Zach

This page lists questions and answers that were posted by visitors named Zach.

Questions

The following questions were asked by visitors named Zach.

hey guys a got a few problems i need help with im really desperate for help they're due soon online :( 1.Suppose that a constant current of 89 mA flows in a conductor. Find the absolute value of the total charge that passes through the conductor in 3 minu...

-6h + 4 - 3 + h = 11 4-3-11=6h-h -10=5h -2=h

What are the 4 nuclear forces? Out of the 4 which one is the strongest and which one is the weakest? Thanks http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html THANK YOU As a side note, these are not nuclear forces. They are the four fundamental...

I have 5 pieces each is a triangle and they are supposed to somehow form a large triangle. Everyone has tried and we can't figure it out. I see lots of solutions online for 7 piece tangrams but nothing for a 5 piece. Thank you Zach I suspect there are 180...

PLEASE HELP ME FIGURE THIS PROBLEM! Solve equation and check the solution -3(r+5) = 3(r - 1)__________________

Why does the speed of wind have no affect on a homemade electromagnetic generator attatched to a windmill? I did an expiriment using a windmill and altered the wind speed 3-11mph. There was no change in the amount of amps genrerated. Are my results just w...

A 97.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.70 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.8...

A person pulls a toboggan for a distance of 40.0 m along the snow with a rope directed 15.0° above the snow. The tension in the rope is 69.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done if the same tension i...

A 0.052-kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow over a distance of 0.75 m. With what speed does the arrow leave the bow?

Batman (mass = 90 kg) jumps straight down from a bridge into a boat (mass = 530 kg) in which a criminal is fleeing. The velocity of the boat is initially +20 m/s. What is the velocity of the boat after Batman lands in it?

A motorcycle has a constant speed of 24.0 m/s as it passes over the top of a hill whose radius of curvature is 129 m. The mass of the motorcycle and driver is 330 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on th...

An automatic drier spins wet clothes at an angular speed of 4.8 rad/s. Starting from rest, the drier reaches its operating speed with an average angular acceleration of 3.6 rad/s2. How long does it take the drier to come up to speed?

You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 45 N·m. Using the data in the drawing, determine the magnitude F of the force that you must exert on the wrench. Lenght of t...

During a tennis serve, a racket is given an angular acceleration of magnitude 155 rad/s2. At the top of the serve, the racket has an angular speed of 13 rad/s. If the distance between the top of the racket and the shoulder is 1.5 m, find the magnitude of...

Identify the center and radius of the circles represented by the following questions (a) 3x² - √3x+3y²-y+ 1/12=0 (b) 12x² + 12y²+42y=0

Determine whether the functions are even, odd, or neither. (a) f(x) = x²/√x²+ 1 (b) g(x) = x^3 - √ x- 7

Let f(x)= x^5/120 - x^3/6 + x Find the local minima and maxima, then determine where the function is decreasing and increasing. Basically, I just need to know how to type this correctly in my calculator so I can get the right minima and maxima. I had: loc...

Oil is flowing with a speed of 1.30 m/s through a pipeline with a radius of 0.315 m. How many gallons of oil (1 gal = 3.79 10-3m3) flow in one day?

A steel beam is used in the construction of a skyscraper. By what fraction L/L0 does the length of the beam increase when the temperature changes from that on a cold winter day (-20°F) to that on a summer day (+108°F)?

What are the differences between utopia and dystopia? What are some current real world references to utopia and dystopia?

Hey guys my Econ final is on Tuesday and I could use some help. These are 4 example questions true/false with explanation needed. 1. A monopolist will produce less and charge a higher price than a perfectly competitive industry. 2. Regardless of the type...

Calculate the DELTA H(rxn), DELTA S(rxn), DELTA S(universe), DELTA G(rxn). For each system below indicate whether DELTA S and DELTA H are positive or negative. Then indicate if the reaction is entropy driven, enthalpy driven or neither. C3H8(g) + 2O2(g) =...

