Questions Asked on
November 2, 2014

chem
A 0.167g sample of an unknown compound contains 0.00278 mol of the compound. Elemental analysis of the acid gives the following percentages by mass: 40.00% C; 6.71% H; 53.29% O. 1.)Determine the molecular formula of this acid. 2.)Determine the molar mass
asked by Rocky 
Chemistry
A generic solid, X, has a molar mass of 77.7 g/mol. In a constantpressure calorimeter, 31.2 g of X is dissolved in 289 g of water at 23.00 °C. The temperature of the resulting solution rises to 24.40 °C. Assume the solution has the same specific heat as
asked by Katherine 
MATHS
A boy spent 1/4 of his money on sweets and 3/8 on bus fares. What fraction of his money is left?
asked by Help 
Math
The pressure, P (in lbs/ft2), in a pipe varies over time. Three times an hour, the pressure oscillates from a low of 88 to a high of 254 and then back to a low of 88. The pressure at t=0 is 88. Find a possible cosine formula for P=f(t), where t is time in
asked by Leah 
Physics
As shown in the figure below, a bullet is fired at and passes a piece of target paper suspended by a massless string. The bullet has a mass of m, a speed v before the collision with the target, and a speed (0.466)v after passing through the target. The
asked by Ellen Q 
chemistry
The mole fraction of neon in the air is about .0000026. If the average molar mass of air is 28.96 g/mol, what is the concentration of neon in air in ppm? How do you set this up?
asked by Sarah 
Physics
Hi I see another student actually posted this question... but got no answer... is someone able to look at it? see below  a bullet is fired at and passes a piece of target paper suspended by a massless string. The bullet has a mass of m, a speed v before
asked by LoveBug 
Calculus I
Semelparous organisms breed only once during their lifetime. Examples of this type of reproduction strategy can be found with Pacific salmon and bamboo. The per capita rate of increase, r, can be thought of as a measure of reproductive fitness. The greater
asked by Ian 
physics
A car weighing 1.0 x 10^4N is parked on a 34 degree slope. The brakes fail and the car starts to slide down the hill. Assume no friction. Show your work, and determine a) the acceleration of the car, and b) after it has moved 28.0 m, how fast is it moving?
asked by Andy 
Math
Worldwide annual sales of all cellphones were approximately −10p + 1,600 million phones when the wholesale price was $p. At what wholesale price should cellphones have been sold to maximize annual revenue?
asked by Lisa 
Chemistry
A certain indicator, HA, has a Ka value of 6.3 × 108. The protonated form of the indicator is blue and the ionized form is red. What is the PKa of the indicator? What is the color of the indicator in a solution with pH=5?
asked by jjhjhhjhk 
chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)> C(g) 2A(g) + B(g)> 4C(g) A(s) + B(g)> 2C(g) 2A(g) + 2B(g)> 3C(g)
asked by Haley 
physics
find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.
asked by Anonymous 
Calculus
A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/second while its height is increasing at the rate of 5 inches/second. When the radius is 4 inches and the height is 6 inches, how fast is the a) volume changing
asked by Sara 
Physics
A bowling ball encounters a 0.760m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 7.83 m/s at the
asked by S 
chemistry
lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space vehicles. what volume of carbon dioxide can be absorbed by 1.00 kg of lithium oxide at 25 degrees C and 1.00atm? Li2O(aq) +CO2(g) >
asked by ! 
chemistry
The reaction between sodium hydroxide and hydrobromic acid is represented in the equation below: OH + H+ > H2O A 62.5 mL sample of 1.86 M NaOH at 22.5 deg Celsius was mixed with 62.5 mL sample of 1.86 M of HBr at 22.5 deg Celsius in a coffee cup
asked by lola 
Calculus
A rectangle is 2 feet by 15 inches. Its length is decreasing by 3 inches/minute and its width is increasing at 4 inches/minute. How fast is the a) perimeter changing b) area changing
asked by Anonymous 
Chemistry
If vinegar sample #1 requires 29.05 mL of NaOH solution to reach an endpoint, what volume should be required for samples #2 and #3?
asked by Gladys 
physics
The red box has a mass of 20.1 kg and the blue box has a mass of 14.5 kg and the force is 290 N. To the nearest tenth of a m/s2 what is the acceleration of the combination? The diagram looks like this: F > [Red Box][Blue Box] On a straight plane, not on
asked by Tiff 
chemistry
Aniline (MW93 g/mol) codistills with water 98.2 C. The vapor pressure of water at 98.2 C is 717 mmHg. You need to isolate 10 g of aniline. What is the minimum volume of water required to isolate 10 g of aniline in a steam distillation at 760 mmHg?
asked by Anna 
Chemistry
A sample of oxygen that occupies 1.00 x 10^6 mL at 575 mm Hg is subjected to a pressure of 1.20 atm. What will the final volume of the sample be if the temperature is held constant?
