Questions Asked on
September 1, 2011

Velocity and Displacement
The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
asked by Fainah 
physics
Starting at 9a.m you hike for 3h at an average speed of 4mph.You stop for lunch from noon until 2pm. What is your average speed over the interval from 9am to 2pm.
asked by rally 
vector
A golfer takes three strokes to get the ball into the hole once he is on the green. The first stroke displaces the ball 12 ft. north, the second stroke 6.0 ft. southeast, and the third stroke 3.0 ft. southwest. What displacement was needed to get the ball
asked by Nar 
physics
Earth has a mass of 5.98 × 1024 kg. The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth?
asked by jessica 
Velocity and Displacement
A plane is sitting on a runway, awaiting takeoff. On an adjacent parallel runway, another plane lands and passes the stationary plane at a speed of 47 m/s. The arriving plane has a length of 32 m. By looking out the window (very narrow), a passenger on the
asked by Fainah 
Managerial Finance
Compare the performance of East Coast Yachts to the industry as a whole. For each, comment on why it might be viewed as positive or negative relative to the industry. Suppose you create an inventory ratio calculated as inventory divided by current
asked by Debbie 
math
Kendall pitches for his school's baseball team. Every game he averages 5 strikeouts per game. Each game is about 2 hours. If he pitches in 7 games during the season how many strikeouts will he have?
asked by destiny 
programming
Design a class named Book that holds a stock number, author, title, price, and number of pages for a book. Include a method that sets all the data files and another that prints the values for each data field. Create the class diagram and write the
asked by hazy 
social studies
name two things colonial leaders offered to attract settlers
asked by Doug 
math ap
how can you use four rods that measure 2cm, 5cm, 7cm, and 9cm to measure a length of 1 cm?
asked by jazlyn johnson 
Chemistry
Silver has a density of 10.5 g/cm3 and gold has a density of 19.3 g/cm3. Which would have a greater mass, 5 cm3 of silver or 5 cm3 of gold
asked by Monique 
geometry
Lines BA and BC are opposite rays, Lines BD bisects angle EBC and Line BF bisects angle ABE. If the measure of angle EBD=4x+16 and the measure of angle DBC=6x+4 find the measure of ange EBD If the measure of angle ABF =7x8 and the measure of angle
asked by kd 
trig
a propeller turns at 300 rpm. Find the angular speed in rad/sec and the linear speed at the tip if the tip to the center is 30cm
asked by b 
physics
Which of the following equations is dimensionally consistent? A. a3 = 1.2 (v/t)3 + 0.2 x3/t6 + 1.5 v4/x3 B. a3 = 1.2 (v/t)3 + 0.2 x2/t6 +3 v6/x3 C. a3 = 1.2 (v/t)3 + 0.2 x3/t6  1.5 v6/x3 D. a3 = 1.5 (v/t)2 + 0.2 x3/t6  1.5 v6/x3
asked by Jeff 
Physics
Consider two masses m1 and m2 connected by a thin string. Assume the following values: m1 = 4.18 kg and m2 = 1.00 kg. Ignore friction and mass of the string. 1) what is the acceleration of the 2 masses? 2)What should be the value of mass m1 to get the
asked by Logan 
BIO/CHIM
How many grams of sucrose would you need to prepare 10 mL of .01M solution of sucrose(FW+342g/mole)? show your work
asked by milly 
College Math
Ed Moura has $29,000 invested in stocks paying 5%. How much additional money should he invest in certificates of deposit paying 2% so that the average return on the two investments is 3%?
asked by Karen 
nonWestern Music
What is meant by Caribbean music in a new mode?
asked by Rodney 
physics
A small droplet of oil with mass of 1.84×1015 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 6625 N/C. Is the excess charge on the droplet positive or negative? NEGATIVE b.How many excess elementary charges
asked by TP 
physics
A person on a diet might lose 1.5 kg per week. Express the mass loss rate in milligrams per second, as if the dieter could sense the secondbysecond loss
asked by jessica 
physics
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold with a mass of 8.464 g, is pressed into a leaf of 5.036 ìm thickness, what is the area (in m2)
asked by jessica 
Physics
Consider three charges arranged as shown. The picture is three particles in a horizontal line. There charges are represented below in order A B C + + − the distance from A to B is 4.4 cm. The distance from B to C is 4.6 cm A=8.2 µC B=4.5 µC C=−4 µC
asked by Meridith 
Physics
An airplane is ﬂying through a thundercloud at a height of 2100 m. (A very dangerous thing to do because of updrafts, turbulence,and the possibility of electric discharge.) If there is a charge concentration of 20.7 C at height 3280 m within the cloud
asked by Mary 
Physics
Consider a disk of radius 2.6 cm with a uniformly distributed charge of +3.6 µC. Compute the magnitude of the electric ﬁeld at a point on the axis and 3.3 mm from the center. The value of the Coulomb constant is 8.98755 × 10^9 Nm2/C2. Answer in units
asked by Monica 
Algebra
A car can average 140 miles on 5 gallons of gasoline. Write an equation for the distance "d" in miles the car can tavel on "g" gallons of gas?
