# Posts by Abby

Total # Posts: 1,168

**Physics**

Five people talk simultaneously. If the intensity level is 70 dB when either one speaks alone, what is the intensity level when both speak at once?

**Physics**

Find the beat frequency produced by an 686 Hz source and an 894 Hz source.

**Health**

With Which Which type of friends do you keep your personal feelings secret

**Physics**

im still very confused

**Physics**

A water pipe is inclined 31.0° below the horizontal. The radius of the pipe at the upper end is 2.00 cm. If the gauge pressure at a point at the upper end is 0.122 atm, what is the gauge pressure at a point 2.70 m downstream, where the pipe has narrowed to a 1.00 cm radius...

**Physics**

Water is ejected from a garden hose of radius 1.06 cm at a speed of 5.19 m/s. Find the flow rate through the hose.

**Physics**

Find the displacement in cubic meters of a boat weighing 4710 N.

**Physics**

A watertight car is submerged under water. What force is required to open a door of area 1.04 m2 if the average depth of water at the door is 1.56 m?

**Spanish **

What is the heritage of many of the students at Miami High School? Explain why so many students of this heritage are at Miami High School.

**Physics**

Compute the linear momentum and angular momentum of a Frisbee of mass 0.141 kg if it has a linear speed of 2.35 m/s and an angular velocity of 55.0 rad/s. Treat the Frisbee as a uniform disk of radius 15.5 cm.

**Math**

So would A be something like 56+4? And B would be 10x6. I believe C would be something like (5+5) x 6 = 60. Am I correct?

**Math**

A. Write 60 as the sum of two numbers. B. Write 60 as the product of two numbers. C. Write 60 as the product of two factors. In youe expression, write one of the factors as a sum of two numbers. Find an equivalent way to write this expression.

**math**

find the value for x?? please help: x+8=21, x-32=55,3x=54,x/5=10?????!!!!

**math**

thanks!

**Physics**

Two hockey players strike a puck of mass 0.168 kg with their sticks simultaneously, exerting forces of 1.16 103 N, directed west, and 9.90 102 N, directed 30.0° east of north. Find the instantaneous acceleration of the puck.

**Chemistry**

Thanks!

**Chemistry**

How many N atoms are there in 0.410 mol of NH3? Would it simply be 0.410 x 6.02x10^23?

**Chemistry**

No I was not given the density value.*

**Chemistry**

No I was not given the density value? What is recommended to go from mL to moles instead?

**Chemistry**

For an experiment, we used 10 mL of HCl. We are then to find the moles of it without any other information given. Is this right? (10 mL HCl)* (1.19 g / mL) = 11.9 g HCl (11.9 g HCl) * (1mol/36.46064 g) = 0.326 mols HCl

**math**

the cost of downloading one song from a website is $.99. what equation can be used to find t, the cost in dollars of downloading n songs?

**science**

A 1600kg car starts at rest and reaches 40 m/s in 6 seconds. I need to find: a) the change in kinetic energy b) work c) distance d) applied force of the engine

**math neeeeed help plez help only for steve**

Hey Steve, I got 6/8 75% on my math test!!! I do cyber. I guessed on the ? I asked and was right... all the rest I knew!!!!!!!!!!!!!!!!!!!! Just thought u should know that... + I hope u didn't think I was ignorant in the last post I posted. Have a great night :D

**math neeeeed help plez help**

hi Steve, No I meant what out of the 4 answers r correct. I don't know what u mean. + THATS HOW IT WAS WRITTEN ON THE HOMEWORK PAGE. thanks though.

**math neeeeed help plez help**

trapezoid ABCD is congruent to trapezoid EFGH. Which statement is true. A- B= 15cm D-C 9cm A. side EF is 15cm B. side GH is 9cm C. side EF is 9cm D. the height of trapezoid EFGH is 9cm

**mATH..OHHHH NOOOOO PLEZ HELP I AM STRUGGLING **

Which statement is true? 1. all rectangles are squares 2. some trapezoids are parallelograms 3. all squares are rhombuses 4. no rhombuses are rectangles. Please help me. I need this done and fast. Mom don't know answer so I'm counting on you to help me. Thank you so ...

