Saturday

April 19, 2014

April 19, 2014

Number of results: 10,611

**PRE-CALC help please**

A pedal socket has a radius of 4 in and the wheel socket has a radius of 2 in. The wheel has a radius of 13 in. The cyclist pedals at 30rpm Find the angular speed of the socket. Find the speed of the bicycle- (assuming the weel turns the same as the wheel socket)
*Friday, November 8, 2013 at 7:25pm by mello*

**PRE-CALC help please**

A pedal socket has a radius of 4 in and the wheel socket has a radius of 2 in. The wheel has a radius of 13 in. The cyclist pedals at 30rpm Find the angular speed of the socket. Find the speed of the bicycle- (assuming the weel turns the same as the wheel socket)
*Friday, November 8, 2013 at 9:06pm by mello*

**Physics**

Consider a conducting spherical shell with inner radius b = 0.862 m and outer radius c = 1.21 m. There is a net charge q2 = 3.82 ìC on the shell. At its center, within the hollow cavity, there is a point charge q1 = 2.89 ìC. Determine the flux through the spherical Gaussian ...
*Sunday, March 20, 2011 at 10:34am by Alicia*

**physics**

a metal cylinder is heated and then cools. if the radius always equals the height, find the expression for the instantaneous rate of change of volum V with respect to the radius r.
*Monday, March 29, 2010 at 1:17pm by luis*

**math**

a circular track has a radius of 100ft. elena wants to run 2 miles. There are 5,280 ft in a mile. Can you find the circumference of a circle if you know the radius? explain your answer
*Tuesday, March 1, 2011 at 8:43pm by daisy*

**Pre Calculus**

speed= radius*distance/time = radius*(2PI*4+PI/4)/(1/12) that gives it to you in feet/hour. no change it to mph by dividing by 5280
*Monday, March 7, 2011 at 12:11pm by bobpursley*

**Chemistry**

E in joules = kq1q2/d k you have in the problem q1 = 2 q2 = 2 d = radius anion + radius cation = 1.84+0.31 = ? and convert to meters. Substitute and solve.
*Thursday, November 3, 2011 at 10:08pm by DrBob222*

**math**

Volume of a cylinder =πr²h where r=radius of the base, h=height. Hint: 4 cm wide means that the diameter is 4cm, so the radius is half that, or 2cm.
*Thursday, March 1, 2012 at 7:14pm by MathMate*

**chemistry**

Answer the following for a primitive cubic unit cell. Answers should be numerical, set r = 7.0. edge in terms of r, the lattice pt radius=? face diagonal in terms of r, the lattice pt radius=? body diagonal in terms of r, the lattice pt radius=?
*Monday, February 16, 2009 at 3:13pm by leah*

**gravity**

You are an astronaut in the space shuttle pursuing a satellite in need of repair. You are in a circular orbit of the same radius as the satellite (450 km above the Earth), but 24 km behind it. How long will it take to overtake the satellite if you reduce your orbital radius by...
*Saturday, November 19, 2011 at 2:17pm by mje*

**physics**

A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane. Find the coin's period T in seconds, that is, the time...
*Monday, July 29, 2013 at 8:08am by Anonymous*

**Physics**

I've been stuck on this equation for a while and I don't know if i'm missing a key part to the equation.. i just need help! If the gravitational field strength at the top of Mount Everest is 9.772 N/kg, approximately how tall (in feet) is the mountain? F= g ( m1 x m2)/ radius^...
*Monday, January 21, 2013 at 10:51am by Larry*

**Astronomy**

1. At opposition, Nursat(is observed to be in opposition every 374 days.) is observed to subtend an angular radius of 7.1523 arcseconds. Use this and the conversion factors in our Table of Constants to find the radius of Nursat in km. 2. Nursat has a moon, Sunaj, which is ...
*Monday, December 9, 2013 at 3:46pm by keitanako*

**calculus**

A potter forms a piece of clay into a right circular cylinder. As she rolls it, the height h of the cylinder increases and the radius r decreases. Assume that no clay is lost in the process. Suppose the height of the cylinder is increasing by 0.5 centimeters per second. What ...
*Sunday, March 31, 2013 at 3:56pm by mike*

