Monday
July 6, 2015

Posts by Sasha


Total # Posts: 370

English/Grammer
I am sorry, PN not IN
November 2, 2010

English/Grammer
how about these? 7. PV = is, PN = Mounties 9. pv = are, pn = uniforms 10. The police force became important in the 1800's. (LV=became PN=police) 11. The officers are government officials. (LV= are, Ln=officers) 12. Their presence was necessary in the far north county in ...
November 2, 2010

English/Grammer
7. LV = is, PN= police? 9. LV=are, PN=uniforms? how about these? 10. The police force became important in the 1800's. (LV=became PA=important) 11. The officers are government officials. (LV= are, PN = government) 12. Their presence was necessary in the far north county in ...
November 2, 2010

English/Grammer
#6 LV = are, PA= common #7 LV = is, PA = nickname #9 LV = are, PA = symbol
November 2, 2010

English/Grammer
Hello - I am having trouble with verbs and linking verbs...can you tell me if these are correct? I also have to pick out the predicate noun/adjective. 1. In northern Canada, the countryside seems peaceful. (LV= seems, PA = peaceful) 2. The mountain air smells fresh. (LV= ...
November 2, 2010

college
How fast (in rpm) must a centrifuge rotate if a particle 8.2 cm from the axis of rotation is to experience an acceleration of 200000 g 's?
October 29, 2010

calculus
prove that the function f(x) = (x^101)+(x^51)+x+1 has neither a local maximum nor a local minimum
October 28, 2010

Mathematics for Liberal Arts
is this 4 cards of everything?
October 24, 2010

Mathematics for Liberal Arts
Using a standar deck of 52 cards, what is the probability of drawing four cards of the same number(eg.four aces, 4 kings, four 2s, four 3s,etc)?
October 24, 2010

Mathematics for Liberal Arts
Using a standar deck of 52 cards, what is the probability of drawing four cards of the same number(eg.four aces, 4 kings, four 2s, four 3s,etc?
October 24, 2010

Mathematics for Liberal Arts
Using a standar deck of 52 cards, what is the probability of drawing four cards of the same number(eg.four aces, 4 kings, fiyr 2s, four 3s,etc?
October 24, 2010

Mathematics for Liberal Arts
Each round of the game costs $1 to play. A round consists of you choosing a number from 1 to 10 and then picking a card at random from a standard deck of cards. I fyou pick a card with the number you chose, you win $5. If you don't, you lose your dollar. a) What is the ...
October 24, 2010

Physics
A stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 4.5 s later.
October 23, 2010

Mathematics for Liberal Arts
Using a Standard deck of 52 cards, what is the probability of drawing four aces in a 5-card hand?
October 23, 2010

calculus
find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.
October 19, 2010

calculus
find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.
October 19, 2010

Math
So 18/25b divided by 2/1, when your dividing you flip the second fraction over.After that you use 18/25 and divid it to 1/2.Then you cross out the 18 and the 2 and make the 18 into a 9 and the 2 into a 1.Finally you divid it and get your answer.
October 18, 2010

calculus
a spotlight on the ground shines on a wall 12 m away. if a man 2m tall walks from the spotlight toward the building at a speed of 1.6m/s, how fast is the length of his shadow on the building decreasing when he is 4m from the building?
October 14, 2010

calculus
A. find y' by implicit differentiation. B. solve th equation explicitly for y and differentiate to get y' in terms of x. cos (x) + √y = 5
October 14, 2010

calculus
finf y'' by implict differentiation √x + √y = 1
October 14, 2010

US history
why is it 1?
October 12, 2010

math
A ladder 10 ft long rests against a vertical wall. let θ be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
October 7, 2010

calculus
A ladder 10 ft long rests against a vertical wall. let θ be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
October 7, 2010

calculus
find an equation of the tangent line to the curve y = x √x that is parallel to the line y = 1 + 3x.
October 7, 2010

calculus
If f(x) = sec x, find f''(π/4).
October 6, 2010

calculus
find an equation of the tangent line to the curve y = x √x that is parallel to the line y = 1 + 3x.
October 6, 2010

calculus
find h'(2) given that f(2) = -3, g(2) = 4, f'(2)= -2 and g'(2)= 7. A. h(x) = 5f(x) - 4g(x) B. h(x) = f(x)g(x) C. h(x) = f(x)/g(x) D. h(x) = g(x)/ 1+ f(x)
October 6, 2010

college
After you work out at the gym on a stationary bike for 43.0 minutes, the distance guage indicated that you have traveled 14.8 miles. What was your rate in km/hr?
September 20, 2010

