Questions Asked on
December 9, 2011

trig
If θ is an angle in standard position and its terminal side passes through the point (20,21), find the exact value of sec(θ).
asked by Anonymous 
physics
if a car generates 18 hp when traveling at a steady 88 km/h, what must be the average force exerted on the car due to friction and air resistance
asked by eli 
chemistry
A 0.12mole sample of nitrogen gas occupies a volume of 2.55 L. What is the volume of 0.32 mol of nitrogen gas under the same conditions?
asked by BB 
Chemistry
Suppose you have two solutions to titrate with NaOH: (a) 10 ml of.1M HCL (b) 10 ml of .1M CH3COOH would you expect either of the solutions to require different volumes of NaOH in order to reach an end point? Explain
asked by Christine 
math
solve each triangle using either the Law of Sines or the Law of Cosines. If no triangle exists, write “no solution.” Round your answers to the nearest tenth. A = 23°, B = 55°, b = 9 A = 18°, a = 25, b = 18
asked by Rick 
english/11th grade
I'm supposed to choose how the italicized noun clause is used. Not so sure about the different types of noun clauses.. can someone help me? & also kinda explain the difference? 1. The chairman heard [what was said about the program.] S OP PN DO 2. A good
asked by Amy 
CHEMISTRY
What is the intermolecular force that exists between a magnesium ion and a hydrogen sulfide? A dipole dipole b london dispersion c ionic bond d ion dipole e ion ion
asked by THOMAS 
Math
Determine the maximum and minimum number of turning points for the function h(x) = 2x^4  8x^3 + 5x 6. Maximum:3 Minimum:1 Is this a valid reason: A quartic polynomial function has a 3 Turning points. The turning point is always 1 less than the degree.
asked by Melinda 
project management
A project exists outside of the standard line organization. its false what is wrong with it sorry i don't have a book,its expensive,we are poor and i cant find any on the net thankyou
asked by hello 
Physics
A rocket leaves a launch pad at liftoff with a great deal of upward momentum. What was initially given downward momentum? a. the launch pad b. the astronauts aboard the rocket c. the expelled fuel d. the entire Earth
asked by HELP 
physics
A motor cyclist travelling at 12m/s decelerates at 3m/s^2. (a)How long does he take to come to rest? (b)How far does he travel in coming to rest?
asked by sim 
calc 1
Evaluate the indefinite integral. e^(8x)sin(e^(8x))
asked by adam 
Accounting
When Resisto Systems, Inc., was formed, the company was authorized to issue 5,000 shares of $100 par value, 8 percent cumulative preferred stock, and 100,000 shares of $2 stated value common stock. Half of the preferred stock was issued at a price of $103
asked by kate 
science
Compound A is provided as a 500mM solution. If 12.5 mL is taken and added to 12.5mL of water, how many moles (or millimoles / micromoles) are there per 0.1mL of the diluted solution?
asked by jake 
Chemistry
N2 and O2 gases react to form dinitrogen pentoxide(N2O5).Calculate deltaH and deltaU for this process per mol of N2 gase knowing that when 101.7g of N2 react with 102.97g of O2 at 25DegC and a constant pressure of 1 atm, 533.5kJ of energy is released as
asked by ndate 
CHEMISTRY
I know this question is already on here but the answer wasn't helpful to me. Liquid Sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 633 C and 400.0 torr at 823 C. Calculate its heat of vaporization.
asked by THOMAS 
physics
the distance between the marks of 0 degree centigrade and 100 degree centigrade is 12cm and if the level of mercury thread is at 4.8 cm then what would be the temperature in celsius scale?
asked by Hareem 
Statistics
A study shows that 10% of americans are lefthanded. Find the probability that at most one student is left handed in a class of 20 students.
