
Math  point on the graph (check +help)
Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0 I do not seem to get the answer... I find the first derivative of f(x0 and equate it to the value of the slope from the
asked by Anonymous on October 23, 2010 
Physics
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^11N For my x direction I got 5.8 *10^11N, and for my y dirction i got 5.1
asked by Sammy on August 11, 2009 
CALCULUS
a bacteria culture grows with a constant per capita growth rate. After 2 hours there are 500 bacteria and after 6 hours the count is 312500, find the initial population and the population after 8 hours
asked by Sarah on December 9, 2012 
college,stats/ PLZ HELP:( need it within nxt 6hrs
Among Canadian households, 24% have telephone answering machines. If a telemarketing company contacts 2500 households find the probability that between 625 and 650 households, inclusive, have answering machines.
asked by Sandra on April 7, 2010 
physics
(a) Find the potential at a distance of 0.920 cm from a proton. (Note: Assume a reference level of potential V = 0 at r = ∞.) V (b) What is the potential difference between two points that are 0.920 cm and 2.00 cm from a proton? V (c) Repeat parts (a)
asked by oxygen on October 13, 2013 
math
The ratio of the tens digit to the units digit is 1:4. If the digits are reversed, the sum of the new number and the original number is 110. Find the original number by using a systems of equations with elimination
asked by misa on September 11, 2008 
Physics
A 8.38g bullet is fired into a 4.60kg block suspended as in the figure. The bullet stops in the block, which rises 15.0cm above its initial position. Find initial speed of the bullet.
asked by Jose on February 13, 2013 
Calc
nadia is pulling a tarp along level ground with a force of 25 pounds directed along the tarp. If the tarp makes an angle of 50 degrees with the ground, find the horizontal component of the force.
asked by Tori on March 11, 2013 
Math
Imelda's plane travels at a speed of 350kph in still air. One day, she travels 169km against the wind at the same time it takes to travel 190km with the wind. Find the speed of the wind.
asked by Raquel on September 14, 2016 
math
PQ is a tower standing vertically on the horizontal ground. from A, the angle of elevation of top P of the tower is 45°. On moving 50 m. up a slope of 15°, the angle of elevation of P is found to be 75° from B. The horizobtal through B is BC. find
asked by tawheed on February 25, 2017 
8th grade algebra
the length of a rectangular garden is 5 feet longer than its width. The garden is surrounded by a 2footwidesidewalk. The sidewalk has an area of 76 square feet. Find the dimensions of the garden
asked by val on February 11, 2010 
Physics
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^11N For my x direction I got 5.8 *10^11N, and for my y dirction i got 5.1
asked by Sammy on August 12, 2009 
Math
Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to take each semimonthly pay period (twice a month) at 6% compounded bimonthly, in order to pay off the loan.
asked by Mai on April 22, 2014 
physics
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction is 14.0°, find the critical angle for the liquid when surrounded by air. im not sure how to start this problem.
asked by julie on April 7, 2011 
Chemistry(explain Please)
How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the
asked by anonymous on June 22, 2012 
Physics
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^11N For my x direction I got 5.8 *10^11N, and for my y dirction i got 5.1
asked by Sammy on August 12, 2009 
Math
Solve the proportion: You can find the distance from a thunderstorm by counting the number if seconds between the lighting flash and thunder. For example, if the time difference in 21 seconds, then the storm is 7 km away. How far away is the storm if the
asked by Amy on January 9, 2016 
Fifth Grade Math
How do you explain how to do this math problem to a child? 7/10 of the U.S. population (175,104,000)in 1991 believed saying A to be true. What is the total population? We are trying to find what the whole population total is. They have given us 7/10 or
asked by Tiffany T on December 14, 2009 
Math
a rectangular block 16 cm long has two spare faces. A cube of volume 343 cubic centimetre is cut from the rectangular block. Find the volume of the remaining block. Help me pls^
asked by 大S on June 4, 2012 
College algebra
A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed, but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed
asked by Anonymous on June 22, 2012 
Trigonometry
Three forces with magnitudes 75 pound, 100 lb, and 130 pound act on an object at angles of 25 degrees, 55 degrees, and 145 degrees respectively. Find the direction and magnitude of the resultant of these forces.
asked by Jazmyne Barto on June 11, 2016 
Statistics
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. n=21, x=18, p=0.75
asked by Kasey on June 30, 2014 
math
suppose you wanted to place 1,000,000 pennies in large coin banks. if you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?
