Questions Asked on
September 21, 2012

physics
A shotputter throws the shot with an initial speed of 15.5m/s at a 34 degree angle to the horizontal. calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.20m above the ground.
asked by Anonymous 
math
if cotx+tanx=a and secxcosx=b then prove that (a^2b)^0.6667 (ab^2)^0.6667=1
asked by zohera 
math
benjie spent 1/3 of his money on clothes and 1/4 of the remainder on food. if he had 180 pesos left, how much did he have first?
asked by jeri 
Physics
During a car crash a 65kg person's head goes from traveling at 50km h1 to stationary in 0.15s. (a)What is the magnitude of the average net force acting on the head of a person with a 4.5kg head? (b)How does this compare with the weight force acting on the
asked by Ellie 
algebra
the spreadsheet shows the monthly revenue and expenses for a new business.use the models to predictt the month in which revenue will equal expense. month revenue expenses jan 4000 22,000 feb 9000 24,000 mar 13,000 25,000 apr 16,000 27,000 may 21,000 30,000
asked by lilman 
math
The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $630 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare
asked by Anastasia 
Physics
A ball is thrown from a point 1.0 m above the ground. The initial velocity is 19.6 m/s at an angle of 30 degrees above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the
asked by Anonymous 
math
a coffee company wants a new flavor of cajun coffee. how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $3 a pound to get mixture worth $6 a pound
asked by bashi 
calculus 2
Find the volume of the solid formed by rotating the region enclosed by y=e^(5x) , \ y=0, \ x=0, \ x=0.8 around the yaxis Please help, i have been attempting these problems for a couple of days
asked by bobby 
math
jim began a 131 mile bicycle trip to build up stamina for a triathlete competetion.unfortunately his bicycle chain broke, so he finished the trip walking. the whole trip took 4 hours. if jim walks at a rate of 3 miles per hour and rides at 37 miles per
asked by bashi 
Physics
An 8g bullet leaves a gun at 700ms1. (a) what is the maximum height that this bullet could reach (ignoring air resistance)
asked by Ellie 
chemistry
A molecule of CHCl3 (chloroform), has the same shape as a molecule of carbon tetrahydride, CH4. But carbon tetrahydride’s boiling point is 164º C and chloroform’s boiling point is 62 ºC. Explain the difference between the boiling points of the two
asked by Anonymous 
physics
A high diver of mass 50.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 2.10 s after her feet first touch the water, what average upward force did the water exert on her?
asked by yeen 
calculus
a) Sketch a curve whose slope is always positive and increasing. b) Sketch a curve whose slope is always positive and decreasing. c) Give equations for curves with these properties. So for a, I drew a positive slope that was concave up. And for b, I drew a
asked by Travis 
physics
A 3 lb bucket containing 40 lb of water is hanging at the end of a 20 ft rope that weighs 4 oz/ft. The other end of the rope is attached to a pulley. How much work is required to wind the length of rope into the pulley, assuming that the rope is wound onto
asked by Anonymous 
Accounting
A $15 credit to Sales was posted as a $150 credit. By what amount is Sales in error? my answer is $135 overstated
asked by Wilson 
Physics
An 8g bullet leaves a gun at 700ms1. (a) what is the maximum height that this bullet could reach (ignoring air resistance)
asked by Ellie 
Physics
A tall strongman of mass m = 93 kg stands upon a scale while at the same time pushing on the ceiling in a small room.If the scale reads 1062 N (about 239 lb), what is the magnitude of the normal force that the ceiling exerts on the strongman?
asked by Anne 
chemistry grade 11
A molecule of CHCl3 (chloroform), has the same shape as a molecule of carbon tetrahydride, CH4. But carbon tetrahydride’s boiling point is 164º C and chloroform’s boiling point is 62 ºC. Explain the difference between the boiling points of the two
asked by leah 
health
A. Fad diet B. Lowcarb diet C. Sticktoit diet D. Counting calories diet =B What are other factors that contribute to being overweight and obese besides diet and behavior? A. Personality and temperament B. Physical fitness and athletics C. Environment
asked by felica 
math
15(5x 4)2^(1) 10(5x  4)
asked by amala 
Physics
A person climbs from a Paris metro station to the street level by walking up a stalled escalator in 96.5 s. It takes 60.0 s to ride the same distance when standing on the escalator when it is operating normally. How long would it take for him to climb from
asked by Laura 
PreAp Physics
A rock is thrown upward at 51.1◦ with respect to the horizontal. As it rises, its vertical component of velocity 1. remains unchanged. 2. decreases. 3. increases. 4. Unable to determine.