asked by Jennifer 
trig
Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2
asked by Anonymous 
physics
A traditional unit of length in Japan is the ken (1 ken = 1.97 m). What is the volume of a cylindrical water tank of height 7.17 kens and radius 6.21 kens in cubic kens
asked by jessica 
Physics
In a tugofwar between two athletes, each pulls on the rope with a force of 365 N. What is the absolute value of the horizontal force that each athlete exert against the ground?
asked by Logan 
physics
When point charges q1 = +8.9 µC and q2 = +5.4 µC are brought near each other, each experiences a repulsive force of magnitude 0.71 N. Determine the distance between the charges.
asked by Eric Gordon 
Physics
Item 10 Two equally charged, 1.00 spheres are placed with 2.00 between their centers. When released, each begins to accelerate at 225 m/s2 Part A  What is the magnitude of the charge on each sphere? =
asked by Paige 
physics
A tourist purchases a car in England and ships it home to the United States. The car sticker advertised that the car's fuel consumption was at the rate of 40 miles per gallon on the open road. The tourist does not realize that the U.K. gallon differs from
asked by jessica 
physics
Three equal positive point charges of magnitude Q = 8.00ì C are located at three corners of a square of edge length d = 11.8 cm. A negative charge 24.00ì C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of
asked by TP 
geometry
A dog is tied to a leash that is hooked tot he outside corner of a barn that measures 12ft x 20ft. The length of the leash is 16ft. What is the maximum area in which the dog can wander?
asked by ryan 
math
what is the place value for each of the following numbers 2,071,463,548
asked by lexus 
chemistry
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? increasing temperature increasing pressure decreasing surface area decreasing temperature
asked by kara 
Physics
Three blocks rest on a frictionless, horizontal table, with m1 = 9 kg and m3 = 16 kg. A horizontal force F = 104 N is applied to block 1, and the acceleration of all three blocks is found to be 3.3 m/s2. 1) Find m2 2)What is the normal force between 2 and
asked by Logan 
CHEMISTRY:))))
A rock is 5.0% by mass fayolite(Fe2SiO4), 7.0% by mass forsterite(Mg2SiO4) and the remainder silicon dioxide. What is the mass percent of each element in the rock? I have the answers but i don't know how to solve the problem. How would you in steps solve
asked by ALISON 
Physics
Top fuel drag racer can reach the maximum speed of 304 mph at the end of the 1/4mile (402 m) racetrack. (a) Assuming that the acceleration is constant during the race, calculate the average value of the acceleration of the top fuel car. (b) What is the
asked by Logan 
language and barriers
to be truly successful teacher aide in a nonbiased culturally diverse classroom you must? (a)be concerned about and aware of the problems of both minority and nonminority students (b)be particulary sensitive to minority students as many come from unstable
asked by susue 
Shadow
Write an equation to solve each problem. The sides of one cube are twice as long as the sides of a second cube. What is the side length of each cube if the total volume of the cubes is 72 cm^3? Would it be, 3x+6x=72? Thanks
asked by Shadow 
Physics
A ball is thrown directly upward with an initial velocity of 14 m/s. If the ball is released from an initial height of 2.8 m above ground, how long is the ball in the air before landing on the ground? Ignore air drag.
asked by Logan 
math
Angelo is paid double time for each hour he works over 40 hours in a week. Last week he worked 42 hours and earned $660. What is his normal hourly rate?
asked by matt 
chemistry
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.335g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
asked by ALEX 
English
Last night, I slept like a log. Should "I slept like a log" be A. I slept like a baby. B. I slept well. C. I slept as if there were no tomorrow.
