Questions Asked on
November 4, 2014

chemistry
We only can make ozone layer by adding 3 oxygen atoms or we cannot
asked by sai 
Calculus
Let f(x) = 2x^{3}+9. Find the open intervals on which f is increasing (decreasing). Then determine the xcoordinates of all relative maxima (minima). 1. f is increasing on the intervals: 2. f is decreasing on the intervals: 3. The relative maxima of f
asked by Daniel 
English
A nurse attended (a)...... her work place in time.(b)....... all her sincerity she was attending (c)....... the patient but she knew that her effort (d)........ keeping the patient alive might end (e)........ smoke.The doctors of board were shocked
asked by Rifa 
Science
How many grams of H2SO4 are in 125 mL of a 3.00 M solution of H2SO4?
asked by Eli 
mathematics
8y+4z=7 6y8z=41
asked by sarah jega 
Physics
what are vector quantities?
asked by Wendy 
Science
what is the concentration (M) of a MgCl2 solution prepared by dissolving 7.2 g of MgCl2 in sufficient water to give 362 mL of solution?
asked by Eli 
soc120
Which of the following is a claim that utilitarian might use to argue that prayer should not be allowed in school? (Points : 1)
asked by Tiffany 
Science
How many grams of CH3SH must be added to water to prepare 410mL of a solution that is 2.5 M CH3SH?
asked by Eli 
English
Change the sentences as directed in brackets: 1.Proper emphasis should be given on their study.(active voice) 2.The fox was very thirsty and was looking for water.(exclamatory sentence) 3.It could not find any source of water.(negative sentence) 4.It
asked by Rifa 
organic chemistry laboratory
hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you. 1. Why is it important to have clean test tubes before running a test? Before which tests should acetone not be used to clean the test
asked by Niah 
English
A nurse attended (a)...... her work place in time.(b)....... all her sincerity she was attending (c)....... the patient but she knew that her effort (d)........ keeping the patient alive might end (e)........ smoke.The doctors of board were shocked
asked by Rifa 
science
Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water.
asked by chris 
English
1. You will soon be friends with him. 2. You will soon make friends with him.  Are both grammatical? Is there any difference between them?
asked by rfvv 
English
1. Some cells change chemical energy into electric energy. 2. Some cells change chemical energy into electrical energy.  Do we have to use electric or electrical?
asked by rfvv 
Calculus
1. On what interval is the function f(x)=x^34x^2+5x concave upward? 2. For what values of x dies the graph of f(x)=2x^33x^26x+87 have a horizontal tangent? Is there no solution because the equation can't be factored? 3. At what point on the curve
asked by Anonymous 
algebra
Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original
asked by nimal 
chemistry
The pH difference across the membrane of a glass electrode is 2.49. How much voltage is generated by the pH gradient at: 25C? 37C?
asked by anyonymous 
Calculus
Given f(2)=5, f'(2)=1 find the value of d/dx[1/sqrt(f(2x))] when x=1
asked by Anonymous 
geometry
a rectangular piece of land measures 0.7 km by 0.5km each side is to be fenced with 4rows of wires.What is the length of wire needed?
asked by Anonymous 
Math
1. If one wishes to accumulate a 30,000fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate 50,000 in 15 years 3. Suppose that a
asked by Brianne 
Algebra HELP!
On a ruler that measures both metric and English units, we see that 1 m = 39.37 in. This implies that 2 m = 78.74 in. Use this information to write an equation to convert x inches to y meters.
asked by KG 
riga technical university
At what concentration of silver electrolyte the potential of the silver elevtrode will be greater than 0.1V of the silver electrode standard potential?
asked by brian 
physics
a50g ball is hit to roll by a force of 100N.it rolls over 20m.what was its initial speed
asked by Anonymous 
English
1. Everyone wants to be in good health. 2. Everyone wants to be very healthy.  Does #1 mean #2? What other expressions can we use instead of Sentence 1?
asked by rfvv 
algebra
Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original
asked by nimal 
English
happy123 at hmail dot com  How do you read this? happy one two three at h mail dot com (is this right?)
asked by rfvv 
English
But they are not the only helper animals. There are also guide horses.  In the second sentence, what is the meaning of 'guide'?
asked by rfvv 
Social Science
Essay on "The Arabs made Islam one of the most powerful force in Asia". Please help ASAP.
asked by Goku 
computer literacy
____________ is an application program included with Windows that allows the contents of the computer, the hierarchy of folders on the computer, and the files and folders in each folder to be viewed.
asked by tlotlo 
physics
Calculate the PRP, PRF, PD, DF, SPL, wavelength, period, and Axial Resolution if a 2 cycle pulse emitted from a 10 MHz transducer if the echo time received was 0.26 ms in soft tissue.
asked by Elizabeth 
Algebra please help answer
Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint to create green paint. Gina mixes 4 pints of yellow paint with 3 pints of blue paint. Did Gina use the same ratio of yellow paint to blue paint instructed by her teacher? Explain.
asked by Liz 
Algebra please help
A grocery store sells snacks by weight. A six ounce bag of mixed nuts costs $3.60. Predict the cost of a two ounce bag. Please help answer
asked by Liz 
Algebra 1 please help
The Martin family's truck gets an average of 25 miles per gallon. Predict how many miles they can use driving using 7 gallons of gas.