**Math**

A rectangular prism has a length of 20 in., a width of 2 in., and a height of 3 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How many cubes are needed to fill the rectangular prism? Can you help????

**Math :(:( Totally stressing ouuut ned help now.**

What are all the possible ways to transform the letter V in a single transformation so that its point is up rather than down: 2 answers A. Translation B. Reflection C.Rotation

**Social Studies**

<3Scocial Studys<3 is right I got a 100% THANKS

**American Government**

7. Which of the following six organizing principles are evident in Articles I – III of the U.S. Constitution? Select all that apply. A. Limited government.*** B. Separation of powers. C. Judicial review.*** D. Checks and balances. 8. Which of the following did the ...

**American Government**

5. A?

**American Government**

5. Which of the following is an example of checks and balances in government? A. Congress can override a presidential veto by a two-thirds vote in each house. B. The legislature and judiciary work together to enact legislation. C. The president appoints the members of the ...

**American Government**

4. D?

**American Government**

Btw it is supposed to be hitherto FRUSTRATED. Sorry about typo.

**American Government**

3. Which philosophers of the European Enlightenment influenced the founding documents of American government through their theory of social contract? A. Michel de Montaigne and Denis Diderot B. Charles de Montesquieu and Mary Wollstonecraft C. Thomas Hobbes and John Locke*** D...

**American Government**

1.B?

**American Government**

I want to see if my answers are right. Here are just a few for now. 1. Which statement accurately explains the key difference between the divine right of kings and a constitutional government? A. The divine right of kings and a constitutional government are based on the idea ...

**hisory help asap**

C A D B C C D C B A

**Econ**

In the table, there should be 6 columns... the numbers line up but its hard because it's slightly moved here. Hope someone can help!

**Econ**

Washington's Production Possibilities Table (in tons) Product: A B C D E F Apples: 40 32 24 16 8 0 Bananas: 0 4 8 12 16 20 Oregon's Prudction Possibilities Table (in tons) Product: A B C D E F Apples: 75 60 45 30 15 0 Bananas: 0 5 10 15 20 25 Based on the table above...

**Econ**

please anyone help!!! Really stuck!

**Econ**

given the following information, calculate nominal GDP, real GDP, and the percentage increase in year two. Be sure to label the answers. Describe what is taking place in the economy. In the base year, 10 new cars were sold at $7,000 each, 20 new office chairs at $1500 each. In...

**Algebra**

Nvm, I figured the answer out myself, thx for your help.

**Algebra**

I really need this answer ASAP, if possible.

**Algebra**

I know the answer of x/x-2 + x-1/x + 1; but I do not know how to explain it in words. The answer is x = 0,1, when I solve for x.

**English Language Arts**

An exam for English 10, may I post it?

**English Language Arts**

Has anyone done the English semester exam? I am confused with the essay question. I chose prompt a, can anyone simplify this for me, by giving me different questions that I need to answer for this question?

**Language Arts**

I did only have a few, and these ones are confusing me..... It is only 13/56....Can you please go through all of them?

**Language Arts**

I am having a trouble with a few questions. 4. Which of the following sentences from “Poor Fish” does not support the story’s theme of self-loathing and inferiority? A. “But I looked upon myself as being as fragile as glass, as the thinnest glass, in fact, ...

**American Government**

Thanks Bobpursley.

**American Government**

I am having difficulty completing the following essay questions..... Explain the purpose of THE FEDERALIST PAPERS and their effect on American founding documents. What are standing committees in Congress? What duties and functions do they perform? Include examples from the ...

**American Government**

Thx.

