Friday

July 25, 2014

July 25, 2014

Total # Posts: 178

**Math**

the time required for one complete oscillation of a pendulum is called its period. if the length L of the pendulum is measured in feet and the period P n seconds, then the period is given by P=2¶(L/g)^1/2, where g is constant. use differentials to show the percentage erro...

**calculus **

the time required for one complete oscillation of a pendulum is called its period. if the length L of the pendulum is measured in feet and the period P n seconds, then the period is given by P=2¶(L/g)^1/2, where g is constant. use differentials to show the percentage erro...

**english**

I am trying to figure out details as to when groom service (short story) has taken place any help with examples would be great or even a lead? Ive read the story numerous times and I know it was before th 1940s but I cant figure out further.. I have found that the story includ...

**Medical ethics**

What should I expect from this course. The title pretty much explains it but I would like some more detailed information please

**College Chemistry**

A solution is saturated in both nitrogen gas and sodium iodide at 50 degrees C . When the solution is cooled to 25 degrees C what is most likely to occur?

**algebra word problem**

A long distance runner starts at the beginning of a trail and runs at a rate of 5 miles per hour. One hour later, a cyclist starts at the beginning of the trail and travels at a rate of 13 miles per hour. What is the amount of time that the cyclist travels before overtaking th...

**math algebra**

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 115 miles per hour. The westbound train travels at 95 miles per hour. How long will it take for the two trains to be 504 miles apart?

**Science (Physics)**

On the moon, the acceleration due to gravity is only 1.6 m/s/s. If someone on earth can throw a baseball 24.2 m high, how high could she throw it on the moon?

**Algebra **

Solve using substitution method 3x+8y=20 x=24-7y

**general science**

how to explain how the mass of a rock could be found

**Geometry**

A farmer has 52 meters of fencing to make a rectangular corral. If the width is x, what is the length and area?

**calculus**

The height of a projectile launched into the air is given by h (t)= -16t^2 + 48t + 60, where h is the height of the projectile in feet above the ground and t is the number of seconds after its launch. Find the *instantaneous rate of change* in the height of the projectile at 1...

**algebra**

You are asked by the Pharmacist to add 45mEq of Ca Gluconate in an IV bag of D5% W1000ml. You have a concentrated vial of Ca Gluconate 4.4mEq/ml 50ml. How many ml of the concentrated vial needs to be added to the IV bag?

**physical sciene**

Two 2.2 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?

**physical sciene**

Neglecting air resistance, how fast is the object traveling when it strikes the gounnd at the end of 3.8s?

**business law**

Assume that the state of Kansas passes a law requiring all inline skates sold in Kansas to have disc brakes. Assume that there are no federal regulations covering inline skate design. Assume also, that the required disc brakes would make inline skates easier to stop and thus s...

**PHYSICS HELP!**

(A) w = (21rev/min) * (1min/60sec) * (2pi rad/1rev) = 2.2 rad/s (B) I = MR^2 I = (415kg)(33m)^2 I = 4.52E5 (I for one propeller) I for all three propellers = (4.52E5) * 3 = 1.36E6 (C) KE = (1/2) * Iw^2 = (1/2)(4.52E5)(2.2)^2 =1.1E6 J The book gives solutions for I and KE using...

**algabra**

why are prime numbers beter when writing codes?

**Physics**

In a serious accident,a neclear plant's reactor vessal cracks,and all of the cooling water drains out.Although nuclear fission stops,readioactive decay continues to heat the reactor's 2.5 x 10^5 kg uranium core at a rate of 120 Mega-Watts.Once the core reaches its melt...

**physics**

Doubling the frequency of a wave source doubles the speed of the waves. ( True or False)

**physics**

As these waves pass through their medium,is the medium carried along with them ?

**physics**

As the wavelength of a wave in a uniform medium increases, its speed will ?

**physics**

Which part of a wave relates to its energy ?

**PHS**

As these wave pass through their medium,is the medium carrief along with them ?

**PHSC**

As the wavelength of a wave in a uniform medium increases, its speed will ?

**PHSC**

Which part of a wave relates to its energy ?

**PHSC**

In a simulation on earth,an astronaut in his space suit climbs up a vertical ladder.On the moon,the same astronaut makes the same climb.In which case does the gravitational potential energy of the astronaut change by a greater amount?

**PHSC**

Explain the difference between the everyday use of the word "work" and the physical (physics related)use of the word "work".How is energy related to work?

**PHSC**

Explain how you could move an object and still do no work.

**phsc**

A satellite explodes in outer space, far from any other body,sending thousand of pieces in all direction.How does the linear momentum of the satellite before the explosion compare with the total linear momentum of all the pieces after the explosion ?

