Questions Asked on
November 7, 2010

Chem
Plese tell me if these are right. A 15.0mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to dryness, the dry salt residue has a mass of 3.26g. Calculate the following concentrations for the NaCl solution. a. %(m/m)= 3.26 x 100
asked by Jason 
chemistry
If you add 5.0 mL of 0.50 M NaOH solution to 20.0 mL to Buffer C, what is the change in pH of the buffer? (where buffer C is 8.203 g sodium acetate with 100.0 mL of 1.0 M acetic acid) I have calculated the pH of buffer C to be 4.74. Now what? =\
asked by Chelsea 
physics
I calculated parts a, b, c, but cannot figure out d. I tried combining all the forces and adding them but I am missing something? There is an 18 kg box on a 32degree incline. a HORIZONTAL force of 150 N is given to the box a) How much work is done by the
asked by Aileen 
physics
Two point masses are located a distance, D, apart. The gravitational force of attraction between them can be quadrupled by changing the distance to
asked by unknown 
Physics
A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest. The cue ball is deflected so that it makes an angle of 30° with its original direction of travel. (a) Find the angle between
asked by Amy 
Chemistry
three different liquids are used in a manometer. (a) derive an expression for P1P2 in terms of ro(a), ro(b), ro(c), h1, and h2 (b) suppose fluid A is methanol, B is water, and C is a manometer fluid with a specific gravity of 1.37; pressure P2=121.0 kPa;
asked by Marissa 
math
Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric. Define the variable write the equation solve and label.
asked by obama 
english
what are some poetic devices used in the following poem? "Mending Wall" by Robert Frost Something there is that doesn’t love a wall, That sends the frozengroundswell under it And spills the upper boulders in the sun, And makes gaps even two can pass
asked by Rebecca 
math
A bag contains 3 red marbles, 2 green ones, 1 lavender one, 2 yellows, and 4 orange marbles. How many sets of four marbles include all the red ones? 1Your answer is incorrect.
asked by liz 
chemistry
If 2.1 moles of CaCl2 are dissolved in enough water to make a 0.92liter solution, what is the resulting molarity? 0.44 M CaCl2 0.70 M CaCl2 2.3 M CaCl2 3.0 M CaCl2
asked by smith 
AP Chem
The energy change H associated with the reaction NBr3(g) + 3H2O(g) > 3HOBr(g) + NH3(g) is +81 kJ/mol rxn. These bond energy values might be useful: OH 459 kJ/mol; NH 386 kJ/mol; OBr 201 kJ/mol. The strength of the N Br bond is 1. 4 kJ/mol 2. 465
asked by Beth 
physics
You push a 2.0 kg block against a horizontal spring, compressing the spring by 15 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 75 cm from where you released it. The spring constant is 200 N/m. What is the
asked by Meghan 
science
A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest. The cue ball is deflected so that it makes an angle of 30° with its original direction of travel. (a) Find the angle between
asked by Amy 
calculus
Time (months) 0 1 2 3 4 5 Rate pollutants are escaping 2 5 7 16 24 34 Use this data to sketch a graph Draw rectangles on this graph (as in Figure 5.2) to help you underestimate the total pollutants that escaped during the first month. What underestimate
asked by Erika 
Physics
A man doing pushups pauses in the position shown in the figure . His mass = 68 kg. Determine the normal force exerted by the floor on each hand. Determine the normal force exerted by the floor on each foot.
asked by Nicole 
math
Volunteers who had developed a cold within the previous 24 hours were randomized to take either zinc or placebo lozenges every 2 to 3 hours until their cold symptoms were gone. Twentyfive participants took zinc lozenges, and 23 participants took placebo
asked by Anonymous 
Calculus
A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the semicircle. What are the dimensions of the rectangle with maximum area?
asked by Tiff 
physics
The two forces F1 and F2 act on a 27kg object on a frictionless tabletop. If F1 = 7.1 N and F2 = 33 N, find the net force on the object and its acceleration. WHAT IN the world...how do i figure this out!
asked by aNGEl 
AP Chem
Consider the reaction 2 Al2O3(s) > 4 Al(s) + 3 O2(g) . H = +3339.6 kJ/mol What is the change in heat when 0.455 L of a 3.60 M Al solution reacts with excess O2 ? 1. 685 kJ 2. 21,962 kJ 3. 1368 kJ 4. 2738 kJ 5. 5477 kJ 6. 26,521 kJ 7. 424 kJ 8.
asked by Beth 
chemistry
The rate of effusion of a particular gas was measured and found to be 23.0 mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 46.2 mL/min. What is the molar mass of the unknown gas?
asked by Anonymous 
Geometry
A farmer uses 140 ft. of fencing to enclose a rectangular field. if the ratio of length to width is 3:4, find the diagonal of the field. Any help is appreciated, thank you!
asked by Rachel 
physics
Identify the actionreaction paris in the following situations: a) a person takes a step b) a snowball hits someone in the back c) a footbal player catches a ball d) a leaf falls to the ground HELP
asked by Alecia 
Physics
A man doing pushups pauses in the position shown in the figure . His mass = 68 kg. Image: img145.imageshack.us/img145/7130/picture1n.png a= 40 cm b= 95 cm c= 30 cm Determine the normal force exerted by the floor on each hand. Determine the normal force
asked by Nicole 
Precalculus
The sphereflake shown (not shown for question) is a computergenerated fractal that was created by Eric Haines. The radius of the large sphere is 1. Attached to the large sphere are nine spheres of radius . Attached to each of the smaller spheres are nine
asked by Tony 
Calculus
The demand function for a product is modeled by : p=10,000(1(3/3+e^0.001x) Find the price of the product if the quantity demanded is (a) x=1000 units and (b) x=1500 units. What is the limit of the price as x increases without bound?
asked by Tyler 
chemistry
What is the de Broglie wavelength of an oxygen molecule, O2, traveling at 503 m/s?
asked by Emily 
physics 111
The 20g centrifuge at NASA's Ames Research Center in Mountain View, California, is a cylindrical tube 58 ft long with a radius of 29 ft (see figure). If a rider sits in a chair at the end of one arm facing the center, how many revolutions per minute would
asked by Blake 
chemistry
Copper reacts with nitric acid according to the following reaction: 3 Cu (s) + 8 HNO3 (aq) > 3 Cu(NO3)2 (aq) + 2 NO (g) + 4 H2O (l) If an pre 1982 copper penny contains 3.10 grams of copper, what volume of 8.00 M nitric acid is required to exactly
asked by Christy 
Organic Chemistry Lab
How does the allylic halide behave under SN2 and SN1 conditions? Briefly explain why the allylic halide should be able to undergo both SN2 and SN1 mechanisms. If this is any relevant to the question, we did an experiment on the SN1/SN2 reactivity of alkyl
asked by Crystal 
chemistry
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.49 105 m/s, what energy was expended in removing the electron from the metal? Express the answer in joules (per electron)
asked by Emily 
physic
A mechanic pushes a 2,500 kg car from rest to a speed v, with 5000J of work. During this process the car moves 25m. Neglecting friction, calculate: a) the final velocity of car b) The horizontal force exerted on the car
asked by Luz 
chemistry
What is the wavelength of the transition from n = 2 to n = 1 for Li2+? Li2+ is a hydrogenlike ion. Such an ion has a nucleus of charge +Ze and a single electron outside this nucleus. The energy levels of the ion are Z2RH/n2, where Z is the atomic number.
asked by Emily 
Physics
A 107 kg clock initially at rest on a horizontal floor requires a 673 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 522 N keeps it moving with a constant velocity. (a) Find ìs between the clock and the floor.
asked by Elizabeth 
physic
to move a large crate across a rough floor, you push down on it at an angle of 21 degree. find the force necessary to start the crate moving, given mass of the crate is 32 kg and the coefficient of static friction between the crate and the floor is 0.57
asked by sid 
physics
An escalator is 15.0 m long. If a person stands on the escalator, it takes 38.0 s to ride from the bottom to the top. (a) If a person walks up the moving escalator with a speed of 0.500 m/s relative to the escalator, how long does it take the person to get
asked by Kelly 
Chemistry
For the reaction: CH4(g) + 2O2(g)>CO2(g)+2H2O (l) ÄH = 50.38 kJ/mol, How many moles of methane (CH4) must be burned to produce 137 kJ of heat?
