Sunday
February 7, 2016

# Posts by samuel

Total # Posts: 212

COMPUTERS
CALCULATE THE AREA OF CIRCLE OF RADIUS 2CM USING FORTRAN PROGRAMMING LANGUAGE
January 30, 2016

Science
A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol
January 25, 2016

Chemistry
A compound on analysis as 87:8% c,12:2%h determine its empirical formular&molecular formular given mass=56gmol
January 25, 2016

calculus
Find the minimum distance between the curves y=e^x and y=lnx. Hint: Use the fact that e^x and lnx are inverse relationships. I have no idea where to start. Thanks!
January 18, 2016

math
The perimeter of a rectangular concrete patio is 38 meters. The area is 90 square meters. What are the dimensions of the patio?
January 14, 2016

math
the horizontal,vertical and diagonal columns and rows of a magic square all add to the same sum.use the digits 1-16 one time each to make a magic square
January 14, 2016

physics
a car which weight is 1000N is travelling at 90kmn/hr and come to rest in a distance of 50m after applying the brakes. assume uniform acceleration, calculate how large its stopping force was exerted by the friction between the wheel and the road.
December 16, 2015

Math
a 6.5 ounce can of tuna for \$1.39 or a 3 ounce can of tuna for \$0.65. the 6.5 ounce can of tuna costs ________ the 3 ounce can of tuna costs __________ the ______ ounce can of tuna is the better buy
December 9, 2015

logics in programming
for A=1 to 30
December 9, 2015

Elective maths
A particle P of mass 7kg is suspended by two inextensible strings AP,BP of lengths 40cm and 75cm respectively. The ends, AP of the strings are attached to two point at the same level, whose distance apart is 85cm. Find angle APB and the magnitude of the tensions in the strings...
October 6, 2015

physics sl
A dead dog of mass 2.2 kg and an initial speed of 5.5 m.s-1 slides along a rough horizontal surface and stops after travelling 4.2 m. calculate the frictional force between the dog and the surface (Think of the work the friction has to do to stop the dog – the Ek of the ...
October 4, 2015

math
What are the steps to show the quotient in simplest form? 0.000027/0.000009
September 30, 2015

math
A certain computer can perform 10^5 calculations per second. how many calculations can it perform in 10 seconds
September 30, 2015

Chemistry
I cant for the life of me figure out how to complete this question as our teacher hasn't properly gone over this section.
September 11, 2015

Chemistry
If an aquarium tank holds 100 litres of water, calculate how much heat energy would be required to heat the tank from 18.2 Degrees(C) to 32 Degrees(C)
September 11, 2015

Chemistry
The solubility of potassium nitrate at 20¡ãC is 340g/litre. How many grams of KNO3 can dissolve in 185ml of water?
September 7, 2015

mathematics
A man takes a 500km trip in his car, He rotates his tyres (four on the car and one spare) so that in the end of the trip each tyre has been used for the same number of kilometres. How many kilometres did each tyre cover?
August 28, 2015

English
In Fahrenheit 451, what pages are these words found on? I really need help just with this. It would be nice to help me out. Here are the words. Part 1: Abruptly, intact Part 2: certitude, darkling, dispersing, linguists, moor, televisors Part 3: scuttling
July 12, 2015

Science
4g of an organic compound gave 2.34g of carbon 0.16g of hydrogen 0.46g of nitrogen 1.04g of oxygen.what is the empirical formula
June 22, 2015

PHYSICS
gn elastic cord can be stretched to its elastic limit by a load of 2N. if a 35cm length of the cord is extended 0.6cm by a force of 0.5N, what will be the length of the cord whem the stretching force is 2.5N
May 28, 2015