asked by Lesley 
physics
Four vectors, each of magnitude 89 m, lie along the sides of a parallelogram. The angle between vector A and B is 77◦. A 89 m C 89 m B 89 m D 89 m What is the magnitude of the vector sum of the four vectors? Answer in units of m I got 346.8757431m, but
asked by Jane 
College Pre Calculus
anne and nancy use a metal alloy that is 19.3% copper to make jewelry. how many ounces of a 19% alloy must be mixed with a 20% alloy to form 110 ounces of the desired alloy?
asked by Anonymous 
Physics
If a car is travelling with a constant speed of 5.53 m/s in the Westward direction, what is the resultant force acting on it? Ignore friction
asked by Logan 
teacher aide language and other barriers
if one child displays discriminatory behavior toward another in the classroom you should? (a)seat the two students apart from one another (b)discipline the child immediately for misbehavior (c)have the children involved discuss their differences (d)consult
asked by susue 
algebra
sketch each parabola using the given information. vertex (2,3) point (6,9)
asked by Anonymous 
Physics 2
A pair of charges exert attractive forces of magnitude 2.4*10^2 N on each other when they are separated by 2.0 m. The total charge of the pair is +3.0 Micro Coulomb. What is the charge on the object with positive/negative charge?
asked by Wilson 
economics
q = 5,000  100p tc= 10,000  10q plot the demand curve marginal revenue curve marginal cost curve profit maximising price, quantity, and profits
asked by debra 
Chemistry
Give two simple tests you would use to distinguish between sodium carbonate and zinc carbonate solids
asked by Sarah 
communications100
Select the phrase below that uses the least biased language: 1.When greeting your new boss, be sure and shake his hand. 2.The linguists received their training at Oxford. 3.Mankind should celebrate this invention. 4.Due to the bravery of the fireman, the
asked by michelle 
Math
Sam lives 5 miles from school, Joe lives 2 miles from schoo, and Andy lives 1 mile from school. What is the range of the miles the boys live from school?
asked by Joei Fierro 
Comp 155
Define repetition in writing and explain why it is important to avoid repeating words or phrases when you create an academic essay
asked by Her 
Chemistry
An irregular shaped stone was lowered intro a graduated cylinder holding a volume of water equal to 2.0 ml. The height of the water rose to 7.0 ml. If the mass of the stone was 25 g, what was the density
asked by Monique 
math
If a flywheel is 4 feet in diameter. Find the speed of a belt which drives the wheel at 400 revolutions per minute?
asked by Suchie :) 
physics
a bullet moving with velocity of 100m/s pierces a block of wood and moves out with a velocity of 10m/s.if the thickness of the block reduces to one half of the previous value,what will be the emerging velocity of the bullet?
asked by armando 
physics
A golfer takes three strokes to get the ball into the hole once he is on the green. The first stroke displaces the ball 12 ft. north, the second stroke 6.0 ft. southeast, and the third stroke 3.0 ft. southwest. What displacement was needed to get the ball
asked by Hari 
Trig
find the exact values of the six trig functions of angle... sin(315degrees) how do i do this?
asked by ALISON 
algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.9 102 µm. Find this earthquake's magnitude on the Richter scale.
asked by Sharon 
english literature
what is the main theme "lamb to the slaughter" story and what is the issued rise by the author?
asked by Anonymous 
Math for the middle school and elementary teacher
what number am I? I am a 3digit number. I am equal to the sum of the cubes of my digits. I am between 100 and 200. My digits are odd. Explain whether or not other solutions to the riddle are possible. My answer was 153...is that correct? please let me
asked by liz 
chemistry
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? increasing temperature increasing pressure decreasing surface area decreasing temperature
asked by kara 
Math
The length of a rectangle is 5 cm greater than it width. The perimeter is 58 cm. What are the dimension of the rectangle? I know the formula for Triangle Perimeter is 2(L+W) and the L is +5 more than the W but I can't write the equation for it. This is
asked by Shadow 
bio
how many grams of sucrose would you need to prepare 10 mK of ,o1M solution of sucrose(FW+342g/mole)? show your work
asked by milly 
Physic
A speedy tortoise can run at 0.14m/s, and a hare can run 15 times as fast. In a race, they start at the same time, but the hare stops to rest for 2 min, so the tortoise wins by a shell(20cm). How long does the race take?
asked by Domonique 
Physics
Three point charges + q, q and + q are placed at the vertices P, Q and R of an equilateral triangle. If F=1/4ðE q 2/ r2 where r is the side of the triangle, What is the force on charge at P due to charges at Q and R? It is along which direction.? Since
asked by Prathiksha 
science please help!!!!!!
which of the following is the result of water erosion? a sand dune b landslide c desert d canyon my answer is a am i right?
asked by LIDIA 
SCIENCE HELP!!!!