asked by Luke 
Math
A Rectangle with vertices A, B, C, AND D. The triangle is divided with vertices P AND Q. How many right triangles can you make with using only three of the vertices {A, B, C, D, P, OR Q}. Also The answer is not 12 or 16. Our teacher gave us this hints
asked by Camara 
ethics question
how HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in these laws? How do some businesses try to find their way around these laws?
asked by Anonymous 
chemistry
Calcium carbonate reacts with hydrochloric acid according to the following reaction: CaCO3 (s) + 2 HCl (aq) > CaCl2 (aq) + H2O (l) + CO2 (g) How many grams of calcium carbonate would be required to neutralize 50.0 cm3 of 8.00 M HCl?
asked by Christina 
12th grade PYSICS
A 45.7kg boy on a swing moves in a circular arc of radius 3.80 m.At the lowest position, the child's speed reaches 2.78 m/s. Determine the magnitude of the tension in each of the two vertical support chains. i used mv^2/r, but i keep getting the answer
asked by Samii 
Science
Can anyone give me an acrostic poem on lithosphere?
asked by Victor 
physics
Four tubes are set up in the lab at sea level as shown by the figure. The letter under each tube corresponds the question with the same letter. 1 atm = 101300 Pa = 101300 N/m2 ρwater = 1000 kg/m3 (a) What is the pressure pushing down on the surface of the
asked by Sarah 
Physics
How much work is required to stop an electron (m = 9.11*10^31 kg) which is moving with a speed of 1.50×106 m/s?
asked by Emma 
Spanish 1
4. No es trabajadora. Es _____. a. atrevida b. desordenada c. perezosa d. impaciente C? 9. No me gusta _____ nadar ____ dibujar. a. sí/sí b. sí/ni c. ni/ni d. ni/tampoco I'm going with C now? 15. A mí me gusta nadar. ¿ Y a ____? a. ti b. tu c. tú d.
asked by mysterychicken 
catering
when would you use a parchment frill
asked by brenda 
Math
A culture of bacteria in a petri dish is doubling every hour. If there are 100 bacteria at time t=0, how many bacteria will there be in 12 hours?
asked by Anonymous 
calculus
use the methods of this section to sketch the curve. y=x^33a^2x+2a^3, where a is a positive constant. What do the members of this family of curves have in common? How do they differ from each other?
asked by help 
Physics
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t3t^2+t^3, where theta is in radians and t is in seconds. At t=0, what are (a.) the point's angular position and (b.) its angular velocity? (c.) What is its angular
asked by Scott 
PHSYICS
A HIKER SHOUTS TOWARD A VERTICAL CLIFF 685 M AWAY. THE ECHO IS HEARD 4.00 SECONDS LATER. WHAT IS THE SPEED OF SOUND OF THE HIKER'S VOICE IN AIR?
asked by ROWDY ANDRESS 
Spanish 1
5. No, ____ me gusta ir a la escuela a. nada b. no c. pues d. ni B? 9. No me gusta ____ nadar ____ dibujar. a. si/si b. si/ni c. ni/ni d. ni/tampoco D? Thanks MC
asked by mysterychicken 
Physics
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t3t^2+t^3, where theta is in radians and t is in seconds. At t=0, what are (a.) the point's angular position and (b.) its angular velocity? (c.) What is its angular
asked by Scott 
physics
The weight of an object is the same on two different planets. The mass of planet A is only fifteen percent that of planet B. Find rA/rB, which is the ratio of the radii of the planets.
asked by megan 
World History
How did people modify to their environment in the MohenjoDaro?
asked by Janet 
Art/Englishcitations
How would i shorten the following citation for subsequent citations in Turabian style? Department of NineteenthCentury, Modern, and Contemporary Art. "Vincent van Gogh (1853–1890)". In Heilbrunn Timeline of Art History. New York: The Metropolitan Museum
asked by Anonymous 
chemistry
Calculate the shortest wavelength of visible light (in nanometers) seen in the spectrum of the hydrogen atom. nm What are the principle quantum numbers for the levels in this transition?
asked by Emily 
chemistry
How do you calculate the energy released when 1 mole of ethanol, C2H5OH, is burned?
asked by william 
Physics help please
The drawing shows a collision between two pucks on an airhockey table. Puck A has a mass of 0.030 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.055 kg and is initially at rest. The
asked by joseph 
Chemisty
ok so heres the question: Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. For 100.7 MHz. the equation to be used is E=Hc/lambda H is planks constant: 6.626*10^ 34. andddd c is the speed of light:
asked by Tee 
physics please help me
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides headon with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below. (a) elastic collision
asked by dan 
Calculus
After t years, the value of a car that originally cost $16,000 depreciates so that each year is is worth 3/4 of it's value for the precious year. Find a model for V(t), the value of the car after t years. Sketch a graph of the model and determine the value
asked by Chelsea 
Calculus
while shopping for wine for his wedding, Kepler noticed that the price of a barrel of wine (here assumed to be a cylinder) was determined solely by the length d of a dipstick that was inserted diagonally through a hole in the top of the barrel to the edge
asked by Ken 
Physics
61 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 29 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after
asked by matt 
physics
An astronaut on the Moon fires a projectile from a launcher on a level surface so as to get the maximum range. If the launcher gives the projectile a muzzle velocity of 23 m/s, what is the range of the projectile? [Hint: The acceleration due to gravity on
asked by ayanna 
physics
A mass m is attached to the end of a spring (constant k). The mass is given an initial displacement x0 from equilibrium, and an initial speed v0. Ignoring friction and the mass of the spring, use energy methods to find the following in terms of the given
asked by Lily 
physics
two ropes attached to I beam (mass 500 kg). ropes make angles of 60 degrees with horizontal. Determine tension in each rope
asked by Anonymous 
Physics
how much work is required to lift a 98N block of ice if A) it is lifted a vertical distance of 5m.? B) you push the same block of ice up a 7m long ramp using in acompare to the work required in b.? C) How does the work required in A compare to the work
asked by Tyler 
geometry
1. the opposite angles of a parallelogram measure(x=30) and (2x50).Find the measure of each angle of the parallelogram. 2. the ratio of two consecutive angles of a parallelogram is 2:3. find the measurement of the angles of a parallelogram. 3.the
asked by marycon 
math
At 3 pm a plane left the airport for LA traveling at 600 mph. At 3:30, another plane left the same airport on the same route traveling 650 mph. What time did the 2nd plane overtake the first. A. 5:15 pm B. 6:45 pm C. 6:50 pm D: 7:15 pm E: 9:30 pm Is D
asked by Sam 
chemistry
Complete and balance: FeCl3 (aq) + KSCN(aq) ___________ + ____________? Cu (s) + HNO3(aq) Cu(NO3)2(aq) + H2O (l) + ____________?
asked by john 
physics
A 4.5 kg body moving in the +x direction at 5.5 m/s collides headon with a 2.5 kg body moving in the x direction at 4.0 m/s. Find the final velocity of each mass for each of the following situations.The collision is elastic. (4.5 kg mass) (2.5 kg mass)
asked by Lily 
physics
A woman holds a 1.9 m long uniform 5.5 kg pole as shown in the figure . her hands are 30 cm apart. Determine the magnitudes of the forces she must exert with each hand. To what position should she move her left hand so that neither hand has to exert a
asked by Nicole 
math
verify that the function satisfies the hypothesis of the mean value theorem on the given interval. then find all numbers c that satisfy the conclusion of the mean value theorem. f(x) = x/(x+2) , [1,4]
asked by help 
physics
A 1500kg car is making a turn with a 100.0m radius on a road where the coefficient of static friction is 0.70. What is the maximum speed the car can go without skidding?
asked by jane 
physics
A hydraulic lift has two connected pistons with crosssectional areas 5 cm2 and 350 cm2. It is filled with oil of density 740 kg/m3. a) What mass must be placed on the small piston to support a car of mass 1400 kg at equal fluid levels? 20 OK HELP: The
asked by Sarah 
physics please help
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides headon with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below. (a) elastic collision
asked by joshua 
10 grade English
Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz. In your paragraph, explain how the tone and purpose of each essay is different. Support your argument with at least one example from each essay.
