Whitney

What are the five types of economic resources

18 years ago

How can you solve for a derived unit involving density? I don't know what you mean. Density is a derived unit, no mater what the units used are. Do you have an example of what you are doing? Yes. What is the mass of a sample of material that has a volume...

18 years ago

Can someone please check my work on this problem? For some reason, I get the feeling that I did it wrong. sqrt=square root (by the way) 3-sqrt10 sqrt5+sqrt2 -------- * ---------- sqrt5-sqrt2 sqrt5+sqrt2 (3-sqrt10)(sqrt5+sqrt2) = ----------------------- 5-...

18 years ago

Why is ice used during the sublimation process?

17 years ago

what precipitate (if any) will form? Al(NO3)3 (aq) + Ba(OH)2 (aq)

17 years ago

What volume of 0.0500 M Ba(OH)2 will react completely with 27.50 mL of 0.550 M HCl?

17 years ago

Discuss the P.E. and K.E. of a pendelum swing.

17 years ago

Why should you stir baking soda before using it?

17 years ago

Why should you stir baking soda before using it? how can you prevent pudding and other thickened products from lumping?

17 years ago

Mrs Thompson is putting new tile on her bathroom floor. Each tile measures 2 inches on each side. The bathroom floor is 3 feet long and 2 feet wide. How many tiles will she use to cover the entire floor?

16 years ago

PLEASE HELP..the table shows the number of labor hours required to produce a digital camera and bushel of wheat in China and S.Korea. China Digital cameras 100hrs China Wheat 5hrs S.Korea Digital cameras 90hrs S.Korea Wheat 3hrs The question is if each co...

16 years ago

During your experiment, you are drive water from the hydrate MxXy*zH2O. You subsequently determine that your hydrate has six molecules of waters associated with each formula unit. However, the bottle the hydrate came from indicated a formula with only fou...

16 years ago

What is the adverb and verb it describes in this sentence?-"Jason walked to the table and stood there.

15 years ago

Is it acceptable to write with no changes whatsoever "The hearing-impaired child needs special accommodations for the field trip?"

15 years ago

Gives us the speed of stars

15 years ago

A tortoise can run with a speed of 0.10m/s and a hare can run 20 times as fast. In a race, they start at the same time, but the hare stops to rest for 2.0min. The tortoise wins by a shell (20cm). How long does the race take? What is the length of the race...

15 years ago

Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores o...

15 years ago

Quick Question - For a spontaneous reaction, ΔS°>0 and K >1. Is this always?

15 years ago

a cliff diver falling at 9.8 m/s2 takes 1.5 seconds to hit the water. How high is the cliff?

15 years ago

A $50 computer program is on sale for $37.50. What is the percent decrease?

15 years ago

What is the wavelength(in meters) of a proton(mass=1.673x10^-24g) that has been accelera ted to 25% of the speed of light?

14 years ago

What is the relationship between the ionization energy of the monoanion such as CL- and the electron affinity of the neutral atom?

14 years ago

16/2t=2

14 years ago

use a combustion reaction of liquid ethanol( C2H5OH) an air as a source of work, assuming T=25 celcius, air pressure is 1 atm, and all products are gases with partial pressure of 10 atm each. How high can one lift a 1000 kg weight by burning 100 g of etha...

14 years ago

In health care, there are various physician-centered communication attributes that occur during the patient-provider interaction. Which of the following attributes can be beneficial during the interaction? Which of the following attributes can be detrimen...

14 years ago

What are the 5 sources of power?

14 years ago

Which of the four compounds contains a metal? HC2H3O2 CaCO3 C3H8 CO2

14 years ago

If a pentagon has a side of 140, how many inches is the rest of the side?

14 years ago

Find the average velocity over the time interval from 1 to 3 seconds. Express your answer in meters per second to the nearest integer.

14 years ago

Final Project paper. how do i go about setting up my paper to make sure i discuss all of the things that are being asked of me for my final paper.

14 years ago

3. Your firm is considering buying a new machine that costs $200,000, is expected to generate $110,000 in new revenue each year and will cost $45,000 a year to operate. If your firm's marginal income tax rate is 35% what is the Net Cash Flow your firm wil...

14 years ago

. A woman whose father was color blind (X-linked, recessive) and who has type A blood has accused a man who is himself color blind of fathering her child. The accused man has type B blood. For each of the following cases, indicate whether or not the man m...

14 years ago

In Siberian Huskies base fur color is represented by black & white fur BB, tan/yellow & white fur Bb, and white only fur bb. Siberians all posses two style of fur wire hair (W_) and smooth (ww). What would the genotype and phenotype frequencies be for a t...