Life oriantetion
For 5 interview questions
May 11, 2015

physics
force=m*a 4000-300=3m/s2*m m=1233.33kg
April 8, 2015

math
During the summer holidays,your brother earns extra money mowing lawns.He mows 6 lawns an hour and has 21 lawns to mow.How long will it take him?
April 7, 2015

math
A diver on a platform 40 feet in height jumps upward with an initial velocity of 5ft/s. His height in h feet after t seconds is given by the function h=-16t^2+5t+50. a. What is his maximum height? I got 50.39 b. How long will it take him to reach the surface of the water? h=-...
March 25, 2015

Math
I have the same problem as Marita. Can someone tell us what equation to use. Horizon has a cell phone plan for \$28.00 per month plus \$.30 per minute with unlimited anytime network minutes and a free flip phone for new customers. How do I put this in an equation. Sprint has a ...
March 8, 2015

physics
isolate for f 1/di = 1/f - 1/do show all the steps pls
February 8, 2015

physics
isolate for t s = ut + 1/2at^2 please show all ur steps  
February 8, 2015

physicss
state the precision of the measured quantities 1. 0.07 m 2. 908 s 3. 7.60 L 4. 0.005 0 mm answers: 1. 0.01 m 2. 1 s 3. 0.01 L 4. 0.0001 mm i do not understand this , please explain it to me
February 4, 2015

physics
noo the answer is 1g and 0.01cm
February 4, 2015

physics
state the precision of the measured quantities 1. 353g 2. 6.00cm please explain
February 4, 2015

algebra 1
a heavy freight train made a trip of 360 miles, running part of the distance at 54 miles an hour and the rest at 48 miles an hour. if the entire trip took 7 hours, find the distance traveled at each rate
February 2, 2015

physics
a force of 1600N is used to push a crate of brick at a rate of 40m/s squard. If the crate weights 150kg, how much do the bricks weight?
January 22, 2015

math
i got it its 11
January 21, 2015

math
WHAT????????????????
January 21, 2015

math
Camp Oaks gets 32 boxes of orange juice and 56 boxes o apple juice.Each shelf in the cupboard can hold 8 boxes of juice. What is the least number o shelves needed for all the juice boxes?
January 21, 2015

math
c is my best answer.
January 21, 2015

math
C??????????????????????????????????
January 21, 2015

math
FORGET ABOUT A, NOW I THINK IT IS B
January 21, 2015

math
There are 6 muffins in a package.How many packages will be needed to feed 48 people if each person has 2 muffins? A.4 B.8 C.16 D.24
January 21, 2015

math
If the wheel of a bicycle has a diameter of 60cm, calculate how far a cyclist will have travelled after the wheel has rotated 100 times.
January 15, 2015

Algebra
A. "Solve for w: (6w+1)/5≠2. Describe the solution in set notation." First I must find what number to substitute for "w" that WILL equal 2, correct? Then, determine the numbers that won't (I assume there will be far more of these)? What would be ...
January 14, 2015

Economics
Can someone help me with #1 - a,b,c it is on economics20145.weebly
December 11, 2014

English
''Nor was' is not necessary.
November 24, 2014

English
Yes, nor is a transition word.
November 24, 2014

English
Last Monday, Patrick Maloney was killed, but there were no suspects nor a murder weapon found.
November 24, 2014

science
'Imagine there is a tank of unknown gas that contains 53.31% carbon, 11.18% hydrogen, and 35.51% oxygen by mass. At 35.0 °C and 0.455 bar, 2.00 L of the gas has a mass of 3.20 g. Using this information, answer the following questions. a.) What is the empirical formula ...
October 27, 2014

math
The machining center at a production facility has three lathes of differing ages and thus precision. The oldest, machine A, produces finished units of product of which 88% are good, 8% are blemished, and 4% unusable. Machine B produces 92% good, 6% blemished, and 2% unusable. ...
September 12, 2014

Physics
A wind is blowing with a speed of 50 mph is a direction 40 degrees west of north. What is the westerly component of the wind's velocity? What is the northerly component of this velocity?
September 8, 2014

BIOLOGY
A reference calls for the use of "one litre of 0.1 molar acetate buffer pH 5.2” Calculate the amounts of sodium acetate and acetic acid required to make up this buffer, given that for acetic acid Ka = 1.8 x 10-5
August 16, 2014

