# Posts by ray

Total # Posts: 612

**physics**

At the surface of a freshwater lake the pressure is 102 kPa. (a) What is the pressure increase in going 34.7 m below the surface? b) What is the approximate pressure decrease in going 33 m above the surface? Air at 20° C has density of 1.2 kg/m3.

**edu**

By text states what i posted above. I am just willing to understand why the answer is C because i was leaning toward B

**edu**

The middle-class preference for relatively small nuclear families consisting of mother, father,(or a single mother),and two or three children, is unusual when compared with families from most other non-European backgrounds. Most cultures include maternal or paternal ...

**edu**

that really doesn't say much

**edu**

Which of these scenarios best describes a nuclear family? A) Jeremiah is growing up within a cluster of adults and children who maintain their own living quarters but come together for work and meals. Child-rearing is a shared responsibility. B) The Farrish family is comprised...

**edu**

I would go with B

**edu**

yes i read a little in the text

**edu**

A 1992 finding by researchers Dickinson et al. about the language prompts used by low-income caregivers revealed a need for training in: A. approaches for eliciting more referential language and labels. B. expanding question formats to obtain a child's elaborations and ...

**edu**

ok thank you for your help

**edu**

A parent from a non-mainstream culture complains to the program director that her son is being negatively singled out by his teacher. The director would do well, as a first step, to address the complaint by: a. backing the teacher's position and action b. setting a meeting...

**edu**

Which statements best express the strategy of semantic extension? a. The teacher uses redundancy to teach new vocabulary b. A mother says the same word twice in succession when speaking to her child c. Semantic extension involves the repetition of words & sentences, recasting ...

**edu**

7.Which one of the following conditions Fails to foster good communicative interaction in an early learning setting? a. The teacher repeats every thing a child says, but in the proper English form. b. At least during the time the child is in the early care environment, the ...

**edu..help ms sue**

yea

**edu..help ms sue**

i was saying the same thing. this question makes no sense

**edu..help ms sue**

A young Asian child would probably be less inclined to engage in backchanneling than a middle-class American child does because: a.he or she incorporates both verbal and nonverbal responses b.middle-class children are taught and expected not to engage in backchanneling c.non-...

**edu/diversity**

Or B. for the second question..I'd go with B.

**edu/diversity**

With growing concern and intake of information , a child may not be able to put new details into former mental bins and concept groups. When this occurs, a search for_____is stimulated a. coherence b. rules c. consonance d. definition Would A be appropriate Which one of the ...

**cultural diversity**

Child-rearing practices in which children are expected to sleep alone, toddlers are epected to self-feed, and preschoolers are encouraged to compete and/or do their best are likely to be contrary to beliefs and practices held by parents and guardians who belong to a/an: A. ...

**cultural diversity**

Linda Arriaga teaches at The Young Wonders Preschool. Which one of the following elements is likely to play the most prominent role in the school's child-centered philosophy and mission statement? A. Collaboration between teachers/staff and families B. Family participation...

**Math-Algebra**

10log(5x + 40) = 10

**Math-Algebra**

1) log(9 – x) – log(6 + x) = 1 2) e^2x + e^2x = 1 3) 2e^6x + e^6x = b

**college algebra**

please help me solve this equation x-1/3x-1/2x-5=0

**english**

Humpty Dumpty" tells the story about an egg that fell off a wall and broke. "Humpty Dumpty" is a __ poem. A.narrative B.free verse C.limerick D.nonsense Is it a narrative(a)

**edu**

Ms Sanchez is selecting a picture book to share with her two year olds. She will try to select a book with: a.few pictures so the story is lessened d. detail messages c.simple drawings d.fantasy type illustrations I think d not sure

**edu**

Which one of the following would NOT be a typical communication for a three year old ? a."Thats Scary b."I'm hungry c."Nobody likes carrots d.I wan cookies I think c not sure though

**edu**

Ms. Rook chose to develop her theme of life cycles around The Very Hungry Caterpillar by Eric Carle. She is using a.a thematic inquiry approach b.webbing c.a thematic/literature based approach d.a whole language learning Not sure between b and c i think c

**help please english**

what is a word that is in the ip family that means a baby bird. I have no clue need help

**Maths**

find range for g(X)= -cos4x

**math**

how much is 1/4 of 8 pies

**Physics**

The parachute on a race car of weight 8,810 N opens at the end of a quarter-mile run when the car is traveling at 34 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1,100 m?

**edu**

When a child is transitioning into your classroom, it is best for the child's first visit to take place: a.in the morning when the other children are arriving b.when other children in your class are on the playground c.during your circle time, so the child can meet all his...

**edu**

a teacher can be affectionate and still regard a child with objectivity,which is not possible for a parent. According to Katz this ____ is what distinguishes between mothering and teaching. a. scope of responsibility b. ambivalent attachment c. intensity of affect d. detached ...

