# seth

Most popular questions and responses by seth-
## English

Based on events in Chapter 8, what can the reader most likely conclude about the relationship between Moon Shadow and the boys in the tenement house?

*asked on May 6, 2019* -
## Chemistry

Consider an alloy that is 14.1% copper by mass in tin. Copper makes up what percentage of the atoms in this sample?

*asked on February 12, 2017* -
## chemistry

In which one of the following processes is ΔH = ΔE? a. 2HI(g) → H2(g) + I2(g) at atmospheric pressure. b. Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm. c. H2O(l) → H2O(g) at 100°C at atmospheric pressure. d. CaCO3(s) →

*asked on August 15, 2009* -
## advancing vocabulary skills third edition

i need help on sentence check 2 and final check chapter 1

*asked on September 1, 2016* -
## Physics

A 0.30 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20 kg puck that is initially moving along the x axis with a velocity of 2.8 m/s. After the collision, the 0.20 kg puck has a speed of 0.5 m/s at an angle of θ = 53°

*asked on October 23, 2011* -
## Spanish

I have some reading responses questions and answers to the play “La dama del alba”, I was hoping someone could edit my answers. The first answer is a paragraph summary of the first ten pages. The other questions are just short answer. I mostly want to

*asked on February 2, 2017* -
## chemistry

Is this a buffer system? NH3/(NH4)2SO4? It is formed by mixing NH3 (weak base) and a strong acid (H2SO4), but according to my worksheet it is not a buffer system. Why is this so? Isnt it a buffer as long as it consists of a weak base and its salt of a

*asked on January 13, 2011* -
## math

ABCD is a square and P, Q are the midpoint of BC, CD respectively .if AP =a and AQ=b, find in terms of a and b , the directed line segments (i) AB, (ii) AD , (iii) BD and (iv) AC

*asked on October 12, 2017* -
## hhs

Instructions:Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each set of vertices with the type of quadrilateral they form. Tiles A(2, 0), B(3, 2), C(6, 3), D(5, 1) a parallelogram with nonperpendicular adjacent sides

*asked on June 27, 2016* -
## math (challenging)

If R is the remainder when each of the numbers 1059, 1417, and 2312 is divided by D, where D is an integer greater than 1, compute the value of D-R

*asked on September 30, 2009* -
## biochemistry

how many grams of tris and tris Hcl are needed to make up 500ml of 1m tris buffer with a pH of 0.8?

*asked on March 30, 2019* -
## intermediate math

angie and payton jog of opposite each other and angie can jog 4.5 mile faster than payton. after 1.5 hours they are 17 miles apart. how much can each person jog

*asked on September 29, 2014* -
## calculus

find the work done in winding up a 175 ft cable that weighs 4.00 lb/ft?

*asked on November 28, 2011* -
## physics

"A solid cylinder and a thin-walled hollow cylinder have the same mass and radius. They are rolling horizontally along the ground toward the bottom of an incline. They center of mass of each cylinder has the same translational speed. The cylinders roll up

*asked on April 3, 2011* -
## Physics: Buoyancy

A crane lifts the 23000 kg steel hull of a ship out of the water. Determine the following. (a) the tension in the crane's cable when the hull is submerged in the water

*asked on January 27, 2013* -
## physics

"A 1220-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Find a) the magnitude of the tension in the cable and b) the magnitude of the horizontal and

*asked on April 1, 2011* -
## Finite Math

Let A and B be two events in a sample space S such that P(A) = 0.5, P(B) = 0.6, and P(A intersection B) = 0.15. Find the probabilities below. Hint: (A intersection Bc) union (A intersection B) = A. (a) P(A|Bc) ________ (b) P(B|Ac) ________

*asked on November 20, 2014* -
## Math Geometry

Polygon ABCD is similar to polygon WXYZ, and and are corresponding sides. You know the perimeter of each polygon, and you know the measure of BC. What can you find? A. Measure of all sides of both polygons B. Measure of

*asked on June 21, 2016* -
## Engineering

The density of gasoline is 0.72 grams per cubic centimeter. What is the mass in units of kilograms of a 5-gallon container filled completely with gasoline? Ignore the mass of the container.