**physics**

A UNIFORM RING OF MASS M AND RADIUS R IS ROLLING WITHOUT SLIPPING ON A HORIZONTAL SURFACE.FIND THE RADIUS OF CURVATURE OF TRAJECTORY TRACED OUT BY THE HIGHEST POINT?
*Thursday, November 4, 2010 at 2:51am by Anonymous*

**Physics**

Two spheres are cut from a certain uniform rock.One has radius 4.50 cm.The mass of the other is five times greater. Find its radius.
*Saturday, September 24, 2011 at 11:23am by Amy*

**Math**

The size to which a pumpkin grows while on the vine is probably problematic, as our current visiting POLY pumpkins demonstrate. What if we were watching a pumpkin on the vine grow over time and that its shape was totally spherical. Now for your five (5) tasks: 1. Initially we ...
*Saturday, April 20, 2013 at 10:24am by Tho*

**I need help on a geometry cone/frustrum problem**

I haven't come up with a good geometric solution, but it sems fairly straightforward algebraically. Draw a cross-section. Place a circle at (0,0) with radius 3. Draw the horizontal lines y=3 and y=-3. These will be the top and bottom of the frustrum. The radius from (0,0) to (...
*Saturday, February 16, 2013 at 7:04pm by Steve*

**Pre-Calculus**

The surface ares S (in square meters) of a hot air ballon is given by s(r)=4 pi r^2 where r is radius of balloon (in meters). If the radius r is increasing with time (in seconds) according to the formula r(t) = 2/3t^3, t is greater than or equal to 0, find the surface area S ...
*Tuesday, October 3, 2006 at 12:18pm by Erica*

**Algebra!!**

1.a swimming pool has a radius of 10 feet and a height of 4 feet. What is the volume? 2.What is the volume of a soup can with a radius of 4cm and a height of 16cm? 3.What is the volume of a triangular prism with a length of 10cm a width of 15cm and a height of 10cm? 4.What is ...
*Saturday, March 31, 2012 at 1:18am by Renee*

**astronomy**

Using the densities below, find what percentage of the Earth's mass is contained in its core. If Earth's core were adjusted in radius so that the core contained forty percent of the mass, by what factor would the radius of the Earth change compared with its actual radius? (...
*Tuesday, November 22, 2011 at 6:23pm by roach*

**physics**

If a spherical shell has a uniform volume density of 1.84nC/m^3, inner radius a=.1m, outer radius b=.2m, what is magnitude of electric field at radial distances r=a, r=b, r=3b
*Monday, February 6, 2012 at 5:47pm by amy*

**Calculus**

A cicular metal plate is being heated and expands so that its radius increases at the rate of 0.25 mm/min. How fast is the area increasing when the radius is 10 cm?
*Saturday, March 10, 2012 at 1:43pm by Candy*

**Calculus**

A spherical ball is being filled with air. When the radius r=9cm, the radius is increasing at a rate 4 cm/s. How fast is the volume changing at this time (leave your answer approximate)?
*Monday, November 12, 2012 at 7:53pm by Jax*

**math**

A spherical ball is being filled with air. When the radius r=7cm, the radius is increasing at a rate 2 cm/s. How fast is the volume changing at this time (leave your answer approximate)?
*Monday, November 12, 2012 at 10:30pm by Rav*

**math**

New point: (20, -28). Slope of line going through the origin and (5, -7) is -7/5, which makes the radius of that circle sq rt of 74, or (74)^(1/2). The new radius will be 4*(74)^(1/2). Assuming that the length of the x coordinate (and Y!) is proportional to the radius, that ...
*Wednesday, March 27, 2013 at 4:00pm by Wayne*

**physics**

A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane (see the figure below). Find the coin's period T in ...
*Sunday, July 28, 2013 at 9:36pm by Anonymous*