asked by Maria 
Chemistry
A 28.4288 g sample of impure magnesium car bonate was heated to complete decomposition according to the equation MgCO3(s) ! MgO(s) + CO2(g) . After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of
asked by Brett 
physics
a couple part in a car on moonlit evening. Find that their car is stop in the sand. The women having studied physics, ties a rope to the car's bumper and stretches it around a tree in front of a car. She then pushes with 200 newton force against the
asked by zianna 
social studies
I need to write a short paragraph in which i use the following key terms: Patroon, Proprietary colony, Pacifist.
asked by Danielle 
Physics
A crane is lifting a 500kg payload straight up at a constant speed of 0.7ms1. (a)What is the power output of the crane. (ignoring losses)? (b)If it takes the cran2 2 minutes to raise the payload to its final height, how far above the ground is this? (c)If
asked by Ellie 
math
The weekly demand and supply functions for Sportsman 5 X 7 tents are given by the following respective functions where p is measured in dollars and x is measured in units of a hundred. Find the equilibrium quantity. Find the equilibrium price.
asked by Anastasia 
All
Any websites for study guides for drivers ed?
asked by Unknown 
physics
A woman at an airport is towing her 17.0 kg suitcase at constant speed by pulling on the strap at an angle θ above the horizontal. She pulls on the strap with a 26.0 N force, and the friction force on the suitcase is 14.0 N.
asked by sean 
science
a lead bullet at 100C strikes a steel plate and melts. what was its maximum speed? the specific heat of lead is 0.13 kJ/kg C
asked by Anonymous 
Chemistry
A mixture of O2 and SO2 is confined in a vessel at equilibrium. Which statement describes the conditions that are true for the mixture? I. The mass of SO2 is greater II. The average molecular velocity of the O2 is greater III. The average kinetic energy of
asked by Helen 
physics
Research on the scientific principle involved in the inflation of an airbag. Explain how this device protects the driver and the front passenger from injuries.
asked by krizha 
Linear Algebra
Solve the following system using Gauss's algorithm (a) x1 + 2x2 + 4x3 + 6x4 = 3 2x1 + x2 + 3x3 = 6 2x1 + x2 + 6x3 + 4x4 = 11 2x1 + x2 + x3 = 0 so the matrix will be: 1 2 4 6 3 2 1 3 0 6 2 1 6 4 11 2 1 1 0 0
asked by Robert 
College Math
In a suburb, housing costs have been increasing at 5.2% per year compounded annually for the past 8 years. A house worth $260,000 now would have had what value 8 years ago?
asked by Fernando 
ASU
A twotailed test is conducted at the 5% significance level. What is the Pvalue required to reject the null hypothesis? Answer: p
asked by LWatson 
accounting
The journal entry to record the withdrawal of cash by Sue Snow, the owner, to pay a personal utility bill would include a debit to __________ and a credit to __________.
asked by t 
Finance
You have reviewed the books of Anderson Incorporated and learned the following: 1.) Quick Ratio is 1.4 2.) Current Ratio is 3.1 3.) Inventory TurnOver is 4.9 times 4.) Current Assets are $820,000 5.) Cash and equivalents are $115,000 Using this
asked by Nk 
chemistry
When 47.5J of heat are added to 13.2 g of liquid, its temperature rises by 1.72 degrees C. What is the heat capacity of the liquid? A cook wants to heat 1.35kg of water from 32.0 degrees C to 100 degrees C. If he uses combustion of natural gas to heat the
asked by Alyssa 
Physics PreAp
014 (part 1 of 2) You drop a stone from a position of rest. How far will it fall vertically in the ﬁrst 2 s? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m 015 (part 2 of 2) If you instead toss it horizontally at 2.7 m/s, how far will it
asked by Maria 
physical science
A 70kg man and a 50kg woman are in a 60kg boat when its motor fails. The man dives into the water with a horizontal speed of 3m/s in order to swim ashore. If he changes his mind, can he swim back to the boat if his swimming speed is 1m/s? If not, can
asked by maria 
essay
Imagine that you are hosting a group of exchange students next term. You are responsible for welcoming the students to campus and acquainting the students with life on campus socially as well as academically. Develop a "Welcome Letter" for the visiting
asked by rose 
Physics
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220mlong cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A
asked by Kelly 
chemistry
how many grams of carbon dioxide can be produced by burning 7.04moles of propane
asked by gabrielle 
Chemistry
I have 3 I don't understand how to do. A 33.2 g of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 12.3 grams. What was the percent iron in the sample
asked by Brett 
physical education
why is aerobic exercise the best exercise of total weight loss and fitness training?