asked by Randell 
physics please help
The drawing shows a collision between two pucks on an airhockey table. Puck A has a mass of 0.030 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.055 kg and is initially at rest. The
asked by joshua 
algebra
what is the equation of a hyperbola with one vertex at (6,5) and the equation of asymptotes are 5x6y30 and 5x+6y30?
asked by nic 
calculus
let f(x)= 2  2x1. Show that there is no value of c such that f(3) f(0) = f'(c)(30). Why does this not contradict the mean value theorem.
asked by Sasha 
11th grade
A 7.8 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 14.8 N. Find the speed of the block after it has moved 2.8 m. Answer in units of m/s
asked by joshuaJR 
Physics
If the ball is in contact with the player's head for 20 ms, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.)
asked by Anonymous 
chemistry
A mixture of ALuminum and Zinc weighing 1.67 grams is completely dissolved in hydrochloric acid and 1.750 Liters of hydrogen is produced at 273 Kelvin and 1.0 ATM. can you please help me calculate the mass of Aluminum and Zinc in the Sample?
asked by Gloria 
Physics
A pitcher claims he can throw a 0.157 kg baseball with as much momentum as a 1.5 g bullet moving with a speed of 1.50 multiplied by 103 m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? m/s (b) Which has greater kinetic energy,
asked by Amy 
chemistry
A 10.0 g sample of liquid gallium metal, at its melting point, is added to 50.0g of water. The initital temperature of the water is 24.0 degrees C. If the molar enthalpy of freezing gallium is 5.54 kj/mol, what is the final temperature of the water?
asked by Bob 
ap physics
hi i am not sure how to do this...thank you a man is going to pitch a ball. he moves the ball in a circular path of radius 0.6 m, constantly applying a force of 30N to the ball in the same direction as the ball's velocity along the circular path. at the
asked by Appreciative student 
physics
A loaf of bread weighs 3.9 N on earth. What should it weigh, in newtons, on the moon, where the acceleration due to gravity is onesixth that on Earth?
asked by Sabrina 
Math
At the end of each quarter, a 50yearold woman puts $3000 in a retirement account that pays 5% interest compounded quarterly. When she reaches 60, she withdraws the entire amount and places it in a mutual fund that pays 6.9% interest compounded monthly.
asked by dana 
science
What are cell wall consists of ?
asked by Abaigeal 
math
log8 4(square root sign) 1/2
asked by DAVE 
Physics
A jet pilot is in a vertical loop. If the jet is moving at a speed of 1300 km per hour at the lowest point of the loop determine the minimum radius of the cirlce so that the centripetal acceleration at the lowest point does not exceed 6.0g's.
asked by Chris 
Precalc
Fred hits a baseball 3 ft above ground at a velocity of 100 ft per sec and at an Angle of 45 degrees with respect to level ground. The path of the baseball is given by the function f(x)=0.0032x^2+x+3 where f(x) is the height of the baseball in ft and x is
asked by Jackk 
physics
The magnitude of the force that a baseball bat exerts on a ball is 50. newtons. The magnitude of the force that the ball exerts on the bat is
asked by unknown 
ENGLISH
How would you rewrite the following claim to remedy problems of ambiguity? Do not assume that common sense by itself solves the problem. "I am a huge Mustang fan."  Ford Mustang advertisement ANSWERS: 1. I am a big man, and I like Mustangs. 2. I like
asked by Jim 
8th grade
two children are fighting over a toy pull on it from opposite sides .the result is stand off.explain this term of the net force
asked by juan 
english
In "The summer people" by Shirley Jackson. What is the stories point of view? For which Character(s) does the narrator give us insights into the mind? Give an example of this. Explain the symbolism of the gathering storm and how it helps us interpret the
asked by .... 
english
In "The summer people" by Shirley Jackson. What is the stories point of view? For which Character(s) does the narrator give us insights into the mind? Give an example of this.
asked by chey 
Microeconomics
In a patentdriven market, using the concept of minimum efficient scale of production, explain what would happen to competiton and to price when the patent expires? I don't see how I can interweave the minimum efficient scale of production into this
asked by Stephen 
physics
A rectangular block of ice 10 m on each side and 1.1 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. a) How high does the top of the ice block float above the water level? m * .116 OK HELP: Use
asked by Sarah 
Math
Ashley can ride her bike to work in 2/3 of an hour. When she drives to work it takes 1/3 of an hour. If she drives 12 miles per hour faster than she rides her bike, how fast does she ride her bike?
asked by Chris 
Geometry
is it possible to constuct a triangle with the lengths of 5ft,6ft, and 12 ft?
asked by Skylar 
history
cause: americans moved into spanish texas effect: what's an effect
asked by allen 
math
write the exponential equation in logarithmic form (5/4)^2 = 16/25
asked by ELK 
science
What is the net force of a 2.0N force and a 3.0N force acting on an object in the same directions?
asked by ced 
physics
a pieces of metal of mass 3.6kg is suspended from a spring balance, what is the reading of spring balance in newton, with a metal in air, with the metal in water, the metal in prime and what is the density in which it gives a reading of 33newton
asked by fola 
science
A pitcher claims he can throw a 0.157 kg baseball with as much momentum as a 1.5 g bullet moving with a speed of 1.50 multiplied by 103 m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? m/s (b) Which has greater kinetic energy,
asked by Amy 
PHYSICSSTUCK
A rectangular field is 1.5 km long and 700 m wide. An asphalt road goes around the outside of the field and a dirt path cuts across the field. A student wants to go from A to B on the field. Path x goes along the road and is shown in red; path y is shown
asked by Anonymous 
CHEM
Will you please tell me if these are right? Write the symbol of the caton or anion that give(s) the following reaction:? 1. Forms a precipite with AgNO3 that does not dissolve in HNO3 2. Forms a gas with HCl 3. Give a bright, yelloworange flame test 4.
asked by Jason 
Spanish 1
4. No es trabajadora. Es _____. a. atrevida b. desordenada c. perezosa d. impaciente C? 9. No me gusta _____ nadar ____ dibujar. a. sí/sí b. sí/ni c. ni/ni d. ni/tampoco I'm going with C now? 10. No soy ni generosa a. o tacaño b. ni tacaña c. ni
asked by mysterychicken 
Business law
I need help answering questions to a case. The case is: Wagner V. Columbia Pictures Industries, Inc. I don't know if you can find this online or not. These are the questions I need help with: 1. How might the result of this case have been different if the
asked by Claire 
physics
A pushes with force of 300 N at 25 degrees. B pushes with force of 275 N at 160 degrees. C pushes with force of 325 N at 300 degrees. Find resultant force. I got 187 N at 19 degrees or 161 degrees. Correct? or could you explain more please? Thank you.
asked by Anonymous 
physics
suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity. a. is the friction force equal and opposite to your 150N push? explain b. does the friction force make up the reaction force to your push?
asked by Anonymous 
Physics
61 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 29 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after
asked by Anonymous 
chemistry
A 15.0 g of sample of silver is heated to 100.0 0C and then placed in a constantpressure calorimeter containing 25.0 g of water at 23.0 0C. The final temperature of the system was measured as 25.0 0C. What is the specific heat of silver?
asked by Luke 
math
If you have a circle graph 15 students like basketball 10 like soccer and 5 like softball. Write a ratio problem that relates to this graph and solve the problem. ratio would be 5/6,1/6,1/3 how would a solve this if this is the right ratio. Thank you so
asked by Jill 
Calculus
Year 1960 1970 1980 1990 2000 Rate 39 59 64 89 106 of change (million people per year) Use this data to sketch a graph like that in Figure 5.2 on page 238. Draw rectangles on this graph (as in Figure 5.2) to help you underestimate the total change in the
asked by Erika 
physics
suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity. a. is the friction force equal and opposite to your 200N push? explain b. does the friction force make up the reaction force to your push?