asked by anabelle on July 25, 2011 
algebra
In planning for retirement, Karen deposits some money at 2.5% interest and deposits twice as much at 3% interest. Find the amount of money invested at each rate if the total annual income from interest is $850.
asked by Faith on November 10, 2017 
PHYSICS
Referring to the diagram, if c = 32 and theta is equal to 57.6 degrees, find the difference in the length of sides a and b. Another words determine the length of side a, determine the length of side b, and then subtract b from a (a  b). (For example if a
asked by JJ on August 26, 2011 
science
A ball of mass 1 kg dropped from 9.8m height , strikes the ground and rebounds to a height of 4.9m .If the time of contact between ball and ground is 0.1s,then find impulse and average force acting on ball.
asked by Kundan on September 10, 2017 
math
the international space station orbits 350 km above earth's surface. earth's radius is about 6370 km.use the pythagorean theorem to find the distance from the space station to earth's horizon.
asked by tee on February 18, 2012 
Math
A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.
asked by Karen on February 2, 2015 
Maths
the length of a rectangle L metres and the width of the rectangle is W metres. Each measurement is correct to the nearest cm. Find, in terms of L and W the difference between the lower bound and the upper bound of the area of the rectangle.
asked by Graham on November 12, 2014 
physics
A particle is moving along a straight line and its position is given by the relation x=( t36t215t+40)mm. Find: (a). The time at which velocity is zero. (b). Position & displacement of the particle at that point. (c). Acceleration for the particle at
asked by umesh on June 19, 2016 
Math
Turner measures 3/4 foot of ribbon for a costume.He needs 9 pieces of ribbon with that same length. Fill in the blanks to complete an equation that turner can use to find the total length of ribbon that he needs, in feet
asked by Anonymous on January 21, 2016 
Math
A vendor bought 10 dozen eggs rate of 22 rupees perdozen six of the eggs were rotten he sold remaining eggs rate of 2.50 rupees per egg find his profit or loss
asked by Shivreet on September 14, 2017 
Linear Algebra 2
This is another question I can't figure out. Given planes pie1 and pie2 defined as: pie1: 2x + 5y  7x + 2 = 0 pie2: x + y  z + 3 = 0 (b) Give the equation of the line of intersection of these two planes. I only found the answer for (a) where they ask to
asked by Robert on September 9, 2012 
Geometry
For a given box, the height measures 4 meters. If the length of the rectangular base is 2 meters greater than the width of the base and the lateral area L is 96 square meters, find the dimensions of the box.
asked by Jordie on May 30, 2012 
physics
A meterstick is at rest in an inertial frame S2.If S2 moves with a speed of 0.8 c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Answer in units of m.
asked by kay on March 28, 2011 
Physics
The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the center of Jupiter with an orbital period of about 6.18 X 10^5 s. Using this information, find the mass of Jupiter.
asked by Cooper on November 9, 2011 
AP Calculus
Suppose that f has a continuous second derivative for all x, and that f(0)=1, f'(0)=2, and f''(0)=0. A. Does f have an inflection point at x=0? Explain your answer. B. Let g'(x) = (3x^2 + 2)f(x) + (x^3 + 2x + 5)f'(x). The point (0,5) is on the graph of g.
asked by Anonymous on April 23, 2016 
PROBABILITY MATH
A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Help me.. since it would be replaced would the answer
asked by HM on November 9, 2011 
PROBABILITY MATH
A batch consists of 12 defective coils and 88 good ones. find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Help me.. since it would be replaced would the answer
asked by HM on November 8, 2011 
algebra
I just need to know if my work is correct. I am working in Excel and I need to find the formula for the expense Wages. I am not sure if wages consists of the gross pay or the net pay. Does anyone have any suggestions what it might be? I was thinking it
asked by Excel on May 25, 2010 
physics
There is motion of a straight track between two stations. Average speed: 12m/s Distance between stations: 3600m. Please help how could I find the max speed given these information? and it isn't like the average speed so it confused me
asked by physics8ater on January 19, 2018 
physics
One end of a string 5.34 m long is moved up and down with simple harmonic motion at a frequency of 15 Hz . The waves reach the other end of the string in 0.5 s . Find the wavelength of the waves on the string. Answer in units of cm
asked by Leslie on September 7, 2011 
math
A ladder is leaning against the side of a house and forms an angle of 66o with the ground. The foot of the ladder is 11.3 feet from the base of the house. Find the length of the ladder to the nearest foot.
