a certain reaction has the following generaln form

72,592 results, page 96

physics

Tarzan, who weighs 780 N, swings from a cliff at the end of a 12.0 m vine that hangs from a high tree limb and initially makes an angle of 49.0° with the vertical. Assume that an x axis extends horizontally away from the cliff edge and a y axis extends upward. Immediately ...

6th grade math quiz

1. Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored spinner (red, blue, green, and yellow)? A. H-red, H-blue, H-green, H-yellow, T-yellow, T-green, T-blue, T-red B. H-red, T-red, H- blue, T-blue, H-...

Physics check

A certain radioactive isotope has a half-life of one hour. At noon, 100g of the material is present. How much of the original isotope will be present at 3:00 p.m.----1/8 6:00 p.m.-----1/16 10:00 p.m.-----1/32 Are these correct?

Evaluating elasticity

The demand function for a certain item is x = 35(sqrt(32-p^2)) ---Evaluate the elasticity at 5. E(5)= I don't know how to find elasticity, so i don't know how to start this problem. If someone could explain elasticity i think that i could figure it out.

Physics

There is an electric field in a certain region that is defined as E=axihat, a is N/C and x is defined by the position in meters. What is the volume charge density in the region. So far I did 32p=(32)(8.85*10^-12) I got 3.54*10^-10, where did I go wrong?

Aged College Student

The dosage of a certain medication is 1/4 ounce for every 50 pounds of body weight. How many ounces of this medication are required for a person who weighs 175 pounds?

Question about the board

I am looking at many questions that just have 2 or 3 words to them and responses that talk about fixing certain paragraphs. Am I missing something or is the board messing up?

physics II

A certain material is in a room at 27°C. If the absolute temperature (K) of the material is tripled, its resistance doubles. (Water freezes at 273 K.) What is the value for alpha (a) the temperature coefficient of resistivity?

Math

I have a work sheet on probabilities. IMPOSSIBLE (0) UNLIKELY (1/4) EQUALLY LIKELY (1/2) LIKELY (3/4) CERTAIN (1) I have to write at least two things under each listed, and I don't know how to do this

Social Civics

Today a worker's right strike A. cannot be limited in any way B. is not legally reconized under any circumstance C. can be limited by injunction under certain circumstances D. none of these

Critical Reading

An argument is a message that is being sent with the purpose of persuading us to accept certain information true or false. I would say true. Would that be right?Thank you!

statistics

The table below shows the number of girls who ran certain distance. -------------|---|----|---|----|----|--Distance(Km) | 5 | 10 |15 | 20 | 25 | -------------|---|----|---|----|----|--No. of girls | 2 | 1 | 3 | 4 | X | -------------|---|----|---|----|----|-- Given that the ...

chemistry

A certain substance has a heat vaporization of 47.97 kJ/mol. At what Kelvin temperature will the vapor pressure be 7.50 times higher than it was at 297K? Please help me! I don't understand heat vaporization questions

College Algebra

The number of Mosquitoes M9x), in millions, in a certain area depends on the June rainfall x, in inches:M(x)=19x-x^2. What rainfall produces the maximum number of mosquitos?

Biology

Some genes are said to be “linked”. Explain this term and the implications it has as to the inheritance of certain traits. Provide 2 (human) examples of linked genes? PLEASE HELP ITS A REQUEST

Math

A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and be certain that you have three of the same color?

math

A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and be certain that you have three of the same color?

Mathematics

A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and be certain that you have three of the same color?

Mathematics

A jar has eight red, nine blue, and ten green marbles. What is the least number of marbles that you can remove from the jar and be certain that you have three of the same color?

physics

A certain transverse wave is described by the equation y(x,t) = (6.50 mm)sin2pi((t/0.0360 s)-(x/0.280m)) Determine the wave's (a) amplitude (b) wavelength (c) frequency (d) speed of propagation and (e) direction of propagation

7th grade math

how do I solve for this: If 5/6 is divided by a certain fraction, a/b, the product is 1/4. What is the fraction a/b? Ans: (5/6)/(a/b) = 1/4 = do i need to divide both sides by 1/4 to get (5/6)/(1/4) = (5/6)x(4/1) = 20/6 = need to somehow get a/b by itself not sure what to do...

