 answers
2. 605 views
Is there any other way to test for starch besides the potassium iodide test?
1. 1 answer
2. 391 views
Crate a chart to compare the niches of the different species in your ecosystem.10 Species / Grasslands I don't how to do it. >.<
1. 7 answers
2. 459 views
A team of researchers do not use a full gene, but use a shortened version .. (which is coded for all necessary amino acids)Can
1. 1 answer
2. 458 views
what do two of the stars in the bowl of the big dipper point to ?
1. 1 answer
2. 355 views
A baseball pitcher throws a ball horizontally under negligible air resistance. The ball falls 83cm in travelling 18.4 m to the
1. 2 answers
2. 1,355 views
how many ways are there to chose 6 people out of 14 to be on a committee?what is the equation your supposed to use
1. 1 answer
2. 342 views
I need to know how i would get started on how to make a portfolio.I'm needing it for my Humanities class for college
1. 3 answers
2. 437 views
Explain that distinction of "interactive-passive" test of jurisdiction.
1. 1 answer
2. 447 views
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation:
1. 3 answers
2. 1,864 views
A green leaf has a surface area of 2.40 cm^2.If solar radiation is 1120 W/m^2, how many photons strike the leaf every second?
1. 1 answer
2. 929 views
Without our two great political parties cutting across economic and geographic interests, democracy as we know it could never
1. 3 answers
2. 405 views
Determine the [H3O^+] of a 0.240 M solution of formic acid.
1. 3 answers
2. 901 views
Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.
1. 3 answers
2. 1,163 views
Calculate the standard cell potential for each of the following electrochemical cells.Ni^+2(aq)+Mg(s)--->Ni(s)+Mg^+2(aq) I used
1. 4 answers
2. 2,832 views
A point charge of -14nC and +12nC is located 12cm along the x-axis. Determine the magnitude and direction of the electric field
1. 2 answers
2. 729 views
You use 11 ml of a 1M H2SO4 solution to titrate 6ml of ammonium hydroxide solution. What was the concentration of the ammonium
1. 1 answer
2. 431 views
What is the lewis structure for Propanoic Acid?
1. 3 answers
2. 1,481 views
You take 2 liters of water at 20 degrees Celsius and remove heat at 200W from it for 5 min. What is the temperature and state of
1. 1 answer
2. 497 views
Please write the chemical equation and calculate the reaction enthalpy (or energy) for the total chlorination (addition of
1. 1 answer
2. 479 views
40 years ago, the first time a vehicle was driven over an extraterrestrial surface. The Soviet Lunokhod (moon walker) rover
1. 1 answer
2. 407 views
A 23.6 molar solution of formic acid (methanoic acid) has a density of 1.16 g/ml. The molar mass of H, C, and O are 1g/mol,
1. 4 answers
2. 1,258 views
Please write the chemical equation and calculate the reaction enthalpy (or energy) for the total bromination (addition of
1. 1 answer
2. 376 views
Name 2 fractions that are equivalent to 34th
1. 4 answers
2. 195 views
there are a group of ducks and goats there are 99 heads and legs among them there twice as many ducks than goats are many ducks
1. 4 answers
2. 1,069 views
solve for x2ax+b=c
1. 3 answers
2. 547 views
I need to identify the subject, verb, and any complements (direct object, indirect object, subject complement, objective
1. 16 answers
2. 15,138 views
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream
1. 3 answers
2. 727 views
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream
1. 5 answers
2. 3,086 views
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream
1. 2 answers
2. 834 views
Diane rows a boat at 8.3 m/s directly across a river that flows at 5.6 m/s.(a) What is the resultant speed of the boat? m/s (b)
1. 1 answer
2. 855 views
While flying due east at 130 km/h, an airplane is also carried northward at 41 km/h by the wind blowing due north. What is the
1. 2 answers
2. 760 views
An airplane flies toward 124° at 525 km/h. What is the component of the plane's velocity(a) toward 90°? km/h (b) toward 180°?
1. 1 answer
2. 729 views
A boat heads directly across a river 39 m wide at 3.9 m/s. The current is flowing downstream at 2.4 m/s.(a) What is the
1. 1 answer
2. 750 views
Janet jumps off a high-diving platform with a horizontal velocity of 3.5 m/s and lands in the water 1.7 s later. How high is the
1. 4 answers
2. 1,496 views
Given b is the midpoint of AC. AB=6x+7 and BC is 18x-4 what is the length of AB BC AC
1. 4 answers
2. 1,072 views
Sue is swinging a yo-yo around her head. What happens to the size of the centripetal acceleration if the mass of the yo-yo is
1. 2 answers
2. 537 views
A coin is placed on a stereo record revolving at 33 1/3 revolutions per minute.(b) Find the acceleration of the coin when it is
1. 1 answer
2. 1,037 views
A 50-kg crate is pulled across the ice with a rope. A force of 100 N is applied at an angle of 38° with the horizontal.