asked by Sara 
chemistry
Given the following reactions Fe2O3(s) + 3CO (s) → 2Fe (s) + 3CO2(g)ΔH =28.0 kJ 3Fe (s) + 4CO2(s) → 4CO (g) +Fe3O4(s) ΔH = +12.5 kJ the enthalpy of the reaction of Fe2O3 with CO 3Fe2O3(s) + CO (g) → CO2(g) + 2Fe3O4(s) is __________ kJ
asked by Anonymous 
chemistry
The value of ΔH° for the reaction below is  6535 kJ. __________ kJ of heat are released in the combustion of 16.0 g of C6H6(l)? 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O (l)
asked by Anonymous 
Calculs I
A bacterial population grows at a rate proportional to the population size at time t. Let y(t) be the population size at time t. By experiment it is determined that the population at t=15 min is 16000 and at t=45 min it is 22000. (a) What was the initial
asked by Lyca 
essay edit
Can someone look over this? I've been working on wordiness, sentence structure, and repetition. Tangled and its Hidden Critique of Rapunzel Peeking at the mere surface of the film Tangled (2010) directed by Nathan Greno and Brian Howard, most would presume
asked by christine 
chemistry
determine the percent yield when 5.00g benzene burns in oxygen gas to form 1.50g of carbon dioxide and water vapor.
asked by Anonymous 
Calculus
A rocket is fired vertically into the air at the rate of 6 miles/min. An observer on the ground is located 4 miles from the launching pad. When the rocket is 3 miles high, how fast is the angle of elevation between the rocket and the observer changing?
asked by Paula 
chemistry
At 23 oC the solubility of a gas sample is 0.05 g/L in water at 1.0 atm. What is the solubility when the pressure increases to 2.0 atm? I don't know what formula to use for this question.
asked by Sarah 
physics
A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the cylinder is 159 m. The moment of inertia of the station without people is 4.23 x 109 kg·m2. Suppose 299 people, with an average
asked by S 
Math
A deposit of $10,000 is made in a trust fund that pays 4.9% interest, compounded monthly. What is the balance of the trust fund after 15 years?
asked by Kalani 
pol 201
The Virginia Plan proposed all of the following except
asked by Anonymous 
chemistry
give the specific heat for aluminum is 0.900 J/g*c how much energy is required to raise 25.0 g of aluminum from 20.0 to 75.0
asked by sally 
math
Suppose P is the theoretical probability of an event occurring. Which of the following is the correct formula for calculating P?
asked by c goines 
Statistics
It takes the bus an average of 20 minutes to arrive at a certain bus stop. A student is waiting for the next bus to arrive. a) What is the probability the student waits more than 30 minutes? b) What is the probability the student waits exactly 15 minutes?
asked by Sarah 
Calculus
Wheat is poured through a chute at the rate of 10 ft^3/min and falls in a coneshaped pile whose bottom radius is always half its height. How fast is the height of the cone increasing when the pile is 8 feet high? Volume of a cone=1/3(pi)r^2h
asked by Vincent 
Physics
Two forces are applied to a car in an effort to accelerate it, as shown below. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 464 N, is applied at an angle β = 13° to the forward dashed
asked by akash 
algebra
At the end of their paddling trip, Natalie and Herb drive back in separate vehicles. Natalie has 8 gallons of gas left in the tank of her vintage 1969 Volkswagen Beetle, which gets 30 miles to the gallon. Herb has 12 gallons left in the tank of his 1998
asked by Nicole 
Calculus
Two lovers have a spat and swear they will never see each other again. The girl walks due south at 6 mph while the boy walks at 10 mph on a heading of North 60 degrees West. How fast is the distance between them changing 30 minutes later?
asked by Marie 
physics
a 1500kg car travelling east with a speed of 20m/s collides at an intesection with a 2500kg van travelling south at a speed of 15m/s.The vehicle undergoes a perfectly inelastic collision, and the wreckage slides 6m before coming to rest.Find the magnitude
asked by takunda 
Physics
A block M1 of mass 13.0 kg sits on top of a larger block M2 of mass 23.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.440. The kinetic friction coefficient between the lower block and the flat
asked by Sarah 
Calculus
An ant is walking along the curve x^2+xy+y^2=19. If the ant is moving to the right at the rate of 3 centimeters/second, how fast is the ant moving up or down when the ant reaches the point (2,3)? Specify direction.
asked by Anonymous 
math
If rectangular workroom with a perimeter of 26 feet. The length of workroom is 6 feet. What is the width?
asked by koy 
Need help by tonite Finance
3. Unbiased Expectations Theory Oneyear Treasury bills currently earn 5.50 percent. You expect that one year from now, oneyear Treasury bill rates will increase to 5.75 percent. If the unbiased expectations theory is correct, what should the current rate
asked by Anonymous 
Chemistry Reacting Masses Calculations
Hi the question asks me to calculate the mass of calcium carbonate that must be decomposed to produce 14kg of calcium oxide. I think I've gone wrong somewhere, do you write 14000g or 14kg etc, could you help? I did: Moles CaO=(Mass CaO/Mr CaO) =1400/56 =25
asked by Oli 
Solid Mensuration
Find the lengths of the sides of the cylcic quadrilateral if one diagonal coincides with a diameter of a circle whose area is 36pi cm squared. The other diagonal measures 8 cm meets the fist diagonal at right angles.