**calculus**

It depends on the radius of convergence. If the series has a radius of convergence of ∞ such as the series for sin(x), cos(x), and exp(x), you can evaluate f(x) where x equals any defined value, even though the series are expanded about an arbitrary value x0. In the ...
*Tuesday, March 15, 2011 at 8:16pm by MathMate*

**Math (geometry)**

Since the line is tangent at a point to the circle, then the point lies on the circle. Also, since you know the center, the radius is simply the distance between the points (0,0) and (3,4). a) So, radius=d=sqrt((3-0)^2+(4-0)^2)=5 b) x^2+y^2=25 c) Observe that the radius is ...
*Wednesday, April 30, 2008 at 7:09pm by JP*

**trig**

arc length is not measured in "radians", but rather in linear units if the angle is 1 radian, then the arclength supported by that 1 radian is 1 radius.. arclength = (radius)*(angle in radians) BTW, that is the definition of 1 radian angle, the central angle of a sector with ...
*Wednesday, April 16, 2008 at 10:50pm by Reiny*

**Physics Find mass and radius of planet.**

While visiting Planet Physics, you toss a rock straight up at 15 m/s and catch it 2.4 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 240 min. What is the mass of Planet Physics? What is the radius of Planet Physics?
*Monday, April 5, 2010 at 2:11am by Mike*

**Science**

density= mass/volume=mass/(height*radius^2*pi) of course, radius is one half of diameter.
*Sunday, September 16, 2007 at 8:53pm by bobpursley*

**physics**

Use the .5m radius to calculate the moment of inertia. Use the radius of .4 (or on b of .2) to find tangential speed (w*r)
*Thursday, October 30, 2008 at 6:30am by bobpursley*

**Math/Science**

Rearrange the equation to isolate the r. (what is the equation to find the radius?) C=2piR Circumfrence= 2(pie)(radius)
*Tuesday, November 25, 2008 at 8:24pm by connor*

**math**

how many circleswith radius 2 cm will have the sametotal area as a circle with the radius 4 cm ? please help i am confused
*Thursday, April 15, 2010 at 5:16pm by Katherine*

**math**

how do you work out a radius and diameter dont know at all there is a circle with the number 5mm and they want me to tell them what the radius is and the diameter
*Tuesday, January 25, 2011 at 10:14pm by t.c*

**Geometry**

Find the area of the regular polygon with the given radius. Radius: 6cm. Area= apothem x perimeter/ 2
*Monday, March 19, 2012 at 12:50am by Ashley*

**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?
*Friday, February 8, 2013 at 9:21am by priyanka*

**math**

If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters?
*Thursday, March 7, 2013 at 11:40am by Jessica*

**Math**

Find the center and radius of the circle with equation x2 + y2 - 6x + 10y + 9 = 0. center ( ? , ? ) radius ?
*Sunday, January 19, 2014 at 1:16pm by Carol*

**Math **

For a circle of radius r, the arc length of central angle θ is given by rθ. For a circle of unit radius (i.e. radius=1), r=1, therefore the arc length equals the central angle. I hope this confirms what you were enquiring.
*Sunday, October 10, 2010 at 7:45pm by MathMate*

**Math**

If the diameter of a wheel is 10 inches. What is the radius and how would I find its circumference. Thanks I do understand that the radius is twice the circumference.
*Tuesday, March 15, 2011 at 7:06pm by Americal*

**calculus**

A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius of the cirlce?
*Thursday, May 19, 2011 at 10:18pm by Kristina*

**calculus**

A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius of the cirlce?
*Thursday, May 19, 2011 at 10:21pm by Kristina*

**math**

find the center and radius of a circle given the equation in general form x^2+y^2+4x-6y+2=0. center: ? radius: ?
*Monday, August 1, 2011 at 7:34pm by Jen*

**Geometry**

Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
*Monday, March 19, 2012 at 12:52am by Anonymous*

**Geometry **

Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
*Monday, March 19, 2012 at 12:53am by Anonymous*

**physics**

mass= density*volume= density*thickness*PI*radius squared. solve for diameter (twice radius)
*Thursday, May 31, 2012 at 7:22pm by bobpursley*