asked by Brittany 
chemical kinetics
at 100C the gaseous reaction A==2B+C is observed to be first order.on starting with pure A it is found that at the end of 10min,the total pressure of the system is 176mmHg,and after a long time the total pressure of the system is 270mmHg.a).determine the
asked by Anonymous 
Physics
Which conditions will result in the smallest change in momentum? a. a large force over a long time period b. a large force over a short time period c. a small force over a long time period d. a small force over a short time period
asked by HELP 
Physics
Analyze the collision of a baseball with a bat. During which portion of the collision does the baseball’s velocity reach zero? a. before the collision b. during the collision c. one second after the collision d. onehundredth of a second after the
asked by HELP 
physics
A 1.67kg block of aluminum at 21.7°C is to be melted and reshaped. How much heat must flow into the block in order to melt it? use the following values: For copper: c_copper=0.386 kJ/kg.K T_fusion=1359 K L_fusion=205 kg/K For aluminum: c_aluminum=0.900
asked by maria 
Accounting
The following information is necessary to compute the net assets (stockholders' equity) and book value per share of common stock for Rothchild Corporation: 8% cumulative preferred stock, $100 par $ 200,000 Common stock, $5 par, authorized 100,000 shares,
asked by kate 
Maths
What is the area of the minor segment cut off a circle of radius 10 cm by a chord of length 12 cm? Could you please show me the working out for this question? The answer in the textbook is 16 sq cm. Thanks!!!
asked by Candice 
algebra
Find the mean for each set of data. Round to the nearest tenth if necessary 12, 20, 8, 15, 16, 14, 7, 5, 11, 8, 14 i realy need help on this i keep on getting 12 as the median but the answer choices don't have 12, could u guys help me please
asked by jenna 
Algebra
Algebraically at what temp is Celsius 1/4 that of Fahrenheit?? ie C = 1/4 F
asked by Marnie 
physics
a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped? (c)from what height was it
asked by sim 
business law
ethics (a). Harveston asserted that Narnia’s service was invalid in part because “the return of service states that process was delivered to “JoAnn Kocerek” and did not show that she “had the authority to accept process on behalf of Harvestons
asked by jon 
statistics
Write the null and alternative hypotheses. Justify which is the claim. A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is less than 900 hours
asked by Catherine 
English
In "How to Build a Fire" what is the answer to this question? Aristotle described various plots. Combining them, we get a tradtional definition of an ideal tragedy. How does this story compare to this traditional ideal of a Greek tragedy? It fits the ideal
asked by Anonymous 
Chemistry
Apply the gas laws to determine how many grams of sodium azide (NaN3) are needed to fill the air bag of your vehicle to a volume of 79.0 L at 35.0 degrees celsius and 1.00 atm. The reaction occurring in the air bag can be repesented by the equation, 2NaN3
asked by Dani 
algebra
List all possible or potential rational zeros for the polynomial below find all real zeros of the polynomial below and factor completely over the real numbers. f(x) x^4 + 10x^3 + 12x^2  58x + 35 Someone anyone?????
asked by sue 
Prealgebra
How would I explain to my friend why the quotient of x^8 and x^2 is x^6 and not x^4. She is questioning the rule. How do I explain?
asked by Sherrie 
physics
A pendulum consists of a massless rigid rod with a mass at one end. The other end is pivoted on a frictionless pivot so that it can turn through a complete circle. The pendulum is inverted, so the mass is directly above the pivot point, and then released.
asked by me 
Computer help!!!
Is 15.30 mbps good download speed? Also is 15 ms ping good and 0.40 mnps upload speed?
asked by Zack 
us history
what do you think were the 15 most important events in us history between the founding of jamestown(1600's) and the end of the great depression (1930's)???
asked by hannah 
economics
The following are hypothetical exchange rates: 2 euros = 1 pound; $1 = 2 pounds. We can conclude that
asked by Michael 
Physics2
2 blocks are in contact on a horizontal table. A force is applied on the first block at a 30* angle. The blocks move to the right side. If m1 = 2kg and m2 = 1kg and F = 6 N kinetic friction at the middle of the 2 blocks and the table = 0.250 Find the
asked by Jim 
Lab
Neither carbon tetrachloride nor trans CHBr=CHBr have dipole moments. Both have cery different molecular geometries. What are their molecular geometries, and why are they different?