*asked on February 7, 2016* -
## Math Help please

You complain that the hot tub in your hotel suite is not enough. The hotel tells they will increase the temperature by 10% each hour. If the current temperature of the hot tub is 75 degrees Fahrenheit, what will be the temperature of the hot tub after

*asked on April 17, 2013* -
## Physics

"A 1220-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Find a) the magnitude of the tension in the cable and b) the magnitude of the horizontal and

*asked on April 3, 2011* -
## Algebra 2

How can you determine whether or not a graph, equation, or table of points is a conic section? Explain how to identify a conic section in each of these cases by giving examples.

*asked on February 27, 2019* -
## Finite Math

A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lights are selected one at a time without replacement and tested until both defective lights are found, what is the probability

*asked on November 20, 2014* -
## Algebra 2

What is the equation of the circle with center (-6 7) that passes through the point (4 -2)

*asked on May 8, 2019* -
## Algebra

It takes 15 men working steadily 4 days to dig the foundation for a new apartment. How many days would it have taken 25 men working at the same rate to dig the foundation? Express your answer as a decimal to the nearest tenth.

*asked on December 31, 2014* -
## math

what is the probability of selecting two S's if the first card is not replaced before selecting the second card in the word Massachusetts

*asked on April 21, 2017* -
## engineering

In many engineering uses, the value of �g�, the acceleration due to gravity, is taken as a constant. However, g is actually dependent upon the distance from the center of the Earth. A more accurate expression for g is: g=g0(Re/Re+A)^2 Here, g0 is the

*asked on January 31, 2016* -
## Algebra

F(t)= 30000/1+20e^-1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a.) How many people became ill with flu when the epidemic began? b.) How many people were

*asked on April 12, 2014* -
## maths

For the following graph: a. Find the domain of f. b. Find the range of f. c. Find the x-intercepts. d. Find the y-intercept. e. Find the intervals over which f is increasing. f. Find the intervals over which f is decreasing. g. Find the intervals over

*asked on February 18, 2013* -
## vocab help

words - detriment, dexterous, discretion, facetious, gregarious, optimum, ostentatious, scrupulous, sensory, and vicarious. "you have to be use __ in choosing your friends," my father said."If your associates are dishonest, people will think that you

*asked on September 1, 2016* -
## chemistry

Suppose a fuel-cell generator was used to produce electricity for a house. If each H2 molecule produces 2e- , how many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of

*asked on July 11, 2010* -
## Math

Translate the sentence into an inequality. Six increased by the product of a number and 10 is at most −16 . Use the variable x for the unknown number.

*asked on February 11, 2015* -
## chemistry

1) DETERMINE pH of each of the following 2-component solutions. 0.08M RbOH & 0.130M NaHCO3

*asked on July 18, 2010* -
## Chemistry

When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 37 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?

*asked on September 16, 2019* -
## Gedeon

You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42. a. Write an equation you can use to find the sales tax rate r.

*asked on February 7, 2017* -
## Physics

A train has a mass of 5.22 multiplied by 106 kg and is moving at 70.0 km/h. The engineer applies the brakes, which results in a net backward force of 1.87 multiplied by 106 N on the train. The brakes are held on for 37.0 s. (a) What is the new speed of the

*asked on October 2, 2011* -
## Physics: Buoyancy

A crane lifts the 23000 kg steel hull of a ship out of the water. Determine the following. (a) the tension in the crane's cable when the hull is submerged in the water

*asked on January 27, 2013* -
## chemistry

How much limestone (CaCO3) in kilograms would be required to completely neutralize a lake with a volume of 5.2 x 10^9L . The lake contains 5.0 x 10^-3 moles of H2SO4 per liter?

*asked on June 28, 2010* -
## Math

What does the degree of a polynomial expression tell you about its related polynomial function? Explain your thinking. Give an example of a polynomial expression of degree three. Provide information regarding the graph and zeros of the related polynomial

*asked on January 10, 2018* -
## Physics

A 2 kg steel ball strikes a wall with a speed of 8.15 m/s at an angle of 54.4◦ with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. If the ball is in contact with the wall for 0.243 s, what is the magnitude

*asked on November 2, 2011* -
## world history

what is the term for the policy of qvoiding conflict that the the United States had originally pursued during the war that was based on the belief that the country should maintain a limited involvement in world affairs while trying to broker a peace?