1. 2 answers
2. 573 views
A 5.6-kg bowling ball is accelerated from rest to a velocity of 17 m/s as the bowler covers 5.0 m of approach before releasing
1. 2 answers
2. 536 views
A 2.5-kg block slides down a 17.0° inclined plane with constant acceleration. The block starts from rest at the top. At the
1. 2 answers
2. 662 views
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is
1. 1 answer
2. 498 views
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is
1. 1 answer
2. 464 views
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is
1. 1 answer
2. 431 views
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is
1. 1 answer
2. 897 views
What is the antisymmetric relations on the set {0,1}?
1. 1 answer
2. 284 views
A plane is traveling at 90 miles per hour due south. What do we know about it? the speed, its velocity or both its speed and its
1. 1 answer
2. 410 views
1. The problem statement, all variables and given/known dataA point charge is placed at each corner of a square with side length
1. 1 answer
2. 767 views
The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5
1. 4 answers
2. 1,276 views
Yellow colors in fireworks are die to the 589 nm radiation of sodium ions.a.) How much energy is given off by one photon of
1. 3 answers
2. 844 views
you are taking a 10 question essay test.How many ways can you answer the test?
1. 1 answer
2. 434 views
how many moles of Nitrogen are in 80g of N2O?
1. 3 answers
2. 781 views
A bag contains 4 red, 6 white and 9 green marbles. How many ways can 3 red, 2 white and 1 green marbles be selected? Do you used
1. 1 answer
2. 400 views
If you have a 300 ohm transmission line terminated with an antenna that presents a (400 ohm - j 600 ohm) load impedance:What is
1. 1 answer
2. 412 views
Job 1: Donivan Tech offered this girl a job at $50,310 a year at 45 hrs a week, traveling 45 miles a day. She estimates 15% of
1. 2 answers
2. 1,049 views
A rectangular poster measures 42 inches by 26 inches. A frame shop fitted the poster with a half inch mat border
1. 2 answers
2. 1,272 views
1. If 96% of Chinese couples have one child (which is female 50% of the time), and the remaining 4% of Chinese couples engage in
1. 2 answers
2. 897 views
Suggest an organizational strategy that you think would be effective for a health care organization. Recommend a key HIT tactic
1. 2 answers
2. 644 views
Simplify the expression completely.-15m^3 z^5 / -4m^4 z^2
1. 1 answer
2. 376 views
A mixture of gases is made up 0.48 mol of Ar and 0.94 mol of N2with a total pressure of 1.68 atm. What is the partial pressure
1. 1 answer
2. 411 views
A 3.68 g sample of solid gold is heated from 24 ºC to 34 ºC. How much energy(in joules and calories) is required? Thank you!
1. 2 answers
2. 496 views
In a coffee cup calorimeter, 1.60 g of NH4NO3 is mixed with 75.0 gwater at an initial temperature of 23.50 ºC. When the salt
1. 3 answers
2. 1,246 views
How much ice (in grams) with the temperature of 0∘C would have to melt to lower the temperature of 355mL of water from 26∘C
1. 3 answers
2. 3,058 views
Find the area.A rectangle with sides of lengths 4/5 foot and 1/2 foot
1. 2 answers
2. 1,166 views
Give the half equations at the anode and cathode for a dilute hydrochloric acid,dilute copper chloride solution and the
1. 4 answers
2. 1,325 views
What role should our government play in Price Ceilings and a Price Floors?
1. 2 answers
2. 570 views
A car travels in the +x-direction on a straight and level road. For the first 5.00s of its motion, the average velocity of the
1. 3 answers
2. 1,024 views
Let x denote the time taken to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a
1. 1 answer
2. 852 views
Katy has 13 oranges, 12 apples, and 6 bananas. She also has two boxes. Which fruit cannot be put evenly into the two boxes?
1. 5 answers
2. 2,369 views
A pan filled with hot food cools from 94°C to 86°C in 2minutes when the room temperaturs is at 20°C .How long will it take to
1. 6 answers
2. 1,680 views
How many grams of cesium chloride (CsCl) will be needed to make 750. mL of a 0.100 M CsCl aqueous solution? The formula mass of
1. 2 answers
2. 527 views
Samantha has 34 coins in her pocket, all which are nickles and quarters. If the total value of her change is $3.90, how many
1. 1 answer
2. 438 views
Suppose f(x) =(x-1)^2/x+1 if x < 2 (x^2-2x-8)/x-4 if 2 <= x < 4 (1/(x-3))+5 if 4 <= x Identify any points of discontinuity, and
1. 2 answers
2. 488 views
If my car gets 18 miles to the gallon on the highway how many gallons would it take to go 620 miles
1. 2 answers
2. 493 views
Jeff rear-ended a car on his way to work and damaged his vehicle. He drove his car to the local body shop for an estimate of the
1. 4 answers
2. 981 views
A box of mass m=10 kg rests on a surface inclined at 0=30° to the horizontal. It is connected by a light weight cord which
1. 4 answers
2. 644 views
What are best ways to give proper credit when using someone else's work?
1. 2 answers
2. 476 views
A uniform stick Ab can be balanced on a knife edge 10cm from one end when a weight of 200N is hung from that end the 200N weight
1. 1 answer
2. 343 views
A ball rolling down a hill was displaced 19.6 m while uniformly accelerating from rest. If the final velocity was 6.00m/s what
1. 2 answers
2. 480 views

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