
Physics
The man pushes/pulls with a force of 200N. The child and the slide combo has a mass of 30 kg and coefficient of friction is 0.15. The angle between the slide and the ground is 30 degrees. Find the acceleration of the child and what is the frictional forces
asked by Thokozanitausi on January 10, 2017 
math
Algebraically analyze the graph of the function f(x)= 6x^2+5x+2 . Find the vertex, axis of symmetry, range, minimum or maximum value, increasing and decreasing intervals, and zeros. Write the Quadratic equation in standard form. [Standard form is:
asked by shannon on September 30, 2008 
financial accounts
sandeep purchased a machinery for 21000 on 1 January 2001. the estimated life of the machine is 10 years after which its residual value will be 1000 only.find out the amount of depreciation and prepare machinery account for the first three years according
asked by medi on January 24, 2015 
algebra
A pilot heading his polane due north finds the actual direction of travel to be 5.2 NE. The planes's air speed is 315 mi/h, and the wind is from die west. Find the plane's ground speed and the velocity of the wind.
asked by Arielle on November 2, 2011 
Calculus AB
So the problem is "For x>0, d(lnx)/dx = 1/x and lne=1. A) find the tangent line approximation for ln 3 B) calculate the %error in approximation in part A. My teacher said the answer for part A is that 1/e, and I'm pretty confused. So far I the given info
asked by Annie on January 30, 2017 
Geometric Progression
A mortagge is taken out for $10,000 and is repaid by annual installments of $2,000. Interest is charged on the outstanding debt at 10%, calculated annually. If the first repayment is made one year the after the mortagage is taken out, find out the number
asked by Math on September 25, 2012 
math
If someone can explain how to do this problem so I can learn and understand. you have a sample of 50 people. Based on the histogram, find the proportion of weight loss values in the sample that are less than 10 pounds. Write your answer as a decimal, and
asked by Mary Ann on February 9, 2015 
physics
A man claims he can safely hold on to a 14.20 kg child in a headon collision with a relative speed of 132. mi/h lasting for 0.100 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child
asked by Anonymous on October 22, 2012 
Statistics
find the 90% confidence interval for the variance and standard deviation of the ages of seniors at Oak Park College if a sample of 24 students has a standard deviation of 2.3 years. Assume the variable is normally distributed. Can someone explain the steps
asked by Diandra on October 26, 2010 
Inventor
Does anybody know a VERY imformative sight about James T. Russell? Search his name on google and you can find some websites. I think the first one is kinda good. I was searching for a specific site. web.mit.edu/invent/iow/russell.html This seems to be a
asked by kaylmur on October 22, 2006 
physics
A man claims he can safely hold on to a 11.90 kg child in a headon collision with a relative speed of 117. mi/h lasting for 0.140 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child.
asked by lib on October 15, 2012 
College Algebra
A rancher needs to build four identical pens for his animals as shown in the diagram below. He has 240 feet of fencing. He does not need to put the fence along the barn. Find the length and width that would maximize the area of the pens. What is the
asked by Cruz on April 28, 2014 
general physics
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 6.3 x 1028 kg and 1.6 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 107 m3) were made from this
asked by please help with these practice problems on July 20, 2013 
Physics
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I still get 0.315 m as the
asked by Lindsay on December 9, 2007 
math
Q2. An agriculture field is rectangular,with dimensions 100m by 42m.A 20m deep well of diameter 14m is dug in acorner of the field and the earth taken out is spread evenly over the remaining part of the field. Find the increase in the level of the field.
asked by tarekegn on May 13, 2015 
PHYSICS!!!