**health**

the food group pyramid presents daily recommendations for: a.kind and amount of food to eat each day b.minimum amounts of nutrients needed c.amounts of each nutrient to consume daily d.maximum safe nutrient intakes Is it a? I am not sure

**HELPPPP**

business

**HELPPPP**

A______ is something a producer can do for a consumer I have no clue please help

**4th grade math**

Sam worked 36 hours in two weeks he worked twice as many hours in the second week as the first week how many did he work in the first week

**math**

Don't no

**Earlychilodhood education**

D is the best answer

**Basic Engineering2. Materials Science**

Oh never mind I figured it out.

**Basic Engineering2. Materials Science**

Boron is used to dope 1 kg of germanium (Ge). How much boron (B) is required to establish a charge carrier density of 3.091e7/cm^3. One mole of germanium has a volume of 13.57 cm^3 and weighs 72.61 gram. Give answer in grams of boron? I have no idea how to solve this problem. ...

**statistics**

Scores on an English test are Normally distributed with a mean of 78% and a standard deviation of 4.5%. Find the Value of the first quartile.

**Physics**

Thank you Elena!

**Physics**

The grams for Aluminum are 2.0e2 and the temperature for Aluminum is 2.2e2. The grams for water is 5.0e2.

**Physics**

I'm sorry for Aluminum its 0.215 and for Copper its 0.0922

**Physics**

And the answer that I have is wrong

**Physics**

A 1.0 102 g piece of copper at a temperature of 460 K and a 2.0 102 g piece of aluminum at a temperature of 2.2 102 K are dropped into an insulated bucket containing 5.0 102 g of water at 280 K. What is the equilibrium temperature of the mixture? (Use the specific heats found ...

**Calculus II**

Does the series ln/n^2 converge using the L'Hoptial's rule also. I know you can use the integral test but I have also seen others using the L'Hopital's rule on a very similar funciton ln/n^3 to see that it does converge.

**Physics**

Two people are talking at a distance of 3.4 m from where you are, and you measure the sound intensity as 1.0 10-7 W/m2. Another student is 4.2 m away from the talkers. What sound intensity does the other student measure?

**Physics**

A 5-m-long string, fixed at both ends, has a mass of 9 g. If you want to set up a standing wave in this string having a frequency of 298 Hz and three antinodes, what tension should you put the string under? I got 0.009kg(a984.68m/s)^2/5=7090 N it still says its the wrong answer

**Physics**

Your saying g=9.06

**Physics**

For some reason its still saying its the wrong answer

**Physics**

It still says its the wrong answer. Let me calculate it again

**Physics**

Imagine you are an astronaut who has landed on another planet and wants to determine the free-fall acceleration on that planet. In one of the experiments you decide to conduct, you use a pendulum 0.47 m long and find that the period of oscillation for this pendulum is 1.43 s...

**Physics**

Imagine you are an astronaut who has landed on another planet and wants to determine the free-fall acceleration on that planet. In one of the experiments you decide to conduct, you use a pendulum 0.47 m long and find that the period of oscillation for this pendulum is 1.43 s. ...

**Calculus**

F(x) = x^5 ln x A) Find the interval on which f is increasing Find the interval on which f is decreasing B) Find the local minimum value of f C) find the inflection point (x,y) Find the interval in which f is concave up Find the interval in which f is concave down

**Science- physics**

A 10 kg lawnmower is pushed along by a force applied at a 20* angle to the horizontal. If the mower accelerates at 3.4 m/s what is this force?

**Statistics**

Suppose there are two defective items in a pool of five items. You want to test one item at a time until you identify the second defective item. Find following probabilities a. You need four tests. (i.e. The second defective item will be found at the fourth test.) b. You need ...

**physics**

all the following are true about water except that it: a has a very high specific heat capacity compared to ther substances. b. takes a long time to heat up. c. takes a short time to cool off. d. makes the earths climates milder.

**Math**

Each equal side of an isosceles triangle is 3 1/2 inches longer than the base. The perimeter of the triangle is 2 feet. Find the length of its base.

**PHYSICS!!**

A plane drops a hamper of medical supplies from a height of 4190 m during a practice run over the ocean. The plane’s horizontal veloc- ity was 111 m/s at the instant the hamper was dropped. What is the magnitude of the overall ve- locity of the hamper at the instant it ...

**Physics**

Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on the gas if it is com- ...

**Physics**

Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on the gas if it is com- ...

**Physics**

Suppose you throw a 0.058-kg ball with a speed of 11.0 m/s and at an angle of 31.5° above the horizontal from a building 12.3 m high. (a) What will be its kinetic energy when it hits the ground? (b) What will be its speed when it hits the ground?