ICice scraps and loosens rock particles.what is this an example of? a chemical weathering b biological weathering c mechanical weathering d biological and chemical weathering my answer is c,am i right?
asked by LIDIA 
teacher aide language and other barriers
in an esl classroom teachers aides should prepare themselves to (a)learn or become familiar with appropriate language related software programs (b)handle all disciplinary measures that arise on behalf of the teacher (c)counsel parents reguarding their
asked by susue 
Art and Architecture
Choose a contemporary painting, sculpture, or piece of art that captures your interest. This should be a piece created between the end of World War II (about 1945) and today. You may choose one of the illustrations or color inserts in the textbook, opt for
asked by Samy 
math
Kevin has a rabbit, ferret, gerbil and turtle.he feeds them in a different order each day. How many different orders can he feed his pets?
asked by destiny 
teachers aide in early childhood education program
the most rigidly structured early childhood program disussed in this study unit is ? (a)head start (b)the eclectic model (c)the montessori model (d)DISTAR I cannot figure this one out ,i know it is not head start .can someone please help me
asked by susue 
ENG125
how is the more direct performative aspect of drama and /poetry reflected in these forms? for example, each genre's uses of literary structure, language, technique, and style. How do these literary elements affect your reading experence?
asked by bonnie 
Comm 100 college
Which of the following are included in listening to evaluate? A.separate facts and inferences B.take down notes on everything the speaker says C.try to put yourself in the speaker's shoes D.identify pertinent information we want to remember A?
asked by Nicole 
math
So is the function, f(x)= 2x² 3x + 4 linear or nonlinear? Find f(3) and f(3) for this function. I have the answer f(x)= 2(3)² 3(3) + 4 =29 and f(x)= 2x² 3x + 4 =49 I hapo this is correct and this is non linear?
asked by katie 
english
In the short story The Ransom of Red Chief, how much money did Sam and Bill need to carry our their fradulent scheme in Western Illinois? It sooo depends on the interpretation of the question......
asked by Amy 
MATH
I get really confused with math . I am great with all of the other subjects . In fact I get all B's except for Math , I get 1's !!! I really need help with it . I ask for help but whenever people help me and put it in the most simplest way possible .. I
asked by Kaylyn 
physics
A point charge Q produces an electric field of magnitude 80.5 N/C at a distance of 1.08 m. If the field is directed toward the charge, what is the value of q
asked by Anonymous 
Basic violet 14
1 TB of Basic violet 14 (magenta) in 20 lts of water, how much Sulphur Dioxide do I use?
asked by Dionne 
English
I rewrote all the sentences in the simple present as you suggested to me. Can you please check them? 1) The narrator writes that he has always been fond of pets. He has had pets at home since he was a child. He has continued having pets at home even after
asked by Henry2 
English
I have a writing project. I would like advice from you. This is the assignment. "You've applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for
asked by Linda 
physics
Suppose the volume V of some object hap pens to depend on time t according to the equation V (t) = At3+B/t , where A and B are constants. Let L and T denote dimensions of length and time, respectively. What is the dimension of the constant A? 1. L2/T 2.
asked by rreshs 
Math Graphs
If you were going to graph this function what would be the coordinates of the points that you would plot? Is this a linear or nonlinear function? Explain. f(x)= 2x+5 inputs (5) and (8) f(8)= 2(8)+5=16+5=21 f(5)= 2(5)+5=10+5=15 Would the points be (5,15)
asked by katie 
calculus
Find the slope of the line secant to the following function passing through the given xvalues: f(x) = x3 + 5x; x = 3 and x = 6
asked by Anonymous 
math
find all values of c such that f(x) = (x+1)/(x^2+2cx+4) has domain R
asked by greg 
math
use the ruler and the equation to make a function table. rule: multiply by 7. p times 7 = r
asked by stephanie 
physics
A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (vav) and find the average speed
asked by Jeff 
MATH ( PROBABILITY)
Security codes in Fiji are made up of 4 digits. How many different 4digit codes are possible i)If the first digit cannot be zero. ii)If the first digit cannot be zero and digits cannot be repeated.