A boat moves at 7.00m/s relative to the water. (You can neglect relativity at these slow speeds.) The boat travels 100 m downstream and then 100 m upstream, returning to its original point. Find the time for the round trip
asked by Amy on April 3, 2014 
Math
A farmer uses 1034 meters of fencing to enclose a rectangular region and also to subdivide the region into three smaller rectangular regions by placing a fence parallel to one of the sides. Find the demensions that produce the greatest enclosed area.
asked by Jackie on February 10, 2013 
physics
A man claims he can safely hold on to a 14.20 kg child in a headon collision with a relative speed of 132. mi/h lasting for 0.100 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child.
asked by Anonymous on October 21, 2012 
Physics
A bullet is fired vertically upward with an initial velocity of 98m/s from the top of a building 100m high, find a) the maximum height reached above the ground b) the total time before reaching the ground. C) the velocity on landing.
asked by Clement on December 22, 2014 
physics 1
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 107 m3) were made from this
asked by Anonymous on April 22, 2014 
algebra
Ok my math assignments look something ike this... The formula I=prt gives the amouunt of simple interest I earned by principal p at an annual interest rate r over t years. Solve this formula for p. B. Find p if r=0.035, t=4, and I=$420. c. Writing.. That
asked by K8T on October 28, 2008 
physics please help
the floors in a typical house are separated by a vertical distance of approximately 8.0 ft. a teenager (1.0x 10^2 lb) climbs the stairs between floors at a steady speed. find the power necessary to accomplish this if the stairs are climbed in (a) 10.0 s
asked by taylor on February 24, 2012 
statistics
Scores on a certain test are normally distributed with a variance of 91. A researcher wishes to estimate the mean score achieved by all adults on the test. Find the sample size needed to assure with 95.44 percent confidence that the sample mean will not
asked by vina on June 25, 2011 
chemistry repost
help, i'd like to know how to do this titration question: for example: a 1g sample of naoh contaminated with na2co3 is titrated with 0.500MHCl, and it is found that 46.5mL of HCl are required for neutralization. Find the percentage by mass Na2Co3. ( i did
asked by alex on April 21, 2008 
solid mechanics
A round bar 40 mm dia meter is subjected to an axial pull of 80 kn and reduction in diameter was found to be 0.00775mm.find poisson's ratio and young's modules for the material of the bar. take value of shear modules as 40kn/mm square.
asked by sushil on July 25, 2013 
7th grade math
Sally makes an ice cream sundae. She can choose from vanilla, chocolate, or strawberry ice cream, fudge or caramel topping, and sprinkles or nuts. Write an expression to show how to find all the different combinations. I'm not sure how to do this. Any help
asked by hunter on March 29, 2011 
Fisher projections
Is there a good tutorial that you know of on Fisher projections? My book isn't helpful. Thanks from Sheryl http://www.bluffton.edu/~bergerd/Models/chiral6.html I don't have the right plugin for this lesson and I can't find it. Is there another tutorial
asked by Sheryl on November 1, 2006 
Physics 11 damon pls URGENT!
The coefficiant of friction between rubber tires and wet pavement is 0.5, and the breaks are applied to 750kg car, intitally travelling at 30m/s and the car skids to a stop. What is size and difection of the acceleration. How do i find acceleration of the
asked by Jaena MacCharly on October 31, 2016 
Calculus
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 16x on the interval [−1, 1]. If so, find the xcoordinates of the point(s) guaranteed to exist by the theorem. f(a)=15 f(b)=15 f'(x)=3x^216 f'(c)=15 I am now lost
asked by Louis on April 3, 2017 
Physics equation?
can anybody tell me an equation that can be used to find the number of electrons flowing through an LED every second? and also refer or give me any information that could explain another mechanism (apart from the fact that they denote energy to a single
asked by AllyKat on February 11, 2008 
Algebra
The volume in cubic feet of a box can be expressed as (x)=x^36x^2=8x￼ , or as the product of three linear factors with integer coefficients. The width of the box is x2. Factor the polynomial to find linear expressions for the height and the
asked by Ciaria on March 17, 2015 
Math
an agriculture field is rectangular with dimensions 100m by 42m. A 20m deep well of diameter 14m is dug in corner of field and the earth taken out is spread evenly over the remaining part of the field .find the increase in the level of the the field.
asked by Ephrem Tsegaye on May 6, 2019 
Statistics
According to one survey, the mean serum cholesterol level for U.S. adults was 195.1, with a standard deviation of 41.5. A simple random sample of 95 adults is chosen. Find the 46 percentile for the sample mean. Write only a number as your answer. Round to
asked by Tommy on October 6, 2015 
PHYSICS
block 3M slides downward without friction. The string connecting blocks 3M and M is ideal (that is, its mass can be neglected and it is not stretchable). The pulley, a uniform solid disc of mass M and radius r , rotates without slipping. Find the
asked by Ramana on December 6, 2013 
College physics
Open Question: Two equal point charges of 5 µC are on the horizontal axis. One charge is at 10 cm, the other is at +10 cm.? These two charges don't move, they are STUCK, take the potential to be zero at infinity. Find the potential at the following
asked by Julie on March 3, 2013 
plz explain or translate this question!!!