asked by Anonymous 
science
Data: (time, temperature in degrees Celsius) 0,89 1,85 2,78 3,71 4,64 5,64 6,64 7,64 8,64 9,64 9,64 10,61 11,57 12,51 13,45 14,39 15,36 First I had to graph these points on the graph paper provided, which I did. Then it asks to identify the freezing point,
asked by Anonymous 
physics
if i throw a 2kg glob of clay and hit a wall at 3 m/s, how much momentum do i impact to the clay/wall? why?
asked by tay 
physics
A pushes with force of 300 N at 25 degrees. B pushes with force of 275 N at 160 degrees. C pushes with force of 325 N at 300 degrees. Find resultant force.
asked by Anonymous 
7th Grade Geometry
A Rectangle with vertices A B C AND D. The triangle is divided with vertices P AND Q. How many right triangles can you make with using only three of the vertices {A B C D P OR Q}. AND also the answer for this question is not 12 or 6
asked by Jacytiopa 
Chemistry
Regarding the combustion of MgO, would the end product be higher, lower, or the same without removing the Mg3N2 byproduct? I am guessing that it would be higher, but I am not sure. Thank you.
asked by Emmy 
business
. I have $2,000 that I can put away for my daughter’s college education. There is a savings program that it is offering 3.75% for 18 years. How much will she have for college
asked by Anonymous 
math
solve y7y+6=30
asked by Anonymous 
chemistry
Water is a polar solvent. Which of the following will not dissolve in water? sugar table salt vinegar olive oil
asked by smith 
9th grade
how do you think western europes pennisular geography had affected its history and settlements
asked by Anonymous 
Physics
A passenger in a helicopter traveling upwards at 18 m/s accidentally drops a package out the window. If it takes 17 seconds to reach the ground, how high to the nearest meter was the helicopter when the package was dropped? To the nearest meter what was
asked by Jsnl 
accounting
You have been asked to speak at a career fair for high school students in your home town. Specifically, you are making a presentation about your role as an accountant. •Describe for the students the primary objectives of accounting. •Explain the basic
asked by Jennifer 
Physics HELPPPP
A speeder traveling at 37 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 2.62 m/s2, To the nearest tenth of a second how long does it take the policeman to catch the speeder?
asked by Jsnl 
Math
At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many
asked by kyle 
adult education
How will your life experiences prove beneficial as you move through your degree program? Briefly describe two life experiences and illustrate how each will be useful as you pursue academic goals. How can you reject the negative influences in your life and
asked by tee 
math
what is the equation of a hyperbola with one vertex at (6,5) and the equation of asymptotes are 5x6y30 and 5x+6y30?
asked by nic 
English
What are some differences between Beowulf and Wanderer?
asked by Anna 
Physics
Water is moving with a speed of 5.0 m/s through a pipe with a crosssectional area of 4.2 cm2. The water gradually descends 8.2 m as the pipe increases to 9.0 cm2. (a) What is the speed at the lower level? (b) If the pressure at the upper level is 1.8 ×
asked by Megan 
astronomy
The surface magnetic field of the Sun is found by measurement of the extra width in spectral lines due to the ________ Effect.
asked by Lilly 
math
solve for x 2(e^7x)=5
asked by Anna 
physics
A hydraulic lift has two connected pistons with crosssectional areas 5 cm2 and 350 cm2. It is filled with oil of density 740 kg/m3. a) What mass must be placed on the small piston to support a car of mass 1400 kg at equal fluid levels? 20 OK HELP: The
asked by Taylor 
calculus
verify that the function satisfies the hypothesis of the mean value theorem on the given interval. then find all numbers c that satisfy the conclusion of the mean value theorem. f(x) = x/(x+2) , [1,4]
asked by Sasha 
Math
At a party, 55 handshakes took place as everyone shook hands with everyone else in attendance. How many people were at the party?
asked by Renee 
science
Organism A has more juxtamedullary nephrons than organism B. which of these organisms could concentrate urine more effectively and why?
asked by Anonymous 
Chemistry
Based on the balanced equation, C2H4 + 3O2 → 2CO2 + 2H2O calculate the molecules of H2O formed when 135 molecules of O2 are reacted.
asked by Marissa 
Physics
a rifle is fried from the top of a building 220 meters high with an initial velocity of 425 m/s at an angle of 12.0 degrees above the horizontal. a. how long will it take for the bullet to reach the ground? b. how far from the base of the building will the
asked by Anna 
Algebra
how to solve this: what is the largest rectangular area that can be enclosed with 400 ft of fencing? What are the dimensions of the rectangle? Could someone write the equation. I know how to solve it without an equation but I want to know the equation.
asked by Amy 
physics
A force of friction of 3.2N acts on a 1.1kg puck while it is sliding along a horizontal surface. If the initial velocity of the puck was 7.5 m/s , how far will the puck travel before coming to rest?
asked by mercedes 
math
If a room has a perimeter of 32feet how many square floor tiles with sides 1 foot long are needed to cover the floor of the room? Would it be 64 tiles since the area would be 64 sq feet.
asked by Jill 
5th gr ade social studies
what is the fact of Each European gropup that set up colonies settled in a specific part of the Americas.
asked by angel 
science
if we say that one quantity is proportional to another quantity does that mean they are equal to each other explain using mass and weight as an example
asked by kristina 
Math
How would you solve this equation for x? y= 4x^3+15x^21
asked by John 
physics
suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity. a. is the friction force equal and opposite to your 200N push? explain b. does the friction force make up the reaction force to your push?
asked by Anonymous 
math
a factory increases the production of cars annually by 8% if presently it manufactures 211000 cars per year, how many cars will it manufacture per year after 4 yrs. I believe the answer is 287,063 but I need to know the formula
asked by paully 
math
how does the integral of cscx = lncscx  cotx+C and ln tan x/2+C?
asked by julia 
Physics
Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 16?
asked by BG 
chemistry
There is a maximum numerical value for the refractive index of a liquid substance. What is this value and why is it the maximum (HINT: take a look at the mathematical formula!)
asked by 123 
economics
Assume the graph below represents the market demand for a patented prescription drug together with the firmlevel marginal cost and average cost functions for producing the drug. Assume these cost curves do not reflect R&D costs of developing this drug,
asked by tweetie 
math
what is the equation of a hyperbola with one vertex at (6,5) and the equation of asymptotes are 5x6y30 and 5x+6y30?
asked by nic 
physics
You push an 37.4kg box up an incline with an angle of 25 degrees to the horizontal with a force of 230N. 1. What is the component of the crate's weight parallel to the surface? 2. What is the sum of the forces parallel to the surface? 3. What is the
asked by Katherine 
Physics
A woman holds a 1.9 m long uniform 5.5 kg pole as shown in the figure . her hands are 30 cm apart. Determine the magnitudes of the forces she must exert with each hand. To what position should she move her left hand so that neither hand has to exert a
asked by Nicole 
algebra
write an equation of the line containing the specified point and perpendicular to the indicated line (2,5), x2y=3
asked by franklin 
history
cause: british impressed american sailors Whats a effect?
asked by allen 
chemistry
use a combustion reaction of liquid ethanol( C2H5OH) an air as a source of work, assuming T=25 celcius, air pressure is 1 atm, and all products are gases with partial pressure of 10 atm each. How high can one lift a 1000 kg weight by burning 100 g of
asked by Whitney 
Math
A bag contains four balls. Three are red, and the fourth is either red or blue, selected with equal probability. A ball is drawn from the ball and it is red. What is the probability that one of the balls still in the bag is blue?
asked by kyle 
physics
A US Coast Guard cutter is chasing a ship suspected of running contraband cigars out of Cuba. The cutter's trip can be divided into three legs: it travels with a constant velocity of 40.1 km/hr for 1 hour and 45.0 minutes at a navigational direction of
asked by hale 
math
A teacher asked studets to name numbers. After each number, the teacher responded using a certain rule. This table shows the numbers named by the students and the teacher's responses Students input 1,2,3,4,5,6,7 Teachers response 3,3,5,4,4,3,5
asked by TJ 
Maths
For the fixed point iteration method; rearranging method, how can I describe ho the iterative formula works?
asked by Ronald 
English
"the summer people" by Shirley Jackson How does the use of dialect separate the allisons from the townspeople?
asked by Chey 
Math please help!