asked by tienking 
Power Tools
Hello, I'm not sure if my answers are correct. Can someone review my work to make sure its right. My answers are marked with an *. 1. What is the typical noload speed of a highspeed drill? A. 1,000 rpm *B. 2,500 rpm C. 3,000 rpm D. 3,500 rpm 2. Why
asked by Joe 
Math
Convert to degrees: (5pi/8) How would I do this?
asked by Jill 
Alg2
An anthropologist finds there is so little remaining Carbon14 in a prehistoric bone that instruments cannot measure it. This means that there is less than 0.5% of the amount of Carbon14 the bones would have contained when the person was alive. How long
asked by Rock 
math
The length of a rectangle is one more than seven times the width. The perimeter of the rectangle is 26 7/8 square inches. Find eight times the width.
asked by kia 
math
Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help
asked by kia 
PRECALC
sin(arctan(4/3) okay so i made arctan(4/3) = x so im solving for sin(x) and x= arctan(4/3) so then tanx = 4/3 and now im stuck i don't know what to do after that
asked by Billy NEED HELP 
Personal Finance
What are 4 major consumer credit laws?
asked by Anonymous 
science
One kg weighs 9.8 N on Earth. Would it weigh more or less on the Moon?
asked by Tonya 
Math
A circular piece of wire has a radius of 12 cm. This is cut then bent to form an arc of a circle whose radius is 60 cm. Find the angle subtended at the centre by this arc. Give your answer to the nearest degree. Please show working out Thank you so much!
asked by Candice 
6th grade Science
Please help me with the questions? 1) How do you respond to some stimuli in your environment? The examples I wrote are: If I am hungry, I will eat food. If I am cold, then I will put on a jacket? 2) What does the fur of a bear have to do with homeostatis?
asked by Tim 
pre calc
My teacher asked for the EXACT VALUES of sin(pi/6) cos(pi/4) csc(pi/3) I have to figure it out without a calculator? Also, if I was to do with it with a calculator, would csc be typed as 1/sin?
asked by Jill 
South America
1. Under America's second party system, the Whigs stood for A. policies that kept government hands off business and industry. B. policies that directly supported commercial enterprises. C. a "negative liberal state." D. a "liberally negligent" state.
asked by kitty 
Alg2
the annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 19851999, the Gross Domestic Product of the United States grew about 3.2% per year, measured in
asked by Rock 
geometry
THE DIGONAL OF A CUBE MEASURES 33cm.Find the surface area and the volume of the cube
asked by Anonymous 
math
suppose you deposited $3000 of earned income into an IRA, you canearn an annual interest rate of 8%and you are in a 40% tax bracket (Note:interest rates and tax brackets are subject to change over time, but some assumptions must be made to evaluate the
asked by Anonymous 
math
is the mean or median a better estimate for the parameter of interest?
asked by Anonymous 
physics
A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be stuck to the wall when the floor was removed. what should be the minimum
asked by Greg 
Confuses how my teacher got this?
The question says "Given that cos(theta)=(7/25) and sin(theta)>0, calculate the exact values of tan(theta) and csc(theta). We start out by drawing a triangle. 25 is on the side of the hypotenuse and 7 is on the adjacent side, because cos is adjacent over
asked by Jill 
physics
Suppose 0.0210 kg of steam (at 100.00°C) is added to 0.210 kg of water (initially at 19.5°C.). The water is inside a copper cup of mass 48.9 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside
asked by maria 
chef school
You are given a recipe that feeds 100 1 cup servings. Describe the steps you would take to convert the recipe to 1350.
asked by maurice 
Math
Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?
asked by Esmeralda 
US History
Flow chart. One Box then two boxes then 6 boxes. The words are: Freedom of Religion Freedom of Speech Involvement in Government Obey The Law Respect the Rights of Others responsibilities right to vote rights. Don't know how to put the flow chart together.
