# cynthia

Newest questions posted by cynthia-
## Life orientation

What are the impact of risk behaviour? -
## CHM101

Alkali metals can be used for all but one of the following -
## College PHYsics

Felix Baumgartner, an Austrian skydiver, jumped from a balloon at an altitude of 38,963.3 meters, and fell into history. He was in free fall for 4 minutes 19 seconds, and on the way down reached the speed of 1,357.64 km/h What if there had been no air? How -
## Math

Twice n,less three,equals 5 How do you write it as an equation? -
## mathvariation! Pls I need help! 2(steve,reiny,reed)pls

the distance covered by a falling ball varies as the square of the time taken.if a ball falls through 1800m in 15seconds,calculate the distance when the time taken is 15seconds and the time taken for is distance of 648m.? -
## cynthiavariation 2(steve,reiny,reed)pls I need help!

yea! D question was d one u asked me 2 put d first height! -
## mathvariation 2(steve,reiny,reed)pls I need help!

pls steve I dnt understand! Explain how d alphabets? Wat are they representing? -
## mathvariation 2(steve,reiny,reed) pls I need help!

the force E needed to make a machine pull a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find the: A)law connecting the load and the -
## variation! Steve pls check my solution!!!

what if d maths is done like dx? L=km/h When L=40,m=175,h=286, (skipping the units) 40=k(175)/ 286 K=286(40)/175=2288/35 L=2288/35=250/50 L=114400/8750 L =13.1m -
## maths

tanks reiny!!! I appreciate!!! -
## variation

the load which a crame can lift up is directly proportional to the mass and inversely proportional to the height through which the load is to be lifted.if a load of 40 and mass of 175gm is lifted through height of 286m,from what load will be carried -
## math

the load which a crame can lift up is directly proportional to the mass and inversely proportional to the height through which the load is to be lifted. If a load of 40 and mass of 175gm is lifted through height of 286m from what load will be carried -
## CHEMISTRY

WHY A CONICAL FLASK CONTAINING A HOT SOLUTION IS NOT TIGHTLY STOPPERED TO PREVENT SOLVENT LOSS DURING COOOLING. -
## calculus

A variable force of 7xâˆ’2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done in moving the object from x = 1 ft to x = 19 ft. (Round your answer to two decimal places.) -
## Chemistry

Find the number of miles of calcium chloride 0.44g -
## Math

The sum of a number and 10 is -10 -
## Math

Carolyn plans to use her 25% employee discount to buy a $39 lamp because she is redecorating her bedroom -
## Algebra

The sum of a number and 10 is -10 -
## math

The normal to the curve y = ax^1/2 + bx at the point where x = 1 has a gradient 1 and intercepts the y-axis (0,-14). Find a and b -
## english

Some people have more than 100 and some have none...what am i -
## geography

Social effects of poor service delivery. -
## Language arts Participial Phrase

In the following sentence, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly everyone annex heard her -
## Science HELP PLEASE!!!

I cant get this stupid question, this is disgusting and I just want to get this over with. What the word for when blood rushes towards your penis and gets bigger. A. Erection B. Sperm C. Vagina D. Puberty -
## Math

Rick made $33000 last year he also made $3000 selling vases at craft shows.which part of rick income is fixed income? -
## Math

If no digit may be used more than once, how many 2-digit numbers can be formed using only the digits 5, 6, 3, and 2? -
## physics help

A homogeneous disk of mass m and of radius r free to rotate without friction about its horizontal axis, is used used as a pulley. An extensible string of negligible mass is wound around this pulley and a mass M is connected to its free end. When the system -
## chemistry help plz

A potassium permanganate solution containing 1.58g of KMnO4 per liter is added into 5 ml of an acidified iron (||) sulfate solution. Decolorizing of KMnO4 solution has been added .Calculate the mass of FeSo4.7H2O which has been dissolved in one liter of -
## Algebra

I don't have a close about this question !!!!!!!! It takes you 3 hours to drive to a concert 135 miles away. You drive 55 miles per hour on highways and 40 miles per hour on the rest of the roads. How many miles do you drive on highways? The rest of the -
## Physics

You have a boat that is capable of moving at 10.4 m/s through still water. You wish to cross a river that flows due west at 2.8 m/s. At what numerical compass heading must you pilot your boat so that you will reach a destination that is due south of your -
## think tac toe 2 adding and subracting decimals 2.

