Friday
April 18, 2014

Search: the volume of a sphere of radius r is V = 4/3 pi r^3. Use the formula to find r in terms of V. Rationalize the denominator. Use your answer to part (a) to find the radius of a sphere with volume 100 cubic inches

Number of results: 27,537

Calculus
4. At time t, t>0, the volume of a sphere is increasing at a rate proportional to the reciprocal of its radius. At t = 0, the radius of the sphere is 1 and at t = 15 the radius is 2. a. Find the radius of the sphere as a function of t. b. At what time t will the volume of ...
Tuesday, February 14, 2012 at 6:23am by Anonymous

calculus
3. The radius r of a sphere is increasing at a constant rate of 0.04 centimeters per second. (Note: The volume of a sphere with radius r is v=4/3pir^3 ). a. At the time when the radius of the sphere is 10 cm, what is the rate of increase of its volume? b. At the time when the ...
Tuesday, January 3, 2012 at 12:02am by Yoona

physics
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4r63/3]
Tuesday, January 19, 2010 at 7:05pm by Mandy

college physics
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4r63/3]
Tuesday, January 19, 2010 at 7:21pm by Mandy

college physics
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4r63/3]
Tuesday, January 19, 2010 at 7:21pm by Mandy

Physics
Sphere 1 has surface area A1 and volume V1, and sphere 2 has surface area A2 and volume V2. If the radius of sphere 2 is 3.5 times the radius of sphere 1, what is the ratio of each of the following?
Tuesday, August 30, 2011 at 6:31pm by Anonymous

Chemistry
Well ok, here is my problem: Calculate the radius of the sphere in the previous problem in centimeters. Note that the volume of a sphere is (4/3)pir3, where r is the radius. The volume of the sphere in the last problem was 631.7 L, or 6.32x10^35 cubic picometers. I'm not sure ...
Wednesday, October 3, 2007 at 8:49pm by Cierra

Physics
Steps: 1. Get the volume of the sphere (baseball). You re given the diameter, and you can get the radius by dividing this by 2. You are also given the formula: V,sphere = 4/3 * π * r^3 Just substitute the value of radius to get V. 2. Divide the given mass by volume to get...
Sunday, December 1, 2013 at 8:22pm by Jai

Chemistry
The volume of a sphere is given by V=(4/3)3.14r^3, where r is the radius. Compute the volume of a sphere with a radius of 329pm. state your answer in units of m^3.
Wednesday, January 29, 2014 at 9:33pm by Cain

math
The side length, d, of a cube that contains a sphere depends on the radius, r, of a sphere. Assuming that the faces of the cube are tangent to the sphere, write the volume of the cube as a function of the radius of the sphere.
Friday, January 24, 2014 at 5:19pm by john

algebra
what is the volume of a sphere with radius r is given by the formula v=4/3 r^3 Find the volume of sphere with radius 4 meters. use 3.14 for the value of x and round your answer to the nearest tenth.
Wednesday, November 16, 2011 at 6:52am by Angela

calculus *improper integrals*
A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface area and r^2 is the interior surface area. ...
Sunday, September 16, 2012 at 11:57pm by John

Math
The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.6(V)^1/3. Find the radius of a sphere with a volume of 729 cubic meters. Round the answer to the nearest hundredth.
Saturday, March 27, 2010 at 8:45pm by Anonymous

algebra
The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.62(V)1/3. Find the radius of a sphere with a volume of 216 cubic meters. Round the answer to the nearest hundredth.
Sunday, July 7, 2013 at 11:04pm by Anonymous

calculus
A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface area and r^2 is the interior surface area. ...
Saturday, September 15, 2012 at 11:06pm by John

10th grade
The volume of a small sphere is 36 pie cm cubed. The volume of a large sphere is 288 cm cubed and its radius is 6 cm. What is the similarity ratio of the radii of the two spheres? What is the measurement of the small sphere's radius?
Tuesday, February 23, 2010 at 2:53pm by renee

Geometry
The volume of a cylinder is V = pi * r^2 * h, and the volume of a sphere is V = (4/3) * pi * r^3. The volume of the barber pole including the sphere can be found by adding the volume of the cylindrical part to the volume of the spherical part. You are given that the radius is ...
Thursday, August 20, 2009 at 3:50pm by Marth