**math**

The height of a cylinder is three times its radius. Find a function that models the volume V of the cylinder in terms of its radius r.
*Friday, October 5, 2012 at 12:46am by monic*

**Math**

What is the formula to figure the radius of the following: 50 feet of wire how do you figure the circumference and the radius
*Thursday, May 8, 2008 at 9:22pm by Debby*

**Math**

Give the equation of the circle with the given center and radius: Center at (1, 2) Radius is 1/2 I know that you are to use either (x-h)^2+(y-k)^2=r^2 or x^2+y^2=r^2, but I do not know how to do this? Can anyone help
*Friday, February 19, 2010 at 5:42pm by rmz*

**Chemistry**

Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?
*Saturday, November 20, 2010 at 2:12pm by danny123*

**MATH**

I NEED HELP WITH FINDING THE FORMULA FOR PROBLEMS DEALING WITH RADIUS AND DIAMETER. The radius is 12 in and the diameter is 4 in.
*Sunday, June 5, 2011 at 11:12pm by kayla*

**Algebra**

volume is proportional to height*radius^2 double radius, volume is quadrupled 19*4 cm^3
*Saturday, February 18, 2012 at 5:34pm by bobpursley*

**Physics**

force*radius=torque=momentinertia*angularacceleration angular acceleration=force*radius/momentI
*Sunday, July 8, 2012 at 7:07pm by bobpursley*

**geometry**

inside wheel at radius r outside wheel at radius 2 r because circumference is twice so r = 6 so 2 pi r = 12 r
*Tuesday, November 20, 2012 at 11:39am by Damon*

**Algebra**

Find the equation of the circle having the given center and radius. center (-5,1), radius 6 squared.
*Saturday, September 14, 2013 at 2:07pm by Ruth*

**Physics**

the acceleration at 1 radius is 9.8 Since F=k/r^2, half the value means 1/√(1/2) = √2 times the radius.
*Tuesday, December 3, 2013 at 11:18am by Steve*

**physics**

I get an angular velocity after 5.0 seconds of 8.273 rad/s. The angular acceleration is 1.655 rad/s. The three inch radius is 0.0762 meters. I believe yu confused the diameter with the radius. The tangential velocity after 5 seconds is the radius times 8.273 rad/s
*Sunday, March 28, 2010 at 1:21am by drwls*

**math**

speed=distance/time=PI*68cm/.3333sec acceleration= speed^2/radius of course, radius is still half diameter.
*Wednesday, September 10, 2008 at 3:53pm by bobpursley*

**Math(Please check)**

Find the center (h,k) and radius of the following circle. x^2 + y^2 - 6x - 2y + 1 = 0 My answer is center= (-3,-1) and radius of 1. Am I correct?
*Wednesday, October 6, 2010 at 8:19pm by Hannah*

**Algebra**

you should really learn to recognize the centre and radius of the circle if the equation is written in that standard form centre: (-3,5) radius : 4
*Thursday, October 7, 2010 at 7:08pm by Reiny*

**Physics**

Centripetal acceleration in a circular orbit of radius R is a = V^2/R You can get V from the orbit radius, R, and the period, P. V = 2*pi*R/P Make sure P is in seconds when you compute V.
*Thursday, October 14, 2010 at 9:22pm by drwls*

**geometry**

sphere: radius = s cone: radius c, height h 4π/3 s^3 = π/3 c^2 h 4s^3 = c^2 h 4(12^3) = (32^2)h h = 4*4^3*3^3/2^10 = 3^3/2^2 = 27/4 = 6.75
*Thursday, April 12, 2012 at 2:23pm by Steve*

**Microsoft Infrastructure**

You remember learning that remote RADIUS server groups offer some benefits to a network with multiple RADIUS servers. Research those benefits and decide if making changes to your network is necessary. Describe the findings of your research concerning the benefits of remote ...
*Wednesday, November 21, 2012 at 12:05am by Mary*