How were things resolved? what does this sentence mean? how do you write your answer for this Q? The sentence means there were two or more differing opinions, measurements or explanations about something. You are supposed to find out which is correct, or
asked by ashlee on December 7, 2006 
trigonometry
hello fellas ... please help me with this,a farmer cooperator in an agricultural research wishes to fence the field in the form of right triangle. if one angle is 30° and the hypotenuse is 100m. find the cost of the fencing of the field if each meter of
asked by scheyd on January 31, 2018 
Math
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the measure of x in the triangle. Show all your work. This is for the connexus test Essential Tools of Geometry Unit Test Part 2
asked by Bella on May 3, 2019 
business ,media
I have a coursework,and i was asked to write,the KEY FACTORS OF SUCCES,in a industry,which in case it happens to be the television industry.I need to write what we as the customers want from the tv,then we need to find out how the company can achieve the
asked by orhidea on November 13, 2007 
Math
URGENT! an artist intends to paint a 60squarefoot mural on a large wall that is 18 ft wide and 11 ft tall. find the dimensions of the mural if the artist leaves a border of uniform width around it. Pls show me how'd you get your answer
asked by Laveeh on April 26, 2016 
Physics
In the figure, a small 0.458 kg block slides down a frictionless surface through height h = 1.05 m and then sticks to a uniform vertical rod of mass M = 0.458 kg and length d = 2.70 m. The rod pivots about point O through angle θ before momentarily
asked by Jezz on November 17, 2013 
Chemistry
How much carbon dioxide is produced upon the complete combustion of 17.3L of propane (approximately content of one 5gal tank)? Assume that the density of the liquid propane in the tank is 0.621 g/mL. Can you please list the steps! I am really confused! I
asked by Maira on November 2, 2015 
History
Hi i am doing a movie review on the film documentary "The Last Days" by James Moll. Could you help me find any footage from the film? or useful info. Also, could you give me some feedback on the following; "Why is it important for history students to learn
asked by Carol M on April 6, 2008 
BIO PLEASE HELP!
Identify the Protist and explain why you think it is what you said. We took dead leaves from outside, put them in boiling water then looked at them a week later. Link to image below! LINK: postimg. org/image/gu1201se9/ Ive attempted to look everywhere but
asked by Jen on May 13, 2016 
calculus
A traveller employs a man to drive him from Sydney to Melbourne. Running costs of the car, which are also paid by the traveller, are k*v^3 dollars per hour, v is the speed and k is a constant. Find the uniform speed that will minimize the total cost of the
asked by jim_segs on November 17, 2013 
AP World Civilizations
"The Protestant Reformation and the CounterReformation" Describe the religious division of Roman Catholicism and Protestantism geographically. Remember that the Lutheran and Calvinist faiths are Protestant as is the Church of England. Help!?!?! This is my
asked by Kiley on February 16, 2009 
math
a car weighing 15000N rounds a curve of 60m. radius banked at angle of 30 degrees.find the frictional force acting on the tires when the car is travelling at 100kph.The coefficient of friction between the tires and the road is 0.90.
asked by randy on February 23, 2013 
math
Following are the lengths in yards of the nine holes of the University Golf Course: 480,460,450,380,360,350,330,180,160 Find each of the following measures with respect to the lengths of the holes: d. Standard deviation 36.07263
asked by is this right!!! on June 16, 2009 
Physics
A400 N child is swing that is attached tow ropes 2m long , find the gravitational potential energy of the childearth system relative to the red line level when ropes make an angle with the vertical .