*asked on February 7, 2008* -
## math

A shipment of boxes weighs 40 pounds. There are 8 boxes and each weighs the same number of pounds. How much does each box weigh?

*asked on February 8, 2012* -
## physics

"By means of a rope, whose mass is negligible, two blocks (mass: 11kg and 44 kg) are suspended over a pulley. The pulley can be treated as a uniform solid cylindrical disk. The downward acceleration of the 44 kg block is observed to be exactly one half the

*asked on April 1, 2011* -
## PHysics

An athlete crosses a 21 m wide river by swimming perpendicular to the water current at a speed of 1.1 m/s relative to the water. How fast is the water in the river flowing with respect to the ground in m/s?

*asked on September 9, 2015* -
## physics

A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m^3 of water and the surface area of the bottom of the container is 5.00 m^(2 ). The height of the lower part of the container is

*asked on April 21, 2009* -
## chemistry

at some temperature, Keq=33 for the reaction H2 + I2 -> 2HI. If initially, [H2]= .0600 M and [I2]= .0300 M, what are all three equilibrium concentrations?

*asked on March 7, 2016* -
## physics

"By means of a rope, whose mass is negligible, two blocks (mass: 11kg and 44 kg) are suspended over a pulley. The pulley can be treated as a uniform solid cylindrical disk. The downward acceleration of the 44 kg block is observed to be exactly one half the

*asked on April 3, 2011* -
## calculus

A force of 1300 lb compresses a spring from its natural length of 16 in to a length of 10 in. How much work is done in compressing it from 10 in to 6 in?

*asked on November 28, 2011* -
## physics

How far to the nearest tenth of a meter can a runner running at 15 m/s run in the time it takes a rock to fall from rest 68 meters?

*asked on October 6, 2011* -
## Physics

A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?

*asked on November 29, 2011* -
## Physics

The useful power output of Bryan Allen, who flew a human-powered airplane across the English Channel on June 12th, 1979, was about 350 W. The propellor of the airplane was driven by the pilot's legs, using a bicycle-tyoed mechanism. Using the efficiency

*asked on April 5, 2011* -
## math

Explain why arcsin 3 is undefined.

*asked on January 21, 2011* -
## History

35. The Neutrality Acts of 1939 included this component, ________ and ________, which helped Americans support the Allies with supplies.

*asked on February 13, 2019* -
## Trig

When the angle of elevation of the sun is 61°, a telephone pole that is tilted at an angle of 8° directly away from the sun casts a shadow 20 feet long. Determine the length of the pole to the nearest foot. I'm stuck halfway through this problem, I

*asked on March 5, 2017* -
## Physics

How much mechanical energy was lost during the ball's fall?

*asked on May 20, 2013* -
## physics

"A small 0.5 kg object moves on a frictionless horizontal table in a circular path of radius 1 meter. The angular speed is 6.28 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the

*asked on April 1, 2011* -
## Chemistry

For the reaction C + 2H2 -> CH4 How many grams of hydrogen are required to produce 145 grams of methane, CH4

*asked on June 1, 2017* -
## physics

What is the gravitational force on a bar that is 3 meters long and has a density of 3x kg/m and lies 3 meters from a 2 kg point mass

*asked on November 19, 2011* -
## physics

"A solid cylinder and a thin-walled hollow cylinder have the same mass and radius. They are rolling horizontally along the ground toward the bottom of an incline. They center of mass of each cylinder has the same translational speed. The cylinders roll up

*asked on April 1, 2011* -
## chemistry

How much limestone (CaCO3) in kilograms would be required to completely neutralize a 5.2 x 109 --L lake containing 5.0 x 10 -3 of H2 SO4 per liter?

