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Posts by rohan

Total # Posts: 72

Science
A small toy car moves around a circular track onces in every 8s. The radius of track is 3m. Find the speed of car.

chemistry
ozonolysis with orthoxylene gives 3 different products explain

chemistry
ethyacetoacetate gives positive test with sodium bisulphate. explain

Physics
Two bodies begin to fall freely from the same height but 2nd one falls T seconds ater 1st.The time(after which the 1st body begin to fall) when the diatance between them is L is: Options 1.T/2 2.T/2+L/gT 3.L/gT 4.T+2L/gT I am not understanding how to find the time and what is ...

Physics
S=ut+1/2at² 2=2u+2a------>(1) 4.8=6u+18a---->(2) Multiplying (1) by 3, 6u+6a=6 6u+18a=4.8 ------------- -12a=1.2 a=-0.1 m/s² Therefore, u=(2-2a)/2= 0.8 m/s Hence, distance travelled in the 10th second is---> S=u-1/2a(2n-1) S=0.8-0.1(20-1)= 0.8-1.9= -1.1m( ...

physics
An aluminum plate of mass 0.1 kg at 95oC is immersed in 0.5 litre of water at 20oC kept inside an insulating container and is then removed. If the temperature of the water is found to be 23oC, then the temperature of the aluminum plate is ___________ oC. (The specific heat of ...

science
4 gm of N aOH are present in 0.1dm3 solution have specific gravity 1.038 gm/ml. calculate: a. Molality of N aOH solution; b. Molarity of N aOH solution.

Science
potassium metal reacts with water to give potassium hydroxide and hydrogen gas How to balance this equation with proper steps?

maths
students are made to stand in equal rows with equal number of students.if 4 students are added to each row ,the number of rows will be reduce by 2 otherwise if 4 students are deducted from each row, the numer of rows will be increased by 3. then find the number of students

mumbai
invite teacher for your birthday party

math
The length, breadth and height of a closed box are respectively 2m, 1.5m and 0.8m. Find the total area of canvas required to cover it-up. Find also the cost of canvas if 1sq m of canvas costs Rs. 30. A rectangular box without lid is to be made by thin sheet of metal. Find the ...

math
Pls give me the solution

Maths
the number of non negative integral solutions of x + y + z ≤ n

Maths
how many ways can 6 coins be chosen from 20, one rupee coins, 10 fifty paise coins, 7 twenty paise coins?

Math
Your answer does not match any of the choices. Please help. g(x) = (x - 6)2 g(x) = (x + 18)2 g(x) = (x + 6)2 - 12 g(x) = (x + 6)2 + 12

Math
Determine the equation of g(x) that results from translating the function f(x) = (x + 6)2 to the right 12 units. g(x) = (x - 6)2 g(x) = (x + 18)2 g(x) = (x + 6)2 - 12 g(x) = (x + 6)2 + 12

Math
Does this mean the answer is D? g(x) = (x + 17)2 g(x) = (x + 14)2 + 3 g(x) = x2 - 11 g(x) = x2 + 17

Chemistry(science)
Calculate number of moles and mlecules present in 0.032 mg of mithene (C=12 H=1)

Physics to Elena
Ex=0 ; Ez=0 Ey = 10   sin(3.14x - 6.08e8 t) what is the time-averaged Poynting vector (magnitude and direction) for the position x=y=z=−3 ?

Physics to Elena
An optical fiber is a flexible, transparent fiber devised to transmit light between the two ends of the fiber. Complete transmission of light is achieved through total internal reflection. This problem aims to calculate the minimum index of refraction n of the optical fiber ...

Physics to Elena
thnx Elena :)

Physics to Elena
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by </S/>=1.35×103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane ...

Physics
plz help !

Physics
At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by </S/>=1.35×103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane ...

Physics
An optical fiber is a flexible, transparent fiber devised to transmit light between the two ends of the fiber. Complete transmission of light is achieved through total internal reflection. This problem aims to calculate the minimum index of refraction n of the optical fiber ...

Physics
neyone who has got the answer for Q8 part a and Q3 part b ?????

Physics
no ur eqn is of the form E= Eo(kx- wt), sooo u can guess nw ! okkay do u hav answers for Q3 part b, Q 1 part g n Q 8 ???