Philosophy

Are humans "blank slates" when they enter this world or do we as humans come into the world with certain truths or idea (whether logical, mathematical, scientific, or moral)?

physics

the tires of a certain car begin to lose their grip on the pavement at acceleration of 5 m/s to the power of 2 if the car has this acceleration , how many seconds does it required reaching a speed of 25 m/s starting from 10 m/s?. Please help me

CHEMISTRY

If He(g) has an average kinetic energy of 4190 J/mol under certain conditions, what is the root mean square speed of Cl2(g) molecules under the same conditions?

maths

you have eight $1coins and five $2 coins in your pocket. What is the smallest number of coins you need to take out of your pocket to be certain of having atleast one of each coin?

plane geometry

a solid has a circular base of radius 20cm. find the volume of the solid if every plane section perpendicular to a certain diameter is an equilateral triangle

plane geometry

a solid has a circular base of radius 20cm. find the volume of the solid if every plane section perpendicular to a certain diameter is an equilateral triangle

math check please

Find the median of the following set of numbers 45,21,54,22,65,61 Answer 49 1/2 2. find the mean and the median of the set of grades 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94 Answer mean 83 median 82 3. find the mode of the following numbers 11,10,6,11,12 Answer 11 4. Find ...

math

How do I write one equations in slope-intercept form, and three other lines in slope-intercept form that are perpendicular to the first line ?? -- one line: y=mx+b second line perpendicular y= -x/m + c of course, you have to know m, b, c. ----- for the second line ...

French help please!!!

Match the correct form of the ver être with the subject pronoun. A. sont B. êtes C. es D. suis E. est F. sommes 1. nous 2. tu 3. vous 4. ils 5. on 6. je 24. Nous sommes intelligents. This sentence tells us: I am smart. He is smart. We are smart. You are smart. 25. La femme ...

english/quote

"human beings in their thinking, feeling and acting are not free but are as casually bound as the stars in thier motions." -Albert Einstein ok i was wondering what this means...maybe that humans follow a certain path of the people before them? idk please help thanks

Into to LAN

• Explain how you would create the users for the sales organization unit and how to set up work groups in this particular situation. Keep in mind that you may have to name certain applications and allowable tasks for each individual or job role.

Statistics

On average 3 % of a certain type of TV tube burn out before their guarantee has expired. If a merchant sells 120 such tubes, find the probability that he will be forced to replace at least 3 of them (Use the Poisson approximation to the Binomial distribution).

Math

The average amount customers at a certain grocery store spend yearly is $784.39. Assume the variable is normally distributed. If the standard deviation is $76.15, find the probability that a randomly selected customer spends between $712.05 and $932.88.

Physics

a) Rain drops hitting the side window of a car in motion often leave diagonal streaks if there is no wind. Why? b) For a certain projectile, the horizontal range is twice in magnitude of the maximum height attained by it. Find its angle of projection.

PED

I have a quiz and want to check them out to see if I got them correct: Question 1. When is it considered safe to provide both positive and negative examples of performance to students? (Points : 1) when the learners understand the skill when the learners have practiced the ...

Chemistry. Please help!

A 20.29 g sample of impure MgCO3 is completely decomposed at 1000oC in previously evacuated 2.0 L reaction vessel. After the reaction was complete the solid residue had a mass of 15.9 g. Assume that only MgCO3 could produce gas CO2 what percent of original sample was magnesium...

Math

1. Find the next number in the pattern. -1, 3, 7, 11 a. 16 b.77 c.15 <------- d.13 2. Name the property of real numbers illustrated by the question. -2(x+4)=-2x-8 a.Associative prop of multiplication b. commutative prop of addition c. distributive prop <--------- d. ...

Art

Could you please check scientific English in this short dissertation? Thank you, Ms. Sue. 1) Conrad Waddington introduced the term epigenetics in the early 1940s. He defined epigenetics as ‘‘the branch of biology which studies the causal interactions between genes and ...

calculus

I need help with the following question: Which of the following is an example of a function whose derivative is always 3? Choices are: f(x) = x=3 f(x) = 5x+3 f (x) = 3x+5 f(x) = 3 Thank you.

History

Why did Jews feel entitled to claim Israel last there nation following following World Word 2

Pre-Calculus

Which of the following shows the correct first step to prove the following by mathematical induction? 3 + 11 + 19 + 27 + … + (8n - 5) = n(4n - 1) A. 3 + 11 + 19 + 27 + … + (8 • 1 - 5) = 1(4 • 1 - 1) B. 8 • 1 - 5 = 1(4 • 1 - 1) C. 3 + 11 + 19 + 27 + … + (8k - 5...

physics

When a 4.48 kg mass is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.68 cm. How much work must an external agent do to stretch the spring 3.96 cm from its unstretched position?

PHYSICS!!!

