Thursday
September 18, 2014

Posts by steven


Total # Posts: 445

physics
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.850 m/s at an angle of 34.3° above the table, and it lands on the magazine 0.0780 s after leaving the table. Ignore air resistance. How thick is the magazine? ...
September 13, 2014

Physics
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.53 m. The stones are thrown with the same speed of 8.62 m/s. Find the location (above the base of the ...
September 13, 2014

Physics
How long is Mayra, a ballerina, in the air when she leaps striaght up with a speed of 1.23 m/s?
September 11, 2014

MAT 222
-10 < -2 + 8x < 22 compound inequalities
June 23, 2014

Chemistry
how many moles of oxygen are needed to react with 3.5 moles of isopropyl alcohol, C3H7OH
June 5, 2014

Multiple Choice
Physics 2. Which of the following is equivalent to one ampere? (Points : 1) 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s Question 3.3. A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point? (Points : 1) 2.0 s 5.6 s...
May 8, 2014

math
write and solve an equation to find the missing dimension of the rectangular prism. Volume= 1km cubic L=3/4 km W=2/3 km H= ?
April 28, 2014

Biology
your welcome
April 28, 2014

Biology
yes its hard to pick between b and d.
April 28, 2014

Math
0.30 rounded
April 28, 2014

Math
7x7x2=28 cubic inches
April 28, 2014

Math
A calendar that has one page per day is 7 inches long, 7 inches wide, and 2 inches high. What is the volume of one page of the calendar? Round your answer to the nearest thousandth.
April 28, 2014

Math
help MS.SUE
April 28, 2014

Math
what happens to the volume of a rectangle if you multiply the length, the width, and the height by 2?
April 28, 2014

Math
HELP!!!!!!!!!!!!!!!!!!
April 28, 2014

Math
What happens to the volume of a rectangular prism length, the width, and the height by 2?
April 28, 2014

math
HELP PLS I NEED TO DO HOMEWORK.
April 28, 2014

math
A cube with side length 4 centimeters is 25% full of sand.What is the volume of the sand?
April 28, 2014

Math
A filling cabinet is 35 centimeters by 70 centimeters by 115 centimeters. The bottom drawer is 30% of the volume of the filling cabinet. What is the volume of the bottom drawer?
April 28, 2014

reading
YES good job! Nice Essay! i would give it an A+
April 28, 2014

reading
i would add "Many woman suffer but Ida Tarbell changed that".
April 28, 2014

reading
youre right i agree
April 28, 2014

Science
1. How does sea-floor spreading occur? A. New materials are being added to the asthenosphere. B. Earthquakes brake apart the ocean floor. C. Sediments accumulate at the area of spreading. D. Molten material beneath Earth's crust rises to the surface.*
April 22, 2014

math
The director of the center has asked you to design a garden. The director has asked you to design different sections of the garden that meet the following: Section 1 must be shaped like a square. Section 1 must have an area between 26 square feet and 50 square feet. section 2 ...
April 13, 2014

chemistry
You need to determine the concentration of a sulfuric acid solution by titration with a standard sodium hydroxide solution. You have a 0.1896 M standard solution. You take a 25.00 mL sample of the original acid solution and dilute it to 250.0 mL. You then take a 10.00 mL ...
April 11, 2014

science
Describe DNA replication in prokaryotes. Include the major steps for origins of replication, unwinding DNA, and synthesis of new strands. Include at least 1 simplified diagram.
April 8, 2014

science
Using your knowledge of physiology, genes and evolution, discuss organism adaptations to the environment using clear and specific examples.
April 8, 2014

science
22. Given that humans thermoregulate, explain why your skin is cooler than your body core.
April 8, 2014

Math
Monique is making cookies for the pajama party at her house. She has 3-1/2 cups of sugar. The recipe calls for 3/4 cup of sugar for one batch of cookies. Write an equation that can be used to find c, the total number of batches of cookies she can make.
April 7, 2014

Math
What is the distance between (-2,-5) and its reflection over the x-axis?
April 7, 2014

Math
thanks
April 7, 2014

Math
At a baseball stadium, every eighth person received a coupon for free popcorn. Every thirtieth person received a free hot dog. WHich person was the first to receive both free gifts?
April 7, 2014

Physics
All I'm looking for is confirmation that I correctly solved the problem. I know that I can use the formula: λ(wavelength) = v/f When I put in the numbers it gives me 5.666666666666667, which I then round up to 5.7. Is 5.7m the correct answer?
March 19, 2014