Math- Radius
The volume of a sphere is V = 14,130 ft3. What is its surface area? What is it's radius? The volume of a sphere is V = 4443 m3. What is its surface area? What is it's radius?
Sunday, May 13, 2012 at 9:09pm by Mike

MAth
A sphere has a surface area of 28.26 in2. Find the diameter in inches, of the sphere. Use PI Question 2 What is the surface area, in square inches, of a sphere with radius 3.5 in.? Use Pi and round your answer to the nearest hundredth, if necessary. Question 3 Whats is the ...
Sunday, July 8, 2012 at 12:29pm by Jessica

Physics
What is the volume in cubic cm of a sphere with radius 2 cm? is it = 33.51032163829112 What is the area in m2 of a triangle with base 2.8 m and height of 10.4 m? is it = 14.56 A sphere has a volume of 106 cm3. What is its radius (in cm)? is it = 101.8112097952136 that doesnt ...
Monday, August 24, 2009 at 8:04pm by Yulia

math
A right circular cone is inscribed inside a sphere. The right circular cone has the radius of the base of 4 inches and the height is greater than 2 inches. The sphere has a radius of 5 inches. What is the ratio of the volume of the cone to the volume of the sphere? Leave your ...
Sunday, March 6, 2011 at 7:33pm by Jessica

geometry
Given two spheres, if the volume of the first sphere is 36r, and the volume of the second sphere is 288r, what is the relation of the second radius to the first radius?
Monday, August 1, 2011 at 1:25pm by sonia

physics
The idea is that inside the sphere, the only charge that counts is what is inside the radius you are at. That looks like it is at the center and is the charge density times the volume inside the radius you are at. Outside the sphere, the entire charge, the density times the ...
Thursday, February 28, 2008 at 9:19pm by Damon

maths
Multiply the volume by the density. The volume is the difference between that of a 5.0 cm radius sphere and a 4.8 cm radius sphere. M = (4/3)*pi[5.0^2 - 4.8^2](cm^3)*11.4 g/cm^3
Wednesday, December 26, 2012 at 6:47am by drwls

physics
How do i put them all in sig fig form??? What is the volume in cubic cm of a sphere with radius 2 cm? is it = 33.51032163829112 What is the area in m2 of a triangle with base 2.8 m and height of 10.4 m? is it = 14.56 A sphere has a volume of 106 cm3. What is its radius (in cm...
Tuesday, August 25, 2009 at 12:04am by Yulia

Calculus (Parts A and B done, just help with C)
The radius, r, of a sphere is increasing at a constant rate of 0.05 meters per second. A. At the time when the radius of the sphere is 12 meters, what is the rate of increase in its volume? B. At the time when the volume of the sphere is 36pi cubic meters, what is the rate of ...
Tuesday, January 17, 2012 at 7:37pm by Mishaka

calculus
A little investigation will lead you to the formula that if a hole of radius r is drilled through a sphere of radius R, the remaining volume is just 4pi/3 (R^2 - r^2)^(3/2) In this case, that would be 4pi/3 * 3√3 = 4√3 pi __________________________ You might also ...
Thursday, December 8, 2011 at 1:34pm by Steve

Math
Diameter=2*Radius Radius=Diameter/2 Radius of first sphere R1=12 Radius of second sphere R2=D2/2=12/2=6 R1/R2=12/6=2 R1/R2=2 Area of sphere=4*pi*R^2 Area of first sphere A1=4*pi*12^2= 4*pi*(2*6)^2=4*pi*4*6^2 Area of second sphere A2=4*pi*6^2 A1/A2=(4*pi*4*6^2)/(4*pi*6^2)=4 A1/...
Wednesday, March 2, 2011 at 10:24pm by Bosnian

Geometry 10th
A cone is inscribed in a sphere with a radius of 5 centimeters.The distance from the center of the sphere to the center of the base of the cone is x. Write an expression for the volume of the cone in terms of x (Hint: Use the radius of the sphere as part of the height of the ...
Tuesday, April 17, 2012 at 10:55pm by CP