Find the equation of the tangent line to the curve: 2(x^2+y^2)^2 = 25(x^2y^2) at the point ( 3 , 1 ). The equation of this tangent line can be written in the form y = mx+b
asked by applebottom 
Physic
A block moves up an incline of 45 inches at constant speed, because the action of a force of 15 N parallel to the incline. If the coefficient of kinetic friction is 0.3. Determine the weight of the box.
asked by Luz 
English
1. He got in the car. (What is the part of speech of 'in'?) 2. Get in! (What is the part of speech of 'in' here?)
asked by rfvv 
Math
Your family is planning a 4h car trip. Along the way you are planning to make three 1/2 h stops. At what time should you leave home to arrive at the destination by 8:00 p.m.? how would I do this?
asked by obama 
geometry
Express in terms of x, the value in cents of x lbs. of 40 cent cookies and (30x) pounds of 50 cent cookies.
asked by Finn 
Nervous System
What are the important things about the nervous system?
asked by Viviana 
math
Shane invests $11,000 in bonds that earn simple interst of 6%. The interest is payable at the maturity of bonds after 5yrs. Find the total amount that shane will receive after 5yrs. PLZ SHOW WORK
asked by paully 
ALgebra
solve 3x8>2x1
asked by mike 
math
jasmine is helping her father plant trees to create a border around their back yard jasmine plants a treesevery 25 and her father plants a tree every 15 minutes if they started together how long before they would finsh planting a treee at the same time
asked by emily 
10 grade chem
Ok people my daughter myself and my husband have been unable to answer this question so your help would be appreciated. I asked hours ago but no one answered please help. What is the chemical aroma name for: basil, nutmeg and bayleaf thank you fo your
asked by wilson 
college english
I need to write a response to Hoagland's "City Rat?" I don't know where to begin, or what a possible response can be
asked by Anonymous 
Math
Two sides of a triangle have the same length. The third side measures 4 meters less than twice the common length . The perimeter of the triangle is 16 meters. What are the lengths of the three sides?
asked by Joel 
college english
i need help on writing subtopics for school uniforms. im for them and need to write arguementation paper about it
asked by shonda 
Math
Simplify the expression. (Do not use mixed numbers in your answer.) (5x^7/8)(2y^4/6)(x^9/8)(4y^2/6)
asked by Anonymous 
calculus
find maclaurin series. f(x)=tanx
asked by daan 
Math
 3/4x = 2/7 x= 8/21? and 2 2/5x = 8/15 x=2/9?
asked by obama 
MATH
Grandpa Adams took a nap from 2:32 pm until 3:19 pm. How many sconds was Grandpa asleep?
asked by Anonymous 
Math, Algebra
A=1/2h(b1=b2) A=200 , b1=24 , h=10
asked by Joe 
chemistry
Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n = 7 to n = 6.
asked by Emily 
Social St.
What is so special about Colonial NewYork???
asked by Sumaiya 
physics
A propeller blade has a period of rotation of 0.400s. What is the speed of the outer tip of the propeller blade if the tip is 1.20m from the hub?
asked by jane 
math
What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2?
asked by april 
Math
I'm a seventh grade student, I'm having a hard time trying to understand how to do nth term, where n represents the position of the term?
asked by Jay 
Language arts
What is the adverb in the sentence: It began to rain, and we all ran outdoors.
asked by Evan 
Math
a grid has line at 90degree angles. There are 12 lines in one direction and 9 lines in the other direction. Lines that are parallel are 11 inches apart. What is the least number of 12inch floor tiles needed to cover all of the line interestions on the
asked by Kelly 
math
A poker hand consists of five cards from a standard deck of 52. Find the number of different poker hands of three of a kind (three of one denomination, one of another denomination, and one of a third). 1
asked by liz 
math
I just need to know if I answered this correctly. mLy=37 find the complementary angle Ly That would be 9037= correct?
asked by Jewels 
Social St
Three reasons on why to move to Colonial New York and three reasond why not to move???
asked by Anonoyms 
math
which product is not equal to 1? A. 4/5 x 85/68 = +1 B. 3/27 x 216/24= 1 C. 7/8 x 16/14 = 1 D. 1/12 x 12 = +1 are those right? And if so does that mean the answer is A and D?
asked by liiy 
calc
What is an equation of the line tangent to the graph of f(x)=x2(2x+1)3 at the point where x=1? (that's x squared (2x+1)cubed) I'm having trouble finding the derivative:f'(x)which would be the slope (m). No one has answered this question yet.
asked by Naz 
Art
what is the meaning of "Tango C.191824" of Elie Nadelman? why did he make it? I need some information for that work. Please help me!!!
asked by Catherine 
math208
The price of a technology stock was yesterday. Today, the price rose to . Find the percentage increase. Round your answer to the nearest tenth of a percent
asked by gina morris 
math
complete the order triple 8xy+z=22, 4x+2y3z=13, x3y+2x=6
asked by tiffany 
chemistry
Would you expect the boiling point of a solution to change if you added a nonvolatile solute such as potassium chloride? How? Would an insoluble substance such as sand affect the boiling point? EXPLAIN PLEASEE :] thanks so much!!
asked by 123 
college
visual education i need an example of rhythm
asked by juliet 
Spanish 1
(I don't know how to make the accent marks, or the upside down question mark/exclamation point) 1. "?Como es Juana?" "_______" a. Es paciente b. Muy bien, gracias c. Es profesora d. Es de Chile C? 2. Me gusta dibujar. ______. a. Soy artistico b. Soy
asked by mysterychicken 
economics
Assume the graph below represents the market demand for a patented prescription drug together with the firmlevel marginal cost and average cost functions for producing the drug. Assume these cost curves do not reflect R&D costs of developing this drug,
asked by tweetie 
math
what is the equation of a hyperbola with one vertex at (6,5) and the equation of asymptotes are 5x6y30 and 5x+6y30?
asked by nic 
physics
You push an 20kg crate up an inclin with an angle of 35 degrees to the horizontal with a force of 260N. If the crate is moving at a constant velocity: 1. what is the component of the crate's weight parallel to the surface? 2. WHat is the sum of the
asked by Katherine 
Math
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90 000
asked by Shirley 
5th grade
what are 3 types of engergy collected by telescopes?
asked by Anonymous 
Math
log0.001 =3
asked by Amanda 
history
cause: revolution broke out in haiti effect: I don't know this, can u help me
asked by allen 
history
cause: spanish restricted use of port of new orleans What's the effect?
asked by allen 
chemistry
Can you tell if I'm correct. Which combination in titration has ph=pka and buffer region strong acidstrong base no to both strong acidweak base yes to both weak acidstrong base yes to both weak acidweak base I'm not sure about this one. Can anyone
asked by poet 
Math
Find the equation of the tangent line to the curve: 2(x^2+y^2)^2 = 25(x^2y^2) at the point ( 3 , 1 ). The equation of this tangent line can be written in the form y = mx+b
asked by applebottom 
History: Hoover
Did Hoover fail to bring the country out of the Depression because he had too much gov intervention or was it too little?
asked by Anonymous 
physics
A US Coast Guard cutter is chasing a ship suspected of running contraband cigars out of Cuba. The cutter's trip can be divided into three legs: it travels with a constant velocity of 40.1 km/hr for 1 hour and 45.0 minutes at a navigational direction of
asked by hale 
college
write an equation of the line containing the specified point and perpendicular to the indicated line (2,5), x2y=3
asked by franklin 
social studies
who is the current lieutenant governor of Canada??? I tried searching it, but got nothing! PLZ help
asked by pkd 
PHYSICSHELP
The metre was originally defined as a fraction of the distance from the North Pole to the equator. What problems would this definition of the metre create for people?
asked by Anonymous 
8th grade
i have a project in science and i can't seemed to find the explanation of an element's, silver, symbol. Thanks so much!!!!!!!!!!!!!!
asked by Taavon 9 
SciencePHYSICS
The metre was originally defined as a fraction of the distance from the North Pole to the equator. What problems would this definition of the metre create for people?
asked by Anonymous 
SS
What small country lies between 120 East and 130 East longitude and directly on the Tropic oc Cancer?
asked by mom 
adult education
identify the three domains of development, describe why it is important to consider each domain in the study of adult development, provide an example of how one domain of development impacts the other two.