asked by Step hie 
Algebra 1 please help answer
A store has apples on sale for$3.00 for 2 pounds. How many pounds of apples can you buy for $9? If an apple is approximately 5 ounces, how many apples can you buy for $9? Explain both questions. Thanks
asked by Iana 
English
I have to make one sentence using catch, caught and had caught.... Is this correct Dad caught the perch, and he will try to catch a walleye like James had caught.
asked by Sweet Pea 
math
Nitya and satya have some marbles with them. Nitya says to Satya, "If you give one marble to me, we will have equal number of marbles." Satya says to Nitya," If you give me one marble, I will have twice the number of marbles you have". How many marbles
asked by nimal 
maths
one card is taken from the bag write down all the possible outcomrs of the event
asked by elizabeth 
Math Help
The New York Times study of homes reported average house size in 2001 to be 2,428 square feet, compared with an average of 2,150 square feet in 1987. Suppose a study of homes over the years recorded the year from 1987 to the present, as well as the size of
asked by Lori 
math
the shadow of a pole measured from the foot of the pole is 2.8 m long if the distance form the tip of the shadow from the tip of the pole is 10.5 m then find the length of the pole.
asked by Zahoor 
Algebra
Given the functions f(x)=x+5/3 and g(x)=1/f^1(x)+1, find the value of g(3). The first step would first be to find the inverse of x+1, the denominator of the fraction. I think the inverse would be 1x. And now we have 1/1x so we can just plu in 3. Right?
asked by Trish Goal 
algebra
In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar?
asked by joe 
Physics
"Being an athlete takes more brains than brawn. It takes time and effort. It takes endurance and commitment. It takes an athlete who can stay in the air for 2.5 seconds while shooting a goal; an athlete who knows which laws of physics keep him there."
asked by Celine 
physics
A 1.2 kg tether ball is hit so that it circles the pole with an angular speed of 3 radians/s. The length of the tether is 2m. What is the angle measured from the tether to the vertical pole?
asked by Hassan 
Physics
An aircraft moving horizontally at a speed of 80m/s and at a height of 500m releases a bomb to destroy a tank moving away from it. If the bomb is released when the tank is at a horizontal distance of 600m from the aircraft, find the speed of the tank.
asked by Celine 
math
Your friend says that 14.5% is equivalent to the decimal 14.5. Explain why your friend is incorrect by comparing the fractional equivalents of 14.5% and 14.5.
asked by zagra 
Math
How do you find decreasing intervals of 6x^363x^2144x2? I found my increasing intervals from placing the derivatives i just can't seem to solve for the decrease
asked by Alessandra 
Algebr
The values of a function f(x) are given in the table below: x=1, f(x)=3 x=2, f(x)=13 x=3. f(x)=8 x=5,f(x)=1 x=8,f(x)=0 x=13, f(x)=5 If f^1 exists, what is f^1((f^1(5)+f^1(13))/ f^1(1))? I am not quite sure how to do this.
asked by Trish Goal 
Calculus please help me
f(x) = \frac{ x^3 }{ x^2  25 } defined on the interval [ 18, 18 ]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. The function f(x) has vertical asympototes at (? )and
asked by Anonymous 
Science
Susie decides to pull on a 1.5kg toy (horizontally) with a force of 25N. Friction acts against the toy with a force of 6n. What is the acceleration of the toy?
asked by Paula 
math
Liz,John and Kim had some amount of money.Liz gives half of her amount to John, who then gives half of what he now has to Kim. Kim gives half of what she has now to Liz, who, now has exactly what she started with. If the sum of John's initial amount and
asked by Suzanne 
physics
Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.33 mm and length 23.5 mm, and the temperature of the strip is reduced by 4.50 K. If the strip is 23.5 mm long, how far is the maximum deviation of the strip from the
asked by Anonymous 
calculus
A manufacturer of hospital supplies has a uniform annual demand for 80,000 boxes of bandages. It costs $10 to store one box of bandages for one year and $160 to set up the plant for prduction. Haw many times a year should the company produce boxes of
asked by Anonymous 
Statistical
A botany student counted 11 blades of grass in one square centimeter of lawn and measured the lawn as a rectangle 61 m by 31 m. She reported that there were 208,010,000 blades of grass in the lawn. The precision of her conclusion: the answer is A.
asked by Michael 
english 4
Instructions within procedural texts should be phrased as __
asked by Anonymous 
math
find three consecutive odd integers such that the sum of the first and the second is 201 less the square of the third
asked by Jax 
Science Question
Richard has to move a 45.5kg couch in order to vacuum behind it. He is able to push against it with a force of 85.3N. He does unfortunately have to work against friction, but thankfully the coefficient of friction is very small 0.082 since it is on pads
asked by Dave 
Math Gr 12
Use a calculator to determine angle x, rounded to the nearest degree. csc x = 1.25
asked by Vikki 
Math, Please Help! I don't understand!