asked by Jayson 
PHYSICS
last homework question I cannot figure out.... H E L P :} a bullet is fired at and passes a piece of target paper suspended by a massless string. The bullet has a mass of m, a speed v before the collision with the target, and a speed (0.466)v after passing
asked by boyDoIneedHelp 
chemistry
find the temperature increase in C expected for 1.00 L of water when it absorbs all of the energy from the combustion of 1.00 g of acetylene, C2H2(g). (Every mole of acetylene releases 1300KJ of energy when combusted)
asked by Ade 
physics
A marble rolls off the edge of a table that is 0.82 m high. The marble is moving at a speed of 0.11 m/s at the moment that it leaves the edge of the table. How far from the table does the marble land?
asked by Brittney 
Calculus
A stone is thrown into a calm pond and circular ripples are formed at impact. If the radius expands at the rate of 0.5 feet/second, how fast is the circumference and the area of the ripples growing when the radius is 3 feet?
asked by Vincent 
English
Read the following passage and identify at least 3 elements of figurative language; explain how each element brings out the theme of the passage. "The Wrong Place" by Susan Michalski Lana woke up, curled in a corner of the seat at the back of the train.
asked by Megan 
Math (I've been on this problem for 3 hours)
If the supply and demand functions for a commodity are given by 2p  q + 10 = 0 and (p + q)(q + 10) = 3642 respectively, find the equilibrium price and quantity that give market equilibrium. (Round your answers to two decimal places.) Equilibrium price =
asked by Steve 
Algebra
Define #N by the formula #N=.5(N)+1. Calculate #(#(#50)). Thank you!
asked by Trish Goal 
English
Need help writing a birthday card with 4 types of sentences? declarative, interrogative imperative and exclamatory?
asked by Lisa 
PreCalc
An ant starts at the point (3,0) on a circle of radius 3 meters and walks counterclockwise a distance of 6 meters around the circle. Find the x and the y coordinates of the ants location. Round to the nearest hundredth.
asked by Sarah 
chemistry
calculate the volume of 0.0321M NaOH that will be required to neutralize 25.00 mL of a 0.0399M hydrochloric acid solution. M1v1=m2v2 since were trying to find out the volume I would change the equation to m2 times V2 divided by M1 0.0399 X 0.025/0.0321
asked by elizabeth 
worl geography
The governments of Norway, Sweden, the Netherlands, and the United Kingdom are all examples of __________. A. federations B. pure democracies C. federal republics D. constitutional monarchies
asked by Jamie 
English
Hi Miss Sue, Here is the final draft can you check it for me? Thank you Dear Grandmother Irene Happy Birthday to you on this special day! Shine like a star today on your Birthday. Have a wonderful time at your Celebration Party. Wishing you all the best on
asked by Lisa 
maths
the ages of two children are 11 and 8 years. in how many years time will the product of their ages be 208
asked by Godwin 
Math
1. The population,P, in thousands, of a country is P=10^8(1.5)^t/20 where t is measured in years. How long will it take for the population to increase 125 percent?(Hint: If the population increases by 100 percent, it doubles.) 2. How long would it take for
asked by Brianne 
math
A bottle of cordial contains 5litres ,of which 10% I'd pure fruit juice.hoe many liters of water must be added to dilute to 4% fruit juice.can anybody explain please,thanks
asked by julian 
chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)> C(g) 2A(g) + B(g)> 4C(g) A(s) + B(g)> 2C(g) 2A(g) + 2B(g)> 3C(g)
asked by Haley 
chemistry
Calculate the potential of the following two halfcells that are connected by a salt bridge: a galvanic cell consisting of a standard hydrogen electrode on the left and a platinum electrode immersed in a solution that is 3.50 3 1023 M in TiO21, 0.07000 M
asked by Sarah daniels 
Chemistry
Which of the following reactions have a positive ÄSrxn? Check all that apply. A(g) + B(g)> C(g) 2A(g) + B(g)> 4C(g) A(s) + B(g)> 2C(g) 2A(g) + 2B(g)> 3C(g)
asked by Haley 
chemistry
Nitrogen dioxide abstracts with water vapor to produce oxygen and ammonia gas. If 12.8 grams of nitrogen dioxide reacts with 5.00 liter of water vapor at 375 degrees celisus and 725 tore, how many grams of ammonia can be produced? Use an ice table.
asked by sally 
chemistry
If you dissolve 236.5 g of (NH4)3PO4 and 166.9 g of K3PO4 in enough water to make the volume of the solution 505.0 mL What is the molarity of ammonium ions and phosphate ions?
asked by Jade 
Algebra
The base of a triangle in terms of x is: 2^2+4x+2 and the height is x^2+3x4 Area=1/2(2x^2+4x+2) (x^2+3x4)= 6x^2+2 (x^2+3x4) Trying to find the area and not sure which direction to go
asked by Babydoll2007 
Math Please HELP
If the supply function for a commodity is given by the equation p = q2 + 12q + 700 and the demand function is given by the equation p = 1800  10q  q2, find the equilibrium quantity and equilibrium price. (Round your answers to two decimal places.)Thank
asked by Steve 
Math
Find the specified term of the expansion in each of the following: a.6th term of (3x + y)^9 b.Middle term of (3x+y^3)^8 c.The term in (x + 2y)^10 that involves x^7
asked by Brianne 
MATHS
how many twenties must be added to 3 tens to equal £2.10
asked by Help 
math
Karen collects 6/7 quart of rainwater. she uses half to clean her bicycle and uses the remaining to equally water 3 plants
asked by sarah 
Need help by tonite Finance
4. Liquidity Premium Hypothesis Suppose we observe the following rates: 1R1 = 8 percent, 1R2 = 10 percent, and E(2r1) = 8 percent. If the liquidity premium theory of the term structure of interest rates holds, what is the liquidity premium for year 2, L2?