asked by tee 
math
1 1/2 pt = ____ fl oz
asked by obama 
Math
Find the periodic payment that will amount to the given sum under the given conditions: S=$150,000; interest is 6% compounded semiannually; payments are made at the end of each semiannual period for 11 years.
asked by Jeff 
calculus
Find the dimensions of the right circular cylinder of greatest volume which can be inscribe in a right circular cone with radius of 5 inches and a hieght of 12 inches(hint:use similar triangle property).also draw a label diagram....plz answer its too
asked by daan 
partial pressure
1) the value of Kb after the decomposition of sulfur trioxide (S03). 2SO3 (g)2SO2 (g) +O2 (g) is 1.79 x10^5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine
asked by linda 
chemistry
Can someone please explain why there are so many gas laws. I've been doing my homework with the appropriate formulas, but I'm confused why everyone keeps say that PV=nRT is so wonderful? You can't get the same solution by using this ONE formula, so what is
asked by Becky 
Chem
weight of 1 gallon of hydrochloric acid
asked by m 
Math
At 10 am two cars start traveling toward each other from 287 miles apart. They passed each other at 1:30 pm. If the rate of the fster car exceeded the rate of the slower car by 6 miles per hour, find the rat (in mph) of the faster car. A. 38 B. 40 C. 44 D.
asked by Quinn 
math
8% OFF 112
asked by NAH 
chemistry
the value of Kp after the decomposition of sulfur trioxide (S03). 2SO3 (g)2SO2 (g) +O2 (g) is 1.79 x10^5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the
asked by linda 
Economic
calculate 250000375p=15000+212.5p
asked by Nicky 
Math
sorry but, this is my question : how to solve ∫(sin ^ 3/2 x) dx ?
asked by Briandhika 
English
What is the difference between APA Citation and MLA Citation when you write a bibliography and in paranthetical citations?
asked by Jackie 
writing
Correct this passage,place all corrections in bold print and parthese. Why are great numbers of students choosing to pursue their college degrees using their home computers. Benjamin Franklin said; A penny saved is a penny earned”. This principle applies
asked by kent 
physics
A rock of mass 48 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 275 N. What is the magnitude of the acceleration of the rock?
asked by megan 
MATH INTEREST
A FACTORY INCREASES THE PRODUCTION OF CARS ANNUALLY BY 8%. IF PRESENTLY IT MANUFACURES 211,000 CARS PER YR, HOW MANY CARS WILL IT MANUFACTURE PER YR AFTER 4 YRS... i BELIEVE THE ANSWER IS 287063 BUT IM UNSURE OF THE FORMULA... COULD YOU PLEASE SHOW FORMULA
asked by paully 
math
I need help quick with this problem. Thanks in advance. What is the 14th root of (2)^14 power?
asked by barb 
physics
two ropes attached to I beam (mass 500 kg). ropes make angles of 60 degrees with horizontal. Determine tension in each rope. I ended up with 2829 N for each. Correct? or could you explain more?
asked by Anonymous 
Math
Check please Rewrite using distubutive property 3(x2) 8(z3) (t4)5 2(x7) 3x6 8z24 5t20 2x+14
asked by TiffanyJ 
English
1. The movie Minsu wants to see is Shrek. 2. The movie Minsu wants to watch is Shrek. (Which verb do we have to use? Are both OK? which one is commonly used?)
asked by rfvv 
math
40% of the 25 students in the class are boys. Write 40% as a fraction? Then find the ratio of girls to boys in the class. 10 of the students are boys the ratio would be 10:15? would 40% as a fraction be 4/10??
asked by Jill 
English
1. Look at the Canadian national flag. 2. Look at the national flag of Canada. 3. This is the Chinese national flag. 4. This is the national flag of China. 5. This is American national flag. 6. This is the national flag of America. (Are they all
asked by rfvv 
math
find the local maximum and minimum values of f using both the first and second derivative tests. which method do you prefer? f(x) = x/(x^2+4)
asked by Sasha 
O. Chemistry (Nucleophilic Substitution)
1. Explain why the reagent NaI in acetone encourages SN2 reactions. Provide another nucleophile/solvent combination that encourages SN2. What characteristics will each have? 2. Write the complete mechanism for the reaction of (3S, 4R)
asked by Anonymous 
Chemistry
How many electrons would be required to fill the following sublevels? This is what I got *3s = A *4s = A *3d = C *4d =C *3p =B *2d= E *3f =E *4d =C Choices are as follows A. 2 B 6 C 10 D 14 E There is no such orbital
asked by Kimberly 
AP CALCULUS
What is an equation of the line tangent to the graph of f(x)=x2(2x+1)3 at the point where x=1? (that's x squared (2x+1)cubed) I'm having trouble finding the derivative:f'(x)which would be the slope (m).
asked by Naz 
Microbiology Please Help Anyone
You wish to study a variant [a close relative] of the Tobacco Mosaic virus. Specifically you want to characterize the capsid and genetic component as well as determine the viral load required to cause a disease state. a. What methodologies might you use to
asked by Chels 
Math
A rectangle has a perimeter of 48 cm.The shortest side is 10 cm long.What is the length is the longest side?
asked by Phoenix 
5th grade social studies
describe the geographical features of your community or region. How might they have influenced people to settle there?
asked by angel 
physics
A particle accelerates from rest at 3.1 m/s2. What is its speed 5.5 s after the particle starts moving? Answer in units of m/s.
asked by nohbdy 
Mathematics
Find the periodic payment that will amount to the given sum under the given conditions: S=$150,000; interest is 6% compounded semiannually; payments are made at the end of each semiannual period for 11 years
asked by Becky 
us history
7. Why did the British decide to launch a campaign against the southern colonies in 1778? What advantages and disadvantages did each side have in this region?
asked by Anonymous 
physics
can you help me through this? A boat moves through a river at 7.0 m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 3.5 m/s, how long does it take the boat to make a round trip consisting of a 250 m
asked by Maria 
college english
what are some things I can include in an essay about Hoagland's "City Rat" Please don't reply with links. I can do that myself.
asked by Brian 
English
Can you please tell me if everything is possible? Thank you. 1) Mickey hasn't finished the washing up, yet. He is late for the audition and Storm offers to do the washing up for him. She reminds him that on his first day in London he told her that he
asked by Franco 
physics
an object is released from rest on a planet that has no atmosphere.the object falls freely for 3.46 m in the first second.what is the magnitude of the acceleration due to the gravity on the planet?
asked by bill 
Math
Six girls each invited a date to the Sadie Hawkins dance. Before they joined in the fun, each couple worked in a different booth. The booths were Popcorn Sales, Marriage, Hayrides, Old Time Photos, Lemonade, and Raffle Tickets. Grab your partner and go
asked by DIana 
math
1/3, 2/3, 5/6, 0.3 order from least to greatest
asked by lilly 
math
What are the matrix used for?
asked by katy 
PreAlgebra
40,571 is x % of 76,550
asked by Aly 
Social Studies
What is the timeline for the French and Indian War
asked by John 
Math
Find the domain of (f X g)(x) if f(x) = 2 / x3 and g(x) = 1 / x+4. I know the domain for g(x) is x cannot be 4 but I do not know what else to do.
asked by Hannah 
Information Technology
how can unauthorized persons cause serious problems in a company’s database system?
asked by English 
physics
i apply an 800 N force to the crate a. how long would it take the crate to travel 20m across the warehouse floor(in the direction that i am pushing it)? b. what is the magnitude and direction of the force of friction acting on the crate?
asked by Anonymous 
Accounting
o Describe two business sectors you might want to work in if you were an accountant and explain why in 150 to 200 words.
asked by John 
math208
1/3=3/5x1/2
asked by gina morris 
math
Six fair coins are flipped, the probability that exactly three coins turns up heads is T. If the coins are flipped again, the probability that exactly 16T coins turns up heads is S. If the six coins are flipped again, the probability that exactly 32S coins
asked by zid 
math
What are the matrix used for?
asked by katy 
math
when is these rational function equal to zero? 6x^2/(x^3+1)^2=0 2x/(x^21)^2=0
asked by help 
physics
You exert a force of 325N on the ball and it compresses the spring 44.5cm. ... Charge B (5.0*10^6) is at the origin; charge c (+4.0*10^6) has coordinates (5 ,0),
asked by Anonymous 
math
1/4 + 5/6 + 3/8 = 1 11/24?
