# Nina

Newest questions posted by Nina-
## Physics

A certain coiled spring with an unstretched length of 20cm required a force of 2N to stretch it by 0.2cm. What work is done in stretching it by 2cm if the elastic limit is not exceeded? -
## math

A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 63 -
## Math

If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m? A) m+6 B) m+7***** C) 2m+14 D) 3m+21 -
## Physics

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1200N. F= -
## Psychology

I'm writing an essay about myself and have to incorporate the things I learned in psychology. One of them was classical conditioning. An example I wanted to use for this was seeing my mother dress up and put on makeup everytime we went to parties, so I -
## algrebra

When adding the square root of 16 and -8 which type of number is the Sum Integer Irrational number Radical Whole number -
## Math

When adding the square root of 16 and -8 which type of number is the Sum Integer Irrational number Radical Whole number -
## Math

So my question is find the circumference of the circle in terms of Pi then use the approximation 3.14 for pi and approximate the circumference. How would I do this? The radius of the circle is 2m. -
## Math

A 500-N tightrope walker stands at the center of the rope such that each half of the rope makes an angle of 10.0◦ with the horizontal. What is the tension in the rope? -
## pre calculus

how long will it take for an investment to triple if it is compounded continuously at 4.2% -
## Algebra 2

I'm having some trouble with this question, may I have some help? 6|6-4x|=8x+4 -
## Algebra 2

I'm working on Lesson 6: Absolute Value Equations and Inequalities Algebra 2 A Unit 2: Expressions, Equations, and Inequalities and feel confident in my first few answers, but beyond that am lost. May I have some help? **=the answer I believe to be true -
## English

I have a research paper due and I'm in college. It needs to be a compare and contrast and something that can be argued against. I need topics and my teacher doesn't want the basics of abortion, gay marriage, texting and driving, politics etc. I looked on -
## Physics

The spin-drier of a washing machine slows down uniformly from 880 rpm (revolutions per minute) to 260 rpm while making 50 revolutions. Find the angular acceleration through these 50 revolutions. Express your answer in rad/s2. The answer is -
## Physics

Fred Flintstone’s club–ax is made up of two parts: an uniform 2.5 kg stick and a symmetrical 10 kg stone attached to the end of the stick. The dimensions of the club-ax are shown in the figure. How far is the center of mass from the handle end of -
## Java programming

Hi, I'm trying to figure out how to implement toString() methods into the JavaTest and H2ClassB classes so that the output would be 4 3 7 5 99 3: import java.util.ArrayList; public class JavaTest { ArrayList list = new ArrayList (); public static void main -
## Trigonometry

A clown is juggling at a circus. The path of a ball is given by the parametric equations x=2 cos T + 2 and y = 3 sin T + 3. In what direction is the ball moving? Up and to the right counterclockwise down and to the right clockwise After graphing it and -
## Trigonometry

over which of the following domains is f(x) = csc(0.1x + 1.2) defined at all points and invertible? x = [0,10] x = [10,20] x = [20,30] x = [30,40] Can someone please explain how to solve this to me and show me all the steps rather than simply giving me the -
## Algebra

A ball is thrown into the air with an initial upward velocity of 60 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 60t + 6. What will the height be at t = 3 seconds? A) 3 B) 4***** C) 5 D) 6 -
## Math/Algebra

Explain the composition of an algebraic expression, 3 sentences, an example -
## Math

You rent x pairs of shoes for $2 each. You buy the same number of drinks for $1.50 each. You also pay $9 for a bowling lane. Write an expression in simplest form. -
## Algebra

Please help! Give the square and the cube of each expression in simplified form. -2t^2k -
## Statistics

Consider the population (1,3). Suppose you take all possible samples of size n=3 with replacement. What is the sampling distribution of the sample total? -
## Physics

A thin light beam is shining onto a wall. You take a solid block of glass that is 3.0cm thick and place it between the wall and the beam. The refractive index of the glass is 1.5. The angle between the beam and the surface of the block is 60° What is the -
## Physics Help please

The lecturer with a monotone voice of 440 Hz and you are both 2m away from the long, smooth and tall wall. You will hear sound that comes directly to you from the lecturer along with sound that comes back from the wall on it’s way to reaching you. You -
## help with physics

Excited by the in class experiments you put two speakers in your living room 80cm apart producing a sound of 750Hz. 4.0 m away you place a microphone right on the centerline between the speakers. Will the microphone detect a loud sound or a soft on at this -
## physics help please

The lecturer with a monotone voice of 440 Hz and you are both 2m away from the long, smooth and tall wall. You will hear sound that comes directly to you from the lecturer along with sound that comes back from the wall on it’s way to reaching you. You -
## World Geo

"Change the way people think and things will never be the same." -Steve Biko -what is the meaning of this and what made Steve Biko say this. -
## Maths

The area of rhombus is 148.8 square cm.if one of its diagonal is 19.2 cm,find the length of the other diagonals. -
## MATH