I need help because I don't understand how to solve this equation. 37. x/a  1 = y/b for x So... does it mean solve for x? 39. V = 1/3 * pi * radius^2 * h for h So... does it mean solve for h? As you can see, I am really confused. Please help.
asked by Alexandra 
Organic Chemisty
How to identify the difference between major and minor products using Markovnikov' rule
asked by Deanne 
Mathematics
Sum of radii of two spherical ball is 22 cm and the diff of their volumes is 3050 2/3. Find radii. In this question if i r+R= 22 (eq 1)and Pi(r2R2)=3050 2/3 (eq 2) and subs value of r from eq 1 in eq 2; my answer wont match with textbook. What should i
asked by Esha 
algebra
Assuming that none of the solutions are undefined,simplify each of the following. 23. A^2mB^m+1/A^mB 24.(A^2B^3/c)^0
asked by Janet 
English
To be grammatically correct, should the following sentence end with an exclamation or question mark? How nice it is !/?
asked by Anonymous 
Math
Help, I need help on this.. For questions 35, use the recipe below. (I'll try and make it..)  IngredientsAmount  Orange Juice 4 3/4 cups Grape juice 6 1/2 cups  Cherry Juice 2 1/8 cups Club soda 1
asked by Lexi 
Math
Determine the exact radian measure for each angle. 40 degrees.
asked by Jessica 
Math
Suppose 360 nursing students took a certification test that is worth 140 points. The fivenumber summary for the scores is shown here. min. value = 68 Q1 = 110 median = 125 Q3 = 130 max. value = 138 About how many students had a score of 130 or less?
asked by Monkey55 
geometry
List the set of all even numbers between 2 and 10, inclusive.
asked by raina 
physics
An aluminum vessel with a volume capacity of 510 cm3 is filled with water to the brim at 20.0°C. The vessel and contents are heated heated to 49.9°C. During the heating process, will the water spill over the top (in this case the answer would be
asked by Orcun 
Chemistry
How many mL of 0.122 M Na2CO3 would be needed to precipitate all of the copper ions in 23.7 mL of 0.167 M CuSO4? How many grams of CuCO3 could be recovered?
asked by Shelby 
English
Both of the girls insisted that they try to reach the end of the trail by themselves. I know they and themselves are pronouns. I know both can be used as a pronoun, but I am thinking no here. Am I right?
asked by Anonymous 
find perimeter
find perimeter. assume all angles are right angles. 4ft.,6ft, 4ft., 4ft, 9ft., 9ft.,10
asked by jan 
Physics
Calculate the ideal gas constant using the moles of air, temperature of air and slope of the air vs. 1/Pressure graph. Moles of air = 4.89*10^4 Temperature of air = 23C Slope = 2317
asked by CNix 
Physics
A 8.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 12.1 N. Find the speed of the block after it has moved 3.3 m. Answer in units of m/s
asked by Mckenna 
algebra
Write the equation of the line that is parallel to the given line and passed through the given point. Y=3x8; (0,2)
asked by Erica 
chemistry
In a titration, NaOH was added to a burette. The initial reading was 1.2 ml. At the end of the titration, the final reading was 24.8 ml. What was the volume of NaOH that was added?
asked by zakk 
physics
in passing theough a wooden block 8cm thick the velocity of a beullet reduces from 700m/s to 300 m/s if the mass of the bullet is 10g find the average resitance to penetrate ?
asked by zak 
Calculus
Find the point on the line 6 x + 4 y  1 =0 which is closest to the point ( 0, 1 ).
asked by Alessandra 
Calculus
A rectangle is inscribed with its base on the xaxis and its upper corners on the parabola y= 6x^2. What are the dimensions of such a rectangle with the greatest possible area?
asked by Alessandra 
Physics
What is the momentum (in kg m/s) of a 131 kg football player running at a top speed of 9.9 m/s? What is the momentum of a 9.32 g rifle bullet traveling at 618 m/s
asked by Laura 
Physics
A 0.145 kg baseball with an initial speed of 27 m/s rebounds with a speed of 32 m/s after being struck with a bat. If the duration of contact between ball and bat was 1.5 ms, what was the magnitude of the average force between ball and bat?
asked by Alex 
Algebra
Write an equation of the line that is parallel t the given line and passes through the given point. 1. y=3x8;(0,2) 2. y=x; (0,6)
asked by ER 
Chemistry
How do we use 2 indicators to confirm the pH of a solution?
asked by John 
Physics
A ball of mass 0.60 kg is fired with velocity 100 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to
asked by Alex 
English
Do not take too many chances when you drive at night. I know too is an adverb modifying many an adjective I know when is an adverb. Does it modify drive?
asked by Anonymous 
chem
How many grams of the adipic acid (C6H10O4) could form from the reaction of 15.00 g of cyclohexane (C6H12) with the 25.00 g of oxygen? Will the formula be... 2O2 + C6H12 > C6H10O4
asked by michelle 
English
Another I am not quite sure of. Never swim alone at night. I know never is an adverb modifying swim. I think alone is an adverb also. Would it modify swim too?
asked by Anonymous 
Math
Explain why (2,3) would be the vertex of the function y=3(x2)^23? Please and thank you!
asked by Alex 
chemistry
A buffer with a pH of 3.93 contains 0.17 M of sodium benzoate and 0.32 M of benzoic acid. What is the concentration of [H ] in the solution after the addition of 0.054 mol of HCl to a final volume of 1.5 L?
