# Posts by anna

Total # Posts: 2,755

Science
idk

science
A wolf us chasing a rabbit.Graph the wolf's motion using the following data: 15 m\s at 0 s,10 m\s at 3 s,1 m\s at 4 s,and 0 m\s at 5 s.What does the graph tell you???

Math
Could someone explain how to graph the following problem? I don't quite understand what "Graph H for 0 ≤ t ≤ 3 and 300 ≤ H ≤ 340" is asking me to do... The National Oceanic and Atmospheric Administration (NOAA) has been measuring ...

American History
true or false The Great Migration was a large-scale movement of hundreds of thousands of southern African Americans to Weswtern farms.

physics
exactly. This is all I was given. Possibly SumOf t = T(exp)*length* sin(theta) - W(hang) * length * sin(phi) - W(boom) * L(exp) * sin(phi) = 0 but im not sure.

physics
The torques acting on the crane boom can be computed about anaxis passing through the top of the boom. (this is the place wherethe spring scale and mass hanger connect to the boom) apply thesecond condition for equilibrium to the crane boom and derivethe resulting equation for...

physics
a clothes washer starts from rest and spins up with an angular accceleration of 10/rad/s^2. Determine the angle through which the washer has moved afer 6 seconds.

Math
this problem is modelling daylight hours using the form y = d+a sin[b(t-c)], btw

Math
How would I solve for t if y equals 720 minutes of daylight and t=the number of days in 2012 720 = 713.7+152.7 sin [(2pi/366)(t-80.75)]

trig
i think i figured out my mistake. it should be 720 = 713.7+152.7 sin [(2pi/366)(t-80.75)] this problem is modelling minutes of daylight in a town using the form y = d+a sin[b(t-c)]. let y equal 720 minutes of daylight and let t=the number of days in 2012

trig
How would I solve this problem for t? 720 = 11.895+2.545sin [2pi/366(t-80.5)]

spanish literature
Osvaldo Dragun in his story Historia del hombre que se convirtio un perro: what is the conflict that the protagonist feels strongly about?

stat and research
3. A researcher is interested in whether listening to music helps or hinders test-performance. To control for differences in cognitive level, this researcher decides to use a within-participants design. He selects a random sample of participants and has them study different ...

math
use any method to estimate 667-651

Physics
A plane is capable of flying 200 km/h. There is a wind of 90 km/h from the east. The pilot flies in a northwest direction relative to the ground for three hours from city A to city B. Find the speed of the plane relative to the ground, the heading of the plane, and the ...

Physics
A plane is capable of flying 200 km/h. There is a wind of 90 km/h from the east. The pilot flies in a northwest direction relative to the ground for three hours from city A to city B. Find the speed of the plane relative to the ground, the heading of the plane, and the ...

3rd math
Tessie multiplied 3x4, and then doubled it to find 6x8 .did she get the correct answer ? Explained

Fractions
thank you

Fractions
A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of ...

Math
Thank you

Math
I have the fraction 1/6. I need to express it as a decimal, fraction expressed with denominator 100 and percentage. Is it correct to have 0.16666; 16.66/100 and 16.66%?

Math - urgent
thank you

Math - urgent
2. A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of...

Cultral Diversity
1.Reserch about the impact of cultral valueson peer social interaction in an early education classroom may lead one to conclude that this enviroment may create biases if the primary social orientation favors:a teacher centered learning b.individual activities c.non- maintream ...

Cultual Diversity
1.A mother's eventual submission to her young child's repquests for the toy matchbox car in the hobby shop is representative of the ______ parenting style. a. laissez faire b.authoritarian c.Victorian d. democratic 2.A Native American child spent 30 minutes watching, ...

Math
That's not even one of the choices... I have the same problem. I don't understand this at all. I'm on a test, and I cant find the answer to this question. Going to online school sure has a down side.

Math for Steve or someone good at math
The answer to number one is D everyone keeps saying B

chem 11
a gas has an empirical formula C6H7O5. When put in a 50mL bulb at 120 degrees celcius and 120kPa (pressure) it's mass is determined: the mass is 10.37 times as much as C6H6O. What is the molecular formula of the gas (C6H7O5)?

Chemistry 11
a gas has an empirical formula C6H7O5. When put in a 50mL bulb at 120 degrees celcius and 120kPa (pressure) it's mass is determined: the mass is 10.37 times as much as C6H6O. What is the molecular formula of the gas (C6H7O5)?