L.o
List four factor that could threaten or limit core functions of the media
May 26, 2014

English III (11th grade)
Thank you!
May 12, 2014

English III (11th grade)
Never mind, I've figured it out. Thank you for looking over this question though.
May 12, 2014

English III (11th grade)
Lana woke up, curled in a corner of the seat at the back of the train. She lifted the shade to see that the sun had hidden itself in a bank of clouds fluffy as the eiderdown her mother had wrapped her in as a child. Her darling Ted, a military man with a distinguished career, ...
May 12, 2014

Math
2 vertices of a triangle are 1,-4 and 6,-4. List 2 possible coordinates of the third vertex so that the triangle has an area of 20 units.
April 24, 2014

English
Why traditional african marriage is an advantage for men only not, women
April 21, 2014

College Physics
The point charges in Figure 17.41 are located at the corners of an equilateral triangle 25.0 cm on a side, where qb = +12.0 µC and qc = -4.50 µC. (Assume that the +x-axis is directed to the right.) (a) Find the electric field at the location of qa. Magnitude ? N/C ...
March 24, 2014

finite math
The Megabuck Hospital Corp. is to build a state-subsidized nursing home catering to homeless patients as well as high-income patients. State regulations require that every subsidized nursing home must house a minimum of 760 homeless patients and no more than 1100 high-income ...
March 8, 2014

Physics
VERY URGENT- A kicked ball takes off at 25m/s at an angle with the ground. If the goal is 50m away and the horizontal bar is 3.44m above the ground, what must be the elevation angle for the kicker to score a goal?
February 26, 2014

math
From a survey of 100 college students, a marketing research company found that 65 students owned iPods, 35 owned cars, and 25 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?
January 14, 2014

chemistry
will iron rust if it is placed in a test tube of ethanol acid with no water inside. Explain
December 12, 2013

physics
I am having a bit of trouble with this one. A safety harness is connected to a cable with a report breaking stress of 800MNm-2. What mass could be hung from a harness if the diameter of the cable was 6mm?
October 19, 2013

math
In the figure, p || q and r is the transversal. If OA and OB are bisectors of the interior angles, which of these describes angle AOB?
October 16, 2013

ece
its b cuz of course you cant read unless you know how to sound out words
October 14, 2013

physics
dont get it
October 14, 2013

physics
A cube of balsa wood (side length = 0.25 m) is tied with a string to the bottom of a waterfilled container. The wood is completely immersed. What is the tension in the string?
July 29, 2013

chemistry
the molarity of 2% by weight of aqueous solution of H2S4(molecular weight = 98)
July 5, 2013

science
5.0g of magnesium metal reacted with 1000cm3 of 4.5M HCl solution to produce hydrogen gas. Calculate the amount of HCl left after the reaction
June 29, 2013

Chemistry
Wha volum of steam is produced when log of propyrie is burnt in excess oxygen at s.t.p?
June 21, 2013

physics
2 balls of clay , the first of mass 0.5kg,the other of mass 0.75kg approach each other ,each travels with a velocity of 0.5m\s,after the collision they stick together,what is the total energy after collision .Obtain the coefficient of restitution.
June 3, 2013

math
the bearing of Y from X is 160¤ and the bearing of Z from Y is 060¤. find the bearing of X from Z.
May 11, 2013

math/physics
Estimate the percentage savings in the fuel bill if the thermostat is set back from 68 degrees F to 50 degrees F for 12 hours of the day, and left at 68 degrees F for the other 12 hours, assuming an outside temperature of 15 degrees F all day.
April 26, 2013

L.O
5 ways in which the human or environmental problem impacts on the community.
April 20, 2013

Math
A track of mass 1000 kg travelling on a straight level road accelerates from a speed of 10 m/s to a speed of 30 m/s in 12 seconds. Given that the engine of the track exerts a constant pull of magnitude P N and that there is a constant resistance to motion of 200 N, find the ...
April 17, 2013