asked by ronaldo 
Physics
Two 30kg children in a 20 kg cart are stationary at the top of a hill. They start rolling down the 80m tall hill and they are traveling at 30 km h1 when they reach the bottom. (The cart had brakes!) How much work was done on the cart by friction during
asked by Ellie 
public speaking
For communication to take place, there has to be: A. transmission of the message. B. medium. C. sharing of meaning. D. absence of noise.
asked by Anonymous 
Physics
You are conducting an experiment inside a train car that may move horizontally along rail tracks. A load is hung from the ceiling on a string. The load is not swinging, and the string is observed to make a constant angle of with the horizontal. No other
asked by JUAN911 
Physics
An elevator is moving at 1.1 m/s as it approaches its destination floor from below. When the elevator is a distance h from its destination, it accelerates with a = −0.55 m/s2,where the negative sign indicates a downward vertical direction. Find h.
asked by Anne 
Physics
A car travels at 64 mi/h when the brakes are suddenly applied. Consider how the tires of a moving car come in contact with the road. When the car goes into a skid (with wheels locked up), the rubber of the tire is moving with respect to the road;
asked by Anne 
physics
a couple part in a car on moonlit evening. Find that their car is stop in the sand. The women having studied physics, ties a rope to the car's bumper and stretches it around a tree in front of a car. She then pushes with 200 newton force against the
asked by Carl 
Physics
A mass with M = 122kg is attached to the bottom of a blockandtackle pulley system.How much tension force is needed to keep the mass at its current position?
asked by Anne 
Physics
A 1560 kg car is traveling with a speed of 14.5 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 53.3 m?
asked by Kellie 
Physics
An object moves in the +x direction at a speed of 30 m/s. As it passes through the origin, it starts to experience a constant acceleration of 3.7 m/s2 in the x direction. (b) How much time elapses before the object returns to the origin? _____________s
asked by arcos15 
physics
a projectile is shot from the edge of a cliff h=145m above ground level with an initial speed of vo=135m/s at an angle of 37.0 with the horizontal. determine time taken to hit point p at ground level. determine the range of x of the projectile as measured
asked by Anonymous 
Physics
A juggler performs in a room with a ceiling 2.71 m above hand level. What is the maximum upward speed (in m/s) which she can give a ball without letting it hit the ceiling? _________m/s
asked by arcos15 
Physics
A car is traveling at a constant negative velocity of 12.0 m/s. The driver steps on the brakes. The car slows to a stop. The car travels 10.0 m while it is slowing down. What is the magnitude of its acceleration? [HINT: Pay attention to direction.]
asked by arcos15 
precal help
The numerator of a fraction is four less than the denominator The sum of the fraction and its reciprocal is 5/2 Find the numerator and denominator if each is a positive integer
asked by Anonymous 
Calculus
The displacement (in meters) of a particle moving in a straight line is given by the equation of motion s = 5/t2, where t is measured in seconds. Find the velocity of the particle at times t = a, t = 1, t = 2, and t = 3. (a) Find the average velocity
asked by Roscoe 
precal help
The numerator of a fraction is four less than the denominator The sum of the fraction and its reciprocal is 5/2 Find the numerator and denominator if each is a positive integer
asked by Anonymous 
Chemistry
If 6.0 liters of methane react with 12.0 liters of oxygen according to the equation CH4 + 2O2 → CO2 + 2H2O, and the temperature and the pressure are kept constant, which of the following is true? a. All the methane and oxygen react. b. Oxygen is in
asked by Helen 
Chemistry
A 1.5 gram sample of a gaseous hydrocarbon has a volume of 820 mL when measured at 227 oC and 2.50 atm. Which of the following is the formula for the gas?
asked by Helen 
physics
It takes you 7.3 min to walk with an average velocity of 1.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m
asked by Carl 
Stats
The time you wait in a bank until you are served by a teller is exponentially distributed with mean 10 minutes. Calculate the probability that you will have to wait between 5 and 15 minutes.