asked by Mariam on December 4, 2013 
SQL PROGRAMMING INFORMATION SYSTEMS
In the following SQL query why do they have an independent letter then period then the table name? I seemed to have missed something in the reading and cannot find it for the life of me SELECT D.DNAME, E.ENAME FROM DEPT D LEFT OUTER JOIN EMP E ON D.DEPTNO
asked by Phil on November 18, 2015 
physics
A satellite is orbiting around a planet. its velocity is found to depend upon a.)Radius of orbit b.)mass of planet c.)universal gravitational constant(G) Using dimensional analysis find an expression relating orbital velocity to the above physical
asked by sahstra kishore on April 25, 2016 
Eng. Dynamics
A fire fighter is standing 20 m from a burning building as shown. She is holding a fire hose 1 m from the ground directed upward at 60° from horizontal with water coming out of the nozzle at 20 m/s. Find the distance from the edge of the roof to where the
asked by Pat on January 23, 2011 
Biology
Describe four ways that plants protect themselves from environmental conditions using one example from each of the following categories: a. hormone b. tropism c. plants structure d. plant process In your answer be sure to include the specific threat and
asked by Michelle on March 11, 2008 
Chemistry
I'm trying to do a lab, and I need to find the concentration of FeSCN+2 in five solutions based the calibration curve and the absorption. I have a calibration curve, the number of mLs and initial moles of Fe+3 and SCN, the transmittances, the
asked by Felliax on February 11, 2008 
Physics
Suppose the magnitude of the "drag force" acting on the falling object of mass m is Dv2. Find the expression for the magnitude of the terminal velocity of this object. (Use any variable or symbol stated above along with the following as necessary: g. Do
asked by Name on February 21, 2014 
hello reiny damon steve can you help me physics
Find the Gravitational potential at a point on the earth's surface. Take mass of earth as 5.98*10^24kg, it's radius as 6.38*10^6m and G=6.67*10^11Nm^2kg^2. Plz i need sir damon and steve including reiny to show me step and solution plz
asked by danu on May 8, 2017 
physics helpppp!!
The 2nd harmonic of a string of length 40cm and linear mass density 1.11g.m has the same frequency as the 5th resonance mode of a closed pipe of length 1.4m. Find the tension in the string. use 340 for speed of sound
asked by joey on February 16, 2012 
Algebra
Mr. tan makes monthly visits to his parents in Malacca a distance of 240 km from Singapore. he finds that if he increases the average speed by 10km/h, he could save a total of 20min for the journey. find the original speed of Mr. tan.
asked by Azeem on March 21, 2017 
College Physics
A welder using a tank of volume 1¡Ñ10−2m3 fills it with oxygen (with a molar mass of 32.0g/mol ) at a gauge pressure of 1.4¡Ñ105Pa and temperature of 37.0∘C. Find the initial mass of oxygen. R=8.314m3PaK1mol1. The answer¡¦s unit is g.
asked by Desperate Student on March 26, 2016 
Business Math Please Help me
A monopoly has a total cost function C = 1000 + 108x + 12x^2 for its product, which has demand function p = 324 − 3x − 2x^2. Find the consumer's surplus at the point where the monopoly has maximum profit. (Round your answer to the nearest cent.) Thank
asked by Scarlett on April 26, 2015 
medical
this is not homeowrk for school it is homeowrk for me. I am having my gallbladder out friday and i also have IBS where can i find information on a diet to follow after surgery so i do not have to deal with bad IBS for the rest of my life.i know i can not
asked by alley on October 10, 2007 
Algebra
Find the area of the irregular figure (use 3.14 for pi). SHow your work. Round to the nearest tenth. Triangle with a semicircle on it. The triangles height is 4.8ft and the circle's diameter is 3.6ft. Every time I do my work I keep getting 12.3 and I have
asked by Baby_Banana on April 4, 2018 
Statistics
The following are Exam scores for a group of Mathematics students. a) Group this data by using the Sturges’ formula to determine the number of classes. Keep the width of each class equal. b) Find the mean, standard deviation and variance of the grouped
asked by Fala on October 30, 2015 
Calc 3
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the
asked by Anon on November 23, 2016 
statistics
A simple random sample of students is selected, and the students are asked how much time they spent preparing for a test. The times (in hours) are as follows: 1.3 7.2 4.2 12.5 6.6 2.5 5.5 Based on these results, a confidence interval for the population
asked by Brian on November 30, 2014 
PLEASE CHECK OPERATIONS WITH FRACTIONS
1. 619.5 km=__m A, 0.6195 B, 61.95 C, 61,950 D, 619,500*** Write the metric unit that makes the statement true. 2. 5,941 mm= 5.941__ (1point) A, m*** B, km C, cm D, dm Use benchmarks to estimate the sum, difference, or product. 3. 1 7/8+1/9 A, 0 B, 1 C, 2
asked by Connexus plz help on November 2, 2016 
Math
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the
asked by Anon on November 23, 2016 
physics
A (10.25) kg bowling ball is hung on a (11.50) m long rope. It is then pulled back until the rope makes an angle of (39.0) degrees with the vertical and released. Find the speed of the ball is at the lowest point. Give your answer in m/s and with 3
asked by l on February 25, 2017 
mathIS MY ANSWER RIGHT?