asked by FAKAAPO 
economics
Is it true or false? If supply of aproduct increases and demand for the product decreases, the equilibrium quantity will definitely change.
asked by dzingai 
Math
I have a square cake. The cake is iced on top and all the sides. I need to cut the cake in 6 pieces all pieces getting the same amount of cake and icing. Please help me if possible with a diagram.
asked by Sammy 
statistic
The mean salary per day of all the 5000 employees who work in a company is 150 Rs. and the standard deviation is 15 Rs. Let be x bar is the mean salary per day for a random sample of certain employees selected from this company. Find the mean and standard
asked by sandhya 
Ag Bio 1
In general, greater biodiversity exists closer to Earth's equator than in areas closer to Earth's poles. What does this mean in terms of the number of species that are found in these regions? Please help, they might as well have been speaking Japanese D:
asked by Kiersten 
English
A Thirteen Letter Word That Means "A Whole Bunch". The Thirteen Letters Are As Follows: NOSOREGGTIACN
asked by Colleen 
chemistry
it is the rest of my question B. is this reaction exothermic or endothermic? C. what is the oxidizing agent in this reaction D. in corrosion reactions the oxidizing agent actually removes electrons from the oxidized substance . are electrons actually
asked by lauren 
Basic violet 14
what ph level is sulphur Dioxide, I want to put it in my mixture of 4 TB of basic violet 14 and 20 lt of water, but do not want the colour to change, please help me
asked by Dionne 
Honors Chem B
Suppose you want to heat a mug of H2O (250ml) from room temperature 25 degrees celcius to 100 degrees celcius. How much energy would you need from your microwave?
asked by Deahna 
physics
Two vectors A and B are added. Show that the magnitude of the resultant cannot be greater than A+B or smaller than l AB l.
asked by Nar 
algebra
A jogger leaves home and runs at a constant speed of 4 miles per hour. Nine minutes later, a bicyclist follows along the same route at a constant speed of 15 miles per hour. Find the bicyclist's travel time needed to catch the jogger.
asked by Alice 
english
i tried my best to coorrect this, but it still sounds wierd. the following paragraph is about the great gatsby, and how many celebrities relate to Gatsby.c can you please suggest ideas and help me make it sound more fluent. thanks!!! P Diddy, Bill Gates,
asked by yesudas 
Algebra
give an example of a function that you might encounter in everyday life and describe its domain and range.
asked by carmen 
math
What is the algebraic rule for x = 1, 2, 3, 4, ... and y = 3, 9, 18, 30, ...
asked by Roma 
Math
4.3t2.1t2.3=7.6 what would "t" equal?
asked by Kristen 
Algebra
one side of a triangle is 3 inches shorter than twice the length of the shorest side. the third side is 5 inches longer than the shorest side. if the perimeter is 110 inches, find the lengths of all three sides
asked by Anonymous 
math
yancey collects plastic banks. he has 3 different banksa pig, cow and horse. how many ways can he arrange his banks n a shelf?
asked by destiny 
math
tonya and lauren are designing a soccer uniform. They want 2 colors on the shirt. the choices are green, orange, yellow, purple, blue and silver. How many ways can they choose 2 colors?
asked by destiny 
math
A reciepe for tomato and pasta salad calls for 32 ounces of tomatoes and 4 cups of pasta.the recipe makes 8 Servings.If you only wnat to make enough for 2 servings, how much of each ingredient should you use/
asked by n 
Math
Temperature fell 28 degree at 6AM to 17 degree at 11AM. What's the equation ?
asked by Gygy 
Calculus (Urgent!!)
Hello everyone, I need help with the following problems. Find the partial derivative of the following: 1) f(X1, X2) = X1^1/2*X2^3/4 2) f(x1,x2,x3) = ln(x1)x2 + 3x3 3) f(x,y) = 3x + 4y 4) f(x,y) = x^1/2 +x/y + y/x Find the maximum of the following function:
asked by Joan 
Probability
A coin is tossed 6 times. what is the probability of getting at least two heads?
asked by FAKAAPO 
computers
Using the operator precedence that excel 2007 follows,which calculation wuld be perfomed first from the following equation?119+7*3/(86)4/2 a)119+7 b)7*3 c)86 d)4/2 is a) correct answer thank you
asked by vedrana 
algebra
i have tried for a long time and just cant come up with the rule for this function table. x= 1 2 3 4 5 and 6 y=180 165 150 135 120 and 105 if any one can help me thanks.