asked by danielle on May 27, 2014 
Algebra
Abe and Sal left at the same time. They traveled in opposite directions. Sal traveled 50mph faster than Abe. After four hours, they were 400 miles apart. Find Abe's speed.
asked by Linda on March 15, 2013 
Calculus
The velocity of a car (in miles per hour) is given by v(t) = 61.25t − 17.5 t^2 where t is in hours. Write a definite integral for the distance the car travels during the first 2.5 hours. Use your graphing calculator to find this distance. Distance =
asked by Jane on November 14, 2010 
Geometry
A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.
asked by Karen on February 2, 2015 
Calculus
The population (in thousands) of the Tzitzit bird is well described by a function of the form P(t) = ae^kt, where t is the time in years and a and k are constants. If the population was 10 thousand when t0 and 300 thousand when t=3, determine the
asked by Billy on October 22, 2012 
math
A student invests two sums of money at 3% and 4% interest, receiving a total of $110 in interest after 1 year. Twice as much money is invested at 4% than at 3%. Find the amount invested at each interest rate. Where do I even begin with this?
asked by randy on March 13, 2012 
Math
in order to find out what the best restaurant is in town you call 25 of your friends at random. what type of survey is this? a biased brandom csystematic dstratified my answer is biased because you may pick at random but they are all still your
asked by Steve on April 25, 2015 
Will Someone please respond! Chem
How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the
asked by anonymous on June 22, 2012 
Calculus
solid is formed by rotating the region bounded by the curve y=e−3x^2 and the xaxis between x=0 and x=1, around the xaxis. The volume of this solid is 3(1−e^−3). Assuming the solid has constant density , find x and y. I know that y bar must be 0.
asked by Terrence on October 27, 2011 
maths
A large pipe has a diameter of 9.8×10^2cm.Water flows in the pipe at a speed of 5m s^1.Find the volume in m^3,of water that flows out from the pipe every second,correct to 2 significant fogures.[Take pai as 3.142]
asked by ashley on January 11, 2014 
Trig
Find two values of theta that satisfy the equation. give your answers in degrees (0degrees
asked by Sue on May 19, 2012 
homefield
There are 9 tennis balls in a box, of which only 5 have not previously been used. Four of the balls are randomly chosen from the box. Let be the number of new balls among the selected ones. (a) Find the probability distribution of : (b) Evaluate the
asked by osman on March 1, 2013 
math
an airplane is flying at a constant altitude of 28000 meters. when first seen to the east of the observer, the angle to the airplane is 71.5 degrees. after 73 seconds, the angle of elevation is 51.6 degrees. find the speed of the airplane.
asked by Kindell on February 19, 2008 
algebra
A train can travel 280 miles in the same time that it takes a car to travel 140 miles. If the train's rate is 40 miles per hour faster than the cars, find the average for each.
asked by Jam on February 20, 2011 
business math
using the exact interest method 365 days, find the amount of interest on the following loans, principal is $1,700, the rate is 121/2 percent, time days is 33. what is the exact interest
asked by Anonymous on July 5, 2013 
AP Chemistry
A 0.3500 MHCl solution was used to titrate a 21.60 mL sodium acetate solution. The endpoint was reached after 25.75 mL of titrant were added. Find the molar concentration of sodium acetate in the original solution.
asked by Rebecca on February 4, 2018 
science
A neckless weighing 50 g in air, but it wheighs 46 g in water . Assume copper is mixed with gold to prepare the neckless. Find out how much of copper is present in it?(specific gravity of gold is 20 and that of copper is 10)
asked by arun on May 5, 2010 
Math
The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!
asked by Nate on April 27, 2017 
algebra
A car dealer recently had a promotion which they gave an 8% discount to the first 50 people through the door. If you are one of those people and the car you are interested in cost $25,300.00, find the discount amount and the new price of the car.
asked by Duran on April 13, 2016 
Algebra
The cost of a large pizza is $7.99 plus an additional $0.99 for each topping. Tom ordered a large pizza that cost $10.96. Write and s olve an algebraic equation to find the number of toppings on the pizza.
asked by Natoutou on March 20, 2016 
Physics M/C Quesion
Two cyclists are travelling at constant speeds around a 400 m track in opposite direction. The speed of Jeff is 1.5 times the speed of Rob. The cyclists find they meet every 20 s. What is the speed of Jeff? A) 9.0 m/s B) 12 m/s C) 13 m/s D) 20 m/s E) 30
asked by the physics kid on March 3, 2016 
math
Suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?
