
physics
A stone projected at angle alpha with plane inclined at angle theta find relation between alpha and theta if stone hit at right angke with the inclined plane?
asked by vaib on February 20, 2015 
physics
A 7.80g bullet moving at 520 m/s penetrates a tree trunk to a depth of 4.60 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. N (b) Assuming the frictional force is constant, determine how much time
asked by monic on October 10, 2012 
Trigonometry
My answer: Y= 82.5 cos (4pi/3)x+91.5 (Period: 1.5=2pi/b > b= 4pi/3 ) The diameter of the wheel is 165 feet, it rotates at 1.5 revolutions per minute, and the bottom of the wheel is 9 feet above the ground. Find an equation that gives a passenger's
asked by Anonymous on July 18, 2013 
physics
a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass
asked by jeff on November 21, 2009 
Chemistry
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 450C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at
asked by CHEMHELP..BOB on April 24, 2011 
Chemistry
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 450C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at
asked by CHEMHELP..BOB on April 24, 2011 
Physics
A ball on the end of a string is whirled around in a horizontal circle of radius 0.486 m. The plane of the circle is 1.83 m above the ground. The string breaks and the ball lands 2.39 m away from the point on the ground directly beneath the ball’s
asked by Emily on January 28, 2013 
Math
The total number of DVD videos produced and shipped in 1998 was .5 million. In 2004,the total number of units reached 29.01 million. Assuming the exponential model applies: a)Find the value of k and write the function b) Estimate the number of DVD videos
asked by Anonymous on January 26, 2011 
physics
A horse pulls a barge down a canal. The horse pulls on the rope with a force of 7900 N at an angle of 18 degrees to the direction of motion of the barge, which is heading straigt along the canal. The mass of the barge is 9500kg and its acceleration is
asked by Chris on November 13, 2006 
college physics
A ray of light traveling in air strikes the midpoint of one face of an equiangular glass prism (n = 1.50) at an angle of exactly 30 degrees. a)Trace the path of the light ray through the glass, and find the angle of incidence of the ray at the bottom of
asked by Cristina on July 31, 2010 
algeBRA WORD PROBLEM
six familys split the cost of a family reunion. each family also spends $65 for a hotel room. Each familys share of the cost of the party plus the cost of the hotel room totlas $160. write and solve and equation to find the cost of the reunion. i don't
asked by marko on October 20, 2011 
MATH ! plzz help
A wireless phone company charges a monthly fee of $39.99 plus $0.49 per minute for usage that exceeds the included minutes. Write an equation for the monthly cost 'c' in terms of the number of exceeded minutes 'm'.Solve the equation to find the cost when
asked by Maryam :) on October 28, 2012 
Physics
A ball on the end of a string is whirled around in a horizontal circle of radius 0.486 m. The plane of the circle is 1.83 m above the ground. The string breaks and the ball lands 2.39 m away from the point on the ground directly beneath the ball’s
asked by Allisa on January 28, 2013 
algebra
You can buy 1 child's ticket, 1 adult's ticket and 1 senior citizen's ticket for a minor league baseball game for $29. Tickets for adults cost 3 times as much as tickets for children. A family of 3 children, 2 adults, and 2 senior citizens pays a total of
asked by allison on October 9, 2017 
math
I need help to get started with writing the equation for the following problem: It takes a freight train 2 hours longer to travel 300 miles than it takes an express train to travel 280 miles. The rate of the express train is 20 miles per hour greater than
asked by fiona on April 1, 2010 
Math
Andrea received 4 orders, each for 2 tiles and 6 pieces of edging. Write an expression for 1 order. HINT: _______x^2 + _______ Write an expression for the 4 orders. ______(_____x^2 + ________) Use the distributive property to find the total of 4 orders.