asked by Teniche 
Phamacy math
One teaspoonful diluted to a quart results in a 1/5000 solution. What is the amount of potassium permanganate in grams required to fill this prescription?
asked by Nick 
Art
What style did Filippo Brunelleschi use?
asked by Maria 
Theatre History paper
Can someone tell me where I can Find reliable sources for Electra by Eurpides ?
asked by renee 
7th Grade Science
Please help me with these questions. This is not homework. I am just trying to figure out some things that I need help with. When separating mixtures what is filtration? what is distillation? what is crystallization? what is chromatography? Thank you,
asked by sk8rgurl 
Chemistry
Given 2 moles of NaCl, find the number of moles of Na. If you could show me the exact steps, that would be much appreciated.
asked by Ely 
Algebra
Eva invested a certain amount of money at 12% interest and $1500 more than that amount at 13%. Her total yearly interest was $800. How much did she invest at each rate?
asked by Krish 
mathematics
what is the square and square root of zero
asked by edward 
physics
what is the graph of potential energy and kinetic energy against distance?
asked by edward 
physics
A passenger sitting in the rear of the bus claims that he was injured when the driver slammed on the brakes, causing a suitcase in front of the bus to come flying towards him. If you were the judge in this case, what disposition would you make and why?
asked by krizha 
biochemistry
The pH of 0.02M solution of a weak acid was measured at 7.6. What is the [OH] in this solution? B) The Ka for benzoic acid is 6.4 x 105M. 150 ml of 0.1 M NaOH is added to 200 ml of 0.1 M benzoic acid, and water is added to give a final volume of 1 L.
asked by Emma 
Governement
Please explain the Voting Rights Act of 1965
asked by Vicky 
college math
its estimated that between 1815 and 1975 some 2,580,071,000 copies of the bible were printed. write the word name for 2,580,071,000.
asked by lucy 
Chemistry
How many hydrogen bonds can an ethanol molecule form to neighboring water molecules ? Why?
asked by Lisa 
physics
Research on the scientific principle involved in the inflation of an airbag. Explain how this device protects the driver and the front passenger from injuries.
asked by krizha 
Algebra
Solve for x: logx +log(x5)=2
asked by Fernando 
science
how to prepare 0.100M HCL solution when laboratory grade concentrated by hydrochloric acid has concentration of 37%.what volume of acid is necessary to prepare 500mL of 0.100M of HCL
asked by Qyla 
accounting
Salt River Copmany is evaluating a capital expenditure propsal that has the following predicted cash flows: Intial investment $(43,270) Operation Year 1 20,000 Year 2 30,000 Year 3 10,000 Salvage 0 a. Using a discount rate of 14 percent, determine the net
asked by dillon 
accounting
Salt River Copmany is evaluating a capital expenditure propsal that has the following predicted cash flows: Intial investment $(43,270) Operation Year 1 20,000 Year 2 30,000 Year 3 10,000 Salvage 0 a. Using a discount rate of 14 percent, determine the net
asked by dillon 
Chemistry
Using the equation 4Fe + 3O2 > 2Fe2O3, calculae the total mass of oxgen needed to react wih all of 0.55 g of iron.
asked by Chelsey 
statistics
A twotailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?
asked by Anonymous 
Science
If a yo yo has a speed of 3 m/s at the top of the circle, whose radius is 80 cm, What is its speed at the bottom
asked by Andtrew 
statistics
A twotailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?
asked by Anonymous 
physics
how much negative work is done by friction on a 2000kg car if you slow down from 20 m/s to 10 m/s?
asked by Anonymous 
statistics
A twotailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis? Show work to understand.
asked by Anonymous 
business law
A music club sends you an advertisement. You select ten "free" downloads and agree to become a member. When you get your free downloads, you decide to resign. Does the music club have any rights against you? Why?
asked by Joe 
business law
B. Telephones S.'s store and orders certain goods that S. delivers to B. Neither party says anything about the price or payment terms. B. does not pay S. Is S. entitled to be paid by B.? Why?
