Saturday
February 6, 2016

Posts by Lina

Total # Posts: 217

physics
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 22.0 m/s. The cliff is h = 38.0 m above a flat horizontal beach, as shown in the figure below. How long after being released does the stone strike the beach below the cliff? s...
February 5, 2016

physics
A figure skater glides along a circular path of radius 4.70 m. (a) If she coasts around one fourth of the circle, find the magnitude of the displacement vector. m (b) If she coasts around one fourth of the circle, find what distance she skated. m (c) What is the magnitude of ...
February 5, 2016

Algebra 1
-2, -12, -72, -432 find the 8th term 0.2, 1.6, 12.8, 102.4 find the 6th term 24, 12, 6, 3 find the 7th term
February 4, 2016

math
I have $0.39. There is 1 more penny than nickel, and one more nickel than dimes. The coins are?
January 25, 2016

Math
Thanks :)
January 20, 2016

Math
What does it mean to get a 150% salary raise?
January 20, 2016

Physics
Also got lost on this question: A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4 m/s), (a) how far in advance of the recipients (horizontal distance) must the ...
January 18, 2016

Physics
I'm having trouble where to start with this question.. Any help would be helpful. A projectile is fired with an initial speed of 75.2 m/s at an angle of 34.5° above the horizontal on a long flat firing range. Determine (a) the maximum height reached by the projectile...
January 18, 2016

Physics
I did the problem but i'm confused on what to do next: 1.A hunter aims directly at a target (on the same level) 120m away. (a) If the bullet leaves the gun at a speed of 250m/s, by how much will it miss the target? (b) At what angle should the gun be aimed so the target ...
January 18, 2016

Chemistry Really Confused!!
'm confused on how to set up the problem for each question.. 1.) Calculate the empirical formula of a compound if a 6.21 g sample contains 1.67g of cerium and the remainder iodine 2.) An unknown compound contains 85.64% carbon with the remainder hydrogen. It has a molar ...
January 16, 2016

Chemistry... lost help
Please help!
January 16, 2016

Chemistry
I'm confused on how to set up the problem for each question.. 1.) Calculate the empirical formula of a compound if a 6.21 g sample contains 1.67g of cerium and the remainder iodine 2.) An unknown compound contains 85.64% carbon with the remainder hydrogen. It has a molar ...
January 16, 2016

ANY HELP WOULD AT ALL
Would be a major Extreme Help. any explanations and descriptions will do for each interval. 2 hours looking at this question
January 6, 2016

physics!!! Damon?
The graph at the right is a positive vs. Time graph for the motion of an object moving along a horizontal (x) axis For each of the 8 1-second time intervals, describe the displacement, instantaneous velocity (+/- and whether the velocity is increasing or decreasing) and the ...
January 6, 2016

CONFUSED physics! description explanations
CHECK MY WORK ___ v a 1s 00 00 2s 17 10 v=(60-43) a =(v3-0)=10 3s 10 -17 4s 00 -2 5s -2 (2m-66) 6s (2m-68) -58 7s (10-2m) (2m -10) 8s 00 (10-2m) I got lost with the numbers. Could you please explain in words.. I am still lost. Hopefully I get a reply before 11 am so I can ...
January 6, 2016

physics! description explanations
Homework due by 12am midnight! Please help asap. Not sure how to explain or describe velocity or acceleration. Its confusing. Hope with help, there will be a clear understanding.
January 6, 2016

physics! description explanations
The graph at the right is a positive vs. Time graph for the motion of an object moving along a horizontal (x) axis For each of the 8 1-second time intervals, describe the displacement, instantaneous velocity (+/- and whether the velocity is increasing or decreasing) and the ...
January 6, 2016

english
Idk i really need the answer thou please help
December 26, 2015

english
in robert frosts poem birches the lines you many see their trunks arching in the woods years afterwords training their leaves on the ground like girls on hands and knees that throw their hair ue which two poetic devices?
December 26, 2015