asked by Anonymous 
physics
A block of mass m = 350 g is released from rest and slides down a frictionless track of height h = 58.9 cm. At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall. The spring
asked by Jamila 
Algebra 2
A player throws a ball up and toward a wall that is 17 feet high. The height h in feet of the ball after t seconds after it leaves the player's hand is modeled by h=16t^2+25t+6. If the ball makes it to where the wall is, will it go over the wall or hit
asked by none 
Need help by tonite Finance
15. Bond ratings and prices A corporate bond with an 8.5 percent coupon has 10 years left to maturity. It has had a credit rating of A and a yield to maturity of 10 percent. The firm has recently gotten into some trouble and the rating agency is
asked by Anonymous 
Chemistry
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom. 1. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent
asked by Tiffany 
Physics
A laser source emits lights of wavelength 62100m and has an output of 35mW calculate how many photons are emitted per minute by this laser sourse
asked by Uuu 
physics
A remotecontrolled car’s wheel accelerates at 22.6 rad/s2. If the wheel begins with an angular speed of 10.6 rad/s, what is the wheel’s angular speed after exactly three full turns?
asked by morg 
physics
A bus moves from rest with a uniform acceleration of 2ms(square)for the first 10s.
asked by marine 
statistics
Suppose that in a large population the proportion of people that have a certain disease is 0.01. Use the Poisson approximation to find the probability that at least four people will have the disease in a group of 400 randomly selected people.
asked by andrea 
Accounting
A company uses activitybased costing. The company produces two products, 001 and 002. Information relating to 001 is as follows: Units produced: 38,000 Machinehours: 15,000 Direct labor hours: 16,000 Materials handling (number of moves): 8,000 Setups:
asked by Serenity 
physics
A projectile is fired at 12.5 m/s at an angle of 53.1 with the horizontal from a point 75m above the ground. A) How long does it take to reach the ground? B)What max height does it reach? C) What horizontal distance does it travel before striking the
asked by Brooke 
Physics
Determine Centripetal Acceleration acting on the person standing at the equator? (the radius of earth is given)
asked by Neha 
North Central
Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a
asked by Mashel 
math
the length of a rectangle exceed its breadth by 4cm.if length and breadth are incresed by 3cm the aera of the new reactangle will be 81cm more then that of the given reactngle.then a)length of the given rectangle is? b)breath of the given rectangle is?
asked by surya 
Criminal Justice/Report Writing
When an investigator writes a conclusion in an investigative report based on his or her opinion, he or she is: A. properly writing conclusions based on personal experiences. B. allowing a conclusion to be inappropriately arrived at in lieu of a conclusion
asked by Pat 
Physics
The 56 kg man in the roller coaster car is sitting on a bathroom scale. If he is traveling at 40.9 m/s at the point shown and the radius of the vertical coaster track is 87 meters, to the nearest newton what does the scale read? What is the answer to the
asked by Sara 
English
For class I read the poem by Wilfred Owen "Dulce et Decorum Est". I have most of my essay down but one paragraph where I focus mainly on the use of the word "beggars". I so far, only have one point/sentence: "The specific word ¡°beggars¡± reflects a
asked by Bethany 
science
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer
asked by Anonymous 
STAT
1. In a study of the income of U.S. factory workers, a random sample of 100 workers shows a sample mean of $35,000. Assume that the population standard deviation is $4,500, and that the population is normally distributed. A) Compute the 90%, 95% and 99%
asked by Hugh 
math
there are 4 quarters in a dollar. Steven earned 3 dollars last month. How many quarters did he earn?
asked by manny 
mathzzzz gkpp
the sum of money will amount to rupees 12000 in 2 years at the rate of 10% per annum compounded anually
asked by cbse 8th 
physics
A thin rod of mass M and length L is lying on a frictionless table. It is given an impulse of 4.5 N*s by a force of magnitude F on one end at an angle of 35 degrees to the rod. How far will the center of mass of the rod travel when the rod has completed 12
asked by Marychan 
chemistry
how many milliliters of10.0m Hc(aq) are needed to prepare 890.0 ml of 1.00m Hcl(aq)
asked by lisa 
Algebra
My calculator is broken. The "+" key works correctly,but whenever I try to compute ab, the calculator performs ba instead. What answer does mny calculator compute for the expression ((710)+3)5? Thank you!
asked by Trish Goal 
Algebra
Define #N by the formula #N=.5(N)+1. Calculate #(#(#50)).
asked by Trish Goal 
Algebra
The inverse of f(x)=2x1/x+5 may be writeen in the form f^1(x)=ax+b/cx+d where a,b,c, and d are real numbers. Find a/c. Thank you!
