# Newton

Most popular questions and responses by Newton
1. ## physics

In an experiment to estimate the diameter of an oil molecule,an oil drop of diameter 0.05cm spreads over a circular patch whose diameter is 20cm. ยก)determine the volume of the oil drop.

2. ## calculus.can you help me on these as well@sir collins

integrate sin^7xdx

3. ## Chemistry

A student was asked to prepare a sample of copper(ii)sulphate crystals(CUSO4.5H2O) given 5g of of copper (ii)oxide (CUO) as the starting material.if 10g of dry crystals of CUSO4.5H2O were obtained,calculate the percentage yield???

4. ## maths plz help!!

A hose ejects water at 80cl/s through a hole 2mm in diameter.the water implinge a wall and drop off without rebounding.what is the force on the wall? working plz thanks

5. ## calculus help

integrate cos^10xdx.. .plz show working i really wanna learn these thanks anyway

6. ## Chemistry

A mixture of powdered carbon and an oxide of lead was heated producing lead metal and carbon dioxide.when 13.70g of the lead oxide was reduced to lead by carbon,960cm^3 of carbon dioxide measured at r.t.p was formed. Calculate the empirical formular of the

7. ## Java progamming 1

I want the program to ask for and get the price of a book from a user. The program will then multiply the price by 7% sales tax and display both the sales tax and final price of the book (price + sales tax) on the screen. using Netbeans

8. ## calculus very hard help

integrate:cos^10xdx even with the previous hint a tutor here gave me i still don,t know it

9. ## maths help!

find the mass of the earth assuming the radius is 6400km

10. ## physics

the volume v of a sphere of radius r is given by v=4/3pie r^3 what is the fractional change in v for a fractional change in r

11. ## math place value

how many tens if there were no hundred dollars for eg:200=what?

12. ## math

how many tens if there were no hundred dollars?

13. ## programming

Declare a string variable name myName

14. ## physics

what is an e.m.f

15. ## Physics

2. On the inside of an airplane the air pressure is about 85% of the atmospheric pressure at sea-level while outside, when it is cruising, the pressure is about 25% of the sealevel atmospheric pressure. If a window is 0.46 m in diameter, what is the net

1. ## 7th grade Lang. Arts

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posted on November 23, 2018
2. ## physics

PE going into the down side: mgH KE is translational, and rotational or mgH=1/2 m v^2 + 1/2 Imr^2*w^2 mgH=1/2 m v^2 + 1/2 (1/2)mr^2*w^2 but when rolling, w=v/r mgH=1/2 m v^2+1/4*mv^2 =3/4mv^2 On the second side, rolling doesn t happen, the shell just

posted on April 24, 2018
3. ## physics

PE going into the down side: mgH KE is translational, and rotational or mgH=1/2 m v^2 + 1/2 Imr^2*w^2 mgH=1/2 m v^2 + 1/2 (1/2)mr^2*w^2 but when rolling, w=v/r mgH=1/2 m v^2+1/4*mv^2 =3/4mv^2 On the second side, rolling doesn t happen, the shell just

posted on April 20, 2018
4. ## physics

? PE going into the down side: mgH KE is translational, and rotational or mgH=1/2 m v^2 + 1/2 Imr^2*w^2 mgH=1/2 m v^2 + 1/2 (1/2)mr^2*w^2 but when rolling, w=v/r mgH=1/2 m v^2+1/4*mv^2 On the second side, rolling doesn t happen, the shell just spins, and

posted on April 20, 2018
5. ## calculus.can you help me on these as well@sir collins

thanks you

posted on April 19, 2016
6. ## calculus very hard help

thank you very much sir collins

posted on April 19, 2016
7. ## Trigonometry

First start by converting the angle in radians to degrees, hence will have Sin(90-x)=cos x =sin90cosx-cos90sinx, sin 90=1 and cos 90=0 =1(cos x)- 0(sin x) =cos x (proved)

posted on May 10, 2015