asked by Miranda 
accounting
What is the acid test ratio? Is it the same thing as the quick ratio?
asked by Matt 
Math
Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?
asked by Esmeralda 
English  Infinitive phrases
Consider the two sentences: His mother wanted him to study more. She made him study more. In the first, we have an infinitive phrase acting as a direct object, with "him" as the subject of the infinitive. How about the second sentence? Is that also an
asked by Anonymous 
algebra
how do I solve F = 5/9 (F32) ?
asked by Anne 
Algebra
What is the equation of the line having the specified slope and contained the indicated point. M=3/5;(12,6)
asked by Ivette 
physics
A copper sheet of thickness 2.09 mm is bonded to a steel sheet of thickness 1.35 mm. The outside surface of the copper sheet is held at a temperature of 100.0°C and the steel sheet at 26.3°C a) Determine the temperature (in °C) of the coppersteel
asked by maria 
algebra
amys bowling score in her 3rd game was 10 less that her score in her first game and 5 more than her second game. The total points of all 3 games were 275. What is the highest number of points she could have scored in her first game?
asked by Anonymous 
physics
how do we calculate the height of a falling ball with a mass of 0.5kg and a velocity of 10m/s.
asked by sim 
Math
State the exact values of the following. cos(360 degrees) sec(7pi/2) tan(9pi/2) How do I do these? Thanks!
asked by Jillian 
Calc
Calculate the exact values of sin(theta) cos(theta) and tan (theta) when theta=240 degrees. How would I do this with and without a calculator?
asked by Jillian 
science
Why are proteins necessary in your body? What are polymers that build up to make proteins?
asked by Erin 
physics
A merrygoround in a playground has a mass of 200 kg and radius of 1.50 m. You apply a force F = 23 N tangentially to the edge of the merrygoround for a time of 6.5 s. The moment of inertia of the merrygoround is 1/2(mR2). What is the angular
asked by jen 
algebra
9z^2+24z+16/6z^2+5z4
asked by chris 
algebra
The amount spent worldwide in advertising on mobile devices can be estimated by f(x) = 0.4x2 + 0.01x + 0.9, where x is the number of years after 2005 and f(x) is in billions of dollars. b)When will worldwide mobile ad spending reach $41 billion?
asked by pat solon 
integral calculus
evaluate integral by substitution (e^xe^(x))/(e^x+e^(x))dx
asked by flo 
Physics
I am second guessing myself A 4 kg block and a 45 kg block are placed sidebyside at the top of a frictionless ramp. Each is given a very light tap to begin their race to the bottom of the hill. In the absence of air resistance a. the 4 kg block wins the
asked by Anonymous 
physics
An ice skater glides around a rink at a constant speed of 2 m/s. Is the skater accelerating?
asked by alexis 
calculus
The width of a rectangle is measured as 12.3 cm, while the length is measured as 28.8 cm. The width measurement could be off by 1.2 cm, and the length could be off by .04 cm. Estimate the maximum possible error in calculating the area of the rectangle.
asked by Jane 
Physics (verification)
I would love for someone to please verify my solution for this problem: A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be
asked by Greg 
wold history
i need pennfoster text answer for text 007679
asked by myrlene 
Family Law
A __________ agreement can be used by samesex couples in all states. (Points: 5) prenuptial postnuptial premarital cohabitation Is it "D"
asked by Andy 
math
A certain kind of bacteria doubles in quantity every hour. At midnight two nights ago. only two of these bacteria were in a jar. At midnight last night, the jar was full. At what time was the jar half full?
asked by peter 
Physics
A pendulum consists of a massless rigid rod with a mass at one end. The other end is pivoted on a frictionless pivot so that it can turn through a complete circle. The pendulum is inverted, so the mass is directly above the pivot point, and then released.