asked by Trish Goal 
social studies
2. During the 1950s, the advent of _______ created the largest and fastestgrowing impact on American society. A. suburban communities B. television. C. fundamentalist religion. D. educational reform
asked by janell 
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 
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 B.
asked by Amanda 
Physics
When maximum power is transferred to an external resistor R by a battery of emf E and internal resistance r, the ratio of r/R is? Answer 1:1 Can some please explain? Thankkks!
asked by Ariana 
Criminal Justice/Report Writing
If you approach your investigative work with an attitude of eliminating potential writing problems as they arise, you will be able to: A. write a report that has no negative investigative information. B. complete investigative responsibilities by finding
asked by Pat 
working with parents and families
The purpose of including a dress code in the parent handbook is to ensure that children are A. neatly and cleanly dressed. B. dressed in a manner reflecting their parents' income. C. dressed in comfortable and suitable clothing. D. all dressed alike so
asked by Amanda 
Physics
a place kicker must kick a football from a Lint 36 meters from the goal. As a result of the kick, the ball must clear the crossbar, which is 3.04 meters high. When kicked, the ball leaves the ground with a speed of 20 meters per second at an angle of 50
asked by Joanne 
history
Check my answers please? The Second Great Awakening was a conservative reaction to deism, the expanding frontier, & the industrial revolution. True, it was definitely a reaction to the IR & deism The romantic reaction to rationalism & the industrial
asked by Anonymous 
Algebra
The inverse of f(x)=2x1/x+5 may be writeen in the form f^1(x)=ax+b/cx+d where a,b,c, and d are real numbers. Find a/c. Thank you!
asked by Trish Goal 
phsics
a man weighs 1370N on earth what would he weigh on jupiter where free fall acceleration is 25.9 m/s2 the acceleration of gravity is 9.8 m/s2 in units of N
asked by Martin 
science
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer
asked by Meylin 
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 45.7 cm and a mass of 9.1kg. How many revolutions did one of the front tires (assuming only the back
asked by Anonymous 
algebra 2
Write in simplest form without negative exponents( leave responses as simplified fraction. 1.(ax)^2 2[(4)^2]^5
asked by Janet 
Chem
Determine all possible values of each quantum number (n, l, ml, and ms) for electrons in both the 2s and 2p subshells. for 2s the the quantum number would be 1/2,0,1/2 right?
asked by Feather 
Physics
A 1000 kg Toyota, initially traveling at 40 mph, collides into the rear end of a 2000 kg Cadillac, initially stopped at a red light. The bumpers lock and the two cars skid for 2 seconds before coming to rest. Calculate the coefficient of kinetic friction
asked by Charles 
working with parents and families
At home, Harry's father never allowed him to touch any tools. At the day care center Harry attends, the caregiver allows a confused Harry to hammer and saw. This example illustrates the caregiver's and the parent's lack of A. a common goal. B. beliefs. C.
asked by Amanda 
working with parents and families
Parents should view a parentcaregiver conference as a time to be used primarily for A. sharing information and ideas about their child. B. the caregiver's evaluation of their parenting techniques. C. informing the caregiver of their wishes concerning
asked by Amanda 
physics
Arann launches a rock into the air such that it rises 20.0 m in the first third (time wise) of its ascent to maximum height. Determine the rock's maximum height and launch speed. Determine the time(s) at which the ball is at a height of 10m. PLEASE HELP
asked by Isabelle 
chemistry
Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 50.21°C was added to 25.00 g of water at 25.00 °C, resulting in an equilibrium temperature of 35.00 °C?
asked by Mimi 
working with parents and families
Which of the following items should not be included in a child care facility's parent handbook? A. Statement of the facility's program philosophy B. Summary of scheduled events at the facility C. Names of and information about staff members D. Names of and
asked by Amanda 
HISTORY
Many Americans settled in Texas illegally, in spite of the fact that it was claimed by the nation of (Mexico.) The revivals of the Second great Awakening were especially prevalent A. in England B. in New England C. in New York City D. in Florida E. on the
asked by Anonymous 
Statistics
a city needs to perform some road maintenance and will rent excavator m achines from a company. Each excavator will work at least 1 hour, but no more than 4 hours at a time. It is known that the working time of each excavator is evenly distributed. a) What
asked by Sarah 
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 45.7 cm and a mass of 9.1kg. How many revolutions did one of the front tires (assuming only the back
asked by john 
physics
a warehouse employee is pushing a 38 kg desk across a floor at a constant speed of 0.4 m/s. How much work must the employee do on the desk to change the speed of 1.5m/s?