ΔT = T(mix) - T(initial) And the equations is: HCl(aq)+ NaOH(aq) => NaCl(aq) + H2O(l) And T(mix) = 37 C 50.0 mL of 2.0M HCl = 23.7 C 50.0 mL of 2.0M NaOH = 23.5 C How do I find T(initial), do I just use their averages? Thanks

How Many Molecules are contained in 0.25 moles of Fe?

Predict what would happen to a reptile body temperature if the outdoor temperature increases by 10c.

Does anyone know where I might find a step-by-step reaction mechanism for a polymer condensation reaction involving Hexamethylenediamine with Adipoyl Chloride (thus synthesizing Nylon 66)? If not, can anyone help list the steps that take place and why? An...

What does a covalent bond consist of? Thanks!

The greater electronegativity difference bewteen two atoms bonded together, the greater the bond's percentage of ______ a. ionic character b. nonpolar character c.metallic character d.electron sharing Thank you!!!!

How can I make a 3D model of a bone cell?

Mary's class took two tests last week. 80% of the class passed the math test, 90% of the class passed the English test, and 72% of the class passed both. What is the probablility that a randomly selected student in Mary's class failed both tests? Express...

On a multiple choice test with 10 questions and 5 choices, A,B,C,D,E, for each questions, what are the odds of guessing on all 10 questions and getting 100%. State your answer as a common fraction. Thanks -Zach

x^2 + 16=0 Solve by graphing

Starkist tuna company will package tuna fish in 2-L cans. Find the radius and the height of the cans if the cans have a surface area which is less that 980 cm^2. I have no idea how to go about this, it seems like geometry to me. Can you give me some help?...

I am familiar with this type of problem but can't seem to get the right answer. Use the given zero to find the remaining zeros of each function f(x)=x^4-9x^3+7x^2-91x-348,zero 5-2i I normally would use synthetic division with the root 5-2i bringing it dow...

Thanks so much your method worked perfectly! My solution was: the remaining zeros were 5+2i, 3, and -4 I have one question that's bugging me though, why is it that synthetic division did not work for me? I thought that long division and synthetic division...

Write a quartic function that has roots that are 3+5i, -4 and 7 and f(-3)=53. I have tried it a bunch of times and can't seem to get it. (x-3+5i)(x-3-5i)(x+4)(x-7) I multiplied them together x^4-9x^3+24x^2+66x-952 I was a little unsure what f(-3)=53 means...

Marcus and Allen are playing Rock/Paper/Scissors. The first one to one 10 times does not have to do the dishes. The score is now 9 to 7 in favor of Marcus. If ties are ignored and not counted, what is the probabilty Marcus will not have to do the dishes?...

The perimeter of a rectangle is 34 feet and the area measures 60 square feet. What are the length and width of the rectangle? (Hint: Use the equations : perimeter = times the sum of the length and the width area = length times width)

In a hydroelectric dam, water falls 26.0 m and then spins a turbine to generate electricity. What is ∆U of 1.0 kg of water? Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must...

Two air-track carts are sliding to the right at 1.0 m/s and held together by a string. The spring between them has a spring constant of 140 N/m and is compressed 4.5 cm. The carts slide past a flame that burns through the string holding them together. Aft...

A 120 g ball moving to the right at 4.2 m/s catches up and collides with a 450 g ball that is moving to the right at 1.2 m/s. If the collision is perfectly elastic, what are the speed and direction of each ball after the collision?

A 5.50 kg cat leaps from the floor to the top of a 94.0-cm-high table. If the cat pushes against the floor for 0.220 s to accomplish this feat, what was her average power output during the pushoff period?

A 60-cm-long, 500 g bar rotates in a horizontal plane on an axle that passes through the center of the bar. Compressed air is fed in through the axle, passes through a small hole down the length of the bar, and escapes as air jets from holes at the ends o...

The school that Trevon goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 12 adult tickets and 4 student tickets for a total of $188. The school took in $171 on the second day by selling 6 adult tickets an...

In how many ways can Abby, Bonnie, Chuck, Dennis, Ed and Fred line up at the water fountain so that the two girls, Bonnie and Abby, are not beside each other?