Biology
Assume the cell is a sphere. The volume inside a sphere is given by the formula V = 4/3 pi r^3 where r is the radius of the sphere. This formula was first derived by Archimedes, who showed that the volume of a sphere is two-thirds that of a circumscribed cylinder. (This ...
Monday, March 30, 2009 at 7:51pm by PsyDAG

Calculus
A ball of radius 12 has a round hole of radius 6 drilled through its center. Find the volume of the resulting solid. I tried finding the volume of the sphere and the volume of the cyclinder then subtract however that did not work.
Monday, April 27, 2009 at 4:24pm by Anonymous

math
Does not matter shape, as long as the shape is the same. Only the size changes. The volume changes as the cube of every length measurement change ratio. here is a sphere with 2 cm radius: vol = (4/3) pi (2^3) here is a sphere with 4 cm radius (k = 2) vol = (4/3) pi (4)^3 2^3...
Sunday, December 14, 2008 at 2:15pm by Damon

Math Calculus
A sphere is initially measured as having a radius of 4 inches. A subsequent measurement shows that the radius is really 3.99. Find (a) the actual difference in volume between the initial measurement and the correction, and (b) the difference as estimated through differentials...
Friday, July 8, 2011 at 11:36am by Megan

physics
A solid nonconducting sphere of radius 13 cm has a positive charge 9.8 10-8 C spread uniformly throughout its volume. The electric field at a point within the sphere at a radius 5.0 cm has a magnitude of
Tuesday, January 15, 2013 at 8:27pm by adam h.

math
A balloon in the shape of a sphere is deflating. Given that t represents the time, in minutes, since it began losing air, the radius of the ballon (in cem) is r(t)=16-t. Let the equation V(r)= 4/3 pi r^3 represent the volume of a sphere of radius r. Find (V (open dot) r)(t)
Friday, March 12, 2010 at 8:06am by andrea

MATH
A sphere has five times the volume of a right cone that has a radius of 4.6 cm and a height of 7.7 cm. Determine the radius of the sphere to the tenth of a centimetre. This question is multiple choice and these were the options: A. 2.2cm B. 3.4cm C. 5.9cm D. 9.3cm I was sure ...
Tuesday, October 5, 2010 at 7:54pm by Anonymous

GEOMETRY
Sphere and hemisphere have same volume. Radius of sphere =7cm
Wednesday, February 16, 2011 at 12:32am by reshma

math
If the radius of the sphere above is 5 inches, what is the volume of the sphere? (Assume pi = 3.14)
Thursday, October 28, 2010 at 10:25am by anonymous

Math
A pyramid is inscribed in a cube whose volume is 52pi cm^3. The volume of a sphere is equal tpo the volume of this pyramid. Find the volume of a second cube whose edge is equal to the radius of the sphere.
Monday, May 30, 2011 at 10:33am by Eli

Math
A pyramid is inscribed in a cube whose volume is 52(pi) cm^3. The volume of a sphere is equal to the volume of this pyramid. Find the volume of a second cube whose edge is equal to the radius of the sphere.
Tuesday, May 31, 2011 at 12:58am by Joe

Math
If a sphere has radius 5 m. what is the volume of the sphere?
Monday, January 17, 2011 at 8:31pm by pop

Math
If a sphere has radius 5 m. what is the volume of the sphere?
Tuesday, January 18, 2011 at 1:19pm by freddy

Physics
2) A solid nonconducting sphere of radius R = 5.6cm has a nonuniform charge distribution or volume charge density p= (1.41pCm^-3)r/R, where r is the radial distance from the sphere's center. a) What is the sphere's total charge? b) Calculate AND sketch a graph of E versus r.
Wednesday, November 24, 2010 at 12:31pm by Ri

physics
recall that the volume of a sphere (geometry of the ball) is given by V = (4/3)πr^3 where r = radius π = 3.14 (constant) thus to get radius, we need to first get the volume from the given mass and density. recall that density is just mass per volume, or d = m/V ...
Sunday, May 15, 2011 at 4:06am by Jai

geometry
Given two spheres, if the volume of the first sphere is and the volume of the second sphere is 36 , which is the relation of the second radius to the first?
Sunday, November 8, 2009 at 10:48pm by Chelsea