asked by Anonymous on September 25, 2017 
physics
To tighten a bolt, you push with a force of 72 N at the end of a wrench handle that is 0.26 m from the axis of the bolt.What torque are you exerting? I GOT THIS PART AS 19N *m unsure of the next two: If you move your hand inward to be only 0.10 m from the
asked by Christie on March 3, 2012 
venn diagrams
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 29 said they drove alone. 25 rode in a carpool. 30 rode public transportation. 7 used both carpools and public transportation. 6 used
asked by Anonymous on October 22, 2013 
physics
The moon's diameter is 3.48 106 m, and its mean distance from the earth is 3.85 108 m. The moon is being photographed by a camera whose lens has a focal length of 48.5 mm. (a) Find the diameter of the moon's image on the slide film. (b) When the slide is
asked by Anonymous on April 17, 2014 
Algebra II
Find the solution if possible. If there is not enough information to solve the problem or if it has no solution, say so. If extra information is given, identify it. 14. A collection of 30 coins worth $5.50 consists of nickels, dimes, and quarters. There
asked by Emily on August 24, 2008 
math
Find the slope and the intercepts of each line. g(x)=54x1 x=3 Help please! :) g(x)=54x1 x=3 I am assuming that you are trying to determine the value of g(x) when x equals 3. If g(x)=54x1 , then g(3)=54(3)1 Evalute and you have your answer. No,
asked by Maria on September 23, 2006 
ALG 1
art A: Explain why we do not measure the rate at which water flows out through a shower head in cubic meters per second? In your explanation, use reasoning based on appropriate units to model this situation. (5 points) Part B: What are the two quantities
asked by ALGEBRA HELP PLEASE on September 16, 2014 
chemistry
Calculate the change in entropy (ΔS˚) of reaction (J/K) for the equation as written. BaCO3(s) → BaO(s) + CO2(g) Table: S° (J/(K mol)) BaCO3(s) = 112 BaO(s) = 70.3 CO2(g) = 213.7 So the answer is 41.7 I thought to find the entropy of reaction you
asked by Carter on February 23, 2013 
algebra 2
I am trying to factor the expression 8y^2+28y60 but can't get an answer that is correct. Here is an example of how the problem is supposed to be factored. If you have 21x277x28 the first thing you would do is (21x )(x ). Next you would find two numbers
asked by Kylee on September 8, 2013 
Physics
A rope which is 7 meters long is laid out on a horizontal table. (a) Assuming that the coefficient of static friction between the rope and the top of the table is 0.5, show that the rope will begin to slide if at least 3 meters of it hangs off the edge.
asked by Emily on November 24, 2015 
physics
a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass
asked by jeff on November 21, 2009 
Chem
Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an
asked by Aidan on August 29, 2011 
math
A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a certain item is given by P(x)=−0.05x2+500x−100,000, where P is in dollars and x is the number of units sold. 19a. How many
asked by Kenny on August 6, 2016 
Physics
1. A stroboscopic photo of a club hitting a golf ball, such as the photo shown in Figure 6.3, was made by Harold Edgerton in 1933. The ball was initially at rest, and the club was shown to be in contact with the club for about 0.0022 s. Also, the ball was
asked by justin on November 6, 2010 
statistics
Six cardsace, king, queen of hearts; ace, king of diamonds; and king of clubsare all placed face down a table. One card is to be selected at random. Find the probability: a) of an ace, given that a diamond was turned b) of an ace, given that a club was
asked by Anonymous on November 6, 2007 
math
dale placed six cARDS IN A BAG.QONE CARD IS LABELD 1,TWO CARDS ARE LABELD2,AND RTHREE CARDS ARE LABELD 3.FIND THE PROBABILITY OOF PICKING TWO CARDS IN THE ORDER OF THE NUBERS LISTED TH EFIRST CARD IS RETURNED BEFORE THE SECOND IS PICKED ..... P,(1,2)
asked by sam on May 22, 2007 
geometry
the height of a wall is 25 feet and an 8 x 20 rectangular door is positioned on the wall such as there is 8 feet of wall remaining on the right side and 4 feet remaining on the left side. Find the area of the wall to be painted. do not paint the door
asked by Anonymous on May 9, 2012 
math
The length of a rectangle is 10 feet more than twice its width. The perimeter of the rectangle is 170 feet. Find the dimensions of the rectangle. ANS: Length= 60 feet, Width= 25 feet I already know the answer, its in my review sheet. If someone can explain
asked by shelly on November 29, 2007 
physic
the light from a helium neon laser has a wavelength of 632 nanometers in air. the same light has a wavelength of 479.2 in glass. the frequency of the light is the same in air and glass. find the speed of the laser light in glass.
