Answers by visitors named: Charles

shouldn't you be the one telling me that.?

Gasoline: 737.22 kg/m3 Ethanol: 0.789 g/cm³

whys does it floats on gasoline and not ethanol?

thanks very much!

Than you for your help

So to figure out maximum friction force possible without sliding, that's the product of the 23lb block and the static friction of .6. that will be A? Then I'm not sure what to do next

B and C are on the same shaft

Thank you

thank you

I know the velocity would not remain the same but if it did what would the answer be

Thank you

Thank you

If Vmax is 18V and Vmin is 6V what is %m,Vc,Vm,Vusb,Vlsb

drwls: thanks for your help. would you mind explaining how you used that identity to set up the new problem? i get the chain rule but i had no idea that sin2xcos2x was equal to 1/2sin4x. thanks again.

This is how I'm doing part A. I'm told it's the wrong answer, but I can't figure out what I'm doing wrong. I'm hesitant on going to parts B and C until I understand part A. Part A: Step one: I changed the mols of Al to grams. 13.9mol Al * (26.9815g Al / 1mol Al) = 47.2176g Al Step two: I plugged the numbers into the Q = s * m * change in T Q = (0.902 J/g*C)(47.2176g Al) ( 641C) Q = 27300KJ = 2.73 * 10^4KJ So the answer to part A is 2.73*10^4kJ Again, I'm told I'm wrong here. Any help would be appreciated thanks!

Forget it... I got it thanks!!!!!

whats the answer to define the components of culture.

3-9/x/x-8+15/x

Also doesnt the cos45 = sqrt2/2 not 1/sqrt 2?

The WPA was paid for by posting US Bonds with the phrase "Reinvest in America" Couldn't the money now spent on unemployment and job retraining be so much better spent on a new version of the WPA than simply paying unemployed people a check every week for nothing in return?

The median and mode are the same which is 12 yrs old. Median is the mean of the middle two values if there are an even number of students. So the number of students is 28 (which is even). So the middle two numbers are both 12 because the student who is not 12 is either younger or older therefore that age would not be a middle number. So the median is (12+12)/2 =12 yrs old. The mode is the number or numbers that occurs most often. In this case that number is 12. So the mode is 12 yrs old.

P=4.(17)^1/2

Solution.Tn=ar'n-1 where n=3

1.DISCUSS THE NATURE OF CORRUPTION BY PUBLIC OFFICERS 2.DISCUSS THE CAUSE OF CORRUPTION BY PUBLIC OFFICERS 3.FORMS BY PUBLIC OFFICERS 4.means of eradicating controling corruption in public establishment.

Q=12,914.805 cal

5/4 or 1 1/4 since when you divide fractions you multiply by the reciprocal

Figured it out 5 cents

I only need help with parts c) and d)

Express 0.000093 in scientific notation. Can anyone help?

Efficiency is "Efficiency = (useful work output / work input)" So the problem would look like: EC = (40/100) Divide 40 by 100, and you get 0.4 - which is 40%.

I don't understand the flow in the math here. Please help me understand this solution by "dumbing it down" a bit.

Thank you for that. I don't understand the rule for "Cy/Cx = 5/6.5; if Cx = 6.5k, then Cy = 5k." I also realize that your solution doesn't match my book's solution. Here's the step by step from the book that I'm not understanding either, perhaps someone can suggest a rule I can review for this type of problem: The target variables are the components of C. We are given A and B. We also know A⋅C and B⋅C, and this gives us two equations in the two unknowns Cx and Cy. A and C are perpendicular, so A⋅C = 0. AxCx + AyCy = 0, which gives 5.0Cx − 6.5Cy = 0. B⋅C = 15.0, so −3.5Cx + 7.0Cy = 15.0 We have two equations in two unknowns Cx and Cy. Solving gives Cx = 8.0 and Cy = 6.1. We can check that our result does give us a vector C that satisfies the two equations A⋅C = 0 and B⋅C =15.0.

Just saw the flaw. -2.5 in vector B should be -3.5. This has had me stuck for too long.

spring scale

I can't. This is how my math teacher put in the question. Its confusing, right? Its just messed up. I was just hoping if someone can plug in the fraction. If I saw how it looks when its all plugged in I might get it.

16,252.06

yes I am ask for an example please Ms.sue

yes please

but how do you get the right amount of mL? I did: 2.46x10^25 Cl atoms x 1 atom/4 atoms x 1 mol/6.02x10^23 x 154 g/1 mol x 1 mL/2.71 g And the correct answer is apparently 572 mL when I got 581 mL.

6739.2

nah dude its Q

(V1/n1)=(V2/n2) (5.12÷7.51)=18.3÷n2 n2=26.84mol

Answer should be 5,700

God bless you

Stationery #84 000 ;sports equipments #262 000;computers #672 000; school lockers #157 500.

I don't really get you scott

Am I to substitute it this way 2[5(sin2)]/9.8.? Or will I make use of tan instead, since tan=2

just 20oN

How do you get 0.657 mols? I solved for x and got 0.6529 mols

Here is my work and I keep getting the hundredth value to be incorrect: 10^-4.5 = [1.8E-5 (1.8-x)]/x 10^-4.5 = [3.24E-5 - 1.8E-5]/x 10^-4.5x = 3.24E-5 - 1.8E-5x 4.96E-5x = 3.24E-5 x= 0.653

Use the formula, that will help you out.

W=f (s2- s1 -s3)

195%

Two committees, one with six and one with seven people, with no one person serving on both committees at the same time. In how many ways can this be done.