Calculus
V=4/3 pi r ^3 is the formula for the volume of a sphere. Find dV for a sphere if the radius of 10" is increased by .1" Please help. I have no idea how to do this problem!
Monday, November 14, 2011 at 5:41pm by Michael

Math
The surface area and the volume of a sphere are both 3 digit integers times π. If r is the radius of the sphere, how many integral values can be found for r?
Thursday, December 26, 2013 at 5:38pm by Xian

physics HELP MEEE SO CONFUSED
The electric potential inside the sphere will be the same as it is on the surface so a=c. You can use the equation V=q/(4pi*8.89e-12*r) to find the potential where r is the radius from the center if that radius is greater than or equal to the radius of the sphere and q is the ...
Tuesday, February 7, 2012 at 8:46pm by Epsilon

physics electricity & magnetism
Charge Q=4 micro-coulombs is distributed uniformly over the volume of an insulating sphere of radius R=.05 meters. What is the potential difference between the center of the sphere and the surface of the sphere? How do I approach this problem? I tried integrating dV=-Edr from ...
Saturday, December 3, 2011 at 4:02pm by cooper

geometry
If given 2 spheres, if the volume of the first sphere is 3/4 and the volume of the second sphere is 36, which is the relation of the second radius to the first?
Sunday, May 22, 2011 at 10:34pm by alex

Calculus
Hi there i am having some problems trying to do my calculus homework and i really need help on how to show the step to proof the volume of a sphere which is V= 4/3pirsquare. But I have to use triple integral to proof the volume of a sphere. Please help me and give me some good...
Wednesday, November 25, 2009 at 9:24am by shylo

Physics - Astronomy
What (decimal) fraction of a hypothetical spherical planet's volume does a planetary core with a radius of 70% of that planet's radius have? Round off answer to three decimal places. [Hint: the volume of a sphere is equal to 4/3 pi times the radius cubed]
Thursday, November 15, 2012 at 12:50am by Leslie

calculus
The radius of a spherical balloon is increasing at a rate of 2 centimeters per minute. How fast is the volume changing when the radius is 8 centimeters? Note: The volume of a sphere is given by 4(pi)r^3
Monday, October 3, 2011 at 7:04pm by Anonymous

Calculus
The diameter of the sphere is decreasing at 0.2 cm/min. This means that its radius is decreasing by 0.1 cm/min. We also know its current radius is 8 cm. The formula for the volume of a sphere is: V= (4/3)*Pi*r^3 So, we can calculate the volume difference in 1 minute, by ...
Thursday, September 24, 2009 at 7:54pm by Christiaan

PHYSICS
A 494 kg uniform solid sphere has a radius of 0.390 m. Find the magnitude of the gravitational force exerted by the sphere on a 49.1 g particle located (a) 1.45 m from the center of the sphere 1 ? N (b) at the surface of the sphere 2 ? N (c) 0.200 m from the center of the ...
Monday, March 21, 2011 at 3:24pm by Steve

Calculus
Draw a diagram, with the top of the cone at the top of the sphere. If the cone extends past the diameter of the sphere of radius R, its base will have a radius r, and height h > R. From the center of the sphere, draw a radius to the base of the cone. Then r^2 + (h-R)^2 = R^...
Sunday, October 16, 2011 at 5:41pm by Steve

science
A sphere of radius 4 cm iss carved from a homogenous sphere of radius 8cm and mass 160g. the mass of the smaller sphere is
Monday, September 24, 2012 at 11:46pm by navneet

geometry
The formula that you need for the radius of the inscribed sphere can be found in the link below, but deriving it would be rather difficult: http://en.wikipedia.org/wiki/Icosahedron Once you have the radius, compute the sphere volume in the usual way. The Wikipedia reference ...
Wednesday, January 20, 2010 at 5:07pm by drwls

Science/Math
hemisphere boat has max volume (buoyancy by Archimedes principle) for given surface area. sphere V = (4/3) pi r^3 area A = 4 pi r^2 V/A = r/3 so you make the radius as big as possible, spreading the clay out so it almost leaks To show that a sphere is optimum is more ...
Sunday, April 24, 2011 at 6:39pm by Damon