asked by liiy 
5th grade
find the missing sum 3+9+15+....+87
asked by Anonymous 
math
Thank you in advance. How do you write an equivalent expression using radical notation for 635^3/4 power? Can I have this before midnight Central time?
asked by barb 
Finance
The Arizona Bay Corporation sells on credit terms o net 30. Its accounts are, on average, 8 days past due. If annual credit sales are 8.4 million, what is the company’s balance sheet amount in account receivable?
asked by Anonymous 
MATH
a ball of radius 1 is dropped into a Vshaped gutter. The ball touches the gutter's sides at the ball's equator. If the shortest distance from the surface of the ball to the vertex of the gutter is 1, what is the angle formed by the sides of the gutter?
asked by bob 
Math
Suppose that a=(rn x rn1 ... r2 x r1 x r0) 10^3. This notation means that a = 10^(3n) x rn + 10^3(n1) x rn1 + 10^3 x r1 + r0. Prove that 13a if and only if 13r0r1+r2r3+...+(1)^nrn
asked by Anonymous 
social studies
Can you tell me some web scit`s on deserts
asked by max 
Math
6 is 98% of x which is 6.122448979 and I have to round to the nearest whole amount where necessary
asked by Aly 
business 115
is offshore outsourcing good for U.S.? and i will the references where you retrieved your answer thank you.
asked by jerry carter 
chemistry
Would u expect the boiling point of a solution to change if u added a nonvolatile solute such as KCl?
asked by 123 
chemistry
What are the chemical aroma names for basil, nutmeg and bayleves
asked by wilson 
sociology
Are there any gender issues involved (differential treatment of men and women) in the film "Catfish in black bean sauce"?
asked by Catherine 
English
Thank you very much for your corrections. Here are some more sentences I'm not sure of. 1) Mickey hasn't finished the washingup, yet. He is late for the audition and Storm offers to do the washing up for him. She reminds him that on his first day in
asked by Franco 
math
What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2? please show/explain work
asked by bob 
English
Is there any basic format for a graphic organizer?
asked by Anna 
Chemistry
Use a combustion reaction of liquid ethanol in air as a source of work, assuming temperature is 25 deg C, air pressure is 1atm and all products are gases with partial pressures of 10atm each. How high can one lift a 1000kg weight by burning 100g of
asked by Jordan 
business
I want to buy a house in 3 years. I need to have a down payment of $20,000. How much do I need to have today in order to have that if I can earn 4.5%?
asked by Anonymous 
math
which product is not equal to 1? A. 4/5 • 85/68 B. 3/27 • 216/24 C. 7/8 • 16/14 D. 1/12 • 12
asked by liiy 
7th grade science
A car with a forward force of 2,000 newtons drives a distance of 20 kilometers in minutes. How much power does it have?
asked by Roland 
8th grade science
Describe the motion of a bicycle in a race in terms speed,velocity,acceleration.
asked by cassie 
math
if (x^65535)1 is divisible by the prime number 65537, x is an integer, and 0 ≤ x < 65537, how many values of x are possible?
asked by kyle 
English
give examples of literary and nonliterary prose by citing examples from any source.350 words
asked by Neetoosha 
Religions of the world
What events and figures have shaped the development of Islam in the United States?
asked by michelle 
history
cause:louisiana purchase was completed effect: napolean sold la to united states Is that right?
asked by allen 
Causal Argument Paper
Hello, I am needing help formulating a question for my English class. We are needing to write an ethical/causal argument. I want to relate it to either animal testing or animal hunting. Is this a decent one? "Is it ethical to continue animal
asked by Aestas 
Language Arts
I have to do some research of the poor in the Victorian Era. These are some things that I have to look for: 1. What kinds of programs were in existence to help the poor? 2. What was a poorhouse? 3. What was Debtor's prison? 4. Why were the poor, poor? Are
asked by Anya 
math
Which product is not equal to 1? A. 4/5 • 85/68 B. 3/27 •  216/24 C. 7/8 • 16/14 D. 1/12 • 12
asked by liiy 
english
what are some american made video games that are violent besides Grand Theft Auto?
asked by kate 
english
I really don't understand how to scan a poem for iambic pentameter. Help!!
asked by Anna 
Chemistry
How can you determine which of any two halogens is more active?
asked by Molly 
college
I need help with an exercise question related to making a list of component objectives for the following scenario: Freydia is a 27year old mother who has been using crack cocaine for 4 years. Her children, ages 7 and 9, have been removed from her care by
asked by Lorie 
history
cause: aaron burr plotted to seize territory what's an effect
asked by allen 
math
multiply and simplify 5Ib. 6oz. * 5
asked by Joe 
h
cause: lewis and clark explored the west effect: What's an effect?
asked by allen 
architecture
can you give me some websites for architectural designs for a 2 bedrooms bungalow?
asked by nic 
math
you commute 63 miles one way to work. the trip to work takes 20 minutes longer than the trip home. your avarage speed on the trip home is 12 mph faster. What is your average speed on the trip home?
asked by john 
english
150 children in our program need expensive dental treatment
asked by victorline 
English
I really need to know if the following questions are correct. 1) Which role did the Church play in medieval times? 2) How was Elizabethan theatre structured? Focus your attention on the description of the stages. 3)Briefly analyse the character of Shylock.
asked by Franco 
Social studies
I have to do a 4h project. and I'm doing mine on the civil war. i need help finding a good catch phrase and information. well mostly information. please help!!!! like informing on the presidents and generals
asked by Erin 
math
5/8 + 5/6 + 3/4 + 2/3 =
asked by Joanne 
math
completing the square 3x^2 +15 33 =0 a=3 b=15 c=33 15+or sqrt2254*3*33/2*3 15+orsqrt225+396/6 is this right because don't you have to subtract not add the 396 please help. thanks
asked by peter 
montgmory county community college
what are the causes of reading books in the soceity?
asked by sam 
business law
Liability to Business invitees. John went to Lisa's Market to pick up a few items for dinner. It was a rainy, windy day, and the wind had blown water through the door of Lisa's Market each time the opened. As john entered through the door, he slipped and
asked by eddie 
human resources
hi what is the organizational system for any company? and how to raw spray diagram for it?
asked by ???? 
science
where on earth is silver found? Thanks!
asked by Taavon 10 
science
What is the net force of a 2.0N force and a 3.0N force acting on an object in the same directions?
asked by ced 
geometry
the quadrilateral has a pweimeter of 60 meters. mp and no are congruent the length of mn is 10 meters and the length of no is 15 meters what is the length of po
asked by emily 
mathematics
write note on concept of surd
asked by dayo 
math
slove the folowing eqaution negtive 23=x+35
asked by emily 
economics
Identify the ROI and NPV of the wireless ordertaking system. Discuss some of the intangibles Lisa needs to consider and make a recommendation as to whether Lisa should order such a system.
asked by Anonymous 
english gcse
shakespeare usually used short stage directions which one is the odd one out and why
asked by mandy 
accounting
What is the future value of 10,000 invested in 5 years Certificate of deposit at 4%p.a, intrest compouneded semi annially at the end of 5 years, assuming that the interest and principle are both paid at maturity
asked by heather hawkins 
calculus
Referring to the Mean Value Theorem and Rolle's Theorem, how can I tell if f is continuous on the interval [a,b] and differentiable on (a,b).
asked by Jason 
Math
how to solve ∫ (sin^3/5 x) dx ?
asked by Briandhika 
gcse english
compare these two quotes they fight tybalt falls he gave me a tremendous dip and roll so that the church jumped over its weathercock
asked by mandy 
religion
what is a religious settlement
asked by tammy 
science
describe how a sodium gradient can be the energy source for cotransport of molecules into the cells of the proximal convoluted tubule
asked by Anonymous 
calculus
find the local maximum and minimum values of f using both the first and second derivative tests. which method do you prefer? f(x) = x/(x^2+4)
asked by Sasha 
science
individuals with diabetes mellitus produce urine that is concentrated and higher in volume than the urine of healthy individuals. Explain why these two characteristics are observed in diabetics.