asked by gerl on August 31, 2016 
math
an isolation triangle has a base of 6 units and a height of 12 units. find the maximum possible area for a rectangle that is inscribed in the triangle and has one side resting on the base of the triangle. what are the dimensions of the rectangle of maximum
asked by Anonymous on November 12, 2015 
Math
A single card is drawn from a standard deck of cards. Find the following probabilities. A face card is a jack, queen, or king. P(face card  queen) ________ P(king  face card ________
asked by Bes on September 9, 2011 
Physics  Matter
The buildup of plaque on the walls of an artery decreases its diameter from 1.1 cm to 0.60 cm. If the speed of the blood flow is 0.15 m/s before reaching the region of plaque buildup, find the speed of blood flow within the plaque region. [3 marks]
asked by Madeleine on April 11, 2012 
ALGEBRA
The size of a television is given by the length of the diagonal of the screen. The ratio of the height to the width of wide flatscreen TV is 8:15. Find expressions for the width and height of a widescreen TV in terms of the length of its diagonal.
asked by Sandra on May 14, 2014 
Physics
A proton, moving with a velocity of vii, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 1.50 times the speed of the proton initially at rest, find the
asked by Dance Queen on April 10, 2016 
algebra
The power P needed to propel a boat is directly proportional to the cube of the speed of the boat. A 100 hp engine is needed to propel a boat at 15 knots. Find the power needed to drive the boat at 20 knots.
asked by Jeremiah on March 10, 2011 
precalc pre ap
If theta is a rotation angle that terminates in quadrant ll and sin of theta is 5/13, find cos of theta and tan of theta. Use the first Pythagorean identity to solve for cos of theta and use quotient identity to solve for tan of theta.
asked by lore on December 2, 2012 
math 114
A store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. The mixture is to sell for $13 per pound. Find out how much of each should be used to make a 588 pound mixture. How many pounds of the Kentucky bluegrass should be in
asked by David on April 4, 2013 
Math
Mathematicians have been searching for a formula that yields prime numbers. One such formula was x2  x+41. Select some numbers for x, substitute them in the formula,and see if prime numbers occur. Try to find a number for x that when substituted in the
asked by Jean on December 17, 2010 
physics
A truck starts from the rest and moves with a accelaration 1.5m/s^2 ,at the same time a car which is 150m behind the truck starts from the rest with an accelaration of 2m/sec^2. Find the time which the car will overtake the truck and the distance travel.
asked by Afreed on September 20, 2015 
Math Help
Suppose that each student in stat. has a 9% chance of missing class on any given day and that student attendance is independent. In a stat. class of 20 students, find the probability that: 1) no student is absent 2) one student is absent 3) three student
asked by Chris on April 8, 2013 
Business and Personal Law
So I have a project and I need help on finding a court case for Retirement/Wills. The court case has to be Interesting,Unusual,Funny, Outrageous/Frivolous, Or, all of the above. Do you know where to find any interesting cases or know any cases that is
asked by Olivia on February 12, 2019 
Can no one help?!
1. Use cylindrical shells to compute the volume of the solid formed by revolving the region bounded by y= 2x and y = x^2 3 about x= 6. 2. Find the volume of the solid formed by revolving the region bounded by y= e^x , y= e^x, and y= 3 about y= 5. I'm
asked by Mia on March 2, 2011 
physics
In a rescue, the 64.0 kg police officer is suspended by two cables,the cable on the left made a 35 degree angle, the rope on the right made a 48 degree angle. What is the tension in the left cable? Find the tension in the right cable.