Physics
neyone who has solved Q7 n Q8 ? Q3 part b , Q1 part g..........????

Physics
B0= E0/ speed of case 1 or case 2 u found in abuv parts !

Physics
neyone who has solved Q7 n Q8 ??

Physics
Q3 part b answer plz...!

Physics
Q1 part f and part g formulae plz.....!

Physics
plz someone help...>!

Physics
plz help....!

Physics
plz help..

Physics
remaining answers ??

Physics
plz help....!

math
there are nine flowers 1/3 are daisies 1/3 are roses the rest are tulips

AP Chemistry
Find mass of liquid water required to absorb 3.94 X e4 of heat energy on boiling. Answer in units of g

Science math, science, social studies
a cyclist travels a distance of 4km from P to Q & then moves a distance of 3 km at right angle to PQ . Find displacement graphically

mathematics
use Simpson's Rule with n=10 to approximate the area of the surface obtained by rotating the curve about the x-axis. y = xln(x) from 1 < x < 2

physics
dont know

physics
an object of mass 0.5 kg is whirled at the end of string 0.8 m long if the string make three revolution in 1.2 sec find the tension of the string

Chemistry
A.t.q Mol3cular weight= 56×4/0.34×100

Chemistry
Calculte the amount BTU that would be lost to cool 587lbs of water from 87 degrees F to 49 degrees F.

maths
using Pythagoras theorem half of chord from center = 12/2 = 6 cm. 8square= x square + 6 square 64 = x+36 x square = 64-36 x square = 28 x = 5.291 cm

Physics-Math
1.5 m3 of water is mixed with 0.50 m3 of alcohol. Density of water is 1000 kg m–3 and density of alcohol is 800 kg m–3. Whats the density of the mixture with volume 2.0 m3?

maths
tan5x/4x as lim x approaches to pi

maths
lim tan 5x/4x as x approaches to pi

algebra
if a+2b+c=4 then find the maximum value of ab+bc+ca

2nd Grade Math
I NEED HELP WITH HOW MANY INCHES IS A HEXAGON

economics
haha lol

Physics
what potential difference U is needed such that a point charge (q) between a parralel plate capacitor leaves it at the upper right corner. the capacitor is separated by a distance "d" and the length of each plate is "l"

physics
2minutes 20 secinds=3.5 rounds circumfrence=2pieR displacement=7x22/7xr =22r So the displacement will be 22r

business
explain potential for growth internally and externally in a sole proprietor business

business
Sorry i couldn't come to the office Ms. Sue. I was scared of getting expelled :( Please don't hurt me! Please!

business
Ms. Sue I am very sorry for my behavior I admit it was me because i don't want t get anyone in trouble

business
Sorry Ms. Sue that appears to be some random people spamming.... Please don't get me in trouble, please!

business
i hate this school!!!! and ms. sue!!! hahahahahaha expell me!!!

business
well the business is a grocery and variety store

business
i want to get an explanation for potential for growth internally and externally in the sole proprietor business

business
no.the type of business is a sole proprietor

business
explain potential for growth internally and externally

Chemistry
The answer is definitely "The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20)."

10th grade
do advertisements do more harm than good

Spanish
What are some national dances and festivals of Honduras?

science
what is modification of plant explain with examples

Chemistry
The answer is definitely A

business
What is meaning of LLC & Entity. A business entity is the way the business is set up to run. It can be a partnership, sole proprietorship, corporation, LLC...these are all entities. A LLC stands for "Limited Liability Corporation." For more information, look here: ...

astronomy
Earths temperature averaged over the year is about 300 Kelvin. At what wavelength does it radiate most strongly? What part of the electromagnetic spectrum does this wavelength lie in? Can you see it? ( you answered my question but it doesnt go under 3000K on the chart. can you...

astronomy
How can you tell what sort of gas is emitting light? light is emitted by molecules...each molecule has a definite and unique signature.

astronomy
Earths temperature averaged over the year is about 300 Kelvin. At what wavelength does it radiate most strongly? What part of the electromagnetic spectrum does this wavelength lie in? Can you see it? http://csep10.phys.utk.edu/astr162/lect/light/planck.html

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