asked by Anonymous 
calculus...plz ans urgent
Find the dimensions of the right circular cylinder of greatest volume which can be inscribe in a right circular cone with radius of 5 inches and a hieght of 12 inches(hint:use similar triangle property).also draw a label diagram....plz answer its too
asked by daan 
geography
what are some characteristics or facts for globilization?
asked by daniel 
science
aldostrone can stimulate the secretion of hydrogen ions by the kidney. predict the consequences of increased aldosterone secretion on body fluid pH
asked by Anonymous 
English
I have to rite a paper on y animal research is benifical. Is this a good thesis statement? Animal research helps save lives all over the world. It is used to see if a new medicine is safe and the animals used in the experiments are also treated in the most
asked by Sarah 
language arts
What is Gary Paulsen's education?
asked by hunter 
us history
what is a social contract?
asked by jack 
math
x  1/3 = 4/5
asked by obama 
Biology
During skeletal muscle contraction: Choose one answer. A. the A and I bands do not change length. B. cross bridges are formed between myosin and actin. C. minimal tension can be generated when the muscle is close to its normal resting length. D. the
asked by Dean 
science
A patient suffering from diabetes mellitus develops a condition called ketoacidosis. A patient in this situation will tend to hyperventilate in order to compensate for acidosis. explain why hyperventilation might help this.
asked by Anonymous 
public administration
Assume that after all the rhetoric and great debates on health care reform that Congress decided the rate regulation that has been used for a century to control the prices and services of common carriers in transportation is an appropriate model. It
asked by james 
science
If the ball is in contact with the player's head for 20 ms, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.)
asked by Jessie 
ALgebra
f=m(m/g^2) solve for m
asked by mike 
Cool catch phrase
i need a cool catch phrase to introduce The Civil War
asked by Erin 
physics
A 2.99 kg ball is dropped from the roof of a building 161.9 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 12.3 N on the ball. How long does it take to hit the ground> The acceleration of gravity is 9.81 m/s2.
asked by brian 
communication
what are some negative things that occur in the tv show The Simpsons
asked by Anonymous 
Finance
I need help writing scenario style questions for a school business management class
asked by Andy 
PHILOSOPHY
What was William of Ockham's position on predestination? Where is a good sight to find imformation on this subject?
asked by bob 
english
Are repudiate and denounce similar?
asked by liiy 
composition
• Write a paragraph of at least 200 words identifying three challenges that might arise when writing a paper.
asked by rene 
SciencePhysics
The metre was originally defined as a fraction of the distance from the North Pole to the equator. What problems would this definition of the metre create for people?
asked by Anonymous 
algebra
how do I write an equation of the line containing the specified point and perpendicular to the indicated line (2,5), x2y=3
asked by franklin 
math
a ball of radius 1 is dropped into a Vshaped gutter. The ball touches the gutter's sides at the ball's equator. If the shortest distance from the surface of the ball to the vertex of the gutter is 1, what is the angle formed by the sides of the gutter?
asked by bob 
cal
((4)/(3)x)*(sqrt(3x)) i'm not sure how to find the derivative I know that I have to use chain rule so would it be 4/3(sqrt(3x)+((4/3)x)((1/(3x)^.5) If this is right can someone help me simplify it
asked by Anna 
Chemistry
How many electrons would be required to fill the following sublevels? *3s *4s *3d *4d *3p *2d *3f *4d Choices are as follows A. 2 B 6 C 10 D 14 E There is no such orbital
asked by Kimberly 
adult education
I WANT TO WRITE ESSAY describing what us government should do for new orleana and Haiti haveboth brought forth pleas for american aid;oil spills in gulf statesare creating enviromentalconcernes . the wars are causing loss of life . and where you believe
asked by NAH 
Am I right??
Who was the unions general? Ulysses S. Grant Who was the main general for the Confederacy? Robert E. Lee Who was president of the union? Abraham Lincoln Who was the president of the Confederacy? Jefferson Davis Am I right??
asked by Erin 
english
why is the book "flipped" by wendelin van draanen considered a romance novel?
asked by Rebecca 
calculus
find taylor series... a.f(x)=x^32x+4,a=2
asked by daan 
geograpgy
what are some examples of globalization?
asked by Daniel 
calculus
find maclaurin series. f(x)=log^a(1+x)
asked by daan 
communication
what artist degrade females and in what kind of way?
asked by john 
ENGLISH
How would you rewrite the following claim to remedy problems of ambiguity? Do not assume that common sense by itself solves the problem. "Two million times a day Americans love to eat, RiceaRoni  the San Francisco treat." ANSWERS: 1. Two million times
asked by Jim 
Mathematics for Liberal Arts
infinites absolute value symbol l l First look at some small finite sets: Let A={1,5,9} B={U,V,W,X,Y,Z} C={Barrak Obama, Joe Biden, Hillary Clinton} Fill in the blanks with one of the symbols ,= lAl lBl lAl lCl lAl lAl lBl lCl Describe how you decided the
asked by Jamie 
math
If you have 32 pets and 4 are birds what % are birds 4/32= 1/8 how do I convert this to a percent? or do I need to figure this a different way?
asked by Jill 
math
a bicycle rider left town at noon at traveled at a uniform rate of 15 miles an hour. at 2 pm the same day, a motorcycle rider left for the same place at a uniform rate 30 miles an hour higher. at what time did the motorcycle rider overtake the bicycle
asked by abby 
english
Alice Axia’s article discussed overlooked tax deductions. It talked about some of the most commonly missed deductions. Whereas her use of statistics seemed to bolster her arguments, it would have been nice to see her elaborate more about the specific
asked by Anonymous 
chemistry
At l=530 nm:aCuSO4=7.544L/molcm aKMnO4= 3.645 L/molcm At l=800nm: aCuSO4=2.908L/molcm aKMnO4= 5.412L/molcm you use a celleith a path length of 1.0cm An unknown solution containing both CuSO4 and KMnO4 gave an absorbance reading of 0.679 at 530nm and an
asked by Macy 
physics
Using Kepler's constant (9.84 X 10^14), calculate the orbital radius of an artificial satellite whose period of revolution around the Earth is 1.43 X 10^4s(3.64 h).
asked by mercedes 
Math
Find the inverse of the function f(x) = x / 2x+1 I know that you would make this x= y / 2x+1 but now I do not know what to do.
asked by Hannah 
Language Arts
What parts of the rhetorical triangle is irrelevant to formalist critics
asked by Elaine 
Mathematics for Liberal Arts
absolute value symbol l l First look at some small finite sets: Let A={1,5,9} B={U,V,W,X,Y,Z} C={Barrak Obama, Joe Biden, Hillary Clinton} Fill in the blanks with one of the symbols ,= lAl lBl lAl lCl lAl lAl lBl lCl Describe how you decided the
asked by Jamie 
social studies
How much tea was imported to the colonies from Britain in 1773, in 1774, and in 1775?
asked by Sally 
college english
I need help with expanding the following essay. Hoagland describes that he feels like a city rat, living in New York City. There is a lot more violence than there used to be, yet after seeing or hearing about it one just goes on with their life. People
asked by Anonymous 
Physics
A typical model rocket engine exerts an average force of 5 N on its exhaust gas. How much average thrust force does the gas exert on the engine and rocket?
asked by Melissa 
Math
Find the domain of the function sqrt(4x^2). I tried it not sure if i'm correct 4x^2>= 0 x^2>=4 x^2
asked by Jamie 
Calculus
Solve & plot a graph for the following: F(X)=cos(X)cos to second power X for the interval negative pi greater than or equal to X less than or equal to positive pi
asked by Alex 
Algerbra
10,000(1n/20)=6500 please show work
asked by dave 
architecture
I have to do this big project on architecture and i'm only in 5th grade!!!!!!!!!!
asked by Erin 
algebra
what are 2 whole numbers that are multiplied to get a product
asked by kaneisha 
math
Compute a 95% confidence interval for the difference in mean days of overall symptoms for the placebo and zinc lozenge treatments. Use the unpooled standard error and use the smaller of n1  1 and n2  1 as a conservative estimate of degrees of freedom.
asked by Anonymous 
math
What are the matrix used for?
asked by katy