asked by me 
11th grade english
I am supposed to state how the italicized noun clause is used, but I'm not sure how to tell the difference.. can anyone help? 1. [What I wanted to do] was to finish my work. S
asked by Amy 
math
simplify 144+(317)+213 =?
asked by Anonymous 
Science/Physics
Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be
asked by Clay 
physics
if the force of friction on a sliding scaleis 25n the force to maintain the constant velocity is
asked by cindy 
math
The track coach plans to make 8 lanes each 1meter wide on the running track. The track measures y meters along the inside curb. The track has straight parallel sides and semicircular ends. If the runners in a race lined up at the same spot and stayed in
asked by Raheem 
vocabulary studies
im suppose to write an essay of a non indo european language of my choice is there any other besides japenese korean swahili it has to be a 23 page essay
asked by Ciara's Sister 
Chemistry
The combustion of methane can be described by the equation: CH4 (g) + 2 O2 (g) > CO2 (g) +2H20 (g) If 22.0 mL of CO2 (g) were collected, what volume of H20 (g) also could be collected under the same conditions?
asked by Dani 
vocbulary studies
i have choosen korea is this a good introduction for my brief history of korean language. what is a korean language? korean is one of the worlds oldest living languages.there are about 78 million korean speakers worldwide.korean is spoken by the korean
asked by Ciara's Sister 
science
NaOH has a MW of 40. A 0.12M solution is made by adding how much NaOH to 100mL of water?
asked by jake 
Chemistry
A hotair balloon has a volume of 4.000 x 10^5 L at 30 degrees celsius and a pressure of 748 mmHg. If the average molar mass of air is 29.0 g/mol, what is the mass of air in the balloon?
asked by Dani 
science
2mL of a 10M solution of Compound A is taken and 48mL added. 1mL of this solution is then taken and dried to dryness before being redissolved in 0.1mL. What is the concentration of the 0.1mL solution?
asked by jake 
Chemistry
What is the volume of a scuba tank if it takes 2000 L of air collected at 1.00 atm to fill the tank to a pressure of 150 atm? T is constant.
asked by Dani 
science
Compound B is provided as a solution and has a specific gravity of 0.65 (Specific gravity is the weight in grams per mL of solution) and is known to be 90% pure (each gram of compound B solution only contains 90% Compound B and 10% of degradation
asked by jake 
science
Compound A has a MW of 283. 0.423g of Compound A is dissolved in 13.5mL of water and 1mL of the solution added to 5mL of water to produce “solution A”. What is the concentration of Compound A in “solution A”?
asked by jake 
science
Compound C (MW = 550) is provided at a concentration of 25g/100mL. 1mL is taken and compound D is to be added (MW = 1025, concentration = 75mM) to give a final ratio of compound C:D of 4:1. What volume of compound D is to be added?
asked by jake 
Math
Marla has 3 secret code cards. The first shows a 37. The second card has the first box blanked out and the second box is a 2. The two code cards together equal the third card which is 59. Why is the missing number?
asked by Rick 
precalculus
Determine the maximum and minimum number of turning points for the function h(x) = 2x^4  8x^3 + 5x 6. Maximum:3 Minimum:1 Is this a valid reason: A quartic polynomial function has a 3 Turning points. The turning point is always 1 less than the degree.
asked by Melinda 
History
What famous mob boss aka Scarface was convicted of tax evasion in 1931?
asked by Jaycee 
precalculus
Determine the xintercepts of the polynomial function y=6(x+7)^4 + 5. Round to two decimal places, if necessary. y=6(x+7)^4 + 5 0=6(x+7)^4 + 5 5=6(x+7)^4 5/6 =(x+7)^4 There are no xintercepts??
asked by Melinda 
writing
My son is 3yrs and 6months old he is facing problem in writting small alphabets would u plz help me ,how i teach him :)
asked by sana 
math
an average sized female spider and a large spider can lay a total of 2,100 eggs at one time.The large spider lay 20 times the number of eggs as the average sized spider.How many eggs does the average sized spider lay?