2(7n-1)> or equal 3(5-n)

need help thank-you translate the verbal phrase into an inequality, then solve the inequality and graph your solution, the product of 6 and the difference of 6x and 3 is less than or equal to the product of -2 and the sum of 4 and 8x

The radius of a circle is increased by 85%. How much will the area increase in percent? Round your answer to the nearest tenth if a percent. I'm stuck on this question. Thanks -Zach

simplify -x/4/6/x

simplify -x/4/6/x

If the yield from the reaction of acetic acid with isopentyl alcohol is 45% how many grams of isopentyl acetate are formed from 3.58g of acetic acid and 4.75g of isopentyl alcohol?

The rectangular prism has a height of 28 cm and holds exactly 360cm cubed. What is the length and width using the formula lwh?

1) The concentration of the aluminum ion in a test solution is 0.10M. Using the Ksp for aluminum hydroxide (3. x 10^-34), calculate the concentration of hydroxide needed to precipitate aluminum hydroxide. From the concentration of the hydroxide, calculate...

What four influences did Greece had on Roman culture?

I don't get it, so the four influences that Greece had on Roman culture are art, religion, mythology, and the Latin alphabet?

How many positive three-digit integers have the property that the tens digit is greater than or equal to the hundreds digit and the ones digit is greater than or equal to the tens digit? Please help :) thanks -Zach

A large tank contains 400-kg mixture of water and alcohol. The mixture is 64% alcohol by weight. At each step, 100 kg of the mixture will be drained from the tank, replaced with 100 kg of water and then stirred. After three steps, what percent of the fina...

Six pipes each having a radius of 0.5 feet are stacked in a triangular pile with three pipes on the ground tangent to each other, two in the next row and one on top. What is the height of the pile. Express you answer in simplest radical form

The side lengths of a right triangle are each an integral number of units. If one of the legs is 13 units, what is the perimeter of the triangle? Thanks ~Zach

20 divided 2 minus 24 divided by 3 equals ? No parenthesis

When a survey of 800 people was done, 55% of those surveyed said they ate candy, 65% said they ate chips and 90% said they ate hot dogs. What is the smallest possible number of people who said they ate candy, chips and soda? -Zach

Is this a star polygon, a polygon, or other, how many sides does it have? {9/3}

I have one problem I just can't figure out, A machine in an ice factory is capable of exerting 3.30 * 10^2 N of force to pull large blocks of ice up a slope. The blocks each weight 1.21 * 10^4th N. Assuming there is no friction, what is the max angle that...

A usted _______gusta jugar a los deportes. What goes in the blank?

In order for conduction to occur particles must make what?

A museum curator moves artifacts into place on many different display surfaces. Use the values in Table 4-2 in the textbook to find Fs,max and Fk if you were to move a 157 kg aluminum sculpture across a horizontal steel platform. Fs,max: Fk:

How much iron can be recovered from 25.0 grams of FeO?

How many grams of potassium can be obtained from the decompostion of 100 grams of KCl?

calculate the number of formula units of 0.0067 g of lithium carbonate, Li2CO3?

How do I find the area of a triangle?

Finding the area or a triangle A=1/2bh A= 1/2 x 13.6 x 7

How does (1/2 x 3) x 8 and 3 x (1/2 x 8) being equal help in finding the area of a triangle?

A=1/2bh A= 1/2 ? ? A= 180 what could the base and height be?

Are (1/2 x 3) x 8 and 3 x (1/2 x 8) equal? Explain how this can help in finding the area of a triangle

How do you solve this problem? 3/5k - (k + 1/3) = 1/15 (k + 3) Please show me the steps. Thanks.

If g(x)= -2^2 and h(x)=x-2/5. Find the indicated value. h(g(5)) I got -5.4. is that right?

1/4x - 5/12x = x - 4/3 Please show steps and answer. Thanks.

A ball throw at 45 degree angle with an initial speed of 15m/s. the time for the ball to reach its highest point can be found from the data and known constants using which equation? solve for time?

I need help with the following problem. -6 less than or equal to 3 + 1/3a less than or equal to 5 Please show steps and answer. Thanks.

A Rectangular Field is to be enclosed by a fence and divided into three parts by another fencer. Find the maximum area that can be enclosed and separated in this way with 500 meters of fencing.