Physics
Bats chirp at a high frequency which humans cannot hear. They use the echoes to detect small objects, such as insects, as small as one wavelength. If a bat were to emit a chirp at a frequency of 60.0 kHz and the speed of sound waves in the air are 340 m.s, what is the size in ...
March 19, 2014

chemistry
thank you!
March 17, 2014

chemistry
A laboratory instructor gives you a test tube containing Ag+ ,Ba 2+ , and Cu 2+ ions. Devise a reaction scheme that would allow you to selectively precipitate each of these ions. Write a balanced net ionic equation for each precipitation reaction.
March 17, 2014

college chemistry
Copper(II) sulfide reacts with oxygen to produce copper (II) oxide plus sulfur dioxide. Suppose you start this reaction with 50.0 grams of copper(II) sulfide and 50.0 grams of oxygen and you actually produce 33.5 grams of copper(II) oxide. Calculate the percent yield for the ...
March 5, 2014

chemistry
Copper(II) sulfide reacts with oxygen to produce copper (II) oxide plus sulfur dioxide. Suppose you start this reaction with 50.0 grams of copper(II) sulfide and 50.0 grams of oxygen and you actually produce 33.5 grams of copper(II) oxide. Calculate the percent yield for the ...
March 5, 2014

science
Two forces of 5 N and 12 N respectivlely act on the same point. Show how to determine the magnitude of the resultant by using the tail to head and tail to tail methods and pythagoras theorem.
February 22, 2014

civics
In the Battle of _______, a disastrous charge against forces holding Cemetery Ridge led to Confederate defeat.
February 20, 2014

Math
Never mind, I figured it out myself!
February 5, 2014

Math
P.S. Double Bogey +2 Bogey +1 Par 0 Birdie −1 Eagle −2 (you might need this)
February 5, 2014

Math
I don't really understand this, could someone help me solve it? a) In her first round as a professional golfer, Michelle Wie made 12 pars, 4 birdies, and 2 bogeys. Refer to the chart of golf terms on page 336. How many strokes above or below par was she that round? b...
February 5, 2014

Math
A) 1/4 B) 1.25 pounds C) 8 Ounces (oz)=1 pound,approx 1.6 or 1.7 pounds per bird feeders. See if you can figure this on your own
February 5, 2014

computer Science
17 You purchase a used optical drive from a second and store replace a single optical drive that has gone bad on your desktop. How would you set the jumper? a. Single b. Cable select c. Master d. Slave
February 3, 2014

computer Science
17 You purchase a used optical drive from a second and store replace a single optical drive that has gone bad on your desktop. How would you set the jumper? a. Single b. Cable select c. Master d. Slave
February 3, 2014

computer Science
14 Your brother is going to serve in the military overseas for four years and asks you about storing his computer in a public storage facility while he is away. The storage unit is not temperature controlled. What could be the negative impact of doing this? a. The internal ...
February 3, 2014

computer Science
14 Your brother is going to serve in the military overseas for four years and asks you about storing his computer in a public storage facility while he is away. The storage unit is not temperature controlled. What could be the negative impact of doing this? a. The internal ...
February 3, 2014

Science
and also how? (if it even does)
February 2, 2014

Science
Does foam prevent convection? If not, what does it prevent? (radiation and conduction)
February 2, 2014

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
January 28, 2014

computer Science
18 You started your new job as a PC tech and are at a customer’s house. The computer has failed to boot. The fan is running but the POST fails every time. What is the best thing to do to possibly find quickly? a. Check the electrical outlet the computer is ...
January 28, 2014

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
January 22, 2014

psychology
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed...
January 22, 2014

Discrete Math
A bag contains 5 red marbles, 4 yellow marbles, 3 green marbles, 2 orange marbles and 2 purple marbles. If three marbles are removed, what is the probability that at least one of them is red?
January 19, 2014

Math
Ignore this one, I accidently posted a second one
January 12, 2014

Math
How would you find the area of a shape shaped like a candy cane?
January 12, 2014

Math, area
Ok, thanks!
January 12, 2014

Math, area
one of those oval shaped, racecar/track and field tracks
January 12, 2014

Math, area
Along with this question, how would you find the area of the outer-part of a racing track?
January 12, 2014

Math, area
How would you find the area of a shape shaped like a candy cane?
January 12, 2014

math
5 quarters (1.25)+23 dimes(2.30)
January 12, 2014

social studies
I was wondering, what are some similarities between Hudson Bay Company and the Northwest Company
January 7, 2014

math help please...
1.You want to use the interval method to solve a rational inequality. Explain how to find the intervals. 2.Explain how the interval method works. 3.Explain in your own words what a reciprocal function is.
January 6, 2014

thank u steve
thanks
January 6, 2014

someone help me fast please...
someone do it fast please i need it tomorrow, please do it.
January 6, 2014

math
1.How is the maximum or minimum point of the original quadratic function related to the maximum or minimum point of its reciprocal function? 2.How can you use the leading coefficient of the original quadratic function to tell you whether its reciprocal will have a maximum or ...
January 6, 2014

geometry
what is the area of a hexagon with a base of 11m to the nearest whole number?
January 3, 2014

math
spencer morris works in the telemarketing division for a company that pays a salary of $735 per hour plus a commission of 3 1/2 of all sales greater than $15,500. if he sold $45,900 last month. what was his total gross pay? weggy
December 27, 2013

statistics
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 20, 2013

MATH Statistics
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 20, 2013

statistics 3.
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 17, 2013

statistics 4.
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 17, 2013

statistics 3.
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 17, 2013

statistics 4.
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 17, 2013

Statistics 4
The manufacturer of Porshe 918 Spyder car claims that their car can go from 0 mph to 60 mph speed in less than 2.5 seconds. To test this claim, a sample of 40 new cars of this type were driven and their average 0-60 mph time was 2.6 seconds with a standard deviation of 0.5 ...
December 16, 2013