asked by pinky 
algebra
solve the following in the real number system x^3 + 8x^2 + 10x  15 = 0 Please help me!
asked by anon 
precalulus
use the intermediate value theorem to show that f(x) has a zero in the given interval. f(x) = x^5 2x^4 + 5x^3 + 4; [0.9, 0.8] Stuck!
asked by james 
biology
Relationship between free energy change and metabolism in biological system
asked by BIOLOGY 
Math
How much meters are in 7 1/2centimeters
asked by Pop 
algebra
Use the given information about a polynomial whose coefficients are real numbers to find the remaining zeros. degree: 6 Zeros: 8 + 11x(can't put this sign in looks like ii with slash over)i, 7 + 17i, 16  isqrt 2
asked by Alissa 
algebra
find all complex zeros for the following polynomial function please show all your work f(x) = x^3  125 ????????
asked by sue 
pre cal
g(x) = x^2  x 12 / x + 1 I know the division brings it to x 2 + 10/x + 1 but these are the steps I have to follow 1. factor the numerator and denominator and find its domain. ( I know 0 is not in domain) 2. write in lowest ermas as p(x)/ q(x) and find
asked by Amy 
Question
What is Yale looking for a student????
asked by Laruen 
English
Could you please help me check these few sentences? Thank you. 1) I'm happy our head science teacher is so enthusiastic to carry out a project with your and the French school. 2) I read you both agreed to hold the meeting on 27 January and that you are
asked by Henry2 
social studies
i need help in choosing a topic for my social studies fair, i am in the 6th grade i love sports, football especially.
asked by Deshun 
Prealgebra
State a definition of a polynomial in the x. Give an example of a monomial, a binomial and a trinomial. Thank you.
asked by Sherrie 
English
I left out a few sentences I urgently need you to check. Thank you. 1) The programme was first broadcast in 2004.(Can you also say: the fist time it was broadcast was...) 2) They lived building homes from the trees and eating the food which was on the
asked by Henry2 
English
Hello. I'll be very grateful for your help. 1) Is it possible to use "security maintenance" in the sentence: "The country has made progress in security maintenance" or is it better to say "in maintaining security"? 2) Is the sentence correct: "The
asked by Ilma 
math
The cost price of 400 lemons is equal to the selling price of 320 lemons. Then the profit percent is
asked by niroj 
english
In what ways is Hedda Gabler the hero of Hedda Gabler by Henrik Ibsen?
asked by jon 
calculus
The velocity function is v(t) =  t^2 + 4 t  3 for a particle moving along a line. Find the displacement and the distance traveled by the particle during the time interval [2,6].
asked by Anonymous 
English
Could you please check if the following sentences are possible? Thank you. 1) Did you watch TV last night? Yes, I watched a new drama series and last night was the first episode. 2) Last night they broadcast the first episode (possible?) 3) What was it
asked by Henry2 
maths
If a kayak moves at a rate of 12 mph in still water If the river's current flow is 3 mph how long will it take to travel 29 miles?
asked by Anonymous 
Maths
The diameter of a ball bearing is to have an average of 2.0 Cm. A random sample of 10 bearings is selected every hour to check the diameters. The sample selected at 9 a.m. gave the following measurements: 2.02, 2.04, 2.00, 1.98, 1.98, 2.04, 2.04, 2.00,
asked by Naveen 
Maths
Eight coins are tossed at a time,256 times Number of heads observed at each throw is recorded and the results are given below. Find the expected frequencies What are the theoretical values of main and standard deviation? Calculate also the mean the S.D. of
asked by Naveen 
Physics
A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a speed of 3.00 x 10^4 m/s. What is the force exerted on the rocket?
asked by HELP 
Physics
Candona strikes a 0.055kg golf ball with a force of 260 N. If the ball moves with a velocity of 65 m/s, calculate the time the ball is in contact with the club.