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the
asked by Anon on November 23, 2016 
Algebra
Monthly Budget: You earn $250 per month from your parttime job. You are in a kayaking club that costs $20 per month, and you save at least $100 each month. Write and solve an inequality to find the possible amounts you have left to spend each month.
asked by Stefanie on October 9, 2011 
College Algebra
An object is projected vertically upward from the top of a building with an initial velocity of 112 ft/sec. Its distance s(t) in feet above the ground after t seconds is given by the equation s(t) = −16t^2 + 112t + 100. (a) Find its maximum distance
asked by Kyle on November 12, 2014 
project management
You find a problem in a project. The project has a defined baseline and task progress has been entered for all tasks for the first report period. The ACWP field show the right cost for the work reported, but the BCWP and BCWS fields are zero. what could be
asked by Matthew on November 16, 2008 
Math
Samantha is going to buy a new Dodge Saturn for $20800. After a 5% downpayment the dealership will offer a loan for the remaining value of the car at 3.25% APR for 4 years. Round all answers to the nearest penny. Use Web Loan Calculator to find some of
asked by Tyreice on March 30, 2017 
Calc
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the
asked by Anon on November 23, 2016 
Math
Determine whether each event is impossible, unlikely, as likely as not, likely or certain. Then tell whether the probability is 0, close to 0, 1/2, close to 1, or 1. Spinning a spinner that has 5 equal sections marked 1 through 5 and landing on an even
asked by Patrick on March 27, 2018 
physics
An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 5.91 units of weight. The numerical values given in the figure all have
asked by john hide on April 11, 2018 
Physics :(( help please TT
Consider a fivepointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent resistance in Ohms between the points A and B. Details and assumptions Note: Points ABCDE are labeled for easy reference if you need to
asked by OIan on April 23, 2013 
PreCalc
A card game uses a pack of 24 cards, consisting of ace, king, queen, jack, 10, and 9 in each of the four suits spade, hearts, diamonds and clubs. A hand consist of 6 cards. Find the probability a hand includes all four aces.
asked by Peggy on April 23, 2012 
geometry
Sam went to the park and saw a work crew putting in a square garden. She found a tape measure that was stretched between opposite corners with a measurement of 171.1 feet and decided to find the area. What is the area of the square in yards?
asked by beck on May 19, 2013 
Geometry
find the surface area of a right cylinder with a diameter of 4cm and a height of 6cm. Round to the nearest hundredth. Book answer is 100.53cm^2 I came up with 150.79cm^2 my work: 2rr(4)6)=150.79cm^2 What did I do wrong??