Approximate the gravitational force of attraction between a 49.0 kg girl and a 52.0 kg boy if they are sitting 2.5 m apart

Please help me solve for the following coefficients. The equation is: 2X-Y=4 if X = 0, then Y = ? if Y = 0, then X = ? if X = 1, then y = ? if Y = -6, then X =? Thanks!

find the lengths of the sides of a triangle whose perimeter is 37. The measure of the first side of the triangle is 8 less than the second side, and the second side is twice the length of the third side

I need help with the following question. Solve for y: 3x - 2y = 8 + x Please show the steps and the answer, thanks.

The Problem: The spherical top holds a little over 54,000 gallons of water. The base of the top is 60 feet above the ground. The diameter of the supporting column is one-third the radius of the sphere. The base of the supporting column flares out like a c...

3 dice are rolled let (y,r,b) represent each outcome? a- sample space b- prob rolling a sum of 18 c- prob of rolling a sum less than 5

PLEASE NOTE: Titration requires several steps in order to obtain exact results. The procedures described in this lab assume that you have already done the TITRATION TUTORIAL and are familiar with the technique. 1. Prepare the NaOH solution by dissolving a...

Calculate the mass of NaCl produced when 5.50 moles of Sodium reacts with excess chlorine gas.

A gas at 1.5 atm, 2.3L, and 23degreeC changed to 1.0 atu and 2.8L. What is the new temperature?

If 1/2 moles of 02 react with 24 moles of hydrogen, can 2 moles of water be produced?

Answer the calculus question about Point P, 45 mph, etc. It is ALREADY posted on here.

your aunt gives you a check on your birthday each year. on your first birthday , she gives you a check for one cent. the next year she gives you 3 cents , then 9. each year she triples the amount of the previous year 's check. how old will you be when she...

A ball swings in a vertical circle at the end of a rope 1.50 m long. When the ball is 35.9° past the lowest point on its way up, its total acceleration is (-22.5 i + 20.2 j)m/s^2. Find radial acceleration?

Answers

The following answers were posted by visitors named Zach.

Would you start by dividing everything by 6? then after that I am confused

Ok I started by diving by 12 to get x² + y² + 3/2y = 0 then x² + y² +3/2 + ____ = 0 + ____ then (3/2)² = 3/4 (3/4)² = 9/16 and got the equation x² + y² + (3/2)y + 9/16 = 0 + 9/16 here is where I am confused x² + [y+(3/4)]² = (3/4)²

Only with etre and reflexive verbs, do the subjects agree.

The first one is correct. Because you don't have candy in a plate, you have it on a plate, and candy even though we know it is plural you would use "is"

Hey, this helped me with my extra credit. Thanks :-)

Okay, here is a solution. Not sure if it's the best one, but it seems to work. D = drag force D = (1/4)Av^2 v is terminal velocity A = 1.80m * 0.300m F(net) = D since there is no acceleration m*g*sinè - ì(kinetic)*m*g*cosè = (1/4)Av^2 solve for v (your te...

those funky è letters are supposed to be theta. The funky ì is mu.

3x^2-15x+18=0 -18 3x^2-15x=-18 square root 3x-15x=4.2426406871192851464050661726291 divide by 3 x-15x=1.4142165323730950488016887242097 divide by -15 x+x=-0.094280904158206336596779248280647 -x x=-0.094280904158206336596779248280647x

-6x-15>57 +15 +15 -6x>72 Divide both sides by -6 And switch sign because dividing the variable by a negative x<-12

Thanks And I think you answered my question last time i posted, so thanks for keep on rollin' :)

Is the volume 2L? How can I solve for diameter if I don't have the height?

How do I get the volume?

I tried to solve for H in the volume equation. so, 2=3.14(r^2)H divide 2 by 3.14=.64 .64=r^2H .64/r^2=H Not sure where to go from here

I get where a comes from. Is the answer 53/-610? It doesn't seem right.

The electronic version is just an on-line, web version of the same ad that is in print, such as in a newspaper.

That's all the data I have.