**phsc**

When you are driving a golf ball,a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept incontact with the ball as long as possible.Why does this technique allow you to hit the ball farther ?

**phsc**

You have a choice,you may get hit head-on by either an adult moving slowly on a bicycle or by a child that is moving twice as fast on a bicycle.The mass of the child is-one-half that of the adult on the bicycle.Which collision do you prefer ?

**phsc**

Two identical cars have the same speef one traveling east and one traveling west.Do the cars have the same momentum ?

**phsc**

Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond.How can you move youself to the edge of the pond ?

**math**

what is the answer for each mile that jason runs alex runs 1/4 miles farther. if jason ran 6 miles how far did alex run?

**Sociology**

Can someone give me an idea to what show or movie to analyze and discuss Amercian family? Also it needs to include transitions and problems in family life, stages of family and alternative family forms. I cannot think for any show or movie off the top of my head. So any help o...

**Sociology**

How religious are the people of the United States? Do you think regilion is increasing or decreasing in our society?

**SOCIOLOGY**

What are some sacred things, persons,places, and ideas in comtemporary American society? All of these sacred elements connected with what we normally regard as religions?

**4th grade math**

Kamala had5,026 grams of flour in a canister. She bought a 4,157 gram bag of flour. She poured some flour from the bag to the canister. As a result, the mass of the flour in the canister is now twice the mass of the flour in the bag. How much is in the bag now?

**statistics**

The data set for the study is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is available via the following link: Excel 2007 DataSet with DataSet Key which contains the following nine sections of data that will be used throughout ...

**statistics**

The data set for the study is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is available via the following link: Excel 2007 DataSet with DataSet Key which contains the following nine sections of data that will be used throughout ...

**Chemistry**

A 55.81 gram irregular object made out of one of the metals in #6 raises the water level in a graduated cylinder from the 17.6 mL level to the 24.7 mL level. What is the density and identity of the metal?

**Chemistry**

I dont know the masses

**Chemistry**

Mass of weighed filter paper ? Mass of weighed filter paper plus recrystallized vanillin? Mass of recrystalized vanillin Mass impure vanillin Percent recovery Suggest how you could have improved your techniques to increase your percent recovery.

**algebra**

Factor out the greatest common factor in the expression? 11y^5-55y^2

**algebra**

2/3x-1/5y=2, 4/3x+4y=4

**algebra**

5x-2=y, 10x=4+2y

**algebra**

solve; 3x-y=-5, -2x+5y=-14

**algebra**

find the slope of a straight line that passes through the given pair of points (5,6) and (-3,1)

**algebra**

perform the indicated operation: 3/5 x 7/10

**Chemistry**

I have a 500mL flask, and I want to prepare 500mL of NaOH solution with a pH of 13.00. How many grams of Na OH do I need to put in the flask to arrive at this pH?

**Science**

the answer is SEAFLOOR SPREADING I promise

**Chemistry**

How many moles of hydrogen gas will be produced when the 0.03 g of magnesium reacts with excess hydrochloric acid?

**chemistry**

a lab experiment calls for 10% acetic acid solution. The lab has only 5% and 15% acetic solutions available. How much of each should be mixed to obtain 10 liters of a 10% solution?

**psychology**

how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior? in detailed answers please. i do not need links, i need answers.

**psychology**

what are variable that influence memory? i do not need links i need detailed answers. this is not a linking website, its supposed to give answers.

**psychology**

how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior? in detailed answers please.

**psychology**

what are variable that influence memory

**psychology**

explain the decay theory

**psychology**

explain the gestalt principle

**psychology**

how do psycho dynamic, physiological psychology, cognitive psychology, and cortical function effect aggressive behavior?

**pschology**

An article published in the "New York Times" reported the results of a large-scale study on homework for elementary school children. The study indicated that the lowest-achieving students spent more time on homework than children who received higher grades. Using wha...

**calculus**

Find the equation of the line tangent to at x=1. Give your answer in y=mx+b form as an equation. If b=0, make sure you put +0 after mx. For example, even if your answer is y=3x, type in y=3x+0.

**math**

What would your solution set be? Please be sure to show your work so that we can discuss the solutions. x + 4y = 1 2x + y = 7

**Physical Science**

Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond. How can you move yourself to the edge of the pond ?

**SPC**

A consumer organization estimates that 34% of the households in a particular community have one television set, 39% have 2 sets and 18% have three or more sets. If two households are chosen at random, what is the probability that at least one has a television set

**Physics**

Which of the following are not transverse waves? a) Wind (Airy) waves on the ocean. b) Water ripples in a small pool. c) Microwaves inside a microwave oven. d) Vibrations travelling on the string of a guitar. e) Radio waves travelling through space. f) Vibrations travelling on...