14 years ago

The gene for fur color in rabbits is an incompletely dominant situation: BB rabbits are brown, Bb rabbits are grey, and bb rabbits are white. The gene for fur color distribution is however co-dominant. This gene, S, has two alleles, S1 and S2; S1S1 animal...

14 years ago

In cats the allele B produces black, whereas b produces yellow. Neither gene is dominant, and in the heterozygous state the phenotype is a combination of yellow and black spots called tortoise-shell. The alleles B and b are “X-Linked”. If a tortoise-shell...

14 years ago

A 375 g piece of iron was heated to 975 °C and then quenched in a bucket containing one gallon of water at 20 °C. What was the temperature of the water after the iron and the water came to thermal equilibrium?

14 years ago

8. Name three specific "poet stereotypes" that Margaret Atwood discusses or hints at in her speech. 9. What were Margaret Atwood's very first poetry experiences? 10. What are your earliest memories of poetry? Were they similar to Margaret Atwood's first p...

14 years ago

The projectile motion is fired with velocity of magnitude vo at the angle feta. Find feta for which the maximum elevation of the projectile is twice its range

14 years ago

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the total acceleration of the car is 2.5m/s^2 53 degrees north of west. Find the radial and tangential components of the acceleration of the car a...

14 years ago

By algebraic manipulation of the first two kinematic equations for one-dimensional motion: 1) vf = vi + at 2) xf = xi + (vi)(t) + (1/2)(a)(t)^2 Obtain the other two kinematic equations : 3) vf^2 - vi^2 = 2ax 4) xf = xi + (1/2)(vi + vf)t

14 years ago

Does the limit lim 2011t/3-(squareroot)t+9 exist ? t-0

14 years ago

A single bead can slide with negligible friction on a wire that is bent into a circular loop of radius 15.0 cm, as in Figure P6.68. The circle is always in a vertical plane and rotates steadily about its vertical diameter with (a) a period of 0.450 s. The...

14 years ago

The mass m=1.00 kg is set up as a pendulum of length 0.6m . Initially in the position of h=0.2 m above the lowest point, and the pendulum is given initial speed of 1.00 m/s. What is the largest mass M that could be temporarily lifted in such setup?

14 years ago

If you square the equation v=v0 + at, you'll have an expression for v2. Equate the two expressions for v2, and show that the resulting equation reduces to the equation x= x0+v0t + 1/2at2.

13 years ago

You are keeping pace with another runner, at 4 minutes per mile, but are 16 m behind her when she is 130m from the finish line.At what pace will you be running at the finish? *Express your answer using two significant figures.

13 years ago

How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?

13 years ago

What will be the concentration if 52 milliters of a solution that is 12 parts per million in sodium chloride is diluted with enough water to make 97 millilters of solution?

13 years ago

I had to read an excerpt from Ralph Waldo Emerson's "Self-Reliance". My assignment is to answer uestions about it. The uestion I am stumped on is: How important is Emerson's use of the adjective "foolish" in his discussion of consistency?

13 years ago

1.Using the conventional color wheel, name two PAIRS of complementary colors. This means at least 4 colors. When you put complementary colors next to each other, What is the visual effect? 2. Describe the difference between visual texture and actual textu...

13 years ago

Which of following is NOT characteristics of all fish? a.gills as respiratory organs b.two-chambered heart c.swim bladder for buoyancy organ d.skin with scales e.presence of jaws

13 years ago

what are the upper and lower limits of the variable below? upper lower 15-19 60-69 * is there a formula i need to use for this.

13 years ago

(On the contrary). Flor is describing the courses she is taking, but you have an entirely different point of view. Complete each sentence, using the opposite of the word in italics. ¡OJO! Remember that adjectives must agree in number and gender with the n...

13 years ago

C. La vida de dos estudiantes. Complete each sentence with the correct form of the verb in parentheses. 1. Rodrigo y su novia estáis despiertos a las siete de la mañana. 2. Ella prepara el café y, a las ocho de la mañana, los dos tomamos el desayuno junto...

13 years ago

C. La vida de dos estudiantes. Complete each sentence with the correct form of the verb in parentheses. 1. Rodrigo y su novia estáis (estar) despiertos a las siete de la mañana. 2. Ella prepara (preparar) el café y, a las ocho de la mañana, los dos tomamo...

13 years ago

How do I figure these out? A solution of sodium thiosulfate, Na2S2O3, is 0.1365 M. 29.28 mL of this solution reacts with 39.79 mL of I2 solution. What is the molarity of the I2 solution? 2(Na2S2O3) + I2↔Na2S4O6 + 2(NaI) 16.77 mL of the I2 solution from ab...