asked by Joe 
statistics
Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by
asked by Anonymous 
statistics
Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by
asked by LWatson 
statistics
suppose 45 students in an organization are male and 55 are female. Ten females and 15 males in the organization are graduating students. What is the probability that a: a.) student chosen at random is male or a graduating student? b.) students chosen at
asked by nitz 
Chemistry
A 1.00 g sample of enriched water, a mixture of H2O and D2O, reacted completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solution. A 25.00 mL sample of the 1.00 L solution was reacted with
asked by Adam 
economics
Suppose the president is attempting to decide whether the federal gov should spend more research to find a cure for heart disease. How should policy makers determine the amount of money that should be allocated for research curing heart disease? they
asked by jamma 
mathematics
give the image for r= sin1/2theta
asked by sin 
law/421
How are the UCC requirements different for a merchant versus a nonmerchant
asked by at 
math
if you have a cylinder is that is 3 1/2 in. diameter and 3 in. tall what is the total cubic inches
asked by rebecca 
math
Which exponent makes the statement true?
asked by Anonymous 
Algebra 2
In the graph of y=kx^2 what type of number is k? I think it's the rate of change but I'm not sure
asked by SoccerStar 
Physics
A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the
asked by Laura 
Physics
a bb gun has a muzzle velocity of 325 ft/sec. How long will it take the bb to hit the ground? How far will the bb travel?
asked by Isis 
Calculus
I was able to solve (e), this is the only one I don't get. Determine whether the series is convergent or divergent and say what test you used to solve it. (d) sum n=1 to infinity (5n)^(3n) / (5^n + 3)^n
asked by Paul 
literature
What does the poet find ironic about her situation? In the poem In memory of M.B by Anna Akhmatova.
asked by Angelica 
visual logics
I am trying to write a program to generate a diamond shape each line has odd number of circles. have created the left side of diamond but cant figure how to nest info to make it a complete diamond
asked by darrick 
literature
The most difficult concept in this poem may be that of heaven being the old abode of loneliness. What do you think that means? The poem Loneliness by Rainer Maria Rilke.
asked by anonymous 
Physics
A car is traveling at a constant negative velocity of 12.0 m/s. The driver steps on the brakes. The car slows to a stop. The car travels 10.0 m while it is slowing down. What is the magnitude of its acceleration? [HINT: Pay attention to direction.]
asked by Natalie Delgado 
social studies
With the vital assistance of _______, Theodore Roosevelt established the first comprehensive national conservation policy. A. Upton Sinclair B. William Howard Taft C. Gifford Pinchot D. Samuel Hopkins Adams
asked by Abby 
Calculus
Determine the polar form of the complex number 3  2i. Express the angle theta in degrees, where 0
asked by Anne 
physical scienece
Does every moving body possess kinetic energy? Does every stationary body possess potential energy?
asked by maria 
chemitry
A block of aluminum with a volume of 98.5 cm3 absorbs 67.4 J of heat. If its initial temperature was 32.5°C, what is its final temperature? (density of aluminum = 2.70g/cm3)
asked by Alyssa 
English
Would you use a or an: A(n) Olympic Champion's signature.
asked by Jenny 
Science
How do elements such as chlorine, bromine, sulfur, and boron get into the ocean? A. runoff from rivers and streams B. excretions from marine organisms C. volcanic eruptions D. chemical weathering of rocks Reset Selection
asked by Anonymous 
science
scientist do experimental tests more than once
asked by james 
calc 3
The length script l, width w, and height h of a box change with time. At a certain instant the dimensions are script l = 7 m and w = h = 5 m, and script l and w are increasing at a rate of 6 m/s while h is decreasing at a rate of 4 m/s. At that instant
asked by Becky 
Physics
1) On a plot of position x versus time t for an object’s motion, what corresponds to the object’s velocity at any given instant t1? A. slope at the point on the plot corresponding to t1 B. intercept on the horizontal axis C. inverse of the slope at the
asked by Liz 
math
tell whether the given rates are equilivent... 32 ft/sec; 192 ft/min. ________________________________ 8.4 gal/day; 2 qt/hr..
asked by Carly 
word power
8. Often applied to politicians, the term _______ suggests hiding one's feelings while obscuring or "spinning" facts. A. simulate B. dissimulate C. vacillate [D. dissemble]
asked by jake 
Le math
Tomas bought some fruit at the market. He bought twice as many melons as apples. He bought 12 more melons than oranges. He bought 11 apples. How many pieces of fruit did Tomas buy?
asked by Makani 
projectile motion
a bullet is fired horizontally with an initial velocity of 600 m/s at a target located 300 m from the rifle. how much time is required for the bullet to reach the target? (B) using the approximate value of g=10 m/s squared how far does the bullet fall in
asked by us 
Le math
Annette wanted to buy new carpet for her Lshaped room. Which two expressions could be used to calculate the area of her room?