English
In my class we were reading a short story call The Pedestrian by ray bradbury and my teacher ask me a bunch of questions like for example What is the theme of the story but i dont get the question ? i didnt understand the story neither
September 15, 2010

math
a spherical balloon with radius r inches has volume V9r) =(4/3)πr^3. Find a function that represents the amount of air required to inflate the balloon from a radius of r inches to a radius of r+1 inches
September 12, 2010

algebra 1
15.6+x for x= -17.9
September 12, 2010

algebra 1
3-( -6 1/4 )
September 12, 2010

algebra
order the following numbers from greatest to least : 3.8 , -4.3 , -4.1 . express the answers by usinq < , <_ ,> , _>
September 5, 2010

algebra
use the integer to represent a withdrawal of $125 from a bank account. ( i need help )
September 5, 2010

capt math
to convert from ounces to pounds, you can multiply the nymber of ounces by 0.0625. express 0.0625 in scientific notation. : can you please help me express it. thanks
September 5, 2010

10th grade
thanks i qot n= 12
September 5, 2010

10th grade
am i suppose too divided 9 when i multiply 27 with 4 ?
September 5, 2010

10th grade
for which value of n will the function 4/9 and n/27 be equivalent?
September 5, 2010

Physics
You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball’s speed just at it leaves the ground after the bounce?
August 15, 2010

psychology
what are the main difference of traits and psychodynamic theory?
July 12, 2010

social studies
A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when
June 20, 2010

Trig
Find three additional polar representation of the point (-3, pie over 6) given in polar coordinates,using -2 pie <0 <2pie.
May 20, 2010

Statistics
Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. If you have a body temperature of 99.00 °F, what is your percentile ...
April 19, 2010

CJS 240
what are any program-federal, state, or local that emplifies the concept of social structure, social process or social conflict theories? Or any references would be even better.
April 17, 2010

cjs 250
any references to the topic: can any target environment be perfectly stably or predictable?
April 11, 2010

CJS 250
can any target environment ever be perfectly stable or predictable? why or why not?
April 11, 2010

Math 132
It should be 5 over 6. Which equal to 1 over 2. Hope it help.
April 5, 2010

Physics
Two charged bodies exert a force of 0.415 N on each other. If they are moved so that they are one-third as far apart, what force is exerted?
March 29, 2010

Physics
Coulomb measured the deflection of sphere A when spheres A and B had equal charges and were a distance d apart. He then made the charge on B one-third the charge on A. How far apart would the two spheres then have had to be for A to have had the same deflection that it had ...
March 29, 2010

physics
If the average household uses electrical energy daily at the rate of 500. W, how much U-235 must undergo fission to supply this need for a year? (assume 200. MeV of energy are generated per fission and that the power plant is 46% efficient). 1. Energy used in Joules per year? ...
March 16, 2010

physics
Determine how much water would be present in a 10 tonne sample of lignite, has a moisture content of 65%, before crushing and drying. 10 tonnes is 10,000 kg.
March 10, 2010

physics
Wouldn't you take tan-1 of Y/X Y= 80 because you're heading north on a y-axis then 45 m would be your x-axis so tan-1 (80/45)??
March 7, 2010

physics
You walk 80 m to the north, then turn 60 degrees to your right and walk another 45 m. Determine the direction of your displacement vector. Express answer relative to east :)
March 7, 2010

physics
A boy throws a rock with an initial velocity of 2.47 m/s at 30.0 degrees above the horizontal. How long does it take for the rock to reach the maximum height of its trajectory?
March 7, 2010

physics
A plane flies directly from city A to B, which are separated by 2300mi. From A to B, the place flies into a 65mi/hr headwind. ON the return trip from A to B, the wind velocity is unchanged. The trip from B to A takes 44 min less than the trip from A to B. What is the airspeed...
March 7, 2010

Calculus
i got 7.7 for width and 9.5 for length? does this sound right
March 1, 2010

Calculus
A poster is to have an area of 170 in2 with 2 inch margins at the bottom and sides and a 3 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)
March 1, 2010

physics
the first excited state of the nucleus of uranium-235 is 0.051 MeV above the ground state. what is the wavelength of the photon emitted when the nucleus makes a transition to the ground state? (in meters)
February 27, 2010

music
c. Dissonance Many pieces today are very dissonant. In the olden days, composers were pressured to create music that was pleasing to the ear, so in the past, music was more melodious.
February 12, 2010

health administration
What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.
February 11, 2010

criminal justice
1.Which option (front-end solutions, double bunking, or back-end solutions) do you feel is the most effective in our correctional system?
February 11, 2010

Calculus
Find the points of inflection of the curve below. Round the answers to three decimal places. (Hint: All three are in a straight line.) y= (1+x)/(1+x^2)
February 8, 2010

Intermediate Accounting
$85,313
February 5, 2010

Physics
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a car can safely travel if the radius of the track is 77.0 m and the coefficient of friction is 0.36?
February 2, 2010

Math
How many ways can 3 students be arranged in three chairs? I'm not really sure but I think that the answer will be 9 (nine), is that correct..?
January 15, 2010

chemistry
ANSWER is nf=3. i tried it
January 15, 2010

Physics
I just need help with part c. I know stopping takes longer but we have to explain why. A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 849 N. (a) As the elevator moves up, the scale reading increases to 912 N. Find ...
January 5, 2010

Physics
You are driving a 2590.0 kg car at a constant speed of 14.0 m/s along an icy, but straight, level road. As you approach an intersection, the traffic light turns red. You slam on the brakes. Your wheels lock, the tires begin skidding, and the car slides to a halt in a distance ...
January 5, 2010