12 years ago

A 890 mL NaCl solution is diluted to a volume of 1.15 and a concentration of 8.00 . What was the initial concentration? How do I go about this? M1V1=M2V2? and if it is how do I replace the variables?

12 years ago

In this unit, you read William Wordsworth’s poems “Lines Composed a Few Miles Above Tintern Abbey,” “The World is Too Much with Us,” and “I Wandered Lonely as a Cloud.” How are these poems representative of the Romantic Period?

12 years ago

If a sponge (from the ocean, not a cleaning sponge. :P) were torn apart by a predator, what would happen?

12 years ago

What is the correct charge balance equation for an aqueous solution of MnCl2 that ionizes to Mn2 , Cl–, MnCl , and MnOH ? What is the correct mass balance equation for the same solution?

12 years ago

A skateboarder, with an initial speed of 2.6m/s , rolls virtually friction free down a straight incline of length 18m in 3.3 s. What angle is the incline plane?

12 years ago

If 507 g FeCL2 were used up in the reaction FeCL2 + 2NaOH > Fe(OH)@(s) + 2NaCL, how many grams of Fe(OH)2 would be formed?

11 years ago

What is the oxidation half-reaction for Mg(s)+ZnCL2(aq)>MgCL2(aq)+Zn(s)?

11 years ago

How much would the boiling point of water increase if 4 mol of sugar were added to 1 kg of water (Kb=0.51C/(mol/kg)for water and i=1 for sugar)?

11 years ago

The test scores for a math class are shown below. 81,84,82,93,81,85,95,89,86,94 What is the standard deviation of the data set? Roun your answer to the nearest tenth 4.9 5.5 5.3 5.1

11 years ago

What is the common ratio of the geometric sequence whose second and fourth terms are 6 and 54, respectively?

11 years ago

Kevin and Rob are standing on opposite sides of Edmonton's River Valley. In order to see a boat on the river, Kevin has to look down 32°, and Rob has to look down 38°. The width of the valley is 750m, and the boat is exactly between Kevin and Rob. How muc...

11 years ago

How do I find the greatest common factor of 54, 81, and 135? I don't understand the tree diagram either. :(

11 years ago

Simplify. (a) 2^3(5)^-2 =? (b) 2^-3/a^4 = 2^3a^4 =8a^4????

11 years ago

Convert 62 inches to yards, feet, inches? How do I do all three at once? Please help.

11 years ago

Convert 2yd, 2ft, 5in. to centimeters. Convert 10yd,1ft, 7in. to meters. I tried it twice but still didn't get it right. Please help me out.

11 years ago

An electrician was hired to run the wires for a surround-sound stereo speaker system. She purchased 2 rolls of 14-gauge speaker wire. Each roll contains 4 m of wire. For each of 2 speakers, 2 ft. of wire are required. For each of the other 2 speakers, 11...

11 years ago

One hundred sixty acres is a square with a side length of one-half a mile. How many hectares are in one square mile?

11 years ago

-80=8b-15+5b How do I solve this and what does check mean?

11 years ago

Scarlet-Camille needs three lengths of wood to finish a project. She needs one piece measuring 148 cm, one piece measuring 38 cm, and one piece measuring 42 cm. Every time Scarlet-Camille cuts a length of wood she loses 3 mm of wood. If Scarlet-Camille ca...

11 years ago

Convert 86 inches to yards, feet, and inches? Why the inches again?

11 years ago

A regulation baseball bat must be 2/3/4 inches or less in diameter and shorter than 42 inches long. Which bat would not be allowed? a)diameter 6cm b) length 0.9m c)diameter 7m d)length 1.0668m d?

11 years ago

The height of a pop can is 15 cm and its shadow is 20 cm long. A carton of milk next to the can is 0.25 m tall. Determine the length of the carton's shadow, to one tenth of a centimeter. I did 100cm*0.25... but the answer is 33.3cm How did they get that?

11 years ago

You have a 5/16 in. drill bit. Will it drill a hole large enough to fit a 5 mm bolt? Show two different ways to answer this question. Explain your thinking. I couldn't even figure out the first way. Please help!

11 years ago

A right pyramid has a surface area of 258 cm2. A right cone has a base radius of 4 cm. The cone and pyramid have equal surface areas. What is the height of the cone to the nearest tenth of a centimetre?

11 years ago

The centre of a doughnut is removed and formed to make a sphere of dough with diameter 2.5 cm. A batch of these spheres is to be covered in a sugar glaze. There is enough glaze to cover an area of 4710 cm^2. How many spheres can be glazed?