asked by Kira 
english 10
Prompt A: compare and contrast the topics and themes of writers from the america and european writers. Promt B: Think about all the selections you've read thus far by european writers. examine one element that the selection have in common, not including
asked by Anonymous 
statistics
I this binomial? or No? A gumball machine contains 25 gumballs  9 red, 6 blue, 7 green and 3 yellow. You buy five gumballs from the machine. X = number of green gumballs you get
asked by c 
Physics
A 1100 kg car collides with a 1500 kg car that was initially at rest at the origin of an xy coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at
asked by Alex 
Physics
A solid sphere of mass 2.07kg rolls up an incline with an inclination angle of 24.40°. At the bottom of the incline, the center of mass of the sphere has a translational speed of 2.80m/s. a) What is in J, the linear kinetic energy of the sphere at the
asked by Serena 
English
Seeing snow on the street in the middle of April was odd. on the streetPrepositional phrase in the middle of April a prepositional phrase or is the latter 2 prepositional phrases?
asked by Anonymous 
math
irv has a bike store. he has 32 bikes and also some tricycles, tandem bikes and unicycles. the unicycles and tandem bikes must be the same. there are 57 helmets and 115 wheels. name the bikes.
asked by shoshona 
stats
A physical fitness association is including the mile run in its secondaryschool fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 50 seconds.
asked by elenore 
physics
Two masses are connected by a light string passing over a frictionless pulley as shown on Figure. The M2= 6.1 kg mass is released from rest at height h = 2.8 m . We are given that M1=2.7 kg and I, the moment of inertia of the pulley is I = 0.198 kg m2 and
asked by Serena 
physics
The average car today has a mass of 1100 kg, and when accelerating from rest, covers 0.25 miles in 15 seconds. Each rim and tire together has a diameter of 46 cm and a mass of 9.1kg. If we agree the rim and tire have the shape of a solid disk that rotates
asked by help please 
Statistics
Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.86 litres and standard deviation 0.29 litres. (a) Can you calculate the probability that the mean daily water
asked by Mel 
Statistics
Service times for customers at a post office follow some rightskewed distribution with mean 2.91 minutes and standard deviation 1.74 minutes. (a) Can you calculate the probability that the average service time for the next two customers is less than 2.64
asked by Mel 
physics
Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.23 mm and length 22.3 mm, and the temperature of the strip is reduced by 6.30 K. Determine the radius of curvature of the cooled strip (the radius of curvature of the
asked by Alihan 
Algebra
Let f(x)=px+q, where p and q are real numbers. Find p+q if f(f(f(x)))=8x+21. Thank you. I got this p^3 +p^2q + pq + q = 29 Would you try to solve that? if yes, then how?
asked by Trish Goal 
Algebra
The function f(x,y) accepts an ordered pair as input and gives another ordered pair as output. It is defined according to the following rules: If x>4, f(x,y)=(x4,y). If x4, f(x,y)=(x,y4). Otherwise, f(x,y)=(x+5,y+6). A robot starts by moving to the point
asked by Trish Goal 
physics
A block of mass m = 1.02 kg is suspended above the ground at a height h = 14.4 m by a spool with two arms. The spoolwith arms arrangement is a combination of a solid uniform cylinder of mass M = 3.43 kg and radius R = 0.440 m, and two rods, each of
asked by Lauren 
Physical Education 8A
Will someone please check my answers? I starred my answers. 1. A person who does not recognize the signs of mental illness may not know he needs help. A. True* B. False 2. Which of the following is not a sign of psychotherapy? A. insight B. cognitive* C.
asked by Please Check Answers 
Math, Please Help! I don't understand!
Hi guys, please help me!1 I am having a tough time understanding this equation. Best answer goes to the person who shows there work. So... here is the equation... At the half time show, a marching band marched in formation. The lead drummer started at the
asked by Bianca 
Exam week 4
The relativist would agree with which statement about stem cell research?
asked by Nina 
math
Rosie had a necklace 2/3 beads were red, 14/21 beads wet blue how many are white is the and 3/21
asked by Anonymous 
Physics linear acceleration
A wagon, starting from rest has a linear acceleration in the positive x direction of 0.3 m/s2. For the next 19 seconds, the wheels roll without slipping. The radius of each wheel is 37.4 cm. After this time, how many radians has each wheel rotated through?
asked by Christopher Singh 
physics
A onepiece cylinder is shaped as in the Figure, with a core section protruding from the larger drum. The cylinder is free to rotate around the central axis shown in the drawing. A rope wrapped around the drum, of radius 2.70 m, exerts a force F1 to the
asked by Misaki 
Math
Twelve boxes of pencils cost $16. Write an equation that could be used to find the cost per box.
asked by Amy 
math
Explain how you can be sure that all rates you have written on a double number line are correct.
asked by anonymus 
working with parents and families
The responsibility for a parent to become involved in a center's activities A. lies primarily with the parent. B. can't be assigned to either the parent or the caregiver. C. lies primarily with the caregiver. D. is shared by the parent and the child.
asked by Amanda 
English
1. Our lives would be different without energy. 2. Our lives would be different if we didn't have energy. 3. Our lives would be different if there were no energy.  Does #1 mean #2 and #3? Are they the same in meaning and
asked by rfvv 
Chemistry
Information: Original temp of HCl: 23.3C of NaOH: 23.8C Final temp of the mixture: 36.7C I am to find qH2O (assume 50 mL of solution and use average density of 1.02 g/mL) but I'm a bit lost. I also need to find /\H and /\H per mole of H+a and OH ions
asked by Aishya 
physics
A particle undergoes three successive displacement in a plane as follows 4m southwest, 5m east, 6m in a direction 60 degree north of east (a) draw an apropraite vector diagram to represcent the displacement (b) detarmine the displacement that would be
asked by David 
Math
There are nine oak trees in a park. The oak trees make up 45% of all the trees in the park. How many trees are in the park?