Calculus
At a given moment, a plane passes directly above a radar station at an altitude of 7 miles. (a) If the plane's speed is 400 mph, how fast is the distance between the plane and the station changing half an hour later? (b) How fast is the distance between the plane and the ...

chemistry 11
if I was asked to set up a procedure that will allow me to check the concentration of aqueous Co2+ ions in a reaction vessel every 15 mintues, what could I do to quickly and accurately determine the concentration of colbalt ions in the solution?

Culturally Diverse Background
Will someone check my answers. 1.During a class fingerpainting activity,Doresha appeared perplexed by the teacher's question, What are you doing, Doresha did not respond quickly or with ease. Why did Doresha respond to this eventcast the way she did? a. Doresha is from a ...

chemistry 11
if a solution is contanimated with a chemical that causes a larger amount of solid, opaque particles floating in the solution, would the absorbance read too high or too low, and why?

Physics
Traveling at a speed of 15.9 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.700. What is the speed of the automobile after 2.00 s have elapsed? Ignore the effects of ...

CHEMISTRY! NEED HELP FAST!
i can't find the answer can u show me how to do the work step by step and tell me the answer my homework is due tomorrow

English
Contain some national and international news , but focus on news relating to specific area of the country. hhat type of newspaper is this ?

Physics HELP!
An airplane flies due north at 240 km/h with respect to the air. There is a wind blowing at 75 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground? __?__km/h __?__° east of north

Physics!!! HELP
An object in equilibrium has three forces exerted on it. A 36 N force acts at 90° from the x axis and a 42 N force acts at 60°. What are the magnitude and direction of the third force? __?__N __?__° (counterclockwise from the +x direction)

Physics!
Two ropes pull on a ring. One exerts a 57 N force at 30.0°, the other a 57 N force at 60.0° (a) What is the net force on the ring? Magnitude __?__N Direction __?__° (b) What are the magnitude and direction of the force that would cause the ring to be in equilibrium...

An object in equilibrium has three forces exerted on it. A 36 N force acts at 90° from the x axis and a 42 N force acts at 60°. What are the magnitude and direction of the third force?

Thanks for the answer, I was totally confused.

Science
This helped me a lot. Thank you.

AP Physics
A 45 kg gymnast steps off a platform located 1.3 m above a spring board. The spring board compresses 25 cm. a)What is the spring constant of the spring board? b) If energy is in fact conserved in this problem, explain how high the gymnast will spring upward. Assume the gymnast...

English
Thank you, that helped a lot!

English
In "The people could fly" what opposing forces struggle against eachother. And what is the main conflict in the story?

Science
You know that a gas in a sealed container has a pressure of 111kPa at 23 Celsius. What will the pressure be if the temperature rises to 475 Celsius?

Physics
Number 2 was incorrect.

Early Child Care
All of the following statements about the brain are correct EXCEPT: A) the brain is strongly run by patterns rather than facts. B) the brain runs better when food intake is irregular. C) stress and threat effect the brain in many ways. D) all learning is mind-body.

Early Child Care
the ability to put an object or group of objects in a logical series based on a property of those objects is: A) seriation B) phonemic awareness C) classification D) attribution

math
when enlargeing sn object, why does the area increase diffrently than the preminter?

Figure the resultant velocity of a plane that is traveling at 300 km/hr @ 190 degrees when he encounters the wind below a) 30 km/hr tailwind b) 40 km/hr headwind c) 50 km/hr wind blowing south

Physics
A motor boat heads west across a river as a current of 12 km/hr. The speedometer reads a constant of 26 km/hr. What is the resultant velocity of the boat as compared to its original path? And what is the degree?

Calculus
f (0)=sinø + cos ø of(0)=3 f'(0)=4

Physical Science
A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of the metal.

algebra 2
Solve for x: x=4+x divided by y-3

Was that fine

2. In a way that you didn't mean, people can interpret things

Changing sentences to COMPLEXS sentences. 1. The drought caused deprivation of food and clean water in the town 2. Many people can interpret things in a way that you didn't mean 3. The book on Ancient Greece gave me some insight as to what their life was like. 4. The part ...

You have to change the complete sentences to complex sentences

Changing sentences for complex sentences 1.The stray cat took refuge in an old cardboard box to keep warm. 2. Some students find it difficult to make the transition to a new school 3. Jesus suffered from persecution due to his religious beliefs.

math help
Nona, I go to connections academy. Lol

math
JT I go to connections academy. Is that where you go?