asked by Makani 
Physics
A barge is hauled along a straightline section of canal by two horses harnessed to tow ropes and walking along the tow paths on either side of the canal. Each horse pulls with a force of 490 N at an angle of 16° with the centerline of the canal. What is
asked by Anonymous 
social studies
i need 5 major events that occurred during presidency of Franklin pierce. And i need 3 major accomplishments during presidency of Franklin pierce
asked by james 
Physics
Evaluate [r]; i.e., the units of r, in the expression r =v (s  a) (s  b) (s  c)/s where s =.5 (a + b + c) , and a, b, and c have units of meters. 1. [r] =1/m^1/3 2. [r] = m^1/2 3. [r] = m 4. [r] = m^2 5. [r] = m^1/3 6. [r] =1/m^2 7. [r] = m^3 8. [r]
asked by hello 
chemistry
A hot recrystallization solution is not filtered unless absolutely necessary.give reason.
asked by david 
chemistry
An Erlenmeyer flask containing a hot solution is not tightly stoppered to prevent solvent loss during cooling. give reasons.
asked by david 
chemistry
The suction of a vacuum filtration apparatus is broken before the vacuum is turned off.give reason.
asked by david 
chemistry
Vacuum filtration is avoided when crystals are isolated from a very volatile solvent. why?
asked by david 
Drama
I'm Molly Whuppie in my school's production of Great American Tall Tales. They didn't provide any character descriptions and I'm not sure how I should approach this character. Any ideas?
asked by Kelsie 
Science
There are many humancaused losses of biodiversity, such as habitat destruction and introduction of invasive species. Are there any natural events that could alter the diversity index?
asked by Dolphin69 
Math
How Do I Do An Expanded Algorithm For 23x17 ?
asked by Bobby 
Physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 3.00 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.
asked by Kelly 
math
the world record for the 100 meter butterfly swim set in 1999 was 51.81 sec. What was the average rate per second? thx:)
asked by hannah 
math
the world record for the 100 meter butterfly swim set in 1999 was 51.81 sec. What was the average rate per second?
asked by Carly 
Physics
A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the ball take to hit the ground after it reaches its highest point? (d) What is its velocity
asked by Kelly 
Physics
A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 3.20 s for the ball to reach its maximum height.
asked by Kelly 
geo
the uneven distribution of population in russia is due to;a.government laws about housing. b.the country's level of economic development. c.the physicxal environment. d.the country's standard of living
asked by Anonymous 
math help?
2x+4 (2x+6) I did this and ended up with a decimal number. I distributed then combined like terms.
asked by sara 
Hillcrest High
Matty Kaminsky owns a new Volvo. His June monthly interest was $400. The rate is 8 ½ percent. Matty's principal balance at the beginning of June is: (Use 360 days) (Points
asked by Maury 
probability
a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)
asked by nitz 
physics
A car decelerates from 30 m/s and rests at 6 seconds in a period of 5 m/s. How far did the car travel during that time.
asked by Anonymous 
probability
a couple is planning to have three children. Find the probability that the couple will have: a.) 2 girls and 1 boy? b.) 2 girls followed by a boy? c.) at least 1 girl? please answer my question thank you very much, have a good day!
asked by nitz 
probability
a pair of dice is tossed. What is the probability of getting a total of 6?
asked by nitz 
physics
A group of engineering students constructs a slingshot to launch water balloons. The angle of launch is 30° and the initial velocity of the balloon is 14 m/s. The students launch a balloon from the roof of a building and the balloon lands 42 m away from
asked by joseph 
Physics
A car can be driven around a 120 m radius curve at constant speed without sliding if the maximum centripetal acceleration is 0.130g. (a) What is the maximum speed that the car can travel around the curve without sliding? (b) If the car was on a circular
asked by josephz 
Physics
Rain is falling steadily but there is no wind. You are in an automobile that moves on a straight, flat highway at a constant speed of 80 km/hr. You see from the drops on the side window that the rain is falling at an angle of 58° measured from vertical
asked by josephz 
Physics
An object moves such that its xcoordinate is given by x(t) = 6.0 m  (1.5 m/s2) t3 and its ycoordinate is given by y(t) = (8.0 m/s) t  (1.0 m/s2) t2. What is the acceleration of the object at t = 3.5 seconds? Express your answers in unit vector
asked by josephz 
Physics
A rock is thrown vertically from the edge of a cliff that is 500 ft high. It takes 6.5 seconds for the rock to hit the ground at the base of the cliff. Assume air resistance is negligible. (a) What was the initial velocity (magnitude and direction) of the
asked by josephz 
Physics
A group of engineering students constructs a slingshot to launch water balloons. The angle of launch is 30° and the initial velocity of the balloon is 14 m/s. The students launch a balloon from the roof of a building and the balloon lands 42 m away from
asked by josephz 
health
Please post a 150300word response to the following discussion question by clicking on Reply. What are some of the challenges to achieving overall health and wellness? How can you overcome these challenges?