asked by HELP 
Physics
A 0.140kg baseball is pitched horizontally at 36.7 m/s. When a player hits the ball, it moves at the same speed, but in the opposite direction. If the bat and the ball are in contact for 0.450 ms, calculate the average force the bat exerts on the ball.
asked by HELP 
Physics
A 6110kg bus traveling at 20.0 m/s can be stopped in 24.0 s by gently applying the brakes. If the driver slams on the brakes, the bus stops in 3.90 s. What is the average force exerted on the bus in both these stops?
asked by HELP 
Physics
The moment of inertia of an asteroid rotating about its own axis is 5.00 ! 10 4 kg"m2. Its angular velocity is 40.0 rad/s. If a force acts on the asteroid for 0.100 s, increasing the angular velocity to 48.0 rad/s, find its magnitude
asked by HELP 
statistics
The probability any one widget is free of defects is 0.93. For quality control purposes the company is concerned about bad batches of widgets. If the widgets are shipped in batches of 20, find the probability of at most 2 defective widgets in one batch.
asked by Jennifer 
Physics
A reversible heat engine operates between thermal reservoirs at 1000 K and 290 K. If 8610 J is extracted from the hot reservoir, how much work is done by the heat engine?
asked by Jon 
Science/Physics
Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be
asked by Clay 
English
Could you please check these definitions? Thank you very much in advance. 1) The programme was very good (is "nice" possible?) An episode is a part of a long TV series. 2) An episode is one of the several parts of a story. An advert is a short film which
asked by Henry2 
physics
The wheel of a car has a radius of 0.390 m. The engine of the car applies a torque of 466 N·m to this wheel, which does not slip against the road surface. Since the wheel does not slip, the road must be applying a force of static friction to the wheel
asked by nagham 
physics
Samuel travels to the east at 15m/hr for 20 minutes. Then hevtravels 30 degrees north of east 2m/s for 15 minutes. What is his displacement?
asked by amanda 
algebra
what is the least prime number between 80 & 90?
asked by linda 
algebra
the ordered pairs (2,3), (2,6) and (6,6) are coordinates of three of the vertices of a rectangle. What are the coordinates of the ordered pair that represents the fouth vertex? (3,6), (6,3), (3,2) or (3,3)
asked by linda 
11th grade english
I'm supposed to choose how the italicized noun clause is used. Not so sure about the different types of noun clauses.. can someone help me? & also kinda explain the difference? 1.The first thing to consider was [how to find a paying job.] S OP PN DO 2.I am
asked by Emily 
Top Schools
Is Clarkstown North or South HS is one of the top best high schools?????? My dad wants me to go to that school after middle school if we won the lottery and move.
asked by Laruen 
science
What is the net force on a box that is being pushed to the left with a force of 50 N while it is also being pushed to the right with a force of 60 N
asked by Tonya 
Precalc
Determine the xintercepts of the polynomial function y=6(x+7)^4 + 5. Round to two decimal places, if necessary. y=6(x+7)^4 + 5 0=6(x+7)^4 + 5 5=6(x+7)^4 5/6 =(x+7)^4 There are no xintercepts?? No one has answered this question yet. Answer this
asked by Anonymous 
Chemistry
How much heat energy, in kilojoules, is required to convert 53.0 g of ice at 18.C to water at 25.0 C ?
asked by Morgan 
SCIENCE
WHAT ARE THREE PARTS OF STRANDS
asked by Anonymous 
physics
The mass of the Mars is about 0.11 the mass of the earth, its radius is 0.53 that of the earth, and the acceleration due to gravity at the earth's surface is 9.80 {\rm m}/{\rm s}^{2}.
asked by Anonymous 
physics
Suppose 0.0210 kg of steam (at 100.00°C) is added to 0.210 kg of water (initially at 19.5°C.). The water is inside a copper cup of mass 48.9 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside
asked by maria 
physics
A 1.41kg aluminum pot contains 2.25 L of water. Both pot and water are initially at 17.5°C. How much heat must flow into the pot and the water to bring their temperature up to 92.7°C? Assume that the effect of water evaporation during the heating
asked by maria 
Question
I'm partcipating in the Doodle 4 Google Competition and like do I have to mail my project in with the entry form???