**Physics**

In a sound wave, we find a location and time when the density fluctuations are at a maximum. At this same location and time ... a) Pressure fluctuations and displacement are minimum. b) Pressure fluctuations and displacement are maximum. c) Pressure fluctuations are maximum an...

**childcare**

THATS PENN FOSTER FOR YA

**childcare**

the book said six-to eight-year-old experience a transition in cognitive ability, which permits more logical thought.

**childcare**

Six-, seven-, and eight-year-olds A. do a great deal of tattling and boasting. B. make lasting friendships. C. are seldom aggressive. D. become logical thinkers. im not sure about this one

**childcare**

Observational records that contain significant detailed information are usually in what form? A. Checklist B. Narrative C. Unobtrusive D. Outline i got d

**childcare**

Which of the following observations of children is the most objective? A. Chris took a toy truck from Alex. Alex cried, became angry because Chris took the truck, and then stamped his feet on the floor. He snatched the truck back from Chris, and ran to the caregiver. B. Eddie ...

**childcare**

Children develop to their potential when caregivers have A. realistic expectations. B. strong values. C. a philosophy. D. regulations. i got a

**childcare**

One of the most important factors in a caregiver's ability to provide quality care is A. good business sense. B. patience. C. knowledge of child development. D. experience in the field. i got b

**childcare**

2. Rachel's parents enrolled her in your after-school program in September. In October, Rachel and another girl named Callye started planning a holiday play for December. They worked on the plan everyday. Soon they became inseparable. In December, parents were invited to w...

**childcare**

When preparing an environment for school-aged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually challenge their physical abi...

**chemistry**

calculate the molarity of the solution- 0.56 mole of BaCl2 in 100.0mL of solution.

**algebra**

4 - 2y > 7 - 2y Can this be solved? I believe there is no solution

**Algerbra**

Suppose your profit for one day is $1,565, and the cost of running the business for the day is $1,230. What is the revenue for that day? What is the formula to find the answer?

**COM/155**

Review pp. 517–520. Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives Just wanted to know if this is correct or do I need to revise....

**Com 220**

I need help in how do I go about incorporating statistics, graphs and iiustrations. My topic is about probation is apporiate for drug offenders

**phy**

During an isovolumetric process, the pressure on the gas is doubled and the amount of gas is tripled. If the initial temperature of the gas is 300k, what is thefinal temperture.

**phy**

2 kg of water at 5 celsius is added to ice at 0 celsius. The ice and water make up a closed system. Calculate how much of the ice melts

**math**

44/53=?/13 (fill in the ?)

**6th grade,social studies**

jhsavbnh

**COM/155**

Thanks for you help!!!

**COM/155**

I wrote these 5 sentences for a assignment and would like some feeback on them as to what I may need to work on. 1.Our education plays (simple present tense) a major role in our future finances. 2.My financial planning class opened (simple past tense) my eyes to my unnecessary...

**math**

how can you write each improper fraction as a mixed number in simplest form.

**PHYSICS**

a) At T = 12°C, how long must an open organ pipe be to have a fundamental frequency of 300 Hz? i got answer for part a that is .5642m but did not get for part b. (b) If this pipe is instead filled with helium at 20°C, what is its fundamental frequency? Hz

**PHYSICS**

A bat flies toward a wall at a speed of 3.5 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 30.5 kHz. What frequency does the bat hear in the reflected wave? kHz

**Physics**

A 1.5 kg basketball is thrown to the floor. At the moment it first hits the floor, the basketball has a velocity of 6 m/s directed 45° below the horizontal. In contact with the ball for 0.1 seconds, the floor exerts upon the ball a force of 135 N directed 110° above th...

**5th grade math**

write each improper fration as a mixed number in simplest form.

**physic**

a SHO has a maximum speed of 5m/s. How fast will it be going when the potential energy is seven-ninths of the kinetic energy.

**phyics**

a SHO has a maximum speed of 5m/s. How fast will it be going when the potential energy is seven-ninths of the kinetic energy.

**algebra**

when you look over an unobstructed landscape or seascape, the distance to the visable horizon depends on your height above the ground. The equation is a good estimate of this, in which d=distance to horizon in miles and h=height of viewer above the ground, in feet.. It is poss...

**algebra**

A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40cm wide rolls that are cut to fit between the rafters in the attic. If the roof is 6m from peak to eave and the attic space is 2cm high at the peak, how long does ...

**math**

5.5

**Math **

How do I graph 35-5y=0?

**algebra**

I need help with this problem. (7-x)(9-2x) This is the answer I came up with. Please let me know if I'm right. x^2-23*x+63