**trig**

Both circles have the same center and radius of the larger cirlce is R. if the radius of the msaller circle is 3 units less than R, whic of the following represent the area of the shaded region?
*Friday, October 24, 2008 at 12:50pm by Sergio*

**Physics**

On a banked race track, the smallest circular path on which cars can move has a radius of 115 m, while the largest has a radius 165 m, as the drawing illustrates. The height of the outer wall is 18 m.
*Wednesday, November 7, 2012 at 11:26am by D*

**calculus**

Find the volume of the solid whose base is the region bounded by the graphs of y=x^3,x=1, and the x-axis, and whose cross sections perpenditular to the x-axis are semicircles. What would be the radius in this case? I thought it would just be x^3, but others are saying (x^3)/2...
*Sunday, January 7, 2007 at 3:47pm by Jin*

**ALGEBRA**

what would the equation be of an circle with the given center and radius is as follows: Center at (1,2) Radius = 1/2
*Monday, September 14, 2009 at 10:20pm by ggift*

**Math/Albebra**

Give the equation of the circle with the given center and radius. Center at (0, 0); radius = 5
*Sunday, May 16, 2010 at 7:13pm by Justin*

**Math**

The radius of circle A is 9 times greater than the radius of circle B. Which of the following statements is true?
*Wednesday, July 18, 2012 at 12:06pm by Kim*

**Physics**

Which produces the largest torque? 30.0 N perpendicular to the center of rotation at a radius of 1.5 m 30.0 N perpendicular to the center of rotation at a radius of 0.25 m 60.0 N perpendicular to the center of rotation at a radius of 1.0 m 60.0 N perpendicular to the center of...
*Wednesday, January 15, 2014 at 12:46pm by Gabe*

**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*

**physics**

radius = Infinitely large velocity 30 m/s Hoe would you compute the centripetal acceleration of with the radius being infintely large?
*Friday, April 4, 2008 at 7:50pm by Johnathan*

**math**

is the diameter 11mm? Then radius= .0055m radius^2= 5.5E-3 ^ 2=30.25 E-6m 4PIr^2= about 12*30.25E-6 m
*Thursday, September 30, 2010 at 8:13pm by bobpursley*

**math**

I had a much different answer. Did you use the radius of each circle, not the diameter? Did you use 72 inches as the radius of the garden?
*Thursday, May 19, 2011 at 10:21pm by Ms. Sue*

**Geometry**

The density of steel is about 0.28Ib/in^3. could you lift a solid steel ball with radius 4in? whith radius 6in? explain
*Sunday, September 29, 2013 at 11:13pm by George*

**Calculus**

The volume of a cone of a radius r and height h is given by V=(3.14/3)(r^2)(h). If the radius and the height both increase at a constant rate of .5 cm per second, at what rate, in cubic cm per second, is the volume increasing when the height is 9cm and the radius is 6cm.
*Thursday, November 18, 2010 at 3:22pm by Emily*

**math**

A Glass Of Water Is Being Filled With Water At The Rate Of 12 Pi Cm^3/sec And the radius of the top is 6 cm and the radius of the base is 3 cm and the height of the glass is 12 cm , find A) dh/dt and B) radius when the height of water is half?
*Thursday, August 11, 2011 at 6:33pm by jack*

**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*

**Chemistry**

Please help! Answer the following for a body centered unit cell. Crystalline Solids Program Answers should be numerical, set r = 4.0. edge in terms of r, the lattice pt radius: face diagonal in terms of r, the lattice pt radius: body diagonal in terms of r, the lattice pt radius:
*Thursday, February 17, 2011 at 7:30pm by Shawn*

**Chemistry**

Please help! Answer the following for a body centered unit cell. Crystalline Solids Program Answers should be numerical, set r = 4.0. edge in terms of r, the lattice pt radius: face diagonal in terms of r, the lattice pt radius: body diagonal in terms of r, the lattice pt radius:
*Thursday, February 17, 2011 at 7:30pm by Shawn*

