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Posts by priyanka

Total # Posts: 72

Physics
What is the maximum weight of an aircraft with a wing of area 50m sq. flying horizontally, if the velocity of the air over the upper surface of the wing is 150m/s and that of lower surface is 140 m/s.

math
A packet of soup makes 9 bowls of serving . How many 3/4 bowls of serving are possible ?

Physics
A particle accelerates from rest at a constant rate for some time and attains a velocity of 8 meter per second. Afterwards it decelerates with the consent rate and comes to rest. If the total time taken is 4 second then what is the total distance covered by the particle?

maths
4/9 of a group of students are girls , if there are 17 more boys than girls . how many students are there alltogther

maths
2+3=5 sum=30 first number=2/5*30=12 second number=3/5*30=18 verify: 12+18=30

chemistry
25 ml of SHW containing CaCO3 1 g/L consumes 12 ml of EDTA. 25 ml of hard water consumes 8 ml of standard EDTA solution. After boiling the sample, 25 ml of the boiled hard water consumes 6 ml of standard EDTA solution. Calculate the total, permanent and temporary hardness

physics
A Photon of energy 240 KeV is scattered by a free electron. If the recoil electron has a Kinetic energy of 190 KeV, what is the wavelength of the scattered photon?

physics
THANKS A LOT !!!!!!!!

physics
The speed of the bullet (m = 50g) and the speed of an electron ( m = 9.1 * 10-28g) are measured to be the same, namely 300 m/s, with an uncertainty of 0.01%. With what fundamental accuracy could we have located the position of each, if the position is measured simultaneously ...

physics
find the energy of an x-ray photon which can impact a maximum energy of 50 kev to an electron

English
Synonym of unmisted

chemistry
At what temperature average speed of nitrogen will be same as the RMS speed of oxygen at 300 kelvin?

math
I need help with math 12 5/8+6 3/8+5 2/3= they must have coming denominator like 24 = The answer

Science
When a balloon filled with any gas and the end is tied. It is left in the air. What changes occur in the volume of the balloon? Give reason.

6th grade math
20.3

math
How to solve this? 1 / x * 5 / 13 = 5 / 286

math
Rafi is upgrading his cell phone and monthly service plan.Triax Cell offers a new phone for $50 and unlimited service for a monthly fee of $40.CellUR offers a new phone and unlimited service for a monthly fee of $50. After how many months will the cost of the two phones and ...

math
It costs $12.50 to see a movie at a theater near Jason's house. It costs only 1.95 to rent a DVD from an online service. A DVD player costs $125. To the nearest whole number, how many movies must Jason watch on DVD instead of at the theater before he recovers the cost of ...

math
ram weighs 45kg and mary weighs m kg. write an expression for their combined weight.

science
the vapour pressure of pure liquid benzene and toluene are 160mm and 60 mm repectively. calculate the vapour pressure of an equimolar solution at the same temperature?

math
Rs 5925

science
at 30 degree celsius , the solubility of ag2co3 (Ksp= 8 * 10^-12) would be maximum in 1 litre of ? a) pure water b) 0.05 M NH3

physics
The half life period of radium is 1600 years.In how many years 1 gram of radium lose 1 centigram??

Math
Diagonal of rhombus are 24 and . Find its area and perimeter:/help me fast

physics
a ball A collides elastically with another ball B initially at rest. A is moving with a velocity of 10m/s at an angle 60' from the line joining the center. select the correct alternative: a)velocity of ball A after collision is 5 m/s b)velocity of ball B after collision is...

grade 12 calculus and vectors
Determine the average rate of change form x = 1 to x = 4 for each function. a) y= x b) y=x^2 c) y=x^3 d) y=7

englisch
ich muss ein referat auf englisch machen. ich paar fragen: different knd of animal,where it lives,what it eats,whenit sleeps,what it does,what is special about it,pictures,where it sleeps. bitte schreibt mir die internet seite? NICHT vergessen es muss auf englisch und es muss ...

schul projekt
hallo,ich brauche hilfe beim projekt. ich muss reisekataloge über islas canarias -spaniens insel im atlantik recherchieren. könnt ihr mir helfen und schreib auch die internet adresse wo ihr es herraus gefunden hat danke schön

deutsch
bitte erkläre mir die wörter: eigenartige weisen schürzte seie kleider allerlei ausflüchten schwarm die Kunde Ungesäumt spielmann senkung eines hügels danke! ps: schreibe mir eine schnelle antwort!!!

geometry
Circle A has radius 6. Circle B has radius 10. They cross at two points that are 5 apart. What is the overlapping area?