Science
abiotic
April 2, 2013

Maths
The solution is about the number of divisors of each number from 1 to 99 and we will exclude 100 as he said they should be positive integers. so we will add them to get 473. A quick formula to calculate the number of divisors is for example 18=2^1 * 3^2 then no.of divisors ...
April 2, 2013

If the base is 12cm and a height of 15cm then the area is?
April 1, 2013

if the height of a triangle is 28cm and the base is 16cm then what is the area?
April 1, 2013

Physics 11 - Dynamics
While standing on a horizontal frictionless surface a 50.0 kg student pushes against a wall with an average force of 125 N to the right for 0.110 s. Calculate the velocity of this student at 1.110 s. My answer: Vf = 0.275 m/s My solutions book has Vf = -0.275 m/s OR 0.275 m/s ...
March 19, 2013

Physics 11
If two objects weighing 5 kg and 7 kg are dropped from a height of 64 m and 36 m, respectively. What will be the ratio of times taken to reach the ground? Thanks.
March 13, 2013

Physics 11
Displacement is given by x=2+3t+4t². Find the value of instantaneous acceleration.
March 13, 2013

Physics 11
Great. Thanks a lot.
March 13, 2013

Physics 11
A man jumps from a great height and falls freely to the Earth. Another man jumps from the same height 1 s later. How much are the two men separated by, 2 s after the second man jumps? I'm not sure exactly how to tackle this question. I'm sure I'm making it more ...
March 13, 2013

scale drawing
1cm^2 ----
February 18, 2013

physics
The relative Density of an alloy is 65.(a) find the mass of a solid alloy cube of side 20cm.(b) what vol of the alloy has a mass of 13kg? Please explain in details
January 31, 2013

science
An empty relative density bottle weighs 25g.it weighs 65g when filled with a liquid and 75g when with water.caculate the density of the liquid.
January 31, 2013

algebra
Determine whether or not the relation is a function. (-3,6), (-2,7, (-1,8), (0,9)
January 26, 2013

physics
A block of mass 2 kg is connected to a freely hanging block of mass 4 kg by a light and inextensible string which passes over pulley at the edge of a table. The 2 kg mass is on the surface of the table assumed to be smooth. Calculate the acceleration of the system and the ...
January 12, 2013

Math
The scale on a globe is 1/8 of an inch equals 125 miles. How many inches is the circumference of the globe if the diameter of the Earh is 7,926.41 mi?
December 17, 2012

Algebra
A rectangle is drawn so the width is 7 inches longer than the height. If the rectangle's diagonal measurement is 46 inches, find the height.
December 13, 2012

science
what is the alelles of a tall plant.
November 27, 2012

Physics
A person pulls a crate with 120 N of force against 100 N of friction a distance of 5 meters. Find the energy the person expends pulling the crate, the amount of energy converted to heat via friction, and the increase in the kinetic energy of the crate.
November 20, 2012

math
f(24)=1/2(24)+5
October 29, 2012

ap chemistry :(
consider the reaction C6H14 + 9.5O2 yields 6CO2 + &H2) at constant pressure. which response is true? 1. work may be done on or by the system as the reaction occurs, depending upon the temperature. 2. work is done on the system as the reaction occurs. 3. no work is done as the ...
October 18, 2012

College Physics
Assuming that accelerations is constant, Given: a=15 ms^-2, s=14.1 m Applying kinematics equation, v^2 = u^2 + 2as Find for u since v is 0, u= sqrt(2 x -15 x -14.1) = 20.78 Solve for t, s= ut + 0.5at^2 14.1= 20.78t + 0.5(15)t^2 //Solve quadratic eqn for t t= 0.564(Ans), -3.33(...
October 8, 2012

Math
how did you get 4/5 lan?
October 4, 2012

Math
Use a ratio to compare the values. Simplify the ratio. 5 m to 100 cm the ansere is 5:1 those questions are from k12
October 4, 2012

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