I need help on a geometry cone/frustrum problem
A sphere with radius 3 is inscribed in a conical frustum of slant height 10. (The sphere is tangent to both bases and the side of the frustum.) Find the volume of the frustum. Could someone help me? I can't find the radius of the cone....
Saturday, February 16, 2013 at 7:04pm by Knights

Maths B
make a sketch let the radius of the cylinder be r, let the height of the cylinder be 2h , (avoiding fractions that way) then r^2 + h^2 = R^2 , ---> r^2 = R^2 - h^2 vol of cyl = πr^2(2h) = 2π(R^2 - h^2)h = 2π(hR^2 - h^3) d(vol)/dh = 2π(R^2 - 3h^2) = 0 for...
Tuesday, November 2, 2010 at 10:06pm by Reiny

physics
A solid sphere of mass m and radius r rolls with out slipping along the track.it starts from rest with the lowest point of tthe sphere at aheight h above the bottom of the loop of radius R,much larger than r.(a) what is the minimum value of h (interms of R)such that the sphere...
Saturday, January 12, 2013 at 4:30pm by Anonymous

Geometry
Find out the volume of each sphere. V = (4/3)(pi)(r^3) Multiply by 4. Use the same formula to find the radius of the new sphere.
Sunday, August 15, 2010 at 7:45pm by Ms. Sue

surface area and volume
I really need some help, I don't fully understand. Exspecially with fractions, don't know how to enter them on calculator. 1. What is the approximate volume of the sphere? 524 m (my choice) 1,000 m 1,256 m 1,570 m 2. What is the approximate surface area of the sphere? 225 ...
Sunday, April 29, 2012 at 11:15am by lilman

calculus
The way I read this: A spherical cap is cut off giving a truncated sphere as bobpursley suspected. Look at http://en.wikipedia.org/wiki/Spherical_cap to see how we can find the volume of that cap. Volume = (πh/6)(3a^2 + h^2) , where a is the radius of the circular base of...
Saturday, August 6, 2011 at 7:18am by Reiny

math
let r = radius of cylinder when you draw a sphere that fits exactly inside a cylinder, you will observe that radius of cylinder = radius of sphere, and height of cylinder = diameter of sphere recall that surface area of sphere = 4*pi*r^2 and lateral surface area of cylinder = ...
Tuesday, March 29, 2011 at 11:07am by Jai

GEOMETRY
Rs = sphere radius; Rh = hemisphere radius Hemisphere volume = Sphere volume (pi/12)(Rh)^3 = (pi/6)Rs^3 (Rh/Rs)^3 = 2 Rh/Rs = cube root of 2 = 1.260 Rs = 5.556 cm
Wednesday, February 16, 2011 at 12:32am by drwls

math --- check my work!
1.Find the surface area for a sphere with a radius of 10 feet. Round to nearest whole number. 1,256 ft2*** 4,189 ft2 1,089 ft2 1,568 ft2 2.Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. 1,257 ft3 4,187 ft3*** 1,089 ft3 1,568 ft3 3.Find...
Wednesday, March 19, 2014 at 5:12pm by TTR+S<3

Science
One edge of a copper cube is carefully measured and found to be 2.162 cm. An atom of copper is a sphere 0.2560 nanometers in diameter. Assuming that the volume of the cube contains nothing but copper atoms, how many copper atoms are contained in the cube? (the volume of a cube...
Saturday, September 24, 2011 at 8:27pm by Laurel

pre calc
d^2 = (30t)^2 + (40t)^2 = 2500t^2 d = 50 t (did you notice that the triangle is the 3:4:5 right-angled triangle? ) #2 volume(cylinder) = πr^2 h make a sketch, let the radius of the cylinder be r the radius of the sphere R, and the height of the cylinder as h let 2H = h , ...
Tuesday, September 18, 2012 at 8:25pm by Reiny

calculus
Find the volume that remains after a hole of radius 1 is bored through the center of a solid sphere of radius 2.
Thursday, December 8, 2011 at 1:34pm by Jane

math
the formula for the volume of a sphere is (4/3)pie r^3 So, (4/3) * 3.14 * r^3 to find the radius, divide the diameter by 2, so it has a readius of 5 ft Now, plug in the numbers to the formula and solve. That is the answer for the volume of that sphere. NOW, you want to know ...
Friday, September 24, 2010 at 3:31pm by Lynnette