asked by jorge 
Algebra
The maximum velocity of a roller coaster depends on the vertical drop from the top of the highest hill to the bottom of that hill. The formula v = 8 gives the relationship between maximum velocity, v (in feet per second), and height, h (in feet). I have
asked by Babydoll07 
calculus
integration of x^2/(x+3)sq.root of 3x+4 w.r.t. x
asked by Anonymous 
PHI
Which of the following does Peter Singer assert about the principle of equality? (Points : 1) People should have equal rights because they are factually equal. People with higher abilities, it stands to reason, should have greater rights. Different groups
asked by Randy 
Algebra
Jess uses her scanner to scan pages at the rate of $.09 per page. She decides to rent a scanner for $70 a year. The cost of scanning using the rented scanner is $.02 per page. Please help me write an inequality that can be used to calculate the number of
asked by Anonymous 
math
Four times the sum of a number and 15 is at least 120. Let x represent the number. Find all possible values for x. A. x ≥ 26 B. x ≥ –15 C. x ≥ 15 D. x ≥ –26
asked by Anonymous 
physics
During burnouts at the local drag strip, a dragster’s 45.0kg tire rotates at a speed of 35.0m/s. If the tire has a radius of 0.500m what is the centripetal force acting on the center of the tire rim during this burnout?
asked by Anonymous 
Math
Larry kicked a ball at a 50 degrees angle to a direction north. It travels a horizontal distance of 20ft 9inchs before hitting the ground .The ball travels exactly 1min 18 sec after hitting the ground. The ball hit a mud and cause dthe ball to subside
asked by Jenny 
working with parents and families
New parents often experience stress and insecurity in their new and developing role as a parent. A caregiver can help to alleviate some of this stress by A. helping the parents to learn more about the developmental levels of children. B. criticizing their
asked by Amanda 
Calculus
Determine the equation of the tangent line at the indicated coordinate. f(x) = e^(0.4x) * ln(18x) for x= 3 The equation of the tangent line in slopeintercept form is
asked by Zoey 
HISTORY
Brigham Young B. was killed by a lynch mob in Illinois in 1844 C.led slave revolt in Virginia in 1831 D.led the Mormons to their settlement in Utah E.wrote the golden tablets which became the basis for the Mormon faith I'd say D An additional factor
asked by Anonymous 
Chemistry
Find the mass of each of the following: (a) 5.52 L O2 at 1.89 atm and 250.0 K (b) 3.43 L NH3 at 0.911 atm and 27°C (c) 117 mL SO2 at 0.823 atm and 53°C
asked by Sara 
Chemistry
If ununseptium (element 117) reacts with oxygen what would be equation of the product? Thanks so much!
asked by Bob 
History
What factors influenced the creation of rules in ancient India, China and Japan?
asked by MaryAnn 
Math
How to solve x^2y^22y1
asked by Curri 
accounting
8 cost categories that variable and which are fixed
asked by jujuanyodh 
Accounting
How can I calculate the setup costs of a product using the activitybased costing method?
asked by Lyra 
Science
demonstrate how the ear works
asked by Mistrie 
chemistry
Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R. Li + H2O > KCI + F2 > Au + HNO3 > CI2 + NaF > Li + Fe(NO3)3 >
asked by Rose 
work with parents and families
To succeed, a parentcaregiver relationship must be based on mutual A. Trust B. Wariness C. Doubt D. Ability A.
asked by Amanda 
English
How does Shakespeare use dramatic irony to engage his audience in Romeo and Juliet?
asked by Hifza 
physics
a wheel 0.45m in diameter starts from rest and rotates with uniform acceleration to 6000 radians per minute in a time of 4s.Find angular acceleration of the wheel and speed of a point on the rim at end of 4s =w/t
asked by takunda 
algebra
How can you solve an equation or inequality in one variable?
asked by Kimmy 
Chemisrty
You wish to make a 0.195 M hydrochloric acid solution from a stock solution of 6.00 M hydrochloric acid. How much concentrated acid must you add to obtain a total volume of 50.0 mL of the dilute solution?
asked by Letishia 
Finance
Wheel Industries is considering a threeyear expansion project, Project A. The project requires an initial investment of $1.5 million. The project will use the straightline depreciation method. The project has no salvage value. It is estimated that the
asked by Osoro 
math
Can anyone explain please,thank.the sum of 8numbers is x,and the sum of different set of nine numbers is 2x.the average of the smaller set of numbers is 1 more than the average of the larger set of numbers
asked by julian 
mathd ggggggggggkkkkk
find the compound interest on rupees 1000 at rate of 10% per annum compounded anually for 3 years
asked by cbse 8th 
chemistry  DrBob?
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom. 1. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent
asked by Tiffany 
work 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.
asked by Amanda 
حاسب
Write a program that reads from the student user: his name as string (%s), his id as integer and his total marks in C programming course as float. Then store these information in student structure. After that, Calculate his letter grade in this course
asked by هيا 
curriculum
Describe and explain four safety practices teachers should employ when learning children adult direct exercises.
asked by Diana 
working with parents and families
The major purpose of the home visit is to A. determine if the family can afford day care. B. meet the child's parents. C. gain an understanding of the childfamily relationship. D. evaluate the family's standard of living. A.
asked by Amanda 
Physics (projectile motion)
Projectile fired in earths gravitational field at a height of of 0.90m above ground level, with a horizontal velocity of 9m/s. How far will the ball fly before hitting the ground? How long will the ball stay in the air?
asked by Darrien 
Sociology/Social Responsibility
I don't know how to set up the journal entry (when I Google it it just gives me accounting journals). I also am not sure how to go about answering the questions. Could someone please help!! Write a 23 paragraph Journal entry addressing the following
asked by Cathy 
Chemistry
How do I find the number of energy levels in a positive and a negative ion? And also how do I find the number of electrons in a ion and a atom?