asked by Trey 
eng
hello, thanks gain for helping me. i just had a few doubts. you said "Puff Diddly is a hiphop star no doubt, and Bill Gates is giving away his fortune to others in need or sick. I am not certain if Bill Gates worries about being rejected by society." my
asked by To BobPursely yesudas 
English
Is there anyhong wrong with these two sentences? 1. Her sister and her are now employed at Beef Barn as cooks. 2. The mechanic told Bill and I that the car was not finished.
asked by Lesley 
Algebra
Nine less than 7 times a number
asked by Nick 
Physics
Which of the following represent examples of the following situation: An object that starts at the origin at t=0 and at some time later its displacement from origin is zero but the velocity is not zero: 1)An object in a uniform circular motion around a
asked by Logan 
maths
I will be very greatful to you if you help me to solve the below problem: A man purchased goods Rs.880.He sold onefourth of the goods at 15%loss.At what percent gain should the remaining be sold to gain 5% on the whole? I had done the above problem like
asked by Ramesh Reddy 
Algebra
Could someone help me reason this equation out? It stumped me. 3x +x(x1)=0 I can only come up with 0 but I know it is more indepth than that. Thanks.
asked by Aria 
English
Thank you very much. Couldyou check these other sentences,please? 1)When reporting a story written in the past, can I use the simple present (present perfect)? Example: the narrator had always been fond of pets. He had had pets at home since he was a
asked by Henry2 
math
(7 + u ) + 5v
asked by debra 
Physics
Which of the following represent examples of the following situation: An object that starts at the origin at t=0 and at some time later its displacement from origin is zero but the velocity is not zero: 1)An object in a uniform circular motion around a
asked by Logan 
homelandsecurity
• Prepare a report that discusses the positive aspects of this action and the potential hazards
asked by jay 
calculus
7cosx+5sinx=2k+1 6 35 3 14
asked by vikas verma 
math
If you were going to graph this function what would be the coordinates of the points that you would plot? Is this a linear or nonlinear function? Explain. f(x)= 2x+5 inputs (5) and (8) f(8)= 2(8)+5=16+5=21 f(5)= 2(5)+5=10+5=15 Would the points be (5,15)
asked by katie 
geometry
Given: VYX = 23x  5 WYX = 18x  2 VYW = 3x + 7 Find all three angles.
asked by Muffin 
chemistry
The melting of 0.140 g of Br2 (which occurs at 7.2 C at 1 atm pressure) absorbs 9.43 J of heat. Compute the enthalpy change in 2.00 mol of Br2 when it freezes.
asked by rafay 
English
Thank you for your help. I have questions. 1. The eighth square on the second row needed 256 spoons of rice, which amounted to a bowl. correct (You said 'correct.' In this sentence 'which' refers to '256 spoons of rice.' This one should be regarded as a
asked by rfvv 
chemistry
what does 9.54e7+7.25e4 equal?
asked by lilly 
physics
A uniformly accelerated particle covers three successive equal distances in time intervals t1, t2 and t3 respectively.
asked by sreekanth 
chemistry
oxygen will react with the metal copper it will also react with the nonmetallic compound butane (c4h10) which ofthese reactions is combustion reaction?explain your answer.
asked by lauren 
algerbra
point b is the midpoint of ac. what is the value of a? c(3a,6/7a)
asked by trevor 
PHYSICS
Suppose you are given that z = c y2/x3 where c is some number. For a particular value of c, x and y, z is equal to 129. Suppose x is decreased by a factor of 2.3 and y is decreased by a factor 7.9. What is the new value of z?
asked by JJ 
chem
using what you know about the valence shells of the metals of the periodic table explain why sodium and potassium are most commonly found bound with halides while manganese and calcium are most commonly found bound with carbonatr
asked by mary 
honors Chem B
How do I find specific heat? from previous question.
asked by Deahna 
9th grade History
Was one of the strengths of the Articles of Confederation that Congress could collect taxes from both the states and individuals?
asked by None of your business 
trig
if cos(theta) equal 3/4 find sin(2theta)
asked by Anonymous 
Personal Finance
◦What is Social Security? Discuss how it fits into your retirement plan. There are concerns that Social Security may have trouble paying full benefits in the future. Why does this matter to you now?