Tim tracked the change in outside temperature one afternoon. He record a temperature of 98.3 degrees at noon. Bathe temperature then rose 5.32 degrees f over the next four hours at 5:00 pm. Tim recorded a temperature change of 108.57 degrees F, How did the -
## math

(For this, i know the equation for constant of variation is y=kx, but i just forgot how to solve it)For the eqaution -4y=8x, what is the constant of variation? A. -4 B. -2 C. 1 D. 2 -
## Math

If n represents a number, write an expression for one-half of three less than the number. -
## physics

an object of mass 10kg moves in a circle of radius 13m of uniform speed of 43m\s a) calculate the angular velocity b) the centripetal force -
## Physics

A 1-m-tall barrel is closed on top except for a thin pipe extending 6.0 m up from the top. When the barrel is filled with water up to the base of the pipe (1 m deep) the water pressure on the bottom of the barrel is 10 kPa. What is the pressure on the -
## algebra

1. Given the line with the equation : a) Find at least three ordered pairs that satisfy the equation. b) Find the slope of the line. c) Graph the line 2. Given the line with equation : a) Write the equation in slope-intercept form. b) State the slope of -
## Language arts

What is the principle part of the italicized verb in this sentence (suppressed) from "The Story-Teller"? The aunt suppresed a gasp of admiration. A. Present B. Present participle C. Past D. Past participle I think it's D.....But im lost on the meanings of -
## maths

the third term of an AP is 5 while the 7th term is 13 find the 30th term of the AP -
## new era

the third term of an AP is 5 while the 7th term is 13,find the 30th term of the AP -
## Chemistry II

How many grams of gasoline would you need to burn if you started with a 275 gram piece of ice that started at -25 OC and by the end of the experiment had 100 grams of steam and the rest liquid water? -
## Science

What is the similarities between conduction and radiation What is the similarities between convection and radiation -
## Math

John has 4 cups filled with fruit juice.He said that he has a gallon of fruit juice.Is his statements reasonable?explain why or why not. -
## math

Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey.results of the survey indicated that 8 students own a cat, 15 students own a dog and five students owned neither a cat or a dog. how many of the students surveyed owned -
## math

bobs monthly phone bill is made up of a 10.00 fee plus $0.05 per min.bobs phone bill for july was 22.00 write an equation to model the situation using m to represent the number of min. solve the bequation to determine the number of phone mins.bob used in -
## Early Childhood

Question 17 of 20 5.0 Points A possible explanation for a child who lacks practice in auditory analysis and reasoning skills is: A. that both parents are working. B. the passive lifestyle of watching TV. C. a learning disability. D. a lack of good -
## Early Childhood

Small group discussions with preschoolers enables them to: A. find out if they are superior. B. learn to argue. C. outsmart the others and gain teacher attention. D. compare their ideas with peer ideas. -
## Early Childhood

A preschooler with a vocabulary of about 4,000 words would be considered: A. a slow developer. B. advanced. C. very advanced. -
## physics

An unknown substance with a mass of 300 g absorbs 1000 j of heat while undergoing a temperature increase of 15 degrees c. What is the specific heat of the unknown substance ? -
## Math

Ben is making wooden toys for the next art and craft sale each toy cause Ben $1.80 to make. If he sells the toy for three dollars each how many will he have to sell to make a profit of exactly $36? -
## IPC

If the specific heat of water is 1.0 calorie/gram°C, how many calories are required to raise 500 grams of water 10.0°C? -
## ecnomics

4.During the energy crisis of the 1970s, and again in the last 5 years, Congress bemoaned the “price gouging” and “windfall” profits of the major oil companies. In the 1970s Congress imposed an “excess profits tax” on these companies. It did -
## global, history

5 contributions of Ancient Greece to modern society -
## Chemistry

when 2 moles of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at a constant pressure and temperature, 78.0 kj of heat is given off. write a thermodynamic equation for this reaction.I don't know how to set up the -
## physics

A ball starts from rest and rolls down a hill with uniform acceleration, traveling 200m during the second 4.8s of its motion. How far did it travel the first 4.8 seconds -
## math

An optometrist dilates a patient's pupils by a scale factor of 3. Should the patient's pupil enlarge or reduce? -
## Social Science - Science

Post a behavioral research situation that could use a Pearson coefficient and chi square research study. Present the rational for each selection. -
## chemistry

Calculate the volume that4.0mol of an ideal gas would occupy at 8.0 atmospheres pressure and 1700c (R=8.31mol-1k-1) -
## life orientation

Identify 3 study fields/paths in order of preference and provide two reasons for each choice -
## math

For a motor vehicle traveling at r miles per hour, the distance d in feet required to stop is approximately d=0.05r^2 + r. If a school bus is traveling at 45 mph, how many feet, to the nearest foot would it travel? -
## Child care

What fundamental motor patterns do girls attain quicker than boys -
## statistics

the life spans of three randomly selected tires are 31,400 miles, 40,600 miles and 36,000 miles. Using the empirical rule, find the percentile that corresponds to each life span. -
## English 101

memo given in which there was no punctuation...only sentences. Please let me know if I have put the semicolon, etc in right place and if third shift should be hyphenated. Thanks!!! Our production plant has made the decision to run third shift and weekends -
## English 101

Is this memo correct (semi-colon) in right sentence and time/date correct? Thanks! There were no punctuations at all when we were given this. We are going to make a few changes in the health plan we now offer; The Economy Plan and the Standard Plan—both -
## English 101

just wanted to make sure there should be a comma between one-level and brick. Also, three and two should be spelled out. There is one home that I think would meet your needs the best. This home is located at 8 Second Avenue; it is a one-level, brick home -
## english