I NEED HELP WITH MY LEAP MATH MIDTEST QUESTIONS STAT! -
## History

Converted to the Mayan number system, what would be 152 and 100? I'm confused as to how it's set up. -
## Math

Two combines are able to harvest 320 acres of crops in a certain amount of time. How many acres will (a)3, (b)4, (c)6 and (d)7 combines harvest if they work at the same rate for this amount of time? -
## Math

Ok I have some math questions I need help with i'm not asking for the answer i just need help -
## math

•Explain how writing 2x-5 with positive exponents is similar to writing 2x-3/4 with positive exponents. Post a problem involving a rational exponent for your classmates to solve. -
## Math

A music store gives every 20th customer a $5 gift card. Every 50th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards? -
## Math College 115

a cat is born (age 0) weighing 3.8 ounces and at 2 years of age the cat weighs 40.8 ounces. Write answerin slope-intercept form, w=b+ma, in temrs of weight,w, and age,a. -
## Math

How do u evaluate and put 2.0*10^-7/8.0*10^-9 -
## English 2

What is the tone of the following lines in "At the Tourist Centre of Boston"? I seem to remember people, at least in the cities, also slush , machines and assorted garbage. Perhaps that was my private mirage which will just evaporate when I go back. -
## Math

Is the opposite of -4 4 -
## Math

which symbol is used to make -5 ? -8 a true statement? A > B < C = -
## algebra 2

My data has a median of 4, a mode of 3 and a mean of 3.56. Would this mean my data set was normally distributed? I think my data set is not normally distributed but can someone just check my work for me? -
## math

Determine the rate per cent per annum if Rs 6,250 amounts to Rs 6760 in six months ,interest being compounded quarterly -
## Algebra 2

What would happen to the sum of a geometric series if the ratio was 1? -
## education

why Race and Racism is essential to acknowledge in the scope of the classroom setting? what does this question mean? examples thank you -
## geometry

Identify the lateral area and surface area of a regular square pyramid with base edge length 11 cm and slant height 15 cm. -
## education

Hanson & Lynch detail how historical and present issues of race, ethnicity, language diversity, and socioeconomic background can impact equal and equitable access to education, health care, housing, food security, and community resources/services. Please -
## education

How do you feel that these images have been shaped by the family structure that you are a part of/ or ones that you have been exposed to throughout the course of your life? 3. how would you define cultural competence? Describe why cultural competence is an -
## Spanish

Escribe los pronombres que deben estar en los espacios. Juan compra flores a su abuela. Juan __ __ compra. -
## The Importance of Being Ernest

Why does Ernest/Jack and Algernon both have fake characters? I just want to clarify my answer for my study guide since they are all written responses and have no multiple choice options so my answer is below. My answer: So they both have an opportunity to -
## evaluate exptessions

2x-3y-4z= -
## eudcation

in what ways can housing program be realistically strengthened to have a more lasting impact? What are the housing program’s limitations? what is she asking. explain what the question is asking please and thank you. -
## education

How does this problem create a barrier for creating strong and healthy children in this country? problem-transportation need someone to explain and examples please. -
## education

How does this problem create a barrier for creating strong and healthy children in this country? need someone to explain please. -
## Math

Is this answer correct? 55% of x = 2 The answer I got was 40/11. -
## education

what should service providers (i.e youth and social workers) consider before intervention? what is he asking? -
## statistics

Individual M&M plain candies have weights that are normally distributed with a mean weight of 0.8565 g and a standard deviation of 0.0518 g. If you randomly select 465 M&M plain candies, what is the probability that their mean weight will be less than -
## Algebra

the perimeter of a triangle is 56 inches. the longest side measures 4 inches less than the sum of the other two sides. three times the shortest side is 4 inches more than the longest side. find the lengths of the three sides -
## Math

How long will it take me to become a millionaire with my investment of $1330.00 compounded at 18% annually? -
## Cultural Anthropology

Describe one informal and one formal means of social control that has recently been imposed/applied to you. -
## algebra

one day a store sold 18 sweatshirts, white ones cost $9.95 and yellow ones cost 12.50. in all 222.45 worth of sweatshirts were sold. how many of each were sold? -
## Math

What is 500 percent of 25? -
## science

What does the surface temperature of the water affect? -
## math

What are the prime factors of 42 and 56? Which prime factors do 42 and 56 have in common? -
## math

The factors of 3 are 1 and 3 and the factors of 5 are 1 and 5. Decide which of the following is the least common multiple of 3 and 5 and a correct description of what the value represents. -
## math

Jamie practiced the piano every four days. He had a piano lesson every nine days. When will Jamie practice and have a lesson on the same day? -
## algebra

Hi I need help with this question. I am not asking for the answer because if not I wont learn like that. I am looking for a good step by step explanation. Thank you. Solve for x: 5x + 2 = 4x − 9. -
## Math

A number has more tens than hundreds or ones. What might the number be? -
## Math