asked by paul 
vocabulary
I have to use propose to answer this question. Change one letter to make another word for market or store.
asked by tyra 
Chemistry
A 1.50 gas sample at 722 and 25.0 contains 7.56 radon220 by volume. Radon220 is an alphaemitter with a halflife of 55.6s
asked by Diamond 
Social Studies
The key terms Patroon, Proprietary colony, and Pacifist are described in the history of Pennsylvania but checking for understanding. Does that mean they want me to copy ashort paragraph from the same Pennsylvania subject or write an example from my own
asked by Danielle 
Chemistry
A 1.50 gas sample at 722 and 25.0 contains 7.56 radon220 by volume. Radon220 is an alphaemitter with a halflife of 55.6. How many alpha particles are emitted by the gas sample in 3.00 minutes?
asked by Diamond 
Science
Can someone tell me if this is correct: How many forces act on an upwardly tossed coin when it gets to the top of its path? A. one the force due to gravity B. two gravity & the force in the coin itself C. three gravity the coins internal force & a
asked by Sue 
instrumental analysis
How long would it take to discharge a 0.026 microFarad capacitor to 6.4 % of its full charge through a resistance of 1.7 MOhm?
asked by sam 
New Fedralism
From the 1970s to the present, a shift in the evolution of public policy moved toward a New Federalism. How did this effect public policy
asked by Anonymous 
Physics
The Earth has a mass of 5.97 x10^24 kg and the Moon has a mass of 7.36 x10^22kg. The average distance between the center of the Earth and the center of the moon is 3.84 x10^8m. (a) How far away would the Moon need to be for the magnitude of the
asked by Ellie 
Physics
A car is moving in the +x direction with the following position equation of motion: x = 5.41(m/s)t  2.7(m/s^2)t^2. (a) What is the initial velocity of the car? 5.41 m/s (b) What is the acceleration of the car? 5.4 m/s^2 (c) At what time does the car come
asked by arcos15 
math
Kate is saving to take an SAT Prep course that costs $350 and saved $180 and she adds $17 to her savings each week. How many more weeks must she save to be able to afford the course? Need the answer right now!
asked by Edward 
PHYSICS
A car is moving in the +x direction with the following position equation of motion: x = 5.41(m/s)t  2.7(m/s^2)t^2. (a) What is the initial velocity of the car? 5.41 m/s (b) What is the acceleration of the car? 5.4 m/s^2 (c) At what time does the car come
asked by arcos15 
chemistry
why is nh3polar but bacl2 non polar
asked by Bijay 
Question regarding college
Alright, I have a question. Last year was my freshman year in high school, and I didn't really care about my grades. I wasn't failing, but they werent excellent. They were about average. This year, I am making almost all a's, im in honors classes, and im
asked by Bryce 
physics
A roof tile falls from rest from the top of a building. An observer inside the building notices that it takes 0.12 s for the tile to pass her window, which has a height of 2.2 m. How far above the top of this window is the roof? m
asked by Anonymous 
Math
A 3ounce serving of tuna fish provides 24 grams of protein. How many grams of protein are in a 10ounce serving of tuna fish?
asked by Karen 
Business Calculus
A rectangular garden of area 480 square feet is to be surrounded on three sides bya brick wall costing $12 per foot and on one side by a fence costing $5 per foot. Find the dimensions of the garden such that the cost of the materials is minimized.
asked by fran 
Physics
A duck has a mass of 2.8 kg. As the duck paddles, a force of 0.09 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.20 N in a direction of 47° south of east. When these forces begin to act, the velocity of the
asked by Bob 
Physics
A duck has a mass of 2.8 kg. As the duck paddles, a force of 0.09 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.20 N in a direction of 47° south of east. When these forces begin to act, the velocity of the
asked by Bob