Calculus
Make a diagram. let the radius of the cone be x, let the distance from the base of the cone to the centre of the sphere by y, then the height of the cone is y+10 draw a line from the centre of the sphere to the end of the radius of the cone. You now have a right-angled ...
Monday, March 9, 2009 at 8:01pm by Reiny

math
The earth has a radius of 6,380 km. The formula for the volume of a sphere is �� V = 4/3 x^3, and the formula for surface area of a sphere is A = 4x^2 . Find the volume and surface area of the earth and write the answer in scientific notation with two numbers ...
Wednesday, November 3, 2010 at 11:08am by james

math (calculus)
A cap of a sphere is generated by rotating the region about the y-axis. Determine the volume of this cap when the radius of the sphere is 5 inches and the height of the cap is 1 inch.
Sunday, February 13, 2011 at 6:01pm by ellen

math (calculus)
A cap of a sphere is generated by rotating the region about the y-axis. Determine the volume of this cap when the radius of the sphere is 5 inches and the height of the cap is 1 inch.
Sunday, February 13, 2011 at 6:08pm by ellen

Maths B
Hi, i was just wondering if you could help me with how to work out this question, as i have attempted and get a bit confused at the end. here it is: A cylinder is inside a sphere- the sphere has a radius of R. What is the maximum volume of the cylinder? Thanks - really ...
Tuesday, November 2, 2010 at 10:06pm by Jess

Geometry
recall some formulas: Volume of Sphere = (4/3)*pi*(r^3) Surface Area of Sphere = 4*pi*(r^2) since we do not know the value of radius, we get it from the surface area: 804 = 4*pi*r^2 now solve for r with your calculator~ after solving r, plug in this value to the formula for ...
Monday, March 7, 2011 at 6:27pm by jai

ryan
You propose to build a space ship that allows the entire population of the United States (280 million) to leave earth. Your plans allocate an average space of 1,000(=10*10*10) cubic feet to each person. You space ship is going to have the shape of a sphere. The radius of you ...
Friday, October 8, 2010 at 5:07pm by math word problem

Pre-Algebra
For numbers 13, find the indicated measurement of the figure described. Use 3.14 for (pi) and round to the nearest whole number. 1) Find the surface area of a sphere with a radius of 8 cm. a. 268 cm2 b. 804 cm2 c. 2,144 cm2 d. 201 cm2 2) Find the surface area of a sphere with...
Wednesday, March 13, 2013 at 3:36pm by Selena

Pre-Calculus
As a balloon in the shape of a sphere is being blown up, the radius is increasing 1/pi inches per second. At what rate is the volume increasing when the radius is 1 inch? I know that the volume of a sphere = 4/3(pi)r^3 I don't know what to do next. Figure dV/dt dV/dr *dr/dt= ...
Wednesday, May 30, 2007 at 12:07am by Corin

PHYSICS URGENT DUE IN 15 MINUTES
The figure below (a) shows a sphere with a radius of r = 157 mm (density = 1.24 g/cm) suspended in water by a string. The ball is completely submerged in the water and the string is attached from the bottom of the water tank to the bottom of the sphere. What is the tension ...
Thursday, March 24, 2011 at 11:06pm by Anonymous

Calculus I
*Optimization problem* [I don't know how to get to the answer] Problem: You have a cylindrical can with radius 4cm and height 10cm. Inside is a marble with a radius that has to be larger than 0 but less than 4 cm (even the largest marble will fit entirely). You're filling it ...
Monday, November 12, 2012 at 1:11am by Ken

physics
Whoops, sorry, was thinking charge on surface of sphere. If uniformly distributed throughout the volume, then my answer is the same outside the sphere However inside the sphere you will surround chagres the will look as if they are at the center The amount you surround will be...
Thursday, February 28, 2008 at 9:19pm by Damon