asked by Her 
English
Could you please check these other senteces? 1) he protagonist of the story is sentenced to death and has hallucinations. The seven tall candles on the tables first seem angels and then ghosts to him. 2) After a while, he loses consciousness but not
asked by Henry2 
psychology
10. People do not always demonstrate the behaviors that they observe. According to Albert Bandura, a social cognitive psychologist, what is the key to demonstrating observed behaviors? (Points: 5) Unconditioned stimuli Stimuli control Rewards Habits
asked by Anonymous 
geometry
Given: MQN = 18x  1 MQP = 33x + 10 Ray QN is an angle bisector of MQP. Find MQN and MQP.
asked by RSFNOIWJFOWD 
math pre calculus
Let A=(2,INF] and B=(2,INF). FIND: a.)AUB b.)A (UPSIDE DOWN "U")B c.)A\B d)B\A *I was thinking a was (2,inf), b was (1,2), c was (1,1) and d was (2,inf) but i don't think that is right since i don't have a U in the answers.
asked by loe 
Trig
assume A= alpha using complementary rule how do I solve for alpha? cos(2A+40) =sin(3A60) I don't understand how to start the question. What are the steps in solving for alpha. Do i get cos to equal sin somehow?
asked by ALISON 
geometry
assuming that a=8x,b=9+x,and c=13,find a and b
asked by Anonymous 
English
I left out the following sentences. Thank you very much for your help. 1) That night there was a fire and his house was completely destroyed. 2) When he visited the ruins the day after, he saw a gigantic cat with a rope round its neck against the wall that
asked by Henry2 
science
the last question i do not get can one of y´all help me out lisa is working on a science project her task is to answer the question ¨does rogooti(which is a commerical hair product) affect the speed of hair growth control group: independent variable:
asked by jhon 
calculus
Show that if a,b does not equal 0, then the line with xintercept x=a and yintercept y=b has the equation: x/a + y/b = 1
asked by terra 
algebra
this is algebra review but I can't remember how to solve this at all. I need to graph this equation.. 3x=2y7 I don't know how to get the Y by itself
asked by michelle 
SCIENCE HELP!!!!!
How do weathering and erosion change landforms over time? A. they tear them down B. they build them up C. they make them prettier D. they do not change them much my answer is b,am i right?
asked by LIDIA 
algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single,
asked by Anonymous 
BioChem
What is the pH of hydroiodic acid (HI)?
asked by Max 
English
Posted by rfvv on Tuesday, August 30, 2011 at 7:35pm. Posted by rfvv on Tuesday, August 30, 2011 at 2:04am. 1. The eighth square on the second row needed 256 spoons of rice, which amounted to a bowl. 2. The eighth square on the second row needed 256 spoons
asked by rfvv 
PreCalculas
I a lighthouse is 75 feet tall and boat is out at sea 40 min away, how far is the boaat from the lighthouse. I'm stump on this problem..Help!
asked by Carlos 
english
can you please help me make this paragraph sound a little bit better. thanks!!!im taking about how power from fame and wealth make celebrites think like thir god. this eventually distrys them, or their carrer. Celebrities are viewed top priority in
asked by yesudas 
Science
How many times did earth orbit the sun between140ce and 1543, please show work
asked by Katelyn 
maths
Which of the following discount series is better for a customer. 0%,10% or 18%12%? Explain.
asked by Ramesh Reddy 
PreCalculus
I need to write a polynomial of the smallest degree with roots 5 and 6 and the answer can't have parentheses. Can someone point me in the right direction. I have several of these to do.
asked by Sandra 
TQM HONDA
hi do you guys know what is the quality dimensions of Honda or any car brand, i cant find it on net...thanks
asked by strawberry charlotte 
physics
A positive charge of 1.100ƒÊ C is located in a uniform field of 1.10~105 N/C. A negative charge of 0.100ƒÊ C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge due
asked by Anonymous 
calculus
find cosx and sinx if tanx = 4
asked by rachel 
English
I left out the following sentences. Thank you. 1) The animal becomes his wife’s favourite pet, whereas the narrator immediately starts disliking it. The more the cat is fond of its master, the more he hates it . 2) His hatred grows when, one morning, he
asked by Henry2 
Henry3
Suppose someone invents a new unit of length called a zizzle. If 3.5 zizzles = 1 meter, what is 11.9 zizzles/s in km/hour?
asked by Jeff 
Physics
Any thing with mass has this, even a speck of dust
asked by Help needed! 