**American Government**

The trial of a person charged with a federal crime, or a suit involving the infringement of a patent or a copyright, or one involving any other matter arising out of an act of congress is....within the...jurisdiction of the federal courts. A. Concurrent jurisdiction. B. ...

**Health**

Anonymous thats really mean ill tell u them Kailyn they are 1.d 2.a 3.a 4.b 5.a

**Organic Chemistry**

Hello! I was looking for some advice on my organic chemistry lab. We were supposed to separate and identify a solid mixed into a liquid. I found and have confirmed my liquid is acetone by distilling it out of the solid. The solid then turned into a whitish powder while in the ...

**Algebra 1B**

Ohhh yea.

**Algebra 1B**

I think D would be the answer.

**Algebra 1B**

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = -0.04x^2 + 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above ...

**physics**

i know the answers but i don't know they process

**physics**

2. A wooden block slides directly down an inclined plane, at a constant velocity of 6 m/s. a. How large is the coefficient of kinetic friction if the plane makes an angle of 25º with the horizontal? 0.466 b. If the angle of incline is changed to 10º, how far will the...

**Math 6A unit test**

What is the value of the blank in this question? 6/5 divided by ______ = 6

**Calculus**

Find the average value of the function defined by f(x)= x^2 sin 3 x^3 on the interval [0, 3rd Root (pi)]

**Chem**

What is the pH of .1M: FeSO4 Na2HPO4 NaH2PO4 NaF

**heath**

Whats the answers

**Calculus - Differential Equations**

Use separation of variables to find the solution to the differential equation: 4 (du/dt) = u^2, subject to the initial condition u(0)=6. So far, I have: 4 du = u^2 dt 4/u^2 du = dt -4/u = t+C I am unsure what to do from this point...

**science**

Ms. was definitely right i got 100% too

**physics**

You are driving at the speed of 34.3 m/s (76.7433 mph) when suddenly the car in front of you (previously traveling at the same speed) brakes. Considering an average human reaction, you press the brakes 0.429 s later. Assume that the brakes on both cars are fully engaged and ...

**Math**

A certain person burn 6.5 calories per minute while walking how many calories will be burned if that person wants for 3 hours round your answer to the nearest tenth

**Physics**

A loudspeaker of mass 16.0 kg is suspended a distance of h = 2.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.90 m What is the tension T in each of the cables? Use 9.80 m/s2 for the magnitude of the acceleration ...

**Physics**

A car starts from rest on a curve with a radius of 150 m and tangential acceleration of 1.5 m/s2 Through what angle will the car have traveled when the magnitude of its total acceleration is 3.0 m/s2 ?

**Physics**

A circular track has several concentric rings where people can run at their leisure. Phil runs on the outermost track with radius rP while Annie runs on an inner track with radius rA = 0.90 rP. The runners start side by side, along a radial line, and run at the same speed in a...

**Physics**

A skateboarder starts up a 1.0-m-high, 30∘ ramp at a speed of 7.2 m/s . The skateboard wheels roll without friction. At the top, she leaves the ramp and sails through the air. How far from the end of the ramp does the skateboarder touch down? Express your answer with the...

**Chemistry**

idk

**English**

C A B B C

**math**

a cheetah can run 170 meters in 6 seconds at this pace how far would she go in a minute

**Math**

what is the width of a rectangle with a perimeter of 70 feet and length-to-width ratios of 3 to 4,4 to 5 and1to1

**Geometry**

If B is the midpoint of segment AC and C is the midpoint of segment AD, what is AD if CD = 9. I think AD = 18, but not sure.

**Chemistry**

If a 29.9 g sample of the liquid cyclohexane has a volume of 38.6 mL, what is the specific gravity of the compound? Take the density of water to be 1.00 g/mL.