asked by Anonymous on August 22, 2011 
MATH
Suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?
asked by FELECIA on August 27, 2012 
physics
A hockey puck, mass 0.130 kg, moving at 40.0 m/s, strikes an octopus thrown on the ice by a fan. The octopus has a mass of 0.270 kg. The puck and octopus slide off together. Find their velocity.
asked by Anonymous on January 9, 2012 
math
When a square piece of paper is folded in half vertically, the resulting rectangle has a perimeter of 39cm. In square centimeters, find the area of the original square piece of paper.
asked by kristen on March 27, 2011 
Math  Statistics
The proportion of red M&M's made is 0.24. Suppose one took a random sample of 51 M&M's. (a) What is the probability that an SRS of 51 M&M's has as its proportion of red M&M's 0.23 or below? (b) Find the 80th percentile for sample proportions of red M&M's
asked by Samantha on June 25, 2015 
math
As^5.V(s)+Bs^4.V(s)+Cs^3.V(s)+Ds^2.V(s)+Es^1V(s)+F.V(s)=1, where V(s) is the transformed transient output voltage. Rearranging the 5th order transient polynomial equation above we have: V(s) = 1 / H(s) where H(s) is a polynomial is a polynomial in s to be
asked by Ak on April 17, 2016 
Moanalua Middle School
One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.
asked by Fred on May 18, 2012 
Mathematical Economics and Linear Programming
Using the quotient rule, find the derivation of the following function: a) (ax^2+b)/(cx+d) Here is my work but i need help because am lit bit confuse solution a) (ax^2+b)/(cx+d) df/dx = (2ax)(cx+d)(ax^2+b) (c)/(cx+d)^2 df/dx =
asked by Aron on August 12, 2015 
Chemistry
The pressure of a gaseous mixture of NH3 and N2 decreased from 1.50 kPa to 1.00 kPa after the NH3 was absorbed from the mixture. Assuming ideal gas behavior, find the composition of the original mixture.
asked by Dia B on September 12, 2012 
Physics
an adult 68 kg cheetah can accelerate from rest to 20.1 m/s (45 mph) in 2.0 s. Assuming constant acceleration, (a) find the net external force causing this acceleration. (b) where does the force come from? that is, what exerts the force on the cheetah?
asked by Adam on October 4, 2009 
help please math
Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to make each bimonthly pay period (twice a month) at 6% compounded bimonthly, in order to pay off the loan.
asked by dreamkatcher76 on December 4, 2013 
Physics
The string of a conical pendulum is 54.5 cm long and the mass of the bob is 0.22 kg. a) Find the angle between the string and the horizontal when the tension in the string is three times the weight of the bob. b)Under those conditions, what is the period
asked by J on February 26, 2012 
chemistry
1. how many grams are in 5.66 mol of CaC03 (3 is the subscript)?  mass= 5.66 mol CaCO3 x mass/1 mol CaCO3 How do i finish this off? 2. find the number of moles in 508g of ethanol (C2H6O)? 2 and 6 are subscripts
asked by STEPHANIE on December 10, 2008 
Math
A hanging spring is compressed 3 inches from its rest position and released at t = 0 seconds. It returns to the same position after 0.8 seconds. Find: a) the amplitude of the motion b) the period of the motion c) the frequency of the motion
asked by Anonymous on May 24, 2018 
Calculus
solid is formed by rotating the region bounded by the curve y=e−3x^2 and the xaxis between x=0 and x=1, around the xaxis. The volume of this solid is 3(1−e^−3). Assuming the solid has constant density , find x and y. I know that y bar must be 0.
asked by Terrence on October 27, 2011 
Math
How many subsets of a set with 100 elements have more than one element? The answer to your question is the number of all of the subsets minus the number of subsets with just one element. had do you find the perimeter and the area whats the measurment of b
asked by eric on March 8, 2007 
calculus
Consider the function f(x)=3x^2 – 5x on the interval [4,4]. Find the average slope of the function on this interval. By the mean value theorem, we know there exists at least one c in the open interval (4,4) such that f’(c) is equal to this mean
asked by john on March 16, 2012 
Statistics
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability of success on a single trial, n=9, x=2, p=0.35.
asked by Robin on August 25, 2014 
physics
Water flows through a horizontal tube of diameter 2.9cm that is joined to a second horizontal tube of diameter 1.5 cm. The pressure difference between the tubes is 7.2 kPa. A)Find the speed of flow in the first tube.