MATH
First, do not use all capitals. It is harder to read and is equivalent to SHOUTING online. Volume of cylinder 6" high and 2" in diameter minus volume of three balls, each with a 1" radius. Cylinder volume = pi * r^2 * h Sphere volume = 4/3 pi * r^3 You can do the calculations.
Thursday, March 4, 2010 at 12:25pm by PsyDAG

Pre-Algebra
1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,256 ft2 b. 4,189 ft2 c. 1,089 ft2 d. 1,568 ft2 2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,257 ft3 b. 4,187 ft3 c. 1,089...
Tuesday, March 12, 2013 at 10:24pm by Destiny

Math
A sphere is inscribed in a right cone. The slant height of the cone = the diameter of the base of cone. If the radius of the sphere is r, find the volume of the cone in terms of r.
Thursday, March 22, 2012 at 12:06am by Maya

math
volume of sphere = (4/3)πr^3 water displaced by a sphere of radius r/2 = (4/3)π(r^3/8 = πr^3 /6
Wednesday, March 14, 2012 at 6:09am by Reiny

math
direct variation the surface area of a sphere varies directly as the square of the radius. if the surface area of a sphere is 36 pi meters squared when the radius is 3 meters, what is the surface area of a sphere with a radius of 6 meters? S=k*r^2 solve for k first.
Monday, May 21, 2007 at 10:04pm by anonymous

Pre-Algebra
1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,256 ft2 b. 4,189 ft2 c. 1,089 ft2 d. 1,568 ft2 2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,257 ft3 b. 4,187 ft3 c. 1,089...
Wednesday, March 13, 2013 at 1:58pm by Alexa

Help Damon Ms.Sue
1.Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. 1,256 ft2 4,189 ft2 1,089 ft2 1,568 ft2 2.Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. 1,257 ft3 4,187 ft3 1,089 ft3 3.Find the surface...
Thursday, March 14, 2013 at 1:48pm by Lila

Geometry
A plane intersects a sphere that has a radius of 13cm. The distance from the center of the sphere to the closest point on the plane is 5 cm. What is the radius of the circle that is the intersection of the sphere and the plane? A. 8cm B. 10cm C. 12cm D. 13cm Could please shed ...
Thursday, May 19, 2011 at 11:09pm by Chica

Geometry
Four identical metal spheres, each with radius 6 cm, are melted and reshaped into one big sphere. Fine the radius of the new sphere.
Sunday, August 15, 2010 at 7:45pm by Kyle

Calculus
A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is a maximum. (HINT: show that the volume of the ...
Monday, May 6, 2013 at 7:11am by Grant

Physics
A hollow sphere of radius 25 cm is rotating at 13 rad/ sec about an axis that passes through its center. The mass of the sphere is 3.8 kg. assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?
Sunday, July 8, 2012 at 10:20pm by hayley

math
1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b) r.(6,3,2)=28 (c) 5x-3y-2z=28 (d) r.(6/7,-3/7,2/7) 2. Sphere (x-1)+(y-5)+(z-2)=49 and planr r.(-2,-6,-3)=0 form which circle?(a) (x-1)+(y-5)+(z-2)=19.53 (b) C(0,0,0), radius=4.42 (c) radius=4.42, C...
Thursday, March 11, 2010 at 4:31pm by Anonymous

maths
1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b) r.(6,3,2)=28 (c) 5x-3y-2z=28 (d) r.(6/7,-3/7,2/7) 2. Sphere (x-1)+(y-5)+(z-2)=49 and planr r.(-2,-6,-3)=0 form which circle?(a) (x-1)+(y-5)+(z-2)=19.53 (b) C(0,0,0), radius=4.42 (c) radius=4.42, C...
Friday, March 12, 2010 at 1:36am by Anonymous

chemistry
what is the volume of a sphere that has a radius, r = 3 in.
Monday, July 30, 2012 at 11:36am by bryce

Math
Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.
Saturday, October 31, 2009 at 9:57am by Brandi

geometry
Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.
Thursday, October 14, 2010 at 2:54pm by Anonymous

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