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23,713 results, page 42

physics

Consider a drop of mass 1g falling from a height 1km.what is work done by gravity?

Algebra

Solve the following equations. Show all your work. (2 points) x/x-2 +x-1/x+1 = -1 PLZ help :D

Geometry

To the nearest tenth, find the perimeter of ΔABC with vertices A(2,4), B(-2,1) and C(2,1). Show your work.

Science

How much work is done to lift 5kg box to a vertical height of1.5m

Death of a salesman!

When Linda is left alone to herself by Willy’s grave, she cannot, at first, cry. However, when she says, “We’re free and clear” (139), she starts to sob deeply. Why? I think for any reason a wife would cry. She loved Willy. It was ironic that in the end he didn't live ...

math

1.Social Security laws allow you can collect full social security benefits at age 67 however; the law allows you to retired early at age 62 with a 30% reduced rate of benefits. If your full benefits were $1,000 a month, what would your reduced amount be at 62? You would have ...

Physics/Math

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further Reading * Physics/Math - ...

Science (chem)

Calculate the weight of water that can be removed from a wet organic phase using 50.0g of magnesium sulfate. Assume that it gives the hydrate listed in table 12.2 table says hydrated: MgSO4.7H20 I'm not quite sure how I would go about this b/c when drying a organic layer you ...

physics

Force, Work, and Rotation Question? Please Help!? You are sitting on a stool that is free to rotate without friction, and you are holding a 2.0 kg weight in each hand (ignore friction and all forces external to you + weights system). Also ignore your own moment of inertia (...

physics

The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 65 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...

Physics, van de graff generators...

When a small metal ball with a charge is placed in an electrical field supplie dby a van de graff generator, it experiences a force from the generator, and thus it applies a reaction force. But does the ball also apply a force met with a reaction force of the generator? Also, ...

Math

Is there a case when you might prefer algebraically over graphically solving a system? Why or why not? Think about the type of possible solutions and how the method might affect your choice. My answer: A case when I would prefer a algebraically would be trying to figure out ...

PHYSICS! are these correct?

How much kinetic energy does a 700-gram baseball have that is travelling at 20 m/s? What would be the kinetic energy if you doubled the mass? What would be the kinetic energy if you doubled the velocity? V1= 20 m/s K1= ½ m v1^2 = ½ (700 g)(20 m/s)^2 = ½ (700 g)(400 m^2/ s^2...

English

• Facts and figures that define the problem (the cause)? • Facts and figures that define the problem (the cause)? Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office ...

intermediate algebra

inequalities –1 ≤ x – 3 ≤ 5 –2x – 5 < –2 or x – 3 < –10 Be careful of how a negative x-term is handled in the solving process. Show all math work arriving at the solutions. •Show the solution sets written algebraically and as a union or intersection ...

math

A company that makes thing-a-ma-bobs has a start up cost of $ 1399. It costs the company $ 1.87 to make each thing-a-ma-bob. The company charges $ 5.89 for each thing-a-ma-bob. Let x denote the number of thing-a-ma-bobs produced. 1. Write the cost function for this company. C(...

math

Initially two painters are available to paint a picket fence. Peter alone could paint the fence in 6 hours; Pat alone in 3 hours. It is decided that they will work simultaneously to paint the fence. Before they start, however, along comes Mary, who alone could paint the fence ...

Physics

A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in potential energy associated ...

English

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. While most museum visitors displayed respect for the artiste's work, there ...

physics

4. Three point charges, +6.3 µC, +2.3 µC, and −3.4 µC, lie along the x-axis at 0 cm, 2.6 cm, and 5.2 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 109 N · m 2 /C 2 . Answer in ...

Physics to be solved

The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...

business

Deliverable Length: 4-6 slides with notes Think about your current or past employer (or another company you are familiar with). Using the company as a whole, or the department you are most familiar with, evaluate the extent that management utilizes the classic management ...

Socials-Improved answer

I hope I have improved this answer and made it better. Do you think that this inquest led to improvements in the working conditions for climbing boys? Why or Why not? Yes, for sure improvements were made in the working conditions for climbing boys. The parliament must have ...

Statistics

The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers sampled said they would return to work, what is our...

math plz help

The contents of a jar holds 4 red marbles, 7 blue marbles, and 5 green marbles from which you select marbles at random. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your your work. Is it 4/16 for picking red then 7/16 ...

Chemistry

Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L. w = ____ J now calculate the work done if this process is carried ...

English

1. Q1: What kind of work Orbis people have done so far: - They have traveled to underdeveloped countries to provide free eye surgery. 2. Q2: What kind of work have Orbis people done so far?: - They have traveled to underdeveloped countries to provide free eye surgery. (Which ...