Science
What is the name for the study of sound. It starts with an e i think.
asked by Adam 
College Algebra
The school play sold 498 tickets. Students paid $3.50 each, while nonstudents paid $5.50 each. If a total of $2121.00 was collected, how many students and how many nonstudents attended?
asked by Kyle 
math (someone please help me!)
f(x)=((x+1)^3)2 Determine the number of turning points f has.
asked by Amy 
Math
y=(x^2+10)^3 using 4 and 5 would the answer be 4 and 7?
asked by katie 
Honors Chem B
Thank you bobpursley!
asked by Deahna 
calculus
does the sequence a=(2n)! / n! converge? Explain
asked by Todd 
Algebra
Nine less than 7 times a number
asked by Nick 
geometry
Draw all rectangles with an area of 51 square cm with whole number base and height. Find the perimeter of each rectangle
asked by Mila 
maths
A circular pool has a diameter of 3m and is filled to a depth of 70 cm. Mr Thorpe climbs into the pool and submerges for ten seconds while his son measures the new depth at 72 cm. Calculate Mr Thorpe’s volume
asked by ayesha 
math
Scientists have calculated that the Moon's revolution around Earth is increasing by about .015 s per century. At this rate, how long would it take the length of a month to increase by one full day?
asked by matt 
math
What are three points that you can plot to graph the function f(x)=2x² 5? I don't understand this
asked by katie 
MAth
There is a red/red sided coing and a yellow/red sided coin. Player A wins if it all red. Player B wins if it is yellow and a red. I know it it fair but why?
asked by Gabryella Sherman 
Math
Craig reads a book with 10 pages in the morning, a book with 26 pages before dinner, and a book with 10 pages after dinner. Find the mode of the number of pages in the books that Craig read.
asked by Joei Fierro 
algebraII/Math
whai is the answer to 6y5=3(2y+1)
asked by montgomery 
math
solve for sinx=cos2x (between 0 and 2pi)
asked by rachel 
reading
I need a summary on MISSOURI HOMESTEAD......LAURA INGALLS WILDER......BOOK ONE.
asked by mhoward 
math
the function y=20x shows the amount of money in Marcy's bank account after x weeks. How much money will be in the account after 6 weeks?
asked by stephanie 
Physics
Suppose you are given that z = c x2 y4 where c is some number. For a particular value of c, x and y, z is equal to 7. Suppose x is decreased by a factor of 2.6 and y is increased by a factor 4. What is the new value of z?
asked by Mike 
Ethics
I am needing help with informal fallacies. The sentence is: It is morally wrong to cause pain to another person. Therefore, dentists are immoral people. What is the fallacy for this?
asked by Pam 
math
the time of sunrise and the daily high temperature is this a casual relationship?
asked by Anonymous 
Comp 155
Define sentence variety and rhythm in your own words and explain how they interact in effective writing.
asked by Her 
science
3 scientistperform the same experiment. 2 of them got the same answers, 1 of them got something completely different. what should these 3 peple do before trusting their answers and sharing their results with others?
asked by cody 
CHEMISTRY
may i please get some notes on stoichiometry because i don't seem to be getting anything.
asked by elizabeth 
matha
roman symbols
asked by hiranmayee 
math
Let f (x)= x + 32 − 4 x − 13 Choose the correct interval form for the DOMAIN of f and then enter the values for the endpoint(s) in the appropriate answer blank(s). Enter N/A in any unused blanks.
asked by Sydney 
physics
flow of electrons in a conductor is called what?
asked by sue 
Math
(5a)to the power of 3, for a = 1 I just want to know if both of the numbers in the parenthesis have to go to the power of three or if only 1 goes. Thanks :)
asked by EliZaBeTh 
physics
occurs when atomic nuclei decay
asked by sue 
organic chem
what steps should we do if ethanol in a beaker ignites in the laboratory?
asked by Vivian 
Math
list three rational nummbers between 1 and 2
asked by ruth *** 
organic chem
what steps should we do if a large bottle of acetone is broken and spilled in the laboratory?
asked by Vivian 
organic chem
why should we notify the laboratory instructor of any incidents that occur in laboratory?
asked by Vivian 
MATH
write and simplify an expression of 8,038 and 133 meters?
asked by CHACHII"s 
algebra
5245=59684
asked by Anonymous 
math
Factorize the following: 2x^2 + 3x  7
asked by sam 
literature
a villnelle is?
asked by jake 
math
1/2x3=3
asked by Sharon 
MATH
v+(6)=  9 I got v=3
asked by Laura****