asked by mary on April 18, 2011 
6th /7th grade science
i have 2 daughters which are in 6th/7th grade, both of them have 1wk left to turn in their science projects.I have been looking with them to find a good one but haven't been succesful,maybe due to this is my first time doing one with them.My income at the
asked by mary on January 22, 2010 
Hydraulics and hydrology
Please i need help. QUESTION=Water flows through a pipe of diameter 300mm with a velocity of 5m/s.If the coefficient of friction is given by f=(0.015/1) + (0.08/RE^0.3). Where Re is the Reynoid number. Take kinematic viscosity of water as 0.01stoke. *Find
asked by Ekingdeft Omamode on February 5, 2016 
health
i was wondering whether anyone came accrossa fascinating storiy in a newspaper or magazine recently about somethin unbelievable related to health. I have to facilitate a discussion in my life ed class about a health topic and i thought i would find an
asked by sammi on October 14, 2009 
Statistics
According to one pollster, 48% of people are afraid of flying. Suppose that a sample of size 20 is drawn. Find the value of standard error , the standard deviation of the distribution of sample proportions. Write only a number as your answer. Round to two
asked by Obi on October 18, 2015 
emergency physics
The 2nd harmonic of a string of length 40cm and linear mass density 1.11g.m has the same frequency as the 5th resonance mode of a closed pipe of length 1.4m. Find the tension in the string. use 340 for speed of sound
asked by joe on February 15, 2012 
English
Thank you very much. I still find it difficult to rephrase this sentence: Macbeth says that if he must know his deed, than (?) it would be best to lose all knoweledge of himself. Does it mean that "he would rather lose knowledge of himself than acknoledge
asked by Henry2 on October 1, 2011 
physics
An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 4.92 units of weight. The numerical values given in the figure all have
asked by JOHN on March 26, 2012 
Biology
Ok i have three questions that i can't find anywhere... 1. Carbon dioxide and water are excreted here during exhalation. 2. Structures in the skin which excrete water. salts, and some urea. 3. Removes toxic substances from the blood and converts excess
asked by Amber on February 17, 2008 
Polynomial Fucntion Problem
Could you help me with the following problem, I don't understand how to do it. Am I suppose to use the linear factorization theorem? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros;
asked by Jen on October 9, 2007 
Physics
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.8 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 107 m3) were made from this
asked by StressedStudent on November 23, 2012 
Math
A monopoly has a total cost function C = 1000 + 108x + 12x^2 for its product, which has demand function p = 324 − 3x − 2x^2. Find the consumer's surplus at the point where the monopoly has maximum profit. (Round your answer to the nearest cent.)
asked by Tom on April 22, 2015 
Chemistry
We just had a lab where our objective was to find the molar mass of Copper using electrolysis. A question on my post lab asks: Would it make a difference if Cu(NO3)2, instead of CuSO4, we’re used in the copper half cells in this experiment? Why or why
asked by ryancon on October 30, 2018 
trig
a plane is flying with airspeed of 140 mph and heading 280 degrees. The wind currents are running at 20mph at 260 degrees clockwise from due north. Find the true course and ground speed of the plane.
asked by Frankie on August 19, 2011 
physics
A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of refractive index 1.523. Trace the ray of light through the prism and find the total deviation produced.
asked by Please help Elena on October 28, 2012 
Chemistry
"Would you expect each of the following atoms to gain or lose electrons when forming ions? What ion [cation/anion] is most likely in each case?" Followed by a short list of elements such as Na and Sr. What I'm wondering is how I'm to know? I can't find
asked by Jack on October 18, 2007 
Chemistry
Find the number of mg Na2co3 FW = 106g/mol required to prepare 500ml of 9.2ppm NA solution. ppm = mg/L 9.2mg/1000ml x= 0.0092 x 500ml = 4.6mg x 23 = 106mg The right answer 10.6mg NA weight = 23 Who helps me to solve it for me.
asked by Fai on November 4, 2012 
design technology
for my design technology assignment i need to find a product where the designer has thought outside of the box. im not really sure what to do what i thought of was a coca cola can. the designer made it a bright colour to make it more appealing to consumers
asked by aleisha on October 12, 2009 
Physics
An artillery shell is fired at an angle of 56.7 degrees above the horizontal ground with an initial speed of 1960 m/s. The acceleration of gravity is 9.8 m/s^2. Find the total time of flight of the shell and the horizontal range, neglecting air resistance.
asked by Anonymous on October 11, 2018 
earth science
i need to know where i can find the brief mythology of the constallation capracornus([[[capricorn]]]) and the constellations inside the capricornus and the type of star they are and the distance from earth and the magnitude(absolute) and the color and
asked by theresa on October 3, 2007 
Physics
You will use the formula p*V = kB*N*T to find the depth of the box (front to back measurement). The volume of the box is given by the formula V = W * H * D. (You will need to convert the pressure from atm to Pa, or pascals, by multiplying atms by 1 * 105.)
asked by Jennifer on April 19, 2015
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