You need to set up the proportion Base 6.5m 4m ---- ---- ---- Length 3.7m e Then you cross multiply: 6.5xe=6.5e 4x3.7= 14.1m So therefore, 6.5e = 14.1m Then divide both by 6.5 to get what e equals. 6.5e/6.5 = e 14.1/6.5 ≈ 2 so e ≈ 2.

3|x+5|<= 6 |3x+15|<= 6 -15 -15 |3x| <= -9 /3 /3 x <= -3 Yes, you are correct.

I would set up a proportion meters 1 x ---- --- --- scale 2.5 100 (% means out of a hundred) Since 25 x 40 = 100, then 1 x 40 = 40 The bridge is 40m long.

dollar:cent;meter:centimeter

A. a = v/t 165km / 8s = 20.625 km/h/s B. t= 60s-8s =52s, V= 1650km/h-165km/h =1485km/h a=v/t 1485km/h / 8s= 185.625km/h/s C. d=1/2at^2 1/2 * 20.625 km/h/s * (8s)^2 = 183.333m D. 60s-8s=52s d=1/2at^2 1/2 * 186.625km/h/s * (52s)^2 = 70.088km

A. 5.729 m/s^2 B. 51.5625 m/s^2 C. 183.333m D. 70,088m

86 degrees Fahrenheit = 30 degrees Celsius so, (30,86)

I need to variables would equal 180 by being divided by 1/2

4(3)+4(3) *4 *4 --------- 12+12=24

and List all measurements and include proper labels. Molecular weight of benzoic acid: 122.12 g/mole Mass of benzoic acid used: Titration of NaOH and benzoic acid: (Fine Titrations Only) Trial 1 Trial 2 Initial volume(NaOH)(ml) final volume(NaOH)(ml) Calc...

Hey, how come no one has answered parts c through e? I need some help here!!! This is the ONLY site on the internet that has this problem worked.

or 100%, depending on what your teacher is looking for

I'm doing a crossword. The question is what is the term to "postpone a sentence/fine?" It starts with an R_ _ _ I _ _ _. Thought it was suspend but this isn't right. Any help is great

In my book the anser for D is 2.68 x 10^4 mg/L as CaCO3, my first thought was to do what you did but i cant get to the answer in the book, am I missing something very obvious here? Im getting like 5.4 x 10^4

a) Vi= 6.7sin(53) Vi = 5.35 V = Vi - gt at top 0 = Vi - g t so t at top = Vi/g t = .55 y at top = 1 + Vi t - 4.9 t^2 = 1 + 5.35(0.55) - 4.9(.55)^2 y at top = 2.46 b) u = 6.7 cos 53 x = u t x = (6.7 cos 53)(.55) x = 2.22

use s=ut + 0.5*a*t^2 in vertical direction s =0 because there is no vertical displacement at the time it reaches the ground a= -9.81 ; minus because we consider up as the positive direction. u= 24.8 sin 62.5 ; vertical component of the Velocity SO t= 2*u/...

In the lab I had a strip of magnesium that weighed 0.029 grams and I added 15 milliliters of 0.5 M hydrochloric acid into a flask and I never used any water during the lab. So I don't really understand where I would get the water vapor pressure.

Oh ok and I used a device called a Xplorer GLX and it measured the pressure of the flask before I put in the magnesium and hydrochloric acid and then it measured the pressure once the reaction was complete. But thank you for all of your help!

What is the complete and simple subject for, One story links this day to an old Roman festival?

The complete subject is, Many stories about the first Valentine's day. The simple subject is stories.

So I would multiply 3% by 20 mL which equals 0.6. Then I would divide 0.6 by 30% to get the volume of 30% hydrogen peroxide?

I used bromophenol blue as the indicator, and the molarity of HCl is 0.2M.

I have done the calculation for this multiple times and I keep getting over 100% for the sodium carbonate in soda ash. I have no idea what I am doing wrong. I did it the way that you explained.