asked by Anonymous 
physics
How can the equation be prove:maximum height,time of flight and maximun range in projectile?
asked by umaru 
Algebra (1)
Hello! I'm currently stuck on a ratio problem and do not understand how to work it. The question is: y+2 over y+7 = ll over 31. Please explain the answer and how to find it.
asked by Izzy 
physics
What is the cause of esacape velocity
asked by umarum977 
College chemistry
How much heat is transferred when freezing 520 grams of water at 0 degrees Celsius?
asked by Anonymous 
Need help by tonite FINANCE
2. Interest rates A twoyear Treasury security currently earns 5.25 percent. Over the next two years, the real interest rate is expected to be 3.00 percent per year and the inflation premium is expected to be 2.00 percent per year. What is the maturity
asked by Anonymous 
physics
A space station Radar locates sattelites A and B at a certain moment: A_0=(a_1,0,1^3), B_0=(0,b_2,b_3) the space station is located at (0,0,0) and the sattelites moves with a uniform velocity related to the space station: v_A=(V_A,0,0), v_B=(V_B,V_B,0)
asked by Adam 
physics
a projectile is fired at 50 meters per second at an angle of 30 degrees below the horizontal off a cliff that is 50 meters high. How far away and at what speed and angle will this projectile land?
asked by Joanne 
working with parents and families
The common goal of the caregiverparent relationship is A. what the parent can gain. B. the parents' rights. C. what's best for the child. D. what the caregiver can gain C.
asked by Amanda 
Algebra
simplify the expression ã7(7ã7)+9ã7
asked by Anita 
Computer Science / programming
Show the contents of each register and or memory location used after each instruction. MOV BH,33 BH=33 MOV [0500],BH BH=33, [0500]=33 MOV CL,66 CL=66 MOV [050],CL CL=66, [050]=66 MOV SI,0500 SI=0500 MOV BX,7643 BX=7643 ADD [SI],BX SI=0500, [0500]=76
asked by Eren A 
Clinical Chemistry
I am not sure how to start this. You are given a 200% solution of a compound. You must dilute and construct a calibration curve to interpret concentration of compound in unknown samples. Show the steps needed to perform a twofold serial dilution through 5
asked by Ashley 
math
fly happy airlines lets each passenger bring 2 suitcases. their cargo area can hold 30 suitcases. How many passengers can fly on Fly Happy's plane?
asked by manny 
Calculus
Use the product rule to find the derivative of the following. k(t)=(t^24)^2 k'(t)=
asked by Duane 
fluid
Air enters a converging nozzle at 3.5 m/s at 1.2 kg/m3. The inlet area is 5 cm2. If the outlet area is 1.7 cm2 and velocity of 7.5 m/s, determine the volume flow rate and air density at the nozzle outlet.
asked by aira 
Algebra
Can you tell me if my answers are correct for these problems? 1. 3i  10  8i  5 Answer 74 65i  +  89 89 2. 11i^2 + 1  12i  8 Answer: 5 (2  3 i)  26 3. square root 25 * 8 square root 49 Answer: 280 4. square
asked by John 
Algebra check?
Sorry the first post formatted weirdly. 1. 3i  10  8i  5 Answer 74 65i  +  89 89 2. 11i^2 + 1  12i  8 Answer: 5 (2  3 i)  26 3. square root 25 * 8 square root 49 Answer: 280 4. square root 64 + 12 square
asked by John 
math
3n(1)=29 My answer is n=9.9 I doubt plZ help. Thank you,
asked by Pam 
chemistry
What is the eq.wt of C7H6O3 and why ??😊
asked by sara 
8th grade language arts
The Trouble with Television by Robert Mac Neil It is difficult to escape the influence of television. If you fit the statistical averages, by the age of 20 you will have been exposed to at least 20,000 hours of television. You can add 10,000 hours for each
asked by Yvonne 
Chem
Determine the total possible number of orbitals and electrons for both 2s and 2p. What is the maximum number of electrons per orbital? How are their spins related? In this question i don't get how the spins are related?
asked by Feather 
Physics
An ant climbs onto the side of a bicycle tire a distance of 40.0 m from the hub. If the 0.010 g ant can hold onto the tire with a force of 4.34*10 to the 4, at what frequency would the tire fling the ant of assuming the wheel is spun on a horizontal
asked by Neha 
Physic
Work is done when.
asked by Ed 
science
how many grams of CO2 (g) are there in 82.0ml of the gas at 0.916 atm and 30 degrees ceksius
asked by sherry 
working with parents and families
Which one of the following is usually scheduled to occur at least twice a year? A. Parentcaregiver conference B. Parent discussion group C. Parents' volunteer appreciation day D. Newsletter A.
asked by Amanda 
working with parents and families
Caregivers should try to keep exchanges with parents at drop off and pick up A. as positive as possible. B. a time to only report negative things about their child. C. as public as possible. D. as long as possible. A.
asked by Amanda 
Constitutional Law
Is the Federal Constitution in Malaysia supreme? If so, who ensures its supremacy?