0.01+0.05 simplify the expression above. which of the following is correct? -
## education

what is this question asking. need help. today one common curriculum model is emergent curriculum or planning curriculum around what emerges from the childrens interests and experience. is this consistent or inconsistent with deweys idea about education? -
## education

what are some of the misconceptions about progressive education? -
## math

X^2-x-6/2x-6 -
## math

what is the volume of a 2 ft wide 2 ft long and 4ft high -
## algebra

Please help I have tried this question so many times: I cannot type out the exponents because my keyboard does not allow so I'll have to write it in verbal form I'm sorry. What is the simplified form of -9 m to the power of negative two times n to the -
## Medical terminology

Omar Hussain had to have part of his lung removed. This surgery is known as a _______ -
## Medical

Ms. Eubanks missed the recital because of a sore throat. This condition is known as _______ -
## Med

Daniel was rushed from the accident scene to the hospital, and in the ambulance his basic respiratory function was monitored using a ______ -
## algebra 1

Solve the system by either substitution or elimination 3x-5y=21 2x+y=1 A (2,-3) B (2,3) C (-2,-1) D (-2,1) -
## algebra

12 less than the product of 14 and b -
## English

5. In the following sentence, what is the subject complement? My neighbor is a newspaper reporter. A. Neighbor B. Reporter C. Newspaper D. My -
## English

Which verb tense indicates continuing action? -
## Physics

A 143.8-N bird feeder is supported by three cables as shown in the figure below. Find the tension in each cable. The rope on the right is 30 degrees and the rope on the left is 60 degrees. and the middle rope is connected to the bird feeder and is -
## Algebra II

A coin jar contains 3 pennies, 8 nickels, 6 dimes, and 5 quarters. If a coin is chosen at random, what is the probability of choosing a dime? a) 8/11 b) 3/8 c) 3/22 d) 3/11 So I'm confused. I solved this, but my answer was 6/22 --> 3/12 --> 1/4 (this being -
## CHM 312L

Experiment: Thermodynamics of Real Gases Chemistry 311L (Heat Capacity Ratio and the Joule-Thomson Effect) question: Imagine that you forget that an oil manometer measures pressures above atmospheric. What will happen to your calculated heat capacity -
## Math- HELP

1. Write the fraction or mixed number as a decimal 7/8 A. 0.78** B. 0.875 C. 0.8777 D. 1.875 2. 1 1/2 A. 0.50 B. 1.5** C. 1.05 D. 1.1 3. 4 3/8 A. 0.375 B. 4.35 C. 4.375 D. 4.5** 4. Write the decimal as a fraction or mixed number 0.4 A. 4/100** B. 2/5 C. -
## Technology

1. Using a graphic organizer in the prewriting process can do all of the following except: A. organize the writers thoughts B. help narrow the writers topic C. research a writers story** D. help make the writing more detailed 2. Writing a story with proper -
## Math

Not Urgent But Please Check My Answer: A pencil at a stationery store costs $1, and a pen costs $1.50. Stella spent $21 at the store. She bought a total of 18 items. Which system of equations can be used to find the number of pencils (x) and pens (y) she -
## lgebra

The sum of three consecutive natural numbers is 963, find the numbers. (A) First, write out an equation that models the relationship between these three numbers: x + ____ +______ = 963 2nd number 3rd number (B) Now, simplify the left side of your equation: -
## ALGEBRA

A rectangular room is 4.15 meters longer than it is wide, and its perimeter is 27.9 meters. Find the dimensions of the room. The length is :-------- meters and the width is -----meters. -
## reading

What is the prefix root and suffix for daintly? Am i correct? Prefix- none Suffix-ily Root- daint -
## math

What is 1/10 of 0.08? 0.07??? Am i correct? -
## reading

What is the prefix suffix , and root of the word grumbled? My answers: No prefix Led-suffix Grum root am i correct? Plz answer for all my answers and ASAP -
## language arts 5th grade

What information do you get in both a dictionaryand a glossary entry? I think basically the meaning of a word? -
## reading

Is intentionally a noun,verb,adverb? I think it is an adverb am i correct? -
## Math

Blair is decorating a birthday cake with candles. The cake has a diameter of 15 inches. She wants to place the candles about every 6 inches around the edge. How many candles will she need? How could i solve this problem? -
## Math

One tire has a diameter of 7 in and another has a diameter of 12 in. What is the difference in the distance the tires make in two revolutions? I don't get the question could you explain? -
## math

which of the following sets of line segments could make a triangle? i don't get it could you explain please a. 3,5,4 b. 1,3,2 c. 12,20,7 d.14,11,15 -
## social studies

Which type of economic institution works to provide services to a community and does not pay taxes? A bank B market C non-profit D labor union (?) -
## social studies

Which of these is an example of price competition? A a new advertising campaign B a loyalty rewards program C a special holiday sale (?) D a customer satisfaction survey -
## social studies

A company in China manufactures basketballs. A company in the United States buys the basketballs and resells them to people there. What term best describes the U.S. company? A importer B exporter C producer D consumer (?) -
## social studies

For what main reason do consumers buy goods and services? A to make money to save for later B to show show support for free trade C to help grow the economy D to satisfy their wants and needs(?)