Maths..
Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol. Tony Bowled 135 and 145 in his first two games. Write ...
October 21, 2015

Maths
|a|-3/4=-5/8 a. 1/8 or -1/8 b. 7/8 or -7/8 c. 1 3/8 or -1 3/8 d. No solution could someone walk me through perhaps? I missed a ton of class.....So did Fae.
October 9, 2015

Math
A sport arena covers 710,430 square feet of ground. A newspaper reported that the arena covets about 700,000 square feet of ground. To what place value was the number rounded?
October 7, 2015

Algebra
A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m months and develops the equation p(m)=19.3(1.089) raised to m, to model the situation. Most recently, the scientist counted 138 plants. Assuming ...
September 23, 2015

Algebra
Calvin deposits $400 in a savings account that accrues 5% interest compounded monthly. After c years, Calvin has $658.80. Makayla deposits $300 in a different savings account that accrues 6% interest compounded quarterly. After m years, Makayla has $613.04. What is the ...
September 23, 2015

Algebra
An equation for the depreciation of a car is given by y = A(1 – r)t , where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The value of a car is half what it originally cost. The rate of depreciation is 10%. ...
September 23, 2015

Algebra
The general equation for depreciation is given by y = A(1 – r)t, where y = current value, A = original cost, r = rate of depreciation, and t = time, in years. A car was purchased 6 years ago for $25,000. If the annual depreciation rate is 11%, which equation can be used ...
September 23, 2015

Math Grade 5
The Eatery Restaurant has 200 tables. On a recent evening, there were reservations for 1/10 of the tables. How many tables were reserved?
September 16, 2015

Physics
A pilot flying low and slow drops a weight; it takes 2.8 s to hit the ground, during which it travels a horizontal distance of 100 m . Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground? How far does it ...
September 11, 2015

Math
14 2 7 3 9=10 insert symbols to make it work 9*2 11 8 4 1=60
September 11, 2015

Socials
Ok thank you! I just finished my essay, but I will take a look and maybe add some on to what I have now. I would post it here for you to proofread, but I don't wish to publish my work online.
May 5, 2015

Socials
How did the building of the transcontinental railway benefit the country? I know that First Nations were kicked off their farmland to make way for the building of the railway and for settlers(why would settlers need the land?). Why was the railway so important and does it some...
May 5, 2015

math
The length of a rectangle is 3 m more than double the width, and the area of the rectangle is 54 m^2. Find the dimensions of the rectangle.
May 5, 2015

accounting
rigoberto invests 8,000 at 6% interest, compound semiannually for 1 year
April 3, 2015

accounting
rose wants to have 7,500 in 18 years how much rose should invest now at 8% interest
April 3, 2015

chemistry
What volume of oxygen(in Liters) at 25 degrees C and 1.05 atm is needed to completely combust 2.65L of methane, measured at STP
March 30, 2015

Maths
How do you find the "average of the ends"? What does that mean and how do you get -1?
March 22, 2015

Maths
1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2. The radius of ...
March 22, 2015

earthquake engineering
Actually I got the formula and found the answer. Now, I just need to know about the safety when ground's period is greater, equal and lower than the structure's period. Can we say that it is too dangerous if the periods are equal?
March 20, 2015

earthquake engineering
Thank you so much. I will check them out.
March 20, 2015

earthquake engineering
I cannot open the page through this link. Should I register or sth?
March 20, 2015

earthquake engineering
Hey everybody! I have a question I would like to share and ask you. We have a soil layer with medium gravel which has a depth of 38 m. We want to build a multi storey framed building safely with a fundamental period of 1.7 sec.Do you think it will be safe? Vs is given as 750 m...
March 20, 2015

chemistry
I think "a"
March 18, 2015

MATH
A carpenter has a board that is 10 feet long. He wants to make 6 table legs that are all the same length. What is the longest each leg can be? Thanks
December 15, 2014

research proposal
Hey I'm doing my research proposal for graduation I have 2 questions Q1. What should it inude exactly? I mean the headlines/ content) Q2. For the literature review, after dining articles what should I summarize/use from them? (Introducton, methodology or what!) Thanks alot!
December 2, 2014