Physics

A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular box is waterproof and...

Physics

A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular box is waterproof and...

Physics

A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular box is waterproof and...

geometry

An observatory has the shape of a right circular cylinder topped by a hemisphere. The radius of the cylinder is 8 ft and its altitude measures 26 ft What is the approximate surface area of the observatory? Round to the nearest foot. Show all work to receive full credit. (Hint...

Maths

Hi! I'm working on a math assignment... My teacher wants me to find rainfall data and then work out the volume of water that would fall on a roof. I've already worked out the roof area but the roof is made up of multiple squares. The teacher would like me to detail how I'm ...

college algebra

What is the answers and break down of them, Typing hint: Type x 2 as x^2 (shift 6 on the keyboard will give ^) 1) Solve the following quadratic equation by factoring: a) 7 010 2 xx =++ Answers: Show your work here: b) Solve the quadratic equation using the quadratic formula. ...

Improving your writing

REVISED, let me know what you think :) For the past three months there seems to be an ever-growing problem at our company of DMD Medical Supplies. The quality of work has been poor, the morale of various employees’ has been brought down and the workflow has been uneven ...

Language Arts ~CHECK MY ANSWERS~

Are these answer are correct? Please be 100% correct / honest. Directions: For questions 7–15, rewrite each sentence, adding commas where needed. 7) While I was researching skateboards, I found an interesting old newspaper. 8) In the June 29, 1999 edition of the Mercury ...

Physics

a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume that the rock slides ...

Algebra

An inventor of a new product believes that the cost of producing the product is given by the function C(x) = 1.75x + 7000. If the inventor charges $4 per unit, then her profit for producing and selling x units is given by the function P(x) = 2.25x - 7000 a) What is her profit ...

work

9^2x = 3^x+6 x+6-6=0 x+6 -6 you subtract 6 which is why I thought the answer was -6 since 0 wasn't right. 9^2x= 3^4x 3^4x= 3^(x+6) 4x = x + 6 solve for x. You need a tutor quickly.

Math

what is24% of 15? showing work Take 0.24 (decimal form) times 15 for your answer. I hope this will help.

chemistry

After your explanation I try to solve it, so would you please check my work again. Thank you! a)

math

Write an equation of a circle with the center(-5-8) and radius 2. We will be happy to critique your work. We are not inclined to do it for you.

Calculus

1. 10=6e 0.5t 2. 100=25(1.5)t We will be happy to try to critique your work or thinking. I have no idea what your question is.

geometery

[1.04] If B is between A and C, AB=2x-1, BC=3x+5 and AC=24, what is the value of x? Segment A C contains point B. *A=======B======*C If AC = 24; AB = 2x-1 and BC = 3x+5, then AB + BC = AC. Solve for X. Post your work if you get stuck. (2x -1) + (3x +5) = 24 5x +4 = 24 5x = 20 ...

Physics II

How much work (in joules) is done in moving a charge of 2.5μC a distance of 35 cm along an equipotential at 12~V?

Algebra 1

Write the equation of the line that passes through point(-6,14)with a slope of -3. show the work

Physical science

If you do 600 Joules of work hoisting a 20 Kg bale of hay, to what height did you lift it?

math

How do you work out: 5u-v+2w=25 3u+2v-3w=16 2u-v+w=9 I have tried loads of times already and can't get the right answer.

math

This is probably really easy to work out: x^2=(x-2)(x+3) ^meaning to the power of I've got to: x^2=x^2+x-6 Don't know what to do next

calculus

f(x)=(9x^2–8)^6(4x^2–5)^11 Find f'(x) I got (9x^2-8)^6 *11(4x^2-3)^10*8x+((4x^2-3)^11)6(9x^2-8)^5(18x) but im doing something wrong can someone check my work please

Algebra

I am having trouble with the following problem can someone please help me to figure out how to work it..... -8x-21= -23 2/3

biology

What process releases energy from food to do work,produce ATP and heatin cells?

Mason

solve each of the following equations by the square root method and show your work 4x²-20=0

math

solve each of the following equations by factoring and show your work 12x² + 15x + 10= -10x -2

math

solve each of the following equations by the square root method and show your work 4x²-20=0

math

solve each of the following equations by the square root method and show all your work

7th grade science

a group of similar cells that work together to do one job

English

* Should I finish all this work in an hour? What is the meaning of 'in'? Does it mean 'after' or 'within'?

real estate

How has Donald accumulated his wealth? What are his credentials (educational background, work experience)?

physics (emergency!)