asked by Amy 
RIGHT TRIANGLE TRIG
a kite is being flown 150 yards of string. the kite has an angle of elevation with the ground 65 degrees. how high above the ground is the kite. I DON'T KNOW HOW TO SET UP THE PROBLEM
asked by Albert 
MGMT
How might a manager use leading by example to help develop ethical behavior in his or her unit?
asked by Anonymous 
math
Sandy measures the length of a hockey stick. she says it it 4 units long. what unit did she use? A. cubes B. inches C. feet D. yards
asked by laura 
Math
There are 20 students in Mark's homeroom class. Ten percent of the students in Mark's home room class are in art class. How many students are in art class?
asked by Amy 
Algebra 2
A path of uniform width surrounds a rectangular garden that is 5m wide and 12m long. The area of the path is 168m^2. Find the width of the path.
asked by Taylor 
data analysis w/spreadsh w/lab
Please explain what the outcome of "" means
asked by linda 
English
I think I am brain tired, LOL! In the following sentence. The boy's baseball glove needed more padding. I know The boy's baseball are all adjectives. Do they all modify glove?
asked by Karen 
chem
Fe + O2>Fe2O3 How many grams of iron are required to convert 80 mL of oxygen at STP?
asked by jhon 
chem
Calculate the total pressure in the flask after all of the oxygen has been removed from the air in the flask. Assume that the temperature is 25¡ÆC, the initial barometric pressure is 760 torr and that air is 21% oxygen by volume.
asked by james 
Chemistry pretty urgent!!!!!!!
Chemical bonding question! The partial Lewis structure that follows (Figure 1) is for a hydrocarbon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared electron pairs in the molecule. The
asked by GDogg 
physics
Find the height of a cliff if the 87.6 kg cliff diver hits the water at 15.5 m/s.
asked by Natalie 
working with parents and families
The caregiver uses a _______ for anticipating and dealing with the concerns of parents when they've enrolled or are enrolling a child in the caregiver's program. A. parent conference B. parent handbook C. parent discussion group D. newsletter The
asked by Amanda 
working with parents and families
The tone of the parentcaregiver relationship is set by the A. home visit. B. initial facility visit. C. brief chats at arrival and departure times each day. D. child's first day. C is the wrong answer I think the answer is B
asked by Amanda 
physicsdistance
Here's a stationary bike. If you pedal such that the front wheel rotates at 6.9 rad/s, and that wheel's radius is half a meter, how far would you have gone in 35 minutes, if the bike where a nonstationary bike? (Assume a constant speed of rotation) I am
asked by Chris 
Urgent Science Question!
A 921kg sports car is moving rightward with a speed of 29.0m/s. The driver suddenly slams on the brakes, causing a 8347N resistive net force and the car skids to a stop. Determine the time it takes to stop the car.
asked by Tina 
Physics
A ball of mass 0.60 kg is fired with velocity 100 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to
asked by Alex 
physics
A 1100 kg car collides with a 1500 kg car that was initially at rest at the origin of an xy coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at
asked by Alex 
Science (How Do I Do This?)
A car skids to a stop at a traffic light, leaving behind a 8.25m skid mark as it comes to a rest. Assuming that the car is travelling at 14.5m/s and only the friction from the tires on the roadway stop the vehicle. Find the coefficient of friction
asked by Fiona 
math
integral of y^3/(y^4 +1) dy I don't get how you get (1/4) ln(y^4 +1) out of this. I thought you would do the quotient rule. but is that the same for integrals as it is the derivatice? help!
asked by sam 
Chemistry
A 1.516 M solution is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
asked by Anonymous 
MATH
I NEED HELP WITH A QUESTION MARK COUNTS HE HAS SAVED IN HIS JAR. WHAT IS THE TOTAL AMOUNT OF HIS SAVING
asked by MARKIYAHUNTER 
math
on a sunny day a 36 inch yard stick casts a 21 inch shadow how tall is the building whose shadow is 168 feet
asked by matthew barroso 
chemistry
How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?
asked by Bob 
math
(4/5)6=14
asked by alex 
algebra 2
1. Part A.) For the f(x) = 5x + 8 and g(x) = x – 3. Calculate (f o g)(x) Part B.) f(x) = 3x + 5 and g(x) = x². Calculate (f o g)(3)
asked by katelynne 
English
Does anyone know an advertisement that uses Name Calling
asked by M 
Science Physics
How many Btu of heat must be added to 1200 lb of copper to raise its temperature from 100°F to 450°F specific heat for copper is 0.092
asked by Justin 
Physics
A wheel is rotating freely with an angular speed of 4840rad/s on a shaft whose moment of inertia is negligible. A second wheel, initially at rest and with 8 times the rotational inertia of the first is suddenly coupled to the same shaft. a) What is the
asked by Misaki 
English
If he had not worked hard, he would never have become a success. Looking for dependent clauses To me these both song dependent that they both need the other. Am I wrong?
asked by Anonymous 
English
Does this count as an Emotional Words advertisement? Nike The Ultimate Quick Fix The Shoes Word If you do
asked by M 
Math!!