History Help!!
are you home schooled
October 2, 2014

history
what ideas is about dividing government into legislative judicial and executive branches
September 16, 2014

Science
not save
July 13, 2014

Word Problem
The length and width of a rectangle are to each other as 4 is to 3. A second rectangle are 4 units longer and 2 units wider than the first one, and has twice as great an area as the first. Find the dimensions of the first rectangle.
June 13, 2014

Algebra
OMG thank you so much for the thoroughness
June 13, 2014

Algebra
1/x+1/x+5+1/3x=1/2.25 Solve for x.
June 13, 2014

Algebra
There are three pipes in which a cistern can be filled. The second takes 5 hours longer than the first, the third three times as long as the first. If all are open the cistern can be filled in 2 and 1/4 hours. How long would it take each alone to fill the cistern?
June 12, 2014

Math
can you provide a check for the answers?
June 1, 2014

Math
A monument consists of two cubical blocks of granite, the smaller resting on the larger. The total height of the monument is 5 feet, and the area of the exposed surface is 61 square feet. Find the dimensions of the blocks. Help please>.< Thank you in advance!
June 1, 2014

Math
thank you!
May 23, 2014

Math
How would you check it?
May 23, 2014

Math
A confectioner perchased several boxes of candy for $6. He gave five boxes to his children, and sold the rest at 10 cents more per box than he had paid for them, and made a profit of 25% on his original cost. How much did a box of candy cost him?
May 23, 2014

Simple Probability Question
A small manufacturing company has rated 80% of its employees as satisfactory and 20% as unsatisfactory . Personnel records show that 75% of the satisfactory workers had previous work experience in the job they are now doing, while 30% of the unsatisfactory workers had no work ...
May 13, 2014

Math
For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was 5 cents, and the number of reserved seats sold was 1/25 of the number of unreserved seats sold.If, at a second game, the price of the reserved seats is to be ...
May 9, 2014

Algebra
A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat.
May 9, 2014

Math
1-)A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat. 2-)For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was...
May 8, 2014

Help w/ Math PLS
If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
May 7, 2014

Math
If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
May 6, 2014

ALGEBRA
Thank you so much!
April 24, 2014

ALGEBRA
perimeter = 24 feet triangle that have one side is b =? second side is b =? third side is b - 3 =? How to solve this problem?
April 24, 2014

Math
Choose the most specific term that will make the following statement true. Do not assume anything more than the information given. I am a ____ because my opposite sides are congruent and parallel. square rectangle parallelogram rhombus
April 13, 2014

Tcc
What are the magnitudes of (a) the angular velocity, (b) the radial acceleration, and (c) the tangential acceleration of a spaceship taking a circular turn of radius 3220 km at a speed of 29000 km/h?
April 10, 2014

Math help!!!! Thanks in advance!!!!!!!!!!!
they actually are the answer choices so.. go get yo life boo
April 3, 2014

math
How many faces, edges, and vertices does the solid figure have? image
March 21, 2014

Math
Explain how you would convert a measurement given in ounces into pints
February 10, 2014

Math 3rd grade
2-Eric and Frank want to equally share 4/3 feet of rope. what length of rope should each friend get? Explain how to use a drawing to help solve the problem.
February 3, 2014

Science help.
number 1 is wrong its a fools
January 4, 2014

Physics
A mass M = 40.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, as shown in the figure. If the string makes an angle theta = 21° with respect to the vertical, what is the acceleration a of the van? What is the ...
December 24, 2013