**Physics**

A) Gravity pulls an area of wet soil and rock downward in a landslide B) An ... Many people know that the weight of an object varies on different planets, but did ... If the Earth's gravitational force causes a falling 74 kg student to accelerate .... the acceleration of ...

**physics**

A fire hose ejects a stream of water at an angle of 31.5 ° above the horizontal. The water leaves the nozzle with a speed of 24.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the highest possible fire?

**spelling**

Foist

**math**

a recipe that will make 3 pie call for 7 cups of flour. write a proportion and solve it to find how many pies can be made with 28 cups of flour

**physics**

A hot-air balloon is rising upward with a constant speed of 3.06 m/s. When the balloon is 9.31 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

**Ethis**

What is the historical and current impact of the biomedical issue in abortion?

**computer**

If int main() { int a=1; int *p; how do the following statements differ 1) p=&a; 2) *p=&a; 3) p=a; 4) printf("%d",p); 5) printf("%d",*p); and what does int **a mean

**physics**

The box decelerates at a rate of 3m/s and skids 24 meters becoming to a stop.How fast were you traveling when the box fell out.

**Chemistry**

The molar mass of Cl is 35.45 g/mol. What is the mass of the chloride atom in grams.?

**Physics - Center of Mass**

A baseball player uses a bat with mass mbat to hit a ball with mass mball. Right before he hits the ball, the bat's initial velocity is 36 m/s, and the ball's initial velocity is -20 m/s (the positive direction is along the positive x-axis). The bat and ball undergo a ...

**math**

Describe how you can use a number line to order the fractions 3/7, 5/7 and 1/7 from least to greatest.

**MATH**

You have 43 marbles. You divide them equally among some sacks. How many sacks must you use to get fewer than 8 marbles in each sack?

**physics**

what is the mass of a playset that is moved with 580n of force for 11 seconds at 1.5 m/s?

**math**

There are 25 books in a bookcase. The books in the bookcase are all math, science, and history books. Seven of the books are math books. There are 4 fewer science books than history books. How many science books are in the bookcase?

**english**

Good job!

**physics**

NEW ZEALAND

**MATH**

THANK YOU I HAD A HARD TIME UNDERSTANDING

**MATH**

NUMERICAL EXPRESSION- 12 TIMES AS LONG AS 2 IN.

**math**

Adrian said that any 2 digit number with 2 identical,digits is divisible by 11. Do you agree? Explain.

**business**

Is anyone currently in intro to bus. need a study partner?

**physics**

regards bungee jumping How accurately must the weight of the jumper be known?

**Physics**

A pole-vaulter of mass 60.2 kg vaults to a height of 6.1 m before dropping to thick padding placed below to cushion her fall. (a) Find the speed with which she lands. (b) If the padding brings her to a stop in a time of 0.52 s, what is the average force on her body due to the ...

**Physics**

A man with a mass of 60 kg skis down a frictionless hill that is h = 2.2 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...

**math**

Explain another way to help you find the product of 8x6 without repeated addition.

**english**

Select the sentence that is punctuated correctly. The neighbors’ new dog is small, quiet, and shy. The neighbors’ new dog is small quiet and shy. The neighbors’ new dog is, small, quiet and shy.

**Math**

On tuesday you all took the science and then your social studies final exams. What is the probability of you passing your social studies final exam given that you know that you passed your science final exam first ? The probability of you passing both is 50% and the ...

**Math**

thanks

**Math**

thats a negative 43.4% WHY?

**Math**

THe population of Anytown in 1960 was 1,576,230. In 1990 the population was 892,560. Find the percent change. AM REALLY CONFUSED PLEASE HElp

**MAth**

yea you had to round

**MAth**

so the first number would be 25.50 then 2nd would be 27.50

**chemistry**

Isotopes (select one or more): are chemicals that react only with protons. for an element have the same chemical properties. are atoms of an element that differ in the number of protons. are atoms of an element that differ in the number of neutrons. for an element are equal in...

**Question**

The scores on a test are normally distributed with a mean of 140 and a standard deviation of 28, what is the score that is one standard deviation above the mean?

**Physics**

Force of gravity=(Gm1m2)/(r squared) m1g=(Gm1m2)/(r squared) g=(Gm2)/(r squared) m2=Krypton's mass=7.1x10^23 kg r= Krypton's radius=3.3x10^6m G=6.6726x10^-11 (N x m^2)/kg^2 Plug in the numbers. You should get 28.265875m/s^2

**english**

A.

**basic english**

B. is Correct

**physic**

Average Speed 1. In the 2008 Summer Olympics, Usain Bolt won the 100-m race in 9.69 s. What was his average speed? 2. Light from the sun reaches Earth in 8.3 min. The speed of light is 3.0108 m/s. How far is Earth from the sun? 3. In Major League Baseball, the distance between...