Statistics 3
A student union wants to obtain a 90% confidence interval for the proportion of “full time” students who hold a part-time job for 20 hours or more per week. For this purpose, they want to interview a sample of full-time students. They want a margin of error to be at ...
December 16, 2013

Statistics 2
The body temperature of healthy human beings can be assumed to have a normal distribution with mean  and standard deviation . Body temperature measurements taken from a sample of 130 healthy individuals shows the sample mean temperature to be 98.249O F and ...
December 16, 2013

Statistics
How would you check the Z table for the first problem?
December 16, 2013

Statistics
A manufacturing facility produces iron rods whose mean diameter is 2.5 inches with a standard deviation of 0.2 inch. If a sample of 50 metal rods produced by the facility were randomly selected, what is the probability that the mean of these rods will lie between 2.4 inches ...
December 16, 2013

Psychology
17 Albert Ellis depicts the relationship between irrational belief and negative emotions through use of: a. a contingence contract. b. dialectrical theory. c.the A-B-C model. d. observational learning.
December 9, 2013

Psychology
4 The big Five in personality theories refers to which of the following? a. a set of functional traits such as neuroticism and openness to experiences. b. the group of personality theorists who criticized Freud's theory as too sexual. c. The effect of positive ...
November 22, 2013

Psychology
1 In Psychology, the study of personality focuses on: a. change. b. stability. c. external factors. d. learning factors.
November 22, 2013

Psychology
4 The big Five in personality theories refers to which of the following? a. a set of functional traits such as neuroticism and openness to experiences. b. the group of personality theorists who criticized Freud's theory as too sexual. c. The effect of positive ...
November 22, 2013

sychology
2 Carl Jung's idea of the collective unconscious state that we share: a. inherited universal ideas, wishes and memories. b. common learned experiences in childhood or infancy. c. tendencies to sacrifice ourselves for the group. d. ideas that arise from, and are specific to...
November 21, 2013

Math Statistics
A company sells cans of chicken soup that that are advertised to contain 20 oz. However due to variations in the manufacturing process, the volume of soup in the cans is, in fact, Normally distributed with a mean of 20.1 oz and a standard deviation of 0.4 oz. • What is ...
November 14, 2013

Math
Suppose a random variable X has a uniform distribution over the interval [-10,10]. • Find the probability that X lies between -2 and 6? • Find the probability that X2 lies between 9 and 64? (Note X2 is the square of X.)
November 13, 2013

Statistics Question 3
A company sells cans of chicken soup that that are advertised to contain 20 oz. However due to variations in the manufacturing process, the volume of soup in the cans is, in fact, Normally distributed with a mean of 20.1 oz and a standard deviation of 0.4 oz. • What is ...
November 13, 2013

statistics Question 2
Suppose a person buys 100 shares of stock at in a company at the cost price of $10 per share. He plans to sell at the end of the next month at whatever is the price at that time. The projected price of the stock at the end of next month and the corresponding probability of ...
November 13, 2013

Statistics Question 1
According to the American Heart Association, one in every four deaths in the U.S. is due to heart disease. Suppose 25 people will die in the U.S. in the next 5 minutes. • What is the chance that exactly 5 of the deaths will be due to heart disease? • What is the ...
November 13, 2013

Statistics
Are you sure that is the variance. I got .14
November 13, 2013

Statistics
Suppose a person buys 100 shares of stock at in a company at the cost price of $10 per share. He plans to sell at the end of the next month at whatever is the price at that time. The projected price of the stock at the end of next month and the corresponding probability of ...
November 13, 2013

statistics
According to the American Heart Association, one in every four deaths in the U.S. is due to heart disease. Suppose 25 people will die in the U.S. in the next 5 minutes. • What is the chance that exactly 5 of the deaths will be due to heart disease? • What is the ...
November 13, 2013

Statistics
Suppose a random variable X has a uniform distribution over the interval [-10,10]. • Find the probability that X lies between -2 and 6? • Find the probability that X2 lies between 9 and 64? (Note X2 is the square of X.)
November 13, 2013

Math
Rob practiced 3/5 of his music in 25 minutes. About how long did it take him to practice all his music?
November 13, 2013

Psychology
1 In Psychology, the study of personality focuses on: a. change. b. stability. c. external factors. d. learning factors.
November 12, 2013

Psychology
9 Dr. Kyle shared the newspaper clipping with the class. “This is an unusual case, but I believe that punishment phase of the trail would have been different in another state. The crime was committed, but the defendant is not in touch with reality most of the...
November 12, 2013

reading
a host of golden daffodils
October 25, 2013

reading
what metaphor is in the poem dafffodils by william wordsworth ?
October 25, 2013

reading
what assonance is in the poem daffodils by william-wordsworth?
October 25, 2013

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