*asked on June 28, 2010* -
## Grammar

What is the possessive form of democracy in the following sentence. Would democracy followers win the struggle. Is it democracies'

*asked on November 16, 2009* -
## algebra

How do I find the perimeter of a square with one side listed as 4x + 3 and one more side listed as 3(2x - 5)? Thank you

*asked on November 18, 2013* -
## Physics

A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

*asked on October 2, 2011* -
## History

Regarding early reports of the Holocaust during World War II, the immediate response by President Roosevelt and the United States government was a. to focus on winning the war as quickly as possible. b. to allow greater numbers of refugees into the United

*asked on February 7, 2019* -
## Physics

"A small 0.5 kg object moves on a frictionless horizontal table in a circular path of radius 1 meter. The angular speed is 6.28 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the

*asked on April 3, 2011* -
## MATH

NORALIE USES 22 GAL OF GAS TO GO 682 MILES. WHAT ARE THE 2 UNIT RATES SHE MIGHT COMPARE & COMPUTE THEM I KNOW ONE IS MILES PER GALLON BUT WHAT IS THE OTHER UNIT RATE? LITERS PER KILOMETER? PLEASE HELP

*asked on November 20, 2008* -
## History

13. Germany absorbs Austria and then Czechoslovakia into the German Reich, often referred to as the_________

*asked on February 13, 2019* -
## geometry

LM has the endpoints L(-1,1) and M(-5,-3) find the coordinates of the midpoint of LM

*asked on June 7, 2012* -
## physics

A 9.3 kg firework is launched straight up and at its maximum height 45 m it explodes into three parts. Part A (0.5 kg) moves straight down and lands 0.29 seconds after the explosion. Part B (1 kg) moves horizontally to the right and lands 10 meters from

*asked on December 22, 2008* -
## Algebra 2

What is the 20th term of the sequence -3, 6, -12, 24 The answer is 1,572,864 i just need to know the math in order to obtain the answer.

*asked on May 8, 2019* -
## algebra

sam mowed half of the yard on friday and half of the remaining grass on saturday what fractional part of yard still needs to be mowed

*asked on September 27, 2011* -
## math

One line can divide a plane into two regions. Two lines can divide a plane into four regions. Three lines intersecting at a point can divide a plane into six regions, but you can get more regions than that if the lines don't intersect at a single point. My

*asked on August 27, 2006* -
## Algebra

Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is

*asked on April 12, 2014* -
## counting

how many squares are in an 8x8 checkerboard? (the answer is not 64 because that's too low.) Thank you for using the Jiskha Homework Help Forum. Unfortunately, you don't state the size of each square. Hopefully the following will answer your question!

*asked on October 22, 2006* -
## Chemistry

What is the wavelength (in nm) for a photon of light with an energy of 3.20 x 10-19 J/photon?

*asked on September 18, 2019* -
## Spanish

Hello, Can someone please help me edit the answers to my reading response questions for grammatical correctness. It would be greatly appreciated! 1. ¿Cuál es el ambiente de este cuento? --Answer below: El ambiente de este cuento es de una el camino a

*asked on January 29, 2017* -
## Please Reiny Solve it For me Again! please......

Solve for the value of x: log5(x-2)+log8(x-4)=Log6(x-1)..For your information that 5,8 and 6 are bases not just multipliers. Thank you.

*asked on April 10, 2013* -
## Math

A plane leaves an airport and flies South 58 Degrees East for 2 hours, then changes course to South 43 Degrees West and flies for 3 hours. How far away is the plane from the airport if it keeps a constant speed of 500km/h? Draw a diagram and solve to the

*asked on November 4, 2015* -
## Math

A 20 foot ladder is leaning against a building. If the ratio of the base of the ladder's distance from the building to its top's height from the ground id 3:4, find how high the top of the ladder is from the ground.

*asked on June 5, 2013* -
## Please solve it for me!! Please...Maths

Solve for the value of x: 6log(x^2+1)-x=0

*asked on April 4, 2013* -
## Please help me!!!! maths

Solve for x: log5(x-2)+log8(x-4) = log6(x-1). I do not have any idea on this topic.

*asked on April 3, 2013* -
## Biology

Explain what happens during each of the three steps of cellular respiration and explain why a lack of oxygen is such a severe problem to the process.