3.4t+19.36=10.22
asked by Christine 
Calculus
Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.) 1/3x^3 + 1/2x^2 + 8 = 0, x1 = −3 I got 3.4808, but it's wrong. Help?
asked by Benny 
math
If there are 15 minivans out of 42 cars how many minivans are there in 150 cars
asked by Anonymous 
Science
Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer Relationship 1 : This bee is feeding on the nectar from this flower while at the same time collecting polent o transfer to different flower. What
asked by M 
Science
Zoysia is a type of grass. It uses lighjt energy to make food. Grasshoppers feed upon zoysia for energy. What type of relationshipe xists between zoysia and grasshoppers? Is it Mutualism? Mutualism is when both organisms benefit
asked by M 
Science
Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer This tomato hornworm is covered with cocoons depositied by wasps. The alrvae of the waspa will feed on the worm and eventually cause its death.
asked by M 
Science
Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer The egret is a bird that follows herds of cattle in order to catch and eats infects that are stirred up as the cattle move around. What type of
asked by M 
Chemistry
What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 105 for CH3CO2H. 4. How is this solved?
asked by KJ 
(math) step function
Draw a graph for the function f(x)=2*⌈x⌉ With the domain 2
asked by Bagel 
Mathematics
Functions f.and.g are.define.by F : x 9+x G : x 3x2
asked by Orlando 
Math
Brett and Jim sign up for Memorial Day race in their town. There are two different events, a 5 kilometers and a 10 kilometers. Brett signed for 5 kilometers and Jim signed for 10 kilometers. Use thermometers to indicate when both Brett and Jim have
asked by Anonymous 
stats
A research firm conducted a survey to determine the mean amount people spend at a popular coffee shop during a week. They found the amounts spent per week followed a normal distribution, with a population standard deviation of $4. A sample of 49 customers
asked by Anonymous 
Math
300 kilometers, 180 kilometers and 200 kilometers represents the trips that ms axler took in her job this week. How many kilometers had ms axler traveled when she was at the one third point in each trip? Explain your reasoning
asked by Anonymous 
Chemistry
2 moles of ideal gas at 300K, initial volume 25 L, are compressed under an external pressure at 3600 torr. Assuming the temp and the internal energy of gas do not change, what is the entropy change of the gas? (Assume the heat flow is reversible)
asked by Jordan 
English
I go. Is this a dependent clause
asked by Jarad 
geometry
If you are standing 22 feet straight from a tree and you look at the top of the tree with a distance of 33 feet how tall would the tree be?
asked by Anonymous 
Chemistry
How many resonance structures do these following acids have? H2CO3carbonic acid H3PO4phosphoric acid H2SO4sulfuric acid HNO3nitric acid CH3COOH acetic acid CH2ClCOOH chloroacetic acid CHCl2COOH dichloroacetic acid CCl3COOH trichloroacetic acid
asked by Joseph 
chemistry
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (NON single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at
asked by john 
Maths
A salesperson earns a straight commission of 2.5% on the gross value of products sold. For what gross value of products would the salesperson earn £200?
asked by Saikat 
chemistry
Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this resonance structures have?
asked by john 
Chem31
Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water. Be sure to show all steps using the systematic
asked by Anonymous 
English
I think I am getting it A few remained. Ok few would be subject and remained the verb. Am I right?
asked by Jarad 
physics
A team of sled rides has a mass of 180 kg. If they have 8,000 J of kinetic energy at the bottom of the hill, how tall was the hill they just tackled?
asked by Natalie 
statistics
The survival rate during a risky operation for patients with no other hope of survival is 81%. What is the probability that exactly four of the next five patients survive this operation?
asked by kalia 
physics
Bobo jumps out of a plane 2,000 m in the air. If Bobo has a mass of 100 kg, how much kinetic energy will he have after falling for 200 m? Assume no air resistance.
asked by Natalie 
statistics
(1) The director of a health club conducted a survey and found that 23% of members used only the pool for workouts. Based on this information, what is the probability that for a random sample of 10 members, 4 used only the pool for workouts? Round your
asked by kalia 
physics
How fast will a roller coaster, with a mass of 1200 kg, be moving at the bottom of an 18 meter tall hill?
asked by Natalie 
physics
Tony Hawk skates down a ramp. If he is moving at 5.4 m/s at the bottom of the ramp and has a mass of 82 kg, how tall was the ramp?
asked by Natalie 
English
All of the following are true special predicates except. A. A compound predicate is one that is passive. B. A predicate can have direct or indirect object. C.When a predicate is passive ,the subject is being acted upon rather an acting. D. A predicate may
asked by Michelle 
statistics
A couple considering a mortgage of $100,000 have a choice of loans. One loan is an 8% loan for 20 years, and the other loan is at 8% for 30 years. Find the amount of interest that the couple can save by choosing the 20year loan.
asked by Rick 
math
1.5+9 2.9(2) 3.40/20
asked by minecraft 
physics
Rocketpowered sleds are been used to test the responses of humans to acceleration. Start ing from rest, one sled can reach a speed of 510 m/s in 2.37 s and can be brought to a stop again in 3.15 s. Find the acceleration of the sled while ac celerating.