asked by jazz on December 4, 2011 
Calculus
Water is draining from a swimming pool in such a way that the remaining volume of water after t minutes is V = 200(50  t)^2 cubic meters. Find : (a) the average rate at which the water leaves the pool in the first 5 minutes
asked by Posul Sioni on May 8, 2016 
math
A cyclist bikes at a constant speed for 18 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 23 miles. Find his speed.
asked by john on July 23, 2012 
math
Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to make each bimonthly pay period (twice a month) at 6% compounded bimonthly, in order to pay off the loan.
asked by Lynda on December 3, 2013 
Moanalua Middle School
One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of yellow, then less than 4.
asked by Junior on May 18, 2012 
math
The acceleration am/s^2 of a particle moving in a straight line is given by a = 18t – 4, where t is time in seconds. The initial velocity of the particle is 2 m/s a) Find the expression for velocity in terms of t b) Determine the time when the velocity
asked by kudu on February 11, 2015 
physics
a block is pushed up against the wall. Let the mass of the block be m = 2.8 kg, the coefficient of kinetic friction between the block and the wall be µ = 0.56, and θ = 61◦ . Suppose F = 73 N. The acceleration of gravity is 9.8 m/s 2 Find the force of
asked by Anonymous on November 18, 2014 
nhps maths
the area of a rectangular field is 78 square metre.its length is 13m .find out its breadth.if it costs rupees55 per metre to fence the field,how much would it cost to fence the entire field?
asked by yuvraj on January 25, 2016 
Probability and statistics
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.n=22, x=18, p=0.85, q=.15
asked by Holly on March 22, 2016 
finding online article
I need help finding an article online. It has to be on biomedical engineering related or science related. And the article has to talk about 3D or 2D or 2.5D imaging methods. I found a 2D and 3D article. But I can't find one about a 2.5D imaging sensor or
asked by Anonymous on November 4, 2009 
physics
10 planks are required to stop the bullet in initial velocity u thickness of each planks is x and all planks are producing equal retardation find the final velocity of bullet after coming out of first plank
asked by deepica on August 26, 2015 
GEOGRAPHY
If it is 6 am at 30 degrees W, what time is it at 120 degrees W? Each 15 degrees of longitude encompasses about one hour of time. Divide the difference between 120 and 30 by 15 to find your answer. Does this mean to subtract 6 hours from 6 am making it
asked by Suzanne on October 11, 2006 
Math
Jacob bought a sandwich for $4.75, a small salad for $1.25. Jacob wrote the expression $4.75 + ($2.43 + $1.25) to calculate how much money he spent. Use the Commutative Property and the Associative Property to find how much Jacob spent.
asked by Anonymous on January 28, 2013 
Economics (Net Present Value
Approximately 14 million Americans are addicted to drugs and alcohol. The federal government estimates that these addicts cost the U.S. economy $300 billion in medical expenses and lost productivity. Despite the enormous potential market, many biotech
asked by Leo on September 7, 2015 
Econ Help if you can :P
Approximately 14 million Americans are addicted to drugs and alcohol. The federal government estimates that these addicts cost the U.S. economy $300 billion in medical expenses and lost productivity. Despite the enormous potential market, many biotech
asked by Sari on September 8, 2015 
math algebra
Paul Websters motorboat can travel 15 mph in still water. Traveling with the current of a river, the boat can travel 20 miles in the same time it takes to go 10 miles againt the current. Find the speed of the current.
asked by alms on April 23, 2013 
Chemistry
At 389K, this reaction has a Kc value of 0.0682. 2X(g) + 2Y(g) Z(g) .. Calculate Kp at 389K. Kp= this is what I did.. can somebody confirm or find any mistakes in my thought process? Kp = Kc(R)(T)^Delta n Delta n = (1)(2+2) = 3 Kp =
asked by Tracy on March 5, 2012 
Quant Reasoning
Stereo Inc. sells a stereo system for $300 down and monthly payments of $80 for the next 3 years. If the interest rate is 4.25% per year, find: a) The cost of the stereo. Answer = $ b) The total amount of interest paid. Answer = $
asked by Me on May 6, 2015 
physics
a 17 kg sled is being pulled along the horizontal snow covered ground by a horizontal force of 22 N. starting from rest the sled attains a speed of 1.9 m/s in 7.8 m find the coefficient of kinetic fiction between the runners of the sled and the snow.
asked by Sarah on June 25, 2013
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