asked by Erin on February 27, 2008 
trig
The angle of elevation from a point on the ground to the top of a tree is 38.7 degrees. The angle of elevation from a point 27 ft farther back to the top of the tree is 22.9 degrees. Find the height of the tree to 2 decimal places.
asked by jake on November 9, 2015 
Calculus
A spinner is used for which it is equally probable that the pointer will land on any one of six regions. Three of the regions are colored red , two are colored green, and one in colored yellow. If the pointer is spun twice, find the probability it will
asked by John on December 10, 2007 
Algebra
A store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. The mixture is to sell for $13 per pound. Find out how much of each should be used to make a 588 pound mixture. How many pounds of the Kentucky bluegrass should be in
asked by Jon on March 5, 2013 
algebra
This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
asked by Kris on October 13, 2014 
algebra,
This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
asked by lashunda on October 20, 2015 
math
In 2009, there were 12 million fewer acres of farm land in Arizona than there were in 1980. If the sum of acreage for these two years is 64 million acres, find the number of farm land acres in Arizona for each of these years.
asked by tee on March 14, 2013 
math
Three pupils John, Daniel and David contributed a total of $400 for a party. John contributed $30 more than Daniel while, David contributed three times as much as John. If David contributed $x, write the equation can be used to find David's contribution?
asked by kudu on January 31, 2015 
Math
You are measuring walnuts for banana walnut oatmeal and a spinach and walnut salad. You need 3/8 cup of walnuts for the oatmeal and 3/4 cup of walnuts for the salad. You have a 1/4cup scoop. Describe two different ways to find how many scoops of walnuts
asked by Jessica on November 5, 2014 
math
Find the lateral and surface area of the right rectangular prism whose length is 7 cm, width is 5 cm, and height is 1.5 cm. I think the answer is 36 for lateral area and 106 as surface area. I made a formula, 2(7 x 1.5 + 1.5 x 5)) and I got 36. Then I made
asked by keisha on November 12, 2007 
math
10. I am a number between 7 000 000 and 8 000 000. All my digits are odd. All the digits in my thousands period are the same. All the digits in my units period are the same. The sum of my digits is 31. What number am l? Give as many answers as you can.
asked by gitanjli on October 8, 2015 
Math2(Reiny Please Help)
The safe stopping distance, d, in metres, of a Harold Dobson motorcycle on wet pavement is given by the function d(s)= 0.02(3s^2 + 20s), where s is the speed of the motorcycle in metres per second. Find the speed at which the safe stopping distance is 50
asked by Heaven on May 17, 2016 
math
We have a circle that has 270 degrees listed outside the circle at the top left. Inside the circle at the bottom right side is a an angle inside the circle with a P. Find the measure of Angle P. Would this be that we take 360270 to get the measure of
asked by m on December 7, 2010 
math 1
This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
asked by Anonymous on February 27, 2018 
physics
At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 291 N/C. At a distance r2 from the charge, the field has a magnitude of 165 N/C. Find the ratio r2/r1. I divided 165/291 and got .567
asked by Naomi on February 13, 2016 
Check answers please Statistics
Suppose that each student in stat. has a 9% chance of missing class on any given day and that student attendance is independent. In a stat. class of 20 students, find the probability that: 1) no student is absent =15.16 2) one student is absent =30 3)
asked by Chris on April 8, 2013 
Algebra 2
Using data for the effect of temperature and wind on an exposed face, the National Weather Service uses the following formula, Wind Chill Index = 35.74 + 0.6215𝑇 − 35.75𝑉!.!" + 0.4275𝑇𝑉!.!" 𝑇 is the temperature in degrees Fahrenheit and
asked by Jim on May 1, 2015 
physics
A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 22.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 8.0 min to find the report, after which the
asked by USC on August 31, 2011 
calculus
A firework is launched at the rate of 10 feet per second from a point on the ground 50 feet from an observer. To 2 decimal places in radians per second, find the rate of change of the angle of elevation when the firework is 40 feet above the ground. Type
asked by emma on April 20, 2015 