asked by help 
Physics
A vector is directed at an angle tangent above the +x axis, pointing into the first quadrant. If the x component of this vector is 10 m, the magnitude of the vector is?
asked by John 
Math
1/3 multiply 300
asked by Anonymous 
calc 3
1. Evaluate the given integral by making an appropriate change of variables, where R is the region in the first quadrant bounded by the ellipse 36x^2+25y^2=1. L= double integral R (4sin(144x^2+100y^2) dA. 2. Use the given transformation to evaluate the
asked by lala 
Social Studies
What are some problems that may come when the National Dream Act is passed.
asked by Lilly 
English
If it rains we shall postpone the picnic. If it rains is a dependent clause we shall postpone the picnic is independent. I say to put comma between rains and we, Correct?
asked by Anonymous 
5th grade math
a company shows profits of $78020 the company wants to divide one quarter of the profits evenly among 47 emplpoyees how much money will each employee receive? how do I divide $78020 by one quarter?
asked by Anonymous 
English
A prepositional phrases include A. A preposition as about or above. B.an object of the preposition that is a noun or pronoun. C. any modifiers of the object of the preposition. d. I am think A
asked by Michelle 
English
All of the following are true special predicates except. A. A compound predicate is one that is passive. B. A predicate can have direct or indirect object. C.When a predicate is passive ,the subject is being acted upon rather an acting. D. A predicate may
asked by Michelle 
Precalculus
e^2x1=e^4 using one to one property?
asked by bob23 
Algebra
Find the real zeros of f and the xintercepts of the graph of f. (Enter your answers as a commaseparated list. Separate multiple ordered pairs with commas.) f(x) = −x2 + 6x + 16
asked by Patty 
sixth grade math
Wendell is making punch for a party. The recipe he using says 4 cups pineapple juice, 8 cups orange juice, and 12 cups lemon lime juice to make 18 servings. A. If he makes 108 cups of punch, how many cups of each ingredient will he use? 27 cups pineapple
asked by Stephon 
Math
Carpet costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor?
asked by Salae Martin 
Algebra
A veterinarian uses 300 feet of chainlink fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, as shown in the figure. (a) Write the width w as a
asked by Kimberly 
English
Which of the following is the best version of a thesis statement about charter schools? a. A charter school is a tax supported established by a charter between a school board and outside group of teachers or parents. b.A charter school operates without
asked by Michelle 
chemistry
0.688 g of antacid was treated with 50.00 mL of 0.100 M HCl. The excess acid required 4.21 mL of 1.200 M NaOH for back titration. What is the neutralizing power of this antacid expressed as mmol(millimoles) of HCl per gram of antacid?
asked by boomer 
calculus
the position of a particle moving along a coordinate line is s=√(1+4t) , with s in metres and t in seconds. Find the particle's velocity and acceleration at t=6 sec
asked by zizi 
Technology for Biobased Products
QA.A bioPDO production process will also produce microbial biomass. A huge surplus biomass of roughly 10% of the PDO mass should be expected. A good use of this microbial biomass could be food of feed. Which organism properties disqualify their use in
asked by Ann 
algebra
if there are 96 calories in a 3/4 cup serving. How many calories are in 5 cups? How do you do the math?
asked by dara 
physics
You are loading a refrigerator weighing 2250 N onto a truck, using a wheeled cart. The refrigerator is raised 1.00 m to the truck bed when it is rolled up a ramp. Calculate the minimum work that must be done by the force you apply and the magnitude of the
asked by Corey 
Bio 11
what are 5 examples of the phylum porifera?
asked by Priya 
Math
What is the multiplier of 3/4 and 6/8
asked by Anonymous 
Physics
gazelle traveling 200 m/s is launched at a 40 degree angle with respect to the horizontal.
asked by tnia 
adolescent psycoloy
I am in a group of five and need help with my powerpoint project , never did one before question is dividing the self into different aspect and addressing how an independent collectivistic culture impacts those aspect of the self
asked by antoinette 
Math
Maggie makes some fruit punch. She mixes 2 1/2 quarts of grape juice with 1 1/2 quarts of orange juice. One quart of grape juice costs $1 less than one quart of orange juice. She finds that the total cost of making the fruit punch is $12.50. Calculate the
asked by Andrew 
physics
a standard coordinate system (+x to the right, +y upwards and +z out of the page) a particle with a positive charge is travelling in the +x direction when it encounters a magnetic field in the −y direction. In which direction will the magnetic force act
asked by alty 
Chemistry
I am a parent trying to help with my childs homework. This is the question that has us stuck. Can you assist us? Boron trioxide B203 , reacts with waterto produce boric acid, B(OH)3. B2O3(s) + 3H2o (l) > 2B(OH)3(s) Ricardo adds 27.2 g of B2O3 to an excess
asked by Gina 
math
threetimes as children as adults attended a concert on Saturday. an adult's ticket coast $7 a child's $3. the theater collected a total of $6000. how many peolple bought tickets?
asked by wojtek 
math
How to find the area of a regular hexagon with a perimeter of 78 inches and a perpendicular distance of 11 inches from side to center
asked by mary 
English
The hairy man represents what in the call of the wild? My answer is fear
asked by Steve 
English
Does a comma go after an independent clause with a subordinate conjunction followed by another independent clause? Example The classes will be held unless the schedule has been changed. I know one is needed if a dependent clause is first.