Beauty spot

Where does 100 come from?

Steve, if you can, look at the answer given to me by Chegg. It is much more explanatory how 100 comes from than from what you wrote and just told me? 100 is not in the initial problem, so how am I to assume 100 is part of it? The only number given to me is 1%.

I don't know the answer

Net work is basically the area inside the closed loop

yep! and its 2017. :)

Sorry the word is "format ". I chose fiction and nonfiction

This is what my text says. "Standards for nonfiction and biography should be applied as rigorously as standards for fiction." I'm totally confused

we don't want to do all that work if we can find it online. Thats what the internet is for, finding math homework online

0.071 to 0.128

Estimate the rise in temperature of the brake discs in a car of mass 1200g,travelling at 30m/s which is brought to rest by the application of the brakes alone,the brake disc have a total mass of 5kg.Assummed that there is no heat loss and that the material of the 4 brake disc has a specific heat capacity of 800j/kg/k

You're wrong

log exponentlogbase5and17

1.5x6.02x10^23=9.03x10^23 (3 sig. figs. as in 32.4) is the correct answer.

@oobleck, that is wrong, when I input it into the system, it said wrong

@oobleck, there is a larger value to the equeation

No, in inputted it into my thing, and it said wrong

So whats the answer

Input it into a latex converter, and u will get your thing

It says who will earn the most...

@oobleck, can you solve it, and just tell me the answer?

I need the answer fast, can you just show me the answer please?

Perimeter of Common Plane Figures 1. Triangle P = a + b + c P = 3s (equilateral) 2. Square P= 4s 3. Rectangle P = 2l + 2w or P = 2(l + w)

Oobleck thank you so much this is twice today

Answer

Good

Marcos pieces are each 1' 7"inches (which is irrelevant to the final result). Maria started with 8 pieces @ 2' 7" which equals 20' 8". Ergo Maria's string started 8' longer than Marcos was.

-Whole Quiz- Which of the following is necessary for plants to exhibit phototropism: auxin A vine growing around a lamp post is an example of: thigmotropism A tree that sheds its leaves in the fall is exhibiting: photoperiodism Students planted three bean seeds. After several days, they observed that the seeds’ roots were growing downward into the soil. Which type of tropism were the roots displaying: geotropism As the nights get longer and the temperatures become cooler, some plants: enter a state of dormancy, or inactivity

-Whole Quiz- Which of the following body systems detects a stimulus and creates a response: nervous system Enzymes belong to a group of organic compounds called: proteins Dormancy helps plants survive freezing temperatures and lack of: water If an animal is an ectotherm, it has: a body that does not produce much internal heat. An animal that has a backbone is called a(n): vertebrate Major functions of animals include obtaining food and oxygen, keeping internal conditions stable, movement, and: reproduction Which of the following organelles is the control center of a cell: nucleus The invention of the microscope made it possible for people to discover: cells Which of the following body systems helps animals get rid of waste: excretory system Which of these animals has radial symmetry: a sea anemone The movement of water molecules from an area of high concentration to an area of low concentration is called: osmosis Animals with radial symmetry get information: from all directions. Which of the following provides support and protection for many insects: exoskeleton Which of the following are outputs of the process of photosynthesis: food and oxygen At some point in their lives, all chordates have a flexible supporting rod in their backs called a: notochord What are the two gases that animals exchange with their surroundings?: carbon dioxide and oxygen Suppose that you swat at a bee, and it stings you. Jerking your hand away from the bee is a: reflex What is the function of a cell wall: to protect and support the cell Which of the following are inputs for the process of photosynthesis: energy from the sun, carbon dioxide, and water

Water availability and temperature distinguish land biomes as *salt concentration* distinguishes aquatic biomes.

Which of the following describes an example of a potentially invasive species? *Fruit covered with fruit fly eggs is trucked from Mexico to Canada*

Which abiotic factor is essential to all aquatic ecosystems except ocean hydrothermal vents, and why? *sunlight, because it provides a source of energy*

Which of course he following characteristics of the arcitic rabbit is specfically an adaptation to living in the tundra? *white fur*

Which set of words below could be used to describe the dispersal of seeds to a new region? *wind, water, animal feces*

A plant native to a desert in the Southwest U.S is transplanted to the tundra region. The plant dies a few weeks after being moved. Which of the following factors in its new location could have been critical to its inability to survive the move? *temperature*

What is the major difference between ectotherms and endotherms? *whether or not the animal maintains a constant body temperature*

Which of the following is true about producers? *They are essential to all ecosystems*

How will the rate of bubble formation compare in three samples? *A>B>C*

Which of the following illustrates the energy changes taking place during photosynthesis? *light energy from sun -> chemical energy in bonds of glucose *

Early Chinese rulers established *dynasties* by conquering and uniting kingdoms under the rule of one emperor. From 624 to the early 1100s, the *Tang and Song* ruled over a golden age of prosperity before the Mongols invaded

*North Korea* is a command economy, *Japan* and *South Korea* are market-based economies, and *China* is a command economy with limited market reforms

In which nation did a nationalist military regime lead the country to invade its neighbors and help launch World Was ll? *Japan*

After 1945, a civil war in China led to the rise of a *communist* government there

*Christianity* is especially strong in South Korea *Islam* form a majority in many northwestern Chinese communities *Shinto* the majority of Japanese follow this belief Most East Asians adhere to *Buddhism*

Most people in China and Taiwan belong to what ethnic group? *Han*

North = Gobi East = coastal plains, fertile river valleys West= Himalayas