How much work is required to stop an electron (m = 9.11 10-31 kg) which is moving with a speed of 1.99 106 m/s?

psychology 210

Consider how employers and fellow team members could use this instrument at work.

figured out problem please check my work

Kyle is 3 years old and the twins are 9

Mrs. Sue I need u

-3/5m= -45 if you can't see the m its next to the fraction sign thank you and could you please show your work

History

Could someone please check my work below where the time says 8:03. Thanks god Bless

Social Work

How can managed care limit the services a case manager is able to provide?

trig help again i cant get any of these

sin^4cos^2x=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!

Physics

What is the work required for a 1000kg truck to increase in speed from 30 m/s to 40m/s? Is the answer 350 kJ?

physics

how much work can a 50.0kg wreckin ball traveling at 5.00m/s do when striking a building

Civics

How does our government's system of checks and balances affect the work of interest groups?

algebra

I have tried to work these problem and seem to do it wrong.I need help. 3/4(5x-1/2)-5/3<1/3 could help me please. 6y+2y<-24= y=-3 is this right.

check my work please!

ok i have to divide complex numbers: question is: 1-2i+i^3/1+i this is what i did: 1-2i+i(-i)/1+i 1-2i-i^2/1+i 1-2i-i(-1)/1+i 1-2i+i/1+i 1-3i/1+i*1-i/1-i 1-i-3i+3i^2/1-i+i-i^2 1-i-3i+3(-1)/1-i^2 1-i-3i-3/1-(-1) 1-4i-3/2 -2-4i/2 my answer is -2i-1 is that right?

college math

what is the remainder when the sum 1^5+2^5+3^5+...99^5+100^5 is divided by 4? again a mod problem that I don't know how to work.

Algerbra I

Help me solve this. Please show me the work so I know how to do it. The difference between a number and twice it's reciprocal is 17/10.

algebra II

Solve the quadratic equation 12x^2 + 36a^2= 43ax by factorization Show your work

biology

i don't know what to write for my introduction for a work about the human lie cycle, please hep me

Algebra

Solve. Find the exact solution(s). Simplify as much as possible. Show work. 2x^2 + 4x – 1 = 0

Algebra Help

Solve. Find the exact solution(s). Simplify as much as possible. Show work. 2x^2 + 4x – 1 = 0

geography

How does the study of other disciplines help geographers in their work as countries become increasingly interdependent?

Geometry

Find the coordinates of the missing endpoint given that S is the midpoint of line RT. T(-4,3), S(1-,5) How do you work this out?

Alg III

Solve each absolute value equation. 3 + |x| = 5 My work: 3 + x = 5 or 3 + x = -5 x = 2 or x = -8 The book says that I am wrong. I do not know why.

psychology

How research methods are used to determine causes and solutions to psychological or work problems

math

how would i find the least common multiply of 12,20,35? i had 2 till i divided it by 25 and it did not work

Humanities

What pitfalls or potential problems do you imagine are possible? How might we work together to avoid them?

Algebra 1

-1/2<1/4+-3/4<1/8 these symbols / stand for fractios like 1/2 PLEASE SHOW YOUR WORK I REALLY NEED HELP.

science

a 49 newton rockis lifted 2meters in 5 seconds How much work is done? b what power is used?

Algebra 2 URGENT

Solve by using the quadratic formula. Please Show All Work! 4x(x+3)=15

Algebra 2 URGENT

Solve the problem using the "z" method. Please Show All Work! u^4+6=-5u^2

algebra

6x^2y^3(3xy^2)^2/xy^2 I need it answered in simplified form with showing the work how u got the answer

Physical Science

How much work is done by a crane that lowers 1000 N of material at a distance of 150 m?

Grade 8

what is a narrative mean in CASI work and can i have a example of a non fiction story

physics

A crane lifts 1 tonne of concrete through a height of 25 m. How much work does it do? (1 kg has a weight of 9.81 N.)

management

How does the local, state, or national economy affect (hospital) your business or place of work?

Stoichiometry

if you have 66.6g NH3, how many grams of F2 are required for a complete reaction? please show work!!!!!

Science

Explaining how ear defenders work using the big idea of energy transfer?

Calc

how do i begin to solve this? integral of (1/x^2)sec(1/x)tan91/x)dx I tried substituting tan(1/x) for u but i couldn't get it to work...

Precalculus(URGENT)

solve and graph the inequality using interval notation (x-4)/(x+8)<0 show work

physics

How much work must be done to increase the speed of an electron from 0.200c to 0.210c? In (MeV)

Economic

Why is demand history irrelevant for the management of raw materials and work-in-process inventories?

Computer

What is your own personal "starting point" in terms of past schooling and work experience?

7th grade

How can hardware,software,and the user of a computer work together to complete a task?

chemistry

describe the opposing forces of attraction that are at work in the dissolution of calcium chloride. which are greater?

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