Chemistry
What will be the volume of the gas if it is heated at constant pressure to 50 degrees Celsius? First, convert mL to L and Celsius to Kelvin: 372 mL = .372 L 25 degrees C = 298 degrees K 50 degrees C = 323 degrees K -272 degrees C = 1 degree K Then, set up your equation: .372L/...

history
how important were federal policies for the expansion of the industrial economy between 1865 and 1900

Where do I put the thingy in above of which words

Underline each variable IV ABOVE THE INDEPENDENT VARIABLE DV ABOVE THE DEPENDANT VARIABLE 1.How will Product x affect the life if cut flowers. 2.What is the effect of different amounts of oxygen on the rate of yeast growth. 3.Does the number of bees affect the amount of honey ...

Chemistry
Zinc reacts with hydrochloric acid according to the reaction equation: Zn(s)+2HCl(aq)->ZnCl2(aq)+H2(g) How many milliliters of 4.50M HCl1(aq) are required to react with 8.25g of an ore containing 30.0% Zn(s) by mass?

37.5 minutes

7th grade Math quick help Ms. Sue
This is the math unit test at connections academy. you should be ashamed.

Math
The answer to 7 plus 4(8 minus 2)

physics
Two beetles run across flat sand, starting at the same point. Beetle 1 runs 0.42 m due east, then 0.72 m at 32o north of due east. Beetle 2 also makes two runs; the first is 1.48 m at 47o east of due north. What must be the magnitude of its second run if it is to end up at the...

Physics
At what distance from the earth's surface with a mass of 5.0kg be just 45.0N in weight. HELP

Math
the height of a rocket with an upward speed of 1000m/s is expressed as h=1000t-4.9t^2. what is the hight of the rocket after 8 seconds?

arrays
FUGE THIS

history
i believe its B is it correct

history
The statement below represents which genre from the early American and Colonial period? I want to explain origins of the natural world and its processes. (1 point) the poetry of Anne Bradstreet the oral tradition of Native Americans the journals of William Bradford the essays ...

history
Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (1 point) to express and reflect to persuade to inform to invite

Chemistry
The bromine content of the ocean is about 65 grams of bromine per million grams of sea water. How many cubic meters of ocean must be processed to recover 1.0 pounds of bromine if the density of sea water is 1.0 x 103 kg/m3?

history
i believe its anne bradstreet and william bradford is it correct

history
Which of the following authors wrote in the same genre? Anne Bradstreet William Bradford Olaudah Equiano Thomas Jefferson

HISTORY
William Bradford wrote Of Plymouth Plantation and A "To My Dear and Loving Wife." B The Day of Doom. C The Voyage of the Mayflower. D The Mayflower Compact. I THINK ITS C OR D BUT IM PRETTY CONFUSED. PLEASE HELP , IF I WERE TO PICK ID PICK C

SUBJECT
Which of the following statements about literary movements is NOT true? A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary movements. C Literary movements may ...

HISTORY
IS IT d?

HISTORY
IM SORRRY B-all men are created equal C - these Colonies are, and of right ought to be, free and independent states D-we the people of the United States

HISTORY
Which of the following phrases does NOT appear in the Declaration of Independence? ( A life, liberty, and the pursuit of happiness B all men are created equal C these Colonies are, and of right ought D to be, free and independent states we the people of the United States I ...

history
ARE THOSE CORRECT PLEASE CHECK

history

history
1-Which of the following statements about literary movements is NOT true? (1 point) A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary movements. C Literary ...

Physics AP
A ball is thrown straight upward with a speed of +12 m/s. A) what's the ball's acceleration just after it is thrown? B) how much time does it take for the ball to rise to its maximum height? C) what's the approximate maximum height the ball reaches?

physics
What is the magnitude of the electrostatic force that the two protons inside the nucleus of a helium atom exert on each other? Why do atomic nuclei not simply explode?

physics
If we wanted a block of iron of mass 3.25 kg to acquire a positive charge of 0.100 C, what fraction of the electrons would we have to remove?

physics
Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a 10.0- resistor is connected with the battery, the potential difference across the battery’s terminals drops to 10.9 V. What is the internal resistance of the battery?

Science
i dunno....

chemistry
the silver will heat up almost twice as fast.

math
the second largest six-digit number in which no digit appears more than three times

science
Lithium fluoride has a Ksp of 1.84 x 10-3. If 1.5 g are dissolved, what will be the percent ionization?

chemistry
if 14.7g of na reacts with 7.9g og br how many grams of nabr are found

Physics
An object is thrown upwards at an initial speed of 19.6 m/s from a height of 65m. Determine how long will take for the object to reach the ground (time of flight). what formula should i use?

Math
When dealing with linear equations, what does consistent, inconsistent, dependent, and independent mean? I'm so confused!