Is the following sentence correct? This home is located at 8 Second Avenue; it is a one-level brick home with three bedrooms and two baths. -
## algebra

(a1/2b)1/2(ab1/2) how to simplify expression and write with positive exponent -
## chemictry

how many gramms are in barium carbonate with 200g and 7.3% of hydrochloric solution -
## life orientation

providerecommendations on how to address the topic that you identified in the previous question. -
## math

8. At TelePower Plus, long-distance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call -
## calculus

39x + 75y over the square root of 97 =650 how do I solve this? -
## business

an attempt to minimize the problem of wage-rate compression, organizations may incorporate all of the following ideas except: Answer giving larger increases to high-performance employees. preparing high-performance employees for promotion to high- salary -
## statistics3. Sick-leave records obtained from a ra

3. Sick-leave records obtained from a random sample of 200 social workers showed a mean number of days sick leave equal to 25.6 last year. If the sample standard deviation is 5.1, construct a 90% confidence interval for the mean number of days sick leave -
## chemistry

if a gallon of antifreeze weighs 8.75 pounds. what is the density of the antifreeze in g/ml? -
## math

a person deposits five hundred dollars in a savings account that pays 5% annual interest that is compounded yearly. At the end of ten years, how much money will be in the savings account? -
## statistics

A study found that 81% of households in the United States have computers. Of those 81%, 92% have Internet access. Find the probability that a U.S. household selected at random has a computer and has Internet access. -
## physics

in order to catch a fast moving softball with your bare hand doing this reduce the catching forcebecause the what -
## physics

a frieght train rolls at the same speed but has twice as much mass its momentum is -
## physics

find the impulse on a baqseball that is hit 80N of force in a time of 0.52 s -
## Physics

A 46.6 kg crate is at rest on a level floor, and te coefficient of kinetic friction is 0.32. The acceleration of gravity is 9.8M/s^2. If the crate is pushed horizontally with a force of 201.67 N, how far does it move in 3.42s? Answer in units of m -
## math

jordan has a bag that contains 246 marbles. there are 51 brown marbles and 195 gray marbles. estimate the percent of the brown marblesin the bag. -
## physics

What is k in the formula (3/2)kT -
## physics

What is k in the formula (3/2)kT -
## Algebra 2

Simplify. (2-5i)-(3+4i) -
## Algebra 2

The numbers iã5 and -iã5 are solutions to which equation? a. x^2+ã5=0 b. x^2+5=0 d. x^2-5=0 -
## english

1.Identify the reason for the comma(s) in the following sentence: When you have the opportunity to interview for a job, you can improve your chances for consideration by dressing for success. a.To join two independent clauses (along with a conjunction) -
## Math

Find the equation of the line that passes through the pair of points. Write your answer in slope-intercept form (2,-5)(2,-1) -
## chemistry

0.0386mol glucose in 88.0ml of solution -
## Psychology

How does biological and environmental factors shape our cognitive processes? -
## Psychology

How does one's cognitive processes shape some aspects of personality? -
## Finance

You own a portfolio that has $1500 invested in Stock A and $2,600 invested in Stock B. If the expected returns on these stocks are 11.1 percent and 16.7 percent, respectively, what is the expected return on the portfolio? -
## math

bill and ted combined age is 40. Eight years ago, bill was 2 years younger than ted is now. how old is bill now? -
## Calculus

1. Locate the absolute extrema of the function f(x)=cos(pi*x) on the closed interval [0,1/2]. 2. Determine whether Rolle's Theorem applied to the function f(x)=x^2+6x+8 on the closed interval[-4,-2]. If Rolle's Theorem can be applied, find all values of c -
## grammar - sentence structure

I was wondering if you could tell me if my sentence structure using ":" and quotations is correct... Furthermore, when Howard states: “If I had a spot, I'd slap you in” (54:14), and “everybody has to pull his own weight” (54:30), he uses the -
## Precalculus

A barn has 150 feet of fencing and there are 3 rectangular corrals of identical dimensions along the back wall of the barn. The sides of each corral are attached to the barn and fencing is not needed along the back wall of the barn. If each corral is 30 -
## Precalculus

A barn has 150 feet of fencing and there are 3 rectangular corrals of identical dimensions along the back wall of the barn. The sides of each corral are attached to the barn and fencing is not needed along the back wall of the barn. If each corral is 30 -
## geometry

what is the base length of a paralleogram whose area is 52 m squared and whose height is half is based lenghth -
## Physics

Trying to be on time for class, a girl moves at 2.4 m/s down a 52 m-long hallway, 1.2 m/s down a much more crowded hallway that is 79 m long, and the last 25 m to her class at 3.4 m/s. How long does it take her to reach her class? -
## simplify expression.

|7|+|-14| -
## chemistry

_mg(OH)†? + _H2SO4._mgSO4 + _H2O -
## Trigonometry

Find the exact value of tan2(Beta) if sin(Beta) = 5/13 (Beta in Quadrant II) -
## Trigonometry

Write 2sin37(degrees)sin26(Degrees) as a sum (or difference)