10 years ago

what mass of nitrogen gas is required to react completely with 2.79 of hydrogen gas to produce ammonia?

10 years ago

A ball is shot out of a spring and into a hollow ballast which then swings upwards 2.5 cm. The ball has a mass of 0.10 kg, the ballast has a mass of 0.50 kg and the spring constant is 500 N/m. How fast was the ballast-ball system moving immediately after...

10 years ago

I'm really confused on these two. Can someone help explain this to me? Thanks! :) 1.) What values of u are not permissible in the expression csc(u)tan(u)? 2.) What values of u are not permissible in the expression sin(u)cot(u)?

10 years ago

I'm really confused on these two. Can someone help explain this to me? Thanks! :) 1.) What values of u are not permissible in the expression csc(u)tan(u)? 2.) What values of u are not permissible in the expression sin(u)cot(u)?

10 years ago

For a certain reaction, the activation energy is 52.1 kJ/mole. By what ratio will the rate constant change if the temperature is decreased from 175C to 75C?

10 years ago

The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) „_ 2 NO2(g) The reaction is second-order with respect to NO(g) and first-order with respect to O2(g). At a given temperature, the rate constant, k, equals 4.7 x 10^2 M^¡V2s^¡V1. What is the rate of r...

10 years ago

The perimeter of a square must be greater than 104 inches but less than 150 inches. Find the range of possible side lengths that satisfy these conditions. (Hint: the perimeter of a square is given by P=4s, where s represents the length of a side).

10 years ago

W have three air carts (labeled #1, #2, and #3) on an air track. The carts are equipped with spring bumpers so that all collisions are elastic. The masses of the carts are m1 = 5m, m2 = 2m, and m3 = m. Initially, cart #1 is given a velocity to the right o...

9 years ago

How do you say "She said I could not" in Spanish?

9 years ago

What is the average of 12,43,37 and 40

8 years ago

What is the equivalent fraction of 3/9 with a denominator of 450?

3 years ago

If d varies s and d =120 when s =30 find the formula connecting d and s

3 years ago

sublimation of naphthalene

17 years ago

yeah i placed ice in a tube with a cap and placed that in a flask over the naphthlalene vapors. Thanks! sorry for not being more specific on the experiment!!!

17 years ago

What is the pH of a 0.020 M HClO4 solution?

14 years ago

The radius of a circle is simply half the diameter. So, you'd just divide the diameter by 2. If not given the diameter, you'd take the formula given and evaluate it for "r".

14 years ago

Okay, i will do that.

14 years ago

thank you. one other thing is how do i set it up in apa format i have never understood how to do that by reading it on the school webpage it never makes since to me.

14 years ago

k thank you for your help i really appreciate it.

14 years ago

He should have been read his Miranda rights, and should exercise his rights. He should only ask for an attorney. Yes he is adequately protected, again, so long as he does not vacate his rights, and also how he is handled will be dependent upon his actions...

14 years ago

To drwls v2= vo2+ 2a(x-x0)

13 years ago

Also, what is the constant acceleration do you need to catch her at the finish if she maintains a constant speed?

13 years ago

True or False The air flow in the respiratory system of birds is similar to that of mammals.

13 years ago

Water

13 years ago

C. La vida de dos estudiantes. Complete each sentence with the correct form of the verb in parentheses. 1. Rodrigo y su novia estáis (estar) despiertos a las siete de la mañana. 2. Ella prepara (preparar) el café y, a las ocho de la mañana, los dos tomamo...

13 years ago

Henderson-Hasselbalch equation: pH=pKa+log((base)/(acid)) Kb*Ka=1.0*10^-14 1.74*10^-5*Ka=1.0*10^-14 Ka=1.0*10^-14/1.74*10^-5 Ka=5.75*10^-10 pKa=-log(5.75*10^-10) pKa=9.24 pH=9.24+log((.246)/(.0954)) pH=9.65

12 years ago

a) 411,600 b) -42000 I need help!

11 years ago

Improvements to the environment brought about through the politicians’ public support of environmental regulations more than offset the damage done to the environment by the politicians’ private planes.

11 years ago

Yes. The answer would be anything. "She hasn't said nothing about her accident" doesn't really make sense.

11 years ago

Anyone is the correct answer. You're right, "no one" is a double negative

11 years ago

C is the correct answer. Good job.

11 years ago

But how did they get that answer? I want to know how to do it.

11 years ago

70

10 years ago

Wouldn't the correct equation be 7+3x>30? Because it is asking how many weeks it would take to have MORE than 30 not equals 30...?

5 years ago

Y=3x+13

4 years ago