*asked on December 2, 2011* -
## Biology

Using the fundamentals of thermodynamics, explain why we must continue to eat in order to maintain homeostasis?

*asked on December 2, 2011* -
## Chemistry

In the following reaction, it 13g of sodium are reacted how many grams of copper(solid) can be obtained? 2Na(s)+ Cu(NO3) 2 - - > 2NaNO3 + Cu(s)

*asked on September 25, 2011* -
## physics

How many mL of orange juice would be required to get the recommended daily allowance of 60 mg of vitamin C? (Concentration of vitamin C is .011 moles/L in 5.0 mL of juice).

*asked on May 4, 2011* -
## Math

How does 26.666 equal 26.2? Could you show me a model of how to do this? Thank You

*asked on April 8, 2014* -
## separation of variables

solve the initial value problem by separation of variables dy/dx=x2/y given y=-5 when x=3

*asked on March 19, 2011* -
## physics

Your hard drive can spin up to 7500 rpm from rest in 5 s. If your hard drive's mass is 40 g and its radius is 2.5 in, what is the force applied to the drive if the force is applied at a point 0.25 in from the center? Assume the drive is a solid, uniform

*asked on May 2, 2009* -
## algebra

(3.2 x 10^5) (2 x 10^-3) ------------------------- (2 x 10^-3) I got 1.6 x 10^5 like this, (3.2 x 10^5) (2 x 10^-3) ------------ x ----------- (2 x 10^-5) (2 x 10^-5) (3.2 x 10^5) (2 x 10^-3) ------------ x (2 x 10^-5) (3.2 x 10^5) ------------ > 3.2 10^5

*asked on November 19, 2008* -
## Variable

SOLVING EQUATIONS WITH THE VARIABLE ON BOTH SIDES Solve the equation. Then check your solution. 4x-9 = 7x+12 Just remember that one can add, subtract, multiply, divide, etc but whatever is done to one side must be done to the other side of an equation. 4x

*asked on August 5, 2006* -
## Chemistry

A goal of the acid-base titration in this scenario is to determine the concentration of sodium hydroxide solution. To do this, a 1.3000 g sample of potassium hydrogen phthalate (KHC8H4O4) is massed out. The KHP has one acid proton (H+). The solid is

*asked on September 26, 2015* -
## math

On a 9-hour trip home from winter break, Mary was forced to drive on a stretch of highway that had a lot of construction. At first she had to go 55 miles per hour for a certain amount of time, but then she was able to go 65 miles per hour for the rest of

*asked on August 19, 2013* -
## Physics

A yo-yo with an axle diameter of 2.00cm has a 80.0cm length of string wrapped around it many times in such a way that the string completely covers the surface of its axle, but there are no double layers of string. The outermost portion of the yo-yo is 4.00

*asked on May 25, 2013* -
## world history

is pennsylvania's government a monotheistic or not?

*asked on April 30, 2011* -
## geometry

What does it mean when the scale factor of the actual object to its model is less than one?

*asked on February 6, 2011* -
## Grammar

Yes, and the sentence is exactly as written. I'm just supposed to chose. That is why it is confusing.

*asked on November 16, 2009* -
## physics

A student opens a 12.0 kg door If the door is 2.00 m in height and 1.00 m wide what is the moment of inertia of the door about its hinges. The equation for moment of inertia about the hinges is I =1/3 mr^2 should i use the the width or the height as my r i

*asked on April 19, 2009* -
## physics

A 9.3 kg firework is launched straight up and at its maximum height 45 m it explodes into three parts. Part A (0.5 kg) moves straight down and lands 0.29 seconds after the explosion. Part B (1 kg) moves horizontally to the right and lands 10 meters from

*asked on December 21, 2008* -
## Science

Hypotheses can be rejected or supported by experiments, or, in some instances, new observations. i think it's true

*asked on January 30, 2016* -
## Physics

A heat engine does 650 J of work and dumps 1270 J of heat to its cold reservoir. What is its efficiency?

*asked on April 16, 2013*

## Pages

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