**physics**

a charge of 6mC is placed in each corner of a square 1m on each side. determine the magnitude and direction on each side

**Math**

A farmer has 400 feet of fencing with which to build a rectangular corral having two internal dividers both parallel to two of the sides of the corral. What is the maximum total area of such a corral? I know how to maximize area, but this problem is confusing me because of the...

**Chemistry**

Why are the molecules of hydrocarbons nonpolar? The intermolecular attractions are strong. The electron pair is shared almost equally in all the bonds. All the bonds are single covalent bonds*** Van der Waals forces overcome polarity

**Chemistry**

Balance the following redox equation using the oxidation number change method. Describe each step that is involved Al(s) + PbSO4 - - > Al2(SO4)3 + Pb(s)

**English**

The title "another evening at the club" is close in meaning to "just another evening at the club" given the events of the story, what is the significance of this meaning? I need help explaining this. I have no idea how to word it

**Math i dont understand**

u have them all right

**Physics**

What is the wavelength of a 26250 Hz tone in air? The speed of sound in air is 340 m/s.

**Physics**

A rock dropped into a pond produces a wave that takes 15.9 s to reach the opposite shore, 31.8 m away. The distance between consecutive crests of the wave is 3.1 m. What is the frequency of the wave?

**physics**

Consider a star with a mass of 8.7 x 1031 kg. Determine the radius of the star if a typical star has a density of 1400 kg/m3.

**Math**

The scariest dining of requip there are 450 students and 50 on each School Bus. How many buses are needed to take in the trip? If 10 more students decide to come, how many buses do you need then?

**Language arts**

I know I suck a lot!

**Language arts**

Jiskha is not for people to do the work for you and tell you the it is to help you hints the name jiskha homework help. he did help herror by giving her the definition of the word she can use it to find the most reasonable answer

**Physics**

Okay, so I just realized that the number of loops is only one, so I can still use the equation I was thinking of. Sorry about that!

**Physics**

A wire loop of radius 0.165 m lies so that an external magnetic field of strength +0.24 T is perpendicular to the loop. The field changes to −0.32 T in 0.759 s. Note: The plus and minus signs here refer to opposite directions through the coil. Find the magnitude of the ...

**US HISTORY**

Which of the following best describes the Cherokee's main argument in the Cherokee Nation v. Georgia case? The Cherokee testified that U.S. officials had unfairly tricked them into giving up their land. The Cherokee argued that because they lived in the territory first, ...

**history**

What was the main result of the invention of the Clermont in 1807? This steamboat built by Robert Fulton helped speed up industrialization and increase interest in canal and river transport. This passenger train built by Henry Ford provided immigrants an easier way to move ...

**us history**

Which factor contributed most to the U.S. acquisition of Florida in 1819? the defeat of Great Britain in the War of 1812 U.S. military victories in Florida during the 1810s Spain's loss of control over its South American territories territorial disputes between ...

**history**

What effect did Samuel Slater's actions have on the U.S. economy? Tariff revenues on imported clothing increased. The efficiency of American textile production increased. The price of clothing produced in the United States increased. Wages for workers in the textile ...

**us history**

A benefit from the expansion of New England's textile industry was increased worker benefits. lower demand for slaves. reduced number of exports. savings in time and money. i think it is d

**us history**

1. Why did the United States push for control of the Oregon Country? increased American settlement in the Pacific Northwest increased threat of British attacks on the Louisiana Territory discovery of gold in the Rocky Mountains need for more territory north of the ...

**algebra**

There are many measurements of the human body that are positively correlated. For example, the length of one's forearm (measured from elbow to wrist) is approximately the same length as the foot (measured from heel to toe). They are positively correlated because, as one ...

**Chemistry**

At STP potassium chlorate (KClO3) decomposes to produce solid potassium chloride (KCL) and oxygen gas (O2) according to the balanced chemical equation: 2KClO3(s)->2KCl(s)+3O2(g) What volume of oxygen gas, measured at 40 degrees celsius and 85.4 kPa, will be produced when 13...