asked by Laruen 
Question
In college application when they ask Rigor of secondary school record do they means what I did in middle school???
asked by Laruen 
math
What kind of triangle has the angle measurement of 49,53,78
asked by Halimah 
1 Credit for HS
How to earn one credit for high school? Last year when the whole 6th grade visit our middle school (we have 2 middle schools in our district, my friends and other people are going to that middle school but since I'm not going to that middle school the
asked by Laruen 
maths
A coffee manufacture wants a new blend of coffee that sell for $3.90 per pound by mixing two coffees that sell for $2.75 and #5.oo per pound respectively. What amount of each coffee should be blended to obtain the desired mixture? Assume that the total
asked by deniece 
Algebra 1
what is the equations "The sum of two numbers is 75. The first is 9 more than 5 times the second. Find the first number?" What is the equations "Jack's bowling score is 20 less than 3 times Jill's score. Thw sum of their scores is 220. Find the score of
asked by Bailey Davis 
math
is 3 times 6 18 am i correct?
asked by mya 
physics
A 4 kg block and a 45 kg block are placed sidebyside at the top of a frictionless ramp. Each is given a very light tap to begin their race to the bottom of the hill. In the absence of air resistance a. the 4 kg block wins the race. b. the 45 kg block
asked by Anonymous 
math
Rodney need 3/4 of a roll of wrapping paper to wrap 5 gifts. How much wrapping paper does it take to wrap two gifts?
asked by Alicia 
math
Find the 265th term of an arithmetic sequence whose second term is 5/8 and whose 9th term is 71/24 pls help asap
asked by Alicia 
Essay
Is there any essay contests for 2012 (that are due in 2012)???????
asked by Laruen 
world history
what helped unite charlemagne's empire? Viking attacks
asked by mike 
world history
What helped unite Charlemagne's empire? answer A strong efficient government helped unite Charlemangne's empire
asked by mike 
Chemistry (Equilibrium)
Given the reaction below 2NOBr(g) 2NO(g) + Br2(g) and the value of Kc = 1.98, at a temperature of 480 K what is the value of Kp ? (Hint: Use the value of R in the appropriate units.) I used the equation Kp=Kc(RT)^Delta N Then plugged in to get
asked by Summer 
Chemistry
A sample gas is 3.7 L at 15.3 degrees C and the pressure is held at constant. What would be the volume if the temp was raised to 153 degrees C?
asked by Hummer 
trig
If (cosasina)/sina = 2 , then what is tga = ?
asked by Evelina 
calculus
verify the Intermediate Value Theorem if F(x)=squre root of x+1 and the interval is [3,24].
asked by piyatida 
calculus
Find the critical number of g(t)=(t^2)/(5t+4)
asked by diana 
Chemistry
A researcher is studying the decomposition of A as shown by the general reaction below: 2 A(g) 4 B(g) + 2 C(g) Initially, the scientist fills an evacuated 1.772 L flask with 3.710 x 101 moles of species A. Upon equilibrium, it is determined that the
asked by Summer 
calculus
Find the maximum volume of right circular cylinder that can be inscribed in a cone of altitude 12 cm and base radius 4 cm, if the axes of the cylinder and con coincide.
asked by Anh 
Precalc PLEASE HELP!
Calculate the exact values of the cot(theta) and sin(theta) for the acute angle theta if sec(theta)= the square root of 6. Thank you so much!
asked by Jill 
physics
a rock with a mass of 6.0 kilograms is being whirled in a horizontal circle on the end of a rope 1.6 meters long. if the speed of the rock is 2.7 meters per second, what is the magnitude of the centripetal acceleration
asked by Anonymous 
physics
What is a car average acceleration if it slows down from 22ms to 15.7 m/s in 2.15 s?
asked by Dwayne