Physics
If you use a horizontal force of 31.0 N to slide a 10.5 kg wooden crate across a floor at a constant velocity, what is the coefficient of kinetic friction between the crate and the floor? I tried 3.32 but it said that was wrong ?
January 5, 2010

Physics
if arnold strongman and suzie small each pull very hard on opposite ends of a massless rope in a tug-of-war the greater force on the rope is exerted by ? i think both the same
January 5, 2010

Physics
okay i changed it they didnt want a negative sign for some reason
January 5, 2010

Physics
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
January 5, 2010

Physics
Okay the answer I am getting for this is 36666.67 but it said this was wrong? Maybe I am doing it wrong though I did 5500/.150 and it did say that the acceleration was right as a positive number
January 5, 2010

Physics
As a baseball is being caught, its speed goes from 27.5 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.150 kg. (a) What is the baseball's acceleration? 5500 m/s^2 (b) What are the magnitude and direction of the force acting on it? and is it in opposite in ...
January 5, 2010

physics
1. Three particles with charges of +11 mC each are placed at the vertices of an equilateral triangle with sides of 15.0 cm. What is the magnitude and direction of the net force on each particle? 2. A proton is released in an uniform electric field and it experiences a force of...
January 4, 2010

Physics
these are the two answers I got... 10 or 10.22
January 3, 2010

Physics
I don't understand this formula?
January 3, 2010

Physics
I found the first three parts of the question but I can't figure out part d. The instruments attached to a weather balloon in the figure below have a mass(m) of 5.5 kg. The balloon is released and exerts an upward force(F) of 109 N on the instruments. (a) What is the ...
January 3, 2010

Physics
its a web assign and i typed that answer in but it said it was wrong
January 3, 2010

Physics
so it should be -1.76 m/s^2
January 3, 2010

Physics
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s^2, find the magnitude of the acceleration of the boy toward the girl.
January 3, 2010

physics
why should spare petrol for cars be carried in a metal rather than plastic container? Explain why the inside of the car is a safe place during a thunderstorm. calculate the charge on 4.0 * 10^20 protons.
December 16, 2009

12th grade Physics
charges of +1.000 C are located at the corners of a 45-45- right triangle which has a hypotenuse that is 1.414 m long. Determine the resultant force on the charge located at the vertex of the right angle.
December 15, 2009

12th grade Physics
the force between two charges is 20.0 N. if one charge is doubled, the other is tripled, and the distance between them is halved, calculate the resultant force between them.
December 15, 2009

Physics
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 800 N and the angle between the two ropes is 20°. How hard must each player pull to drag the coach at a steady ...
November 20, 2009

Physics
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical string. (a) What is the magnitude of the force of the block on the horizontal surface?
November 20, 2009

Physics
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 800 N and the angle between the two ropes is 20°. How hard must each player pull to drag the coach at a steady ...
November 20, 2009

Physics
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 800 N and the angle between the two ropes is 20°. How hard must each player pull to drag the coach at a steady ...
November 19, 2009

Physics
(a) Suppose you throw a football. At some instant, when the ball is in contact with your hand, your hand exerts a force of 100 N on the ball in the +x direction. What is the force of the ball on your hand?
November 19, 2009

Physics
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical string. (a) What is the magnitude of the force of the block on the horizontal surface?
November 19, 2009

spanish
después de eso iré al término de autobuses y siguiente comeré una torta
November 19, 2009

History
to what extent was Hitler's rise to power due to personal appeal and ability?
November 19, 2009

physics
a 145g baseball is dropped from a tree 13.0m above the ground. with what is the velocity of the baseball at the ground after it falls 13.0m? B. If it actually hits the ground with a speed of 8.0o m/s, what is the average force of air resistance exerted on it?
November 12, 2009

physics
21.7 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 2.2 m/s How many joules of thermal energy are created due to friction as a kid slides down a slide?
November 12, 2009

history
What would be a good thesis statement for my intro paragraph? Effect and Evolution of African Americans in Minnesota Intro The first Great Migration occurred after the Civil War and after the 13th amendment was passed. With the passing of the 13th amendment, many African ...
November 11, 2009

Physics
A 3800 kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.50 kg/min. ignoring friction with the tracks what is the speed of the car after 90.0 minutes?
November 11, 2009

physics
A sports car of mass 950kg (including the driver) crosses the rounded top of a hill (radius = 95m) at 22m/s. Determine a) the normal force exerted by the road on the car, b) the normal force exerted by the car on the 72kg driver, and c) the car speed at which the normal force ...
November 3, 2009

physics
a .45kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3m on a frictionless horizontal surface. if the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have?
November 3, 2009

PHYSICS
so i did a = 1.25^/1.1 = 1.42 m/s^2 then F =ma = 25(1.42) = 35.5N is that right?
November 3, 2009

PHYSICS
a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal acceleration of the child and the net horizontal force exerted on the child (mass = 25 kg).
November 3, 2009

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