asked by Russ 
working with parents and families
A caregiver who stands in loco parentis to a child must act as _______ would. A. a certified teacher B. the parents C. the state officials D. a third party B.
asked by Amanda 
working with parents and families
Newsletters sent to parents should not be A. 35 pages long. B. informative. C. visually attractive. D. one page front and back D.
asked by Amanda 
Exponents
Hi just curious when evalutating 5^2 Would the answer be 25 Or would it be 0.4 = 2/5 I am lost
asked by Madi 
Algebra 1B
Can you give me the steps to the answer? How many real number solutions are there to the equation 0 = –3x² + x – 4? 0 1 2 3
asked by Anonymous 
English
The Korean team made it to the final 16. (At a soccer match)  What is the meaning of 'made it to'? 1. The Korean team got to the final 16. 2. The Korean team reacher the final 16. 3. The Korean team arrived at the final 16. Or do you
asked by rfvv 
history
The expansion of cotton farming to the West necessitated the use of greater numbers of slaves for its cultivation. True, right?
asked by Anonymous 
history
Through the midnineteenth century most colleges and universities were founded by? I would say women.
asked by Anonymous 
math
if x is the number of trees make an equation that shows the y number is the number of grocery paper bags made by the trees
asked by yuri 
chemistry  instrumentation
What can account for differences in the calculated value of a drug concentration in a sample as determined by standard curve method and response factor method?
asked by Anonymous 
chemical
What the eq.wt of C7H6O3 and why?
asked by sara 
work with parents and families
When a parent asks for your help and you refer them to a resource within the community they A. are probably not going to follow through and use your referral B. are usually just asking for future reference and don't need assistance at that time. C. usually
asked by Amanda 
Math
The area of a rectangle pool was 120 square meters. If the long side is 7 meters plus a number and the width is 6 meters. What is the value of the variable? I couldn't make a equation for this; I tried and I got 7+x+6 = 120 and that doesn't seem right.
asked by Anonymous 
essay excerpt edit
can someone edit this? To contrast, in the film Tangled (2010) the mother of Rapunzel, who is exhibited as a Queen, also falls ill, although it is due to legitimate medical ailments, as opposed to a sense of helplessness. She is then limited to a bedridden
asked by christine 
Sequences
If {x_n} is not bounded above, does x_n > infinity? prove there exist a subsequence {x_n} where k=1 to infinity such that x_n_k > infinity
asked by Ashley 
working with parents and families
An important use for telephone conversations at a child care facility is to help A. parents develop professional skills. B. parents understand program philosophy. C. staff members understand program philosophy. D. staff members understand the reason for
asked by Amanda 
chemistry
What is the eq.wt of C7H6O3 and why ??😊
asked by sara 
Law
Discuss the power lies within the Parliament in UK and whether the power of parliament had been limited in the present day.
asked by Steven 
working with parents and families
When parents ask for advice that you aren't capable of giving, you should use your _______ to refer them to someone who can assist them. A. guest speaker B. parent discussion group C. parent handbook D. resource file D.
asked by Amanda 
statistics and probability
A company manufactures washers, about 5% of which are defective. If a random sample of 100 washers are inspected, what is the probability that fewer than 4 are defective?
asked by ashley 
Computer Science/ programming
How long (how many bytes) is the machine code (object code)? 1855:0100 BE0002 MOV SI,0200 1855:1030 BF0003 MOV DI,0300 1855:0106 B98000 MOV CX,0080 1855:0109 BA04 MOV AL,[SI] 1855:010B 8805 MOV DI],AL 1855:010D 46 INC SI 1855:010E 46 INC SI 1855:010F 47
asked by Eren A 
Math Calc
Given a right triangle ABC with a=13 and b=26, find the value of angle A, angle B, and side length c. Round to the nearest thousandth.
asked by Johnny 
Intermediate Algebra
Can someone please explain why (9)1/2 is not a real number but 9 1/2 is a real number
asked by Babydoll07 
finamce
Define captital structure weights)Templeton extended care facilities, inc., is considering the acquisition of a chain of cemeteries for $400 million. Since the primary asset of this business is real estate, Templetons management has determined that they
asked by liz 
WORLD HISOTRY
WAHT IS THE BEST SOURCE FOR ANCIENT CHINA HISTORY FOR HIGH SCHOOL STUDENT?WEBSITE, TEXT BOOKS
asked by ELVIE 
science
I want to know whic n2 and co2 rms become same?
asked by sayan 
Algebra 2
Telephone numbers are made of 7 digits. Digits can be repeated but the first digit cannot be 0 or 1. How many different telephone numbers can be created? I believe you use combination function, but I am not sure how and where.
asked by John 
working with parents and families
The important message parents should receive during their initial visit to the facility is that you, as a caregiver, intend to meet their child's needs by A. acting according to your personal beliefs and principles. B. acting according to your program
asked by Amanda 
working with parents and families
The best device for presenting complete information about day care fees and policies is the A. conference. B. parent handbook. C. advertising brochure. D. newsletter. B.
asked by Amanda 
Writing
Is "had" an example of a "to be" verb?
asked by A 
Curriculum
I need help.... Describe four key ways a teacher can create a printrich environment.
asked by Daniela 
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. A.
asked by Amanda