Chris has a 3 1/2 foot long board. He cuts out 4 pieces that are each 2/3 foot long. Find the combined length of the 4 pieces? Find length of the remaining board after chris gets his 4 pieces?

iZachIsCool don't get it is hard I have to find the answers I am a teacher and I need them now I am at school and when I looked I did not get any answers can u tell me 😳

A.) h/4μk B.) h/16μk

Yes what I meant is that it decreased 1/4 of every its impact, so therefore the answer would be 60 mph after first impact.

How many quarts of pure pineapple juice should Theo add to a 20% pineapple drink to create 5 quarts of 50% of pineapple juice mixture?

Im also from American hs lol but yeah its noun.

Reiny, I do not see how your calculation = 65.88, I get 25.2. Also, I do not understand your diagram. It looks like this ------------------------------------- \ 56 degree 45 degree / \ / \ / \ / \ / \ / \______________________/ | | | 35 newtons | | | |___...

------------------------------------- \.56 degree ...........45 degree.../ \................................/ \............................../ \............................/ \........................../ \......................../ \______________________/...

Well I did a similar problem but the speed was 1.5 instead of 1.6 and the answer there is 320 N/C, the proton doesnt hit the plates, the vertical displacement is 2.73*10^-6m and the displacement is downward.

I need help answering these questions

yes that's the equation

She would have to be 2.22 repeating for them to have a tie. Yoku actually runs 8 yards in ten seconds

more into detail please

Sapling wanted the two's

The first part you have right fundamental counting principal = 4*2*2 = 16 Next we need to find out what are the chances she picks the banana colored bike with a basket = 2/16 or 1/8 and the chance she picks the Atomic Tangerine bike without the horn = 2/1...

Thanks bruh, I got 100%!

The Canadian Shield

Anon is 100% correct.

Thanks Dylan you were completly right!

Is that the correct answer?

Um...Mrs. Sue? I know you're answering others but I need to know whether it's A.

Oh okay, nvm. My internet lagged so I guess it took awhile for your response. Thank you!

I verify emma's answer. It is 3,500.

(-1,-6) The perimeter is 30

The senior class took a trip to Washington, D.C. and Annapolis for their research project. A Compound B Simple C Complex D Compound-Complex

It would be 8! because one name can go in 8 different positions, another one can go in 7 different positions, another in 6, and so on. And, 8!=40320

Answers 1/3 are 1C 2B 3C

I’m working on it half to do the test myself

Suppose you have a job teaching swimming lessons and get paid $9 an hour. You also have a job as a cashier and get paid $7 an hour. If you cannot work more than 20 hours a week, what are the number of hours you can work at each job and still make at least...

Bob is wrong it is B a = 3/5, b = 3, c = 1, d = 5 a/b = c/d 3/5/3 = 1/5 1/5 = 1/5

ignore this question i fg something

A dramatic irony B direct characterization C flashback D foreshadowing

To make this easier. The ratio of carbon to hydrogen is 1/2 so for part a you have to multiply it by 2 so the answer would be 4.06 x 10^22. For part b, you would have to find the molar mass of glucose which is 180.16 and multiply it by 6.023 x 10^23 so th...

.............? The answer I think is YES but I have no explanation.

B. X = (1/2)(a)(t)^2 = (1/2)(8)(3)^2 = 36 cm Y = (v(0))(t) = (30)(3) = 90cm D = sqrt(x^2+y^2) = sqrt(36^2+90^2) = sqrt(9396) ~ 97 cm

Can confirm, Alejandra is correct - D is the right answer. Just finished World History unit 3 exam

Just tried D on my test and was incorrect, just fyi

(1/2)m1(v^2)=m2gh m1= mass of the bullet (0.005kg) m2=mass of the pendulum + bullet (5.005kg) h=(m1)(v^2)/(m2)(g) h=(0.005)(50^2)/(5.005)(9.8) h=0.255m

Forgot to multiply the bottom by 2, h=0.127423

For me number 4 was multiple answer

ms sue, you are wrong. I ended up getting a 65 on my test because I trusted you to help me. You have failed me, ms. sue. I'm starting to doubt if your real name is even ms. sue.

Dude ill give you a hint, a prepositional phrase can be an object.

bro help a homie out, please

Bra what....... im in yr 6 on thats easy as...... lol

Hypotheses my be generated from any of the following expect