**pre calc**

each of three circles touches the other 2.circle A has a radius of 8 cm. circle B has a radius of 4 cm.circle C has a radius of 1 cm.a triangle is formed by connecting the centers of the 3 triangles. determine the largest angle for the triangle and in which circle is the ...
*Thursday, December 8, 2011 at 10:27pm by bob*

**math**

A cone has a radius of 6 inches and a height of 9 inches a) calculate the volume of the cone. use pi. as my answer for part a i got 339.92 cubic inches,,,,,,, Is my answer correct ?? I need help doing part b and c. b) calculate a possible radius and height of a cylinder that ...
*Saturday, November 24, 2012 at 11:05am by karen*

**math**

What is the measurement of the height if the radius of the cylinder is 2 centimeters? Round your answer to the nearest whole number. This question has no sense to it. How is height related to radius?
*Saturday, March 10, 2007 at 7:30pm by need help*

**Physics**

The radius is R = 2.1 m. The light is distributed uniformly over a sphere of that radius, at that distance. So divide 10 W by 4*pi*R^2 and you will have the visible light irradiance.
*Monday, February 21, 2011 at 10:59pm by drwls *

**Calculus**

A tumor is assumed to be roughly spherical. If the radius R is found to be increasing at the rate of 0.5 mm/day when the radius is R=2 mm, how fast is the volume changing at this time?
*Wednesday, December 14, 2011 at 10:45pm by L.S.*

**physics**

Calculate the moment of Inertia for a ring with a mass 0.715 kg, an inner radius of 10.7 cm and an outer radius of 12.7 cm.
*Thursday, May 31, 2012 at 12:42pm by Anonymous*

**math**

Since the diameter is twice the radius, divide the diameter by 2 to get the radius.
*Monday, November 10, 2008 at 10:03pm by Ms. Sue*

**Algebra**

Give the equation of the circle with the given center and radius. Center at (0, 0); radius = 5
*Sunday, May 16, 2010 at 11:36pm by Michelle*

**Math**

Give the equation of the circle with the given center and radius. Center at (0, 2); radius = 5
*Tuesday, July 12, 2011 at 1:30pm by candy*

**Calculus**

Suppose a cylindrical can is manufactured with radius r. The manufacturing process makes the length r imprecise; r can be off by ±0.03 cm. The manufacturing process makes the height of the can precisely equal to three times the radius r (including any error in r, but not ...
*Friday, December 4, 2009 at 5:08am by Steven*

**mathematics**

What is the solution for this? The surface area of a sphere varies in direct proportion to the square of its radius. If a sphere of radius 6cm has a surface area of 452 square cm, find, to the nearest mm, the radius of a spherewith the surface area 1000 square cm.
*Saturday, October 29, 2011 at 3:30am by Richelle*

**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 *

**Physics**

The radius of the circle comes from trig: radius=length*tangent25=23*tan25 but centripetal acceleration must equal the force of gravity pushing the bob inward, so v^2/r=g*sin25 solve for v.
*Thursday, September 30, 2010 at 2:03am by bobpursley*

**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*

**Calculus**

A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?
*Monday, December 17, 2012 at 7:30pm by Anonymous*

**math **

The order of magnitude of the radius of our solar system is 10 to the 13th power meters. the order of magnitude of the radius of the visible universe is 10 to the 13th power times as great. find the approximate radius of the visible universe. can anyone explain to me how to ...
*Friday, February 17, 2012 at 12:36am by Marie *

**calc**

f(x)=x^2/4+x^3 find the power series representation...so far i found ...Óx^2n+2/4^n...is dat correct?...nd then it is asking to find the radius and interval of convergence...i found the radius to be x^2/4...so i set the radius between -1 and 1...nd then solve for x...i got x ...
*Saturday, May 5, 2007 at 2:59pm by amy*

**AP chem**

I have a problem set due tomorrow, and two problems in it were not covered in class. The first is this: Molybdenum has an atomic radius of 0.145 nm. The volume of its cubic unit cell is 0.0375 nm^3. What is the geometry of the molybdenum unit cell? I have no idea where to even...
*Thursday, December 7, 2006 at 6:04pm by chris*

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