Maths
The radius of a circle is 8cm, and the length of one of its chords is 12cm. Find the distance of the chord from the centre.

nawi
wie kann man tierrefat thema elefant oder elefanten und elfenbein. könnt ihr den refarat schreiben und schicken ?

math
332

physical science
I think that both will hit the ground at the same time if she drop them from the same height.

accounts
on july 01,2000, asok ltd. purchased a machine for Rs.1,08,000 and spent Rs.12000 on its installation.At the time of purchase it was estimated that the effective commercial life of the machine will be 12 years and after 12 years its salvage value will be Rs.12,000.prepare ...

mathe
aufgabe 1.rechne für die folgenden massstäbe aus,welche Länge fünf zentimeter auf der wirklichkeit haben. massstab 1--1000000-- massstab 1--40000000,massstab1--50000--massstab--10000-- massstab 1--500000

mathe
wie viele menschen sind in den letzten 500.000 jahren dazugekommen

deutsch
um was besteht sprache

mathe
was ist ein mittel wert

mathe
wie heisst die grösste vierstellige zahl aus lauter verschiedenen ziffern

mathe
wie heisst die kleinste siebenstellige zahl,wenn keine ziffer mehr als zweimal vorkommen darf

science
A car is travelling at 80km/h in east direction , a train is travelling at 50 m/s in north direction then what is the combined velocity of car and train?

physics
A car is travelling at 80km/h in east direction , a train is travelling at 50 m/s in north direction then what is the combined velocity of car and train?

math
if x=0 y=3*0-5*0+9*0-8 y=-8

statistics
A simple random sample of 50 items from a population with σ  6 resulted in a sample mean of 32. a. Provide a 90% confidence interval for the population mean

math
in triangle abc ad is bisector of angle a and angle b is twice of angle c prove that angle bac is equal to 72

Physics
Thanks, for the help Elena. For me this answer is also not working its saying that its wrong. :/

Physics
Four people sit in a car. The masses of the people are 41 kg, 47 kg, 53 kg, and 55 kg. The car's mass is 1020 kg. When the car drives over a bump, its springs cause an oscillation with a frequency of 1.00 Hz. What would the frequency be if only the 41-kg person were ...

Physics
A spoked wheel with a radius of 44.0 cm and a mass of 1.90 kg is mounted horizontally on frictionless bearings. JiaJun puts his 0.550-kg guinea pig on the outer edge of the wheel. The guinea pig begins to run along the edge of the wheel with a speed of 18.0 cm/s with respect ...

Physics
Sorry ignore what I said here before...the ball is at the top and it slides to the right then it goes up a little which makes a curve which is distance R and the distance it slides from top to botton is H...hope you have an idea now!

Physics
Sorry, but this is still confusing there is no radius given besides the info I have provided earlier!

Physics
A bucket of water with a mass of 4.0 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 8.0 kg and is mounted horizontally on frictionless bearings. The bucket is released from rest. (a) Find its speed after it has fallen through a distance of...

Physics
sorry I divided it by total mass 10.7 not eleven, but I do get wrong answer :/ !

Physics
Belinda needs to find the center of mass of a sculpture she has made so that it will hang in a gallery correctly. The sculpture is all in one plane and consists of various shaped uniform objects with masses and sizes as shown. The length of the rectangle is L = 1.4 m and the ...

Physics
Thank you Drwls! I really appreciate your help.

Physics
A 44.0-kg woman stands at one end of a 148 kg raft that is 6 m long. The other end of the raft is 0.5 m from a pier. (a) The woman walks toward the pier until she gets to the other end of the raft and stops there. Now what is the distance between the raft and the pier? in m ...

Physics
Thank you!

Physics
In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.1 m/s and collides with an initially stationary, fully loaded boxcar of mass 4.3m. The two cars couple together upon collision. (a) What is the speed of the two cars after the ...

Physics
Thank you Elena :) !

Physics
Do I use kinematic equation for part a? And what would be the force for part b? Thank you!

Physics
A pole-vaulter of mass 59.9 kg vaults to a height of 5.9 m before dropping to thick padding placed below to cushion her fall. (a) Find the speed with which she lands. m/s (b) If the padding brings her to a stop in a time of 0.48 s, what is the average force on her body due to ...

Math
multiplition

Math and FPMSA school
Aaron is practicing for a triathlon. On Sunday, he bikes 12 5/8 miles and swims 5 2/3 miles. On Monday, get runs 6 3/8 miles. How many total miles does Aaron covers on the two days?

Math
Aaron is practicing for a triathlon. On Sunday, he bikes 12 5/8 miles and swims 5 2/3 miles. On Monday, get runs 6 3/8 miles. How many total miles does Aaron covers on the two days?

4th grade math
800

english
past tense

English
Write a passage using rhetorical device on a person, idea or ideology(300 words)

orgenic chemistry
Aqueous sodium bicarbonate was used to wash the crude n-butyl bromide. What was the purpose of this wash? Give equations. Why would it be undesirable to wash the crude halide with aqueous sodium hydroxide?

orgenic chemistrry
why is the reaction mixture extracted with sodium bicarbonate?give an equation and explain its relevance.

deutsch
wissen macht ah

Spanish Essay: Looking for Corrections
you need to substitute bananas in the sentence "Costa Rica produce el café y las bananas." with platanos.

German
woher kommen sie her

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