Physics 1
Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s at point A. Find the
asked by John on October 8, 2012 
Physics
A 60.5kg person, running horizontally with a velocity of +3.76 m/s, jumps onto a 10.4kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. m/s (b) The
asked by Xavier on October 24, 2010 
Math algebra
To find the average of a set of test scores we divide the sum of the test scores by the number of test scores. On her first four algebra tests,Paula wests scored 88,92,97,and 96. Write an equation that can be used to determine the grade paula needs to
asked by Serena on November 10, 2016 
Physics
Suppose that you are at the top of a (rigid) rocket which is half a light year tall. If the rocket is accelerating such that your proper acceleration is 1g, What is the proper acceleration at the bottom of the rocket? B = F c2 c2 F : This is one of
asked by Ian on September 5, 2010 
Statistics
The average amount of time people spend on facebook each day is 71 minutes, with a standard deviation of 4.7 minutes. Are you more likely to select a random person that spends less than 68 minutes per day, or a group of 35 people that spend on average less
asked by Ashley on November 15, 2012 
physics
A 60.0 kg person, running horizontally with a velocity of 3.80 m/s, jumps onto a 12.0 kg sled that is initially at rest. a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. b) The sled and
asked by aithusa20 on September 29, 2014 
Physic
A point charge q1=8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance of 0.2m from the orgin on the positive xaxis, and a third charge q3=12nC is located at a distance of 0.2m on the positive
asked by Nikki on March 14, 2012 
physics SHM
A particle is moving with SHM of period 16s and amplitude 10m. Find the speed of the particle when it is 6.0m from its equilibrium position. First I found the value of w: w= 2 pi/ T = 2 pie/ 16 =0.393 s^1 Then I used: v= +/ w root a^2  x^2 = +/ 0.393
asked by Claire on December 28, 2007 
math
A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a certain item is given by P(x)=−0.05x^2+400x−100,000, where P is in dollars and x is the number of units sold. a. How many
asked by seb on August 5, 2016 
RepostPhysics 1
Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s at point A. Find the
asked by John on October 9, 2012 
Math
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p
asked by Anonymous on March 30, 2015 
Physics
Meteorologists track a storm using radar. The radar shows a storm centered 30km west of town. Ninety minutes later, it's 30km north of town. Let the +xaxis point east and the +yaxis north. Assuming the storm moved with constant velocity, find that
asked by Marcus on February 4, 2014 
Statistics
In a shipment of 21 parts, four of the parts are defective. If three parts are selected at random without replacement, find the probability that : a.) All three parts selected are defective. 4/21*3/20*2/19=.003 b.) None of the tree parts selected are
asked by Grace on February 26, 2016 
Calc
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p
asked by Anonymous on March 30, 2015 
Algebra 2
How do you set up this?I am lost Find an equation for the linear model of the situation below and use it to make a prediction. A train is traveling north at a constant rate. At 3:00 P.M. it is 55 miles north of a city. At 4:15 P.M. it is 80 miles north of
asked by JOY on October 12, 2011 
math
An Lshaped concrete slab being prepared for the foundation of a new house is made up of two rectangles with dimensions 3 m by 2 m and 10 m by 6 m. a) Find the total area of the concrete slab. Total area = (3*2) + (10*6) = 66m^2 b) If two bags of cement
asked by anonymous on February 11, 2018 
Precalculus
The Downhill Ski club is organizing a ski trip. Group tickets for the ski trip are priced at $20 for the first 100 skiers and a discount of $5.00 per ticket for each of the skiers over 100. a) write a formula to find the cost of x skiers. Answer:
asked by Elli on December 22, 2011 
algebra 2
Consider the exam data below. Algebra score: 20 35 13 29 40 23 Calculus score: 41 69 34 72 86 58 Use your calculator to find the regression line for this data, and graph it on your scatterplot. b. Interpret the slope and intercepts of this line in the
asked by Rachel on July 5, 2013 
Maths
A circus artist drops a ball from a high wire. The ball takes 1.5 seconds to reach the ground. I) Find the height of the height of the high wire above the ground. II) Write an expression for the speed of the ball t seconds after being dropped where 0