asked by Anonymous 
physics
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.144kg baseball crashing through the pane of a secondfloor window in a nearby building. The ball strikes the glass at 14.9 m / s, shatters the glass as it passes
asked by nic 
English
In the Call of the Wild, Buck did not fight back when Hal was beating, him because? My answer is that he did not have the strengh
asked by Steve 
5th grade math
John picked 30 bags of apples on monday and sold them at his fruit stand for $3.45 each. The following week he picked and sold 6 more. How much money did John earn the 1 st week? 3.45x30=103.50 How much money did he earn in the second week? 3.45x36=124.20
asked by Meli 
Math
8x1/4=
asked by Anonymous 
math
what is 5t+12ft3f=
asked by dillon 
Calculus
1. On what interval is the function f(x)=x^34x^2+5x concave upward? My answer: (4/3, infinity) ?????
asked by Anonymous 
chem 2
methylamine is a weak base. calculate the pH of a .025 M solution of methylamine.
asked by timmy 
Calculus
2. For what values of x dies the graph of f(x)=2x^33x^26x+87 have a horizontal tangent? My answer: (1.6,77.9) (0.62, 89.1)
asked by Anonymous 
Math
Simplify the expressions. 1. 2x  4 + 3x 2. 4y  1  3y + 2 3. x + 2(x  4
asked by Anonymous Person 
Calculus
Show that the curve y=6x^3+5x3 has no tangent line with slope 4. The answer key says that m=y'=18x^2+5, but x^2 is greater than or equal to 0 for all x, so m is greater than or equal to 5 for all x. I don't understand that x^2 is greater than or equal to
asked by Anonymous 
Math
What is the divisor of 12/18 and 4/6
asked by Anonymous 
Chem 130
What is the percentage of water in copper (II) sulfate pentahydrate?
asked by michelle 
Chemistry
If 0.85 mol of a diatomic molecule has a mass of 23.8g, identify the molecule? We tried to multiply .85 mol and 23.8g and then multiply by 2 to get an answer, but I believe I might be heading in the wrong direction.
asked by Leo 
English
They insist that Bacon really wrote the play. I am saying this is a complete sentence with no dependent clause,. Am I right?
asked by Anonymous 
MACBETH HELP PLZZ!
what motivated the Gunpowder Plot of 1605
asked by John 
ENGLISH 10 HELP!!!
what motivated Shakespeare to write The Tragedy of Macbeth?
asked by John 
Calculus
Draw a diagram to show that there are two tangent lines to the parabola y=x^2 that pass through the point (0,4). Find the coordinates of the points where these tangent lines intersect the parabola. So far I have taken the derivative and got y'=2x.. Using
asked by Anonymous 
Chemistry
A piece of copper of mass 21.3 g at 106.0 °C is placed in a vessel of negligible heat capacity but containing 53.0 g of water at 19.3 °C. Calculate the final temperature of the water. I keep getting 22 celsius and I'm not sure where I'm going wrong. I
asked by Jessica 
Chemistry
A sample of light has a wavelength of 2.61 x 10^12 m. What is it's frequency? A popular radio station broadcasts with a frequency of 94.7 mHz. What is the wave length of the broadcast? (1MHz = 1 x10^6 HZ) What is the wavelength of electromagnetic
asked by Sarah 
Chem 130
How many tons of zinc can be obtained from 976 tons of zinc ore that is 78.0% zinc carbonate?
asked by michelle 
english
I have to find the verb and predicate nouns and predicate adjectives. 1.) Their uniforms are a symbol of their authority. Verb=are PN=symbol
asked by Cory 
Physics
An 8.00g bullet is fired at 220m/s into a 250g wooden block that is initially at rest. The bullet remains in the block and after the collision the two slide up a 30° incline. a. Solve for the velocity of the bulletblock after the collision. (ans:
asked by Mollie 
algebra
The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240.
asked by Nate 
algebra
The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the
asked by Nate 
algera
The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the
asked by Nate 
algebra
The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =
asked by Nate 
algebra
A veterinarian uses 300 feet of chainlink fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w
asked by Nate 
Calculus Please Help!
Very confused with this question. Amy help would be appreciated. The ideal gas law states that P V = nRT where P is the pressure in atmospheres, V is the volume in litres, n is the number of moles, R = 0.082 L·atm/K·mol is the gas constant, and T is the
asked by Anonymous 
history
What cities are in between the European trade route? And what are the cities in between the African trade route?
asked by mi 
Physics
A 4.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 14 N. Find the speed of the block after it has
asked by Elizabeth 
geometry
given ab=ac be is the medan to ac cd is the median to ab conclusion ag is the perpendicular bisector of bc
asked by kiko 
PHYSICS
What magnitude is not possible when a vector of magnitude 3 is added to a vector of magnitude 4?
asked by Wendy 
physics
a motorcycle wants to jump a ditch 4m wide. he leaves one side on a ramp that slopes up at 30 above horizontal. he lands at the same elevation at which he took off. his front wheel leaves the ground 2m before the edge of the ditch and comes down 3 m past
asked by Michael 
TRIG WORD PROBLEMS
from 25 feet away from the base of a building, the angle of elevation from the ground to the top of a building is measured 38 degrees. how tall is the building. WHat i did was put 25 feet on the base of the triangle the angle measurement oppsite and the
asked by Albert