Physics
A cork gun contains a spring whose spring constant is 18.0 N/m. The spring is compressed by a distance ∆X = 6.0 cm and used to propel a cork of mass 7.66 g from the gun. Assuming the cork is released when the spring passes through its equilibrium position (Xeq), what is ...
December 17, 2013

Physics
A particle P travels with constant speed in a circle of radius 7.3 m and completes one revolution in 34.0 s (see Figure). The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 11.9 s and t = 16.9 s. The answer here...
December 17, 2013

Physics
A particle P travels with constant speed in a circle of radius 7.3 m and completes one revolution in 34.0 s (see Figure). The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 11.9 s and t = 16.9 s. The answer here...
December 17, 2013

Physics
A cork gun contains a spring whose spring constant is 18.0 N/m. The spring is compressed by a distance ∆X = 6.0 cm and used to propel a cork of mass 7.66 g from the gun. Assuming the cork is released when the spring passes through its equilibrium position (Xeq), what is ...
December 17, 2013

Can anyone help me with this?
all them answers were wrong got me an 1/3 on my test o retarted people these days
December 4, 2013

Nutrition
what are the principles of standing height and weight in the nutritional assessment? note: standing height and weight are from the anthropometric measurements i really need some help i couldn't find or understand what it actually wants so please some help.
September 18, 2013

statistics
How do you calculate the z-score for a package weighing 29.6 pounds ( round to 2 decimals)?
June 14, 2013

math
write the direct variation equation for the following:y varies directly with x and y=60 when x=10
June 11, 2013

Combinations and Permutations, Steve and Ms. Sue☺
hailee is right made 100% 10/10 thanks
April 10, 2013

math
If r = 12.5 and s = |−13|, which of the following inequalities is not true??? 1.r≠s 2.r< s 3.r≥s 4.r≤s
March 20, 2013

chemistry
the molar mass of NaOH is 40g/mol, how many grams ofNaOH are required to yield 0.65 mol?
March 9, 2013

math
yes
February 20, 2013

math
oh you multiply?
February 20, 2013

math
No wait is it 18 miles?
February 20, 2013

math
he**
February 20, 2013

math
so she could go 40 miles in 2 hours because 120/3=40
February 20, 2013

math
I'm not getting it yet?
February 20, 2013

math
oliver can jog about 3 times as fast as he can walk. If his average walking rate is one mile in 20 minutes, about how far could he jog in 2 hours?
February 20, 2013

Business calc
A total revenue function is given by R(x) = 1000(x^2 - 0.1x)^1/2 , where R(x) is the total revenue, in thousands of dollars, from the sale of x items. Find the rate at which total revenue is changing when 20 items have been sold.
February 19, 2013

Math
$6 per can
November 17, 2012

Chemistry
Kinetic energy = 1/2 mv^2 where m is the mass of the particle and v is the velocity of the particle. A joule is the SI unit for energy and is kg.m^2/s^2. Find the energy in joules of a 56.7 g mass moving at the speed of 70. km. hr.
November 5, 2012

CHEM HELP ANYONE ASAP
Arrange the members of the following set of cations in order of increasing ionic radii: Sr2+ Ba2+ Rb+ K+ I understand that Sr2+ = 132 pm Ba2+ = 149 pm Rb+ = 166 pm K+ = 152 pm increasing ionic radii ....Sr2+ , Ba2+ , K+, Rb+ But the its not going in online as correct
October 31, 2012

HEALTH
arent we all here for Ashworth lol 2016 Baby
August 22, 2012

HEALTH
gotty
August 22, 2012

allied health
I don't think its C. Its D
June 2, 2012

mathmatics
thank you
May 15, 2012

mathmatics
write an expression that represents the following: Eds salary is S dollars per week. His salary is tripled and he earns a $250 bonus. how much will he have in 13 weeks
May 15, 2012

Math
Tuesday:45 Thursday: 45 saturday:45 Sunday: 45 Then you add them all
May 15, 2012

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