asked by John B on November 17, 2016 
College Algebra
Here is the whole question... I have figured most of it out but I need help with part (b)(f) and (g)... Maybe you also check the work I have already done Given the following function, find: (a) vertex, (b) axis of symmetry, (c) intercepts, (d) domain, (e)
asked by Sunny on January 4, 2012 
Physics
1. Crane with a weight on the hook of it. Find the upward force of the rear wheels given the centre of gravity a. Length of arm of crane (30m), weight of object on hook (in N), height (3.5m), length of crane (10m) 2 the centre of gravity which was 7m from
asked by Alex on February 23, 2019 
statistics
A company director took a sample of salaries of 13 employees in a big school during a certain time. she divided the wages into three groups according to the different jobs: teachers, assistants and coordinators as displayed in the table below. She wanted
asked by donna on May 27, 2014 
Physics
A uniform magnetic field points north; its magnitude is 3.5 T. A proton with kinetic energy 6.0 × 1013 J is moving vertically downward in this field. What is the magnetic force acting on it? This is what I've done. The answer is incorrect. Please help me
asked by Sar on September 22, 2010 
Cybersafety, Really Please Help Me! :(
2. Which of the following is a sign that a website is inappropriate? •It contain information that you find embarrassing???*****??? •It advocates for a particular political position in a respectful way. •It sells products •It offer information about
asked by Mindy on March 6, 2014 
LA 7
Which statement from "Why Do We Need Zoos?" best captures the author's point of view? 1. "...zoos were open to the general public, too, so everyone could find out about animals." 2. "Some people feel that there is lots of wild space and that animals should
asked by Cool on April 26, 2016 
physics
Find the minimum diameter of a 51.5mlong nylon string that will stretch no more than 1.01 cm when a load of 68.9 kg is suspended from its lower end. Assume that Ynylon = 3.51·10^8 N/m2 physics  bobpursley, Saturday, October 29, 2011 at 10:32am Hookes
asked by maria on October 30, 2011 
English
Yes, it's correct. Thank you very much. I urgently need you to check this paragraph. 1) Here below you can find the list of the students you sent me. I pair each of your students with an Italian partner for the email partnership. 2) You should send me as
asked by Mike1 on April 22, 2012 
Physics
A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 5.14 m/s 2 . She decides to test the car by drag racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 0.78 s
asked by Tre on October 3, 2013 
Magnetic Field Forces: Physics
A uniform magnetic field points north; its magnitude is 3.5 T. A proton with kinetic energy 6.0 × 1013 J is moving vertically downward in this field. What is the magnetic force acting on it? This is what I've done. The answer is incorrect. Please help me
asked by Sar on September 22, 2010 
physics
The type of rubber band used inside some baseballs and golf balls obeys Hooke's law over a wide range of elongation of the band. A segment of this material has an unstretched length l = 1.50 m and a mass m = 5.6 g. When a force F = 17 N is applied, the
asked by nadre on December 25, 2010 
physics
A ball on the end of a string is whirled around in a horizontal circle of radius 0.33 m. The plane of the circle is 1.26 m above the ground. The string breaks and the ball lands 2.4 m away from the point on the ground directly beneath the ball’s location
asked by cd on October 5, 2014 
Physics 203
A 2.4 m long rod of mass m1 = 11.0 kg, is supported on a knife edge at its midpoint. A ball of clay of mass m2 = 5 kg is dropped from rest from a height of h = 1.1 m and makes a perfectly inelastic collision with the rod 0.9 m from the point of support.
asked by Kayla on April 13, 2011 
Algebra
Can you please help on this Algebra problem? Keana's piggy bank contains $4.30 in nickels and dimes only. If she has 59 coins in her ban, then what is the sum of the digits in the number of nickels in Keana's bank? Write a system of equations for this
asked by Leroy on December 10, 2016 
Fib. Number
I noticed someone else is having problems with the same problem below that I am. Since I have a Matt in my class he is having the same problem I am and could use some help. Fib. numbers are not in my math book and I cannot find any help online with these
asked by Scott on October 2, 2011
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