A certain fluid has a density of 1045 kg/m3 and is observed to rise to a height of 2.4 cm in a 1.0-mm-diameter tube. The contact angle between the wall and the fluid is zero. Calculate the surface tension of the fluid. Answer in N/m

Chemistry

Calculate the value of Kp for the equation C(s)+CO2(g)<->2CO(g) Kp=? given that at a certain temperature C(s)+2H2O(g)<->CO2(g)+2H2(g) Kp1=3.33 H2(g)+CO2(g)<->H2O(g)+CO(g) Kp2=.733 Please show detailed steps.

chem 12

consider the following equilibrium 2NOCl(g)--- 2 NO(g) + Cl2(g) Initally 1.00 mol of NO and 1.00 mol of Cl2 are placed in a 5.00L container. Calculate the initial concentrations of NOCl, NO and Cl2 NO= 0.20 mol/L Cl2= 0.20 mol/l NOCl=0 At equilibrium it is found that the NOCl...

essay writing

Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made that choice. Subject-...

Math

The sun of a certain number and 3 times the number is 40. What is the number?

6th Grade Science check please

Why can certain stars sometimes be identified as eclipsing binary stars? A-brighter than any single star B-are all white dwarfs C-become dimmer at regular intervals*** D-cool red stars I'm pretty sure I have the answers correct but would like someone to check so I'm sure. This...

science

I need a little assistance. Can you help? The question which seems to be simple enough is What is a physical change? My son answered - A physical change is any change that alters the form or appearance of matter into a different substance. I do not agree. He is missing ...

Statistics

1. A human gene carries a certain disease from a mother to her child with a probability rate of 0.58. That is, there is a 58% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has five children. Assume that the infections, or lack ...

French - SraJMcGin

Thanks for your help with the last exercises. But Im still sort of confused with the Superlative stuff. For the excercises yesterday. Le film, Inception est le plus interessant au Canada. The teacher corrected this sentence to: Inception est le film le plus interessant au ...

AP Chem

2) For a theoretical yield of 19 g and actual yield of 11 g, calculate the percent yield for a chemical reaction. Answer in units of %. 11 g / 19 g times 100 = 57.89% in your 2 sigfig problem, you might be expected to round off to 58% ======================================... ...

french

What are the form of er verds

engineering

wat is the SI form? a)Mg/mN B)MN/(kg*ms)

science

what is a rainbow? how does it form?

science

how does a hurricane form?

Math

what is the "expanded" form of ln[x2(x-2)/(x+1)]?

Chemistry

Why do ions form?

math

simplest form [9-b^2]/[b^2-b-6]

science

How do diamonds form?

visual

how colour is form?

Biology

What is definite form?

Math

what is the simplest form of 6/15, 15/60,and 78???????

algebra

How do you do standard form

science

how does a solution form?

math

what is 18/21 in its simplest form

algebra

what is 2x^2-2=-5x-1 in standard form?

math

20/36 in simplest form

math

Is 5/7 in simplest form

arithmetic

0.2 in extended form

math

1,2,4,8,16,32,64 in exponential form?

algebra

in simpleast form, 2x(4x^2-5)-(7x^3 +3x)

arithmetic

is 1/8 in the simpelest form

math

what is 13 and 21/20 in simples form ?

math

1/2 + 2/5 in simplest form?

Math

What is the standard form of y+2=1/2(x-4)? a. x=2y=0 b. x-2y=8 c. 2x-y=10 d. -3x+2y=0

algebra

How do you get : x=1/3y+2 in the y=mxtb form ?

Math

How do you get : x=1/3y+2 in the y=mxtb form ?

Math

what is the simplest form of 16/19

math

what is the simplest form of 2 2/5?

Math

How do you put 7x= 3y-12 in y=mx+b form?

algebra

what is 2x+3y=-5,3x+5y=-9 in substitution form

calculus

write it in the form of a+ib (1+i)^2 (1-i)^3

science

how do hurricanes form?

Algebra

Simplest form of (X^[-2/5] Y^[1/3])15

english

you can help me in plural form

english

you can help me in plural form

math

what is the fraction form of 5.1

math

Is f(x)=4x/x-1 in factored form

oceanography

how did the ocean form?

math

what is the word form for 0.34

math

what is 13/14 in simplest form?

algebra II

What is the simplified form of y^2 - y - 12 / y^2 + 8y + 15

algebra

what's the simplied form of (5m^-4n^2)^3

math

what is the simplied form of (5m^-4n^2)^3

Trigonometry

what is the trigonometric form of z=1+i?

math

what is 1/7 + 2/4 in simplest form

math

12/25 x 5/21 in simplest form

Math

4 x 2/3 in simplest form

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