Sunday

December 4, 2016
Number of results: 67,028

**Math (geometry)**

A diagonal of one cube is 2 cm. A diagonal of another cube is 4*sqrt3 cm. The larger cube has volume 64 cubic cm. Find the volume of the smaller cube. --------------------------------------------------------------------------------------------------- There was this theorem ...

*April 3, 2008 by Emily*

**science**

I am SOOOO stuck on this science question!! It's not that hard but, science isn't my forte..... here it is...." If the mass of the brick is 50 grams and it's volume is 9cm cubed, calculate the density of the block using the formula D = m/v." HELP PLEASE!!!!

*December 13, 2010 by Rachel Bond*

**chemisrty**

Q1) A solution of ascorbic acid (C6H8O6, Formula mass = 176 g/mol) is made up by dissolving 80.5 g of ascorbic acid in 210 g of water, and has a density of 1.22 g/mL at 55 oC. Calculate the following: a) the mass percentage of ascorbic acid b) the mole fraction of ascorbic ...

*January 16, 2012 by lyan*

**Physics**

A cube of mass M=0.703 kg is placed on an incline and given a push. It slides down, and its speed down the incline is measured at two positions, [1] and [2] on the diagram below, with V1 = 0.923 m/s and V2 = 1.207 m/s. Note that the incline passes through at least two grid ...

*February 17, 2011 by Sarah*

**chemistry**

An aqueous solution of Na2SO4 has a molal concentration of 0.293 mol kg-1. Its density is 1.0350 g mL-1. Calculate the molar concentration of Na2SO4. ----- mol L-1 Calculate the mass percent of Na2SO4 in the solution. ------- % What is the mole fraction of Na2SO4 in the ...

*May 2, 2010 by write2khin*

**chemistry**

When 2.5g of ammonium dichromate is heated, the mass of nitrogen and water vapor released is 1.0g. What is the final mass of the solid product?

*October 14, 2014 by Enid*

**physics**

Each of the following objects has a radius of 0.169 m and a mass of 2.02 kg, and each rotates about an axis through its center (as in this table) with an angular speed of 38.6 rad/s. Find the magnitude of the angular momentum of each object. (a) a hoop kg · m2/s (b) a solid ...

*March 8, 2015 by alba*

**math**

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t) =-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the solid's weight 1 ...

*October 24, 2015 by John*

**math**

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t)=-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the solid's weight 1 ...

*October 24, 2015 by John*

**chemistry**

Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom? The face-centered gold crystal has an edge length of 407 pm. Based on the unit cell, calculate the density of gold. Type of atom Fraction in...

*November 24, 2008 by ea*

**chemistry**

A solid sample is 81.0 g sodium per 1,000,000. g substance, and contains 1.92 × 10 ^21 sodium atoms, calculate the mass (g) of the sample.

*October 27, 2013 by Ale*

**Science**

1. The surface tension in a cup of water is caused by ____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its container 2. The measure of ...

*April 11, 2012 by jhai9*

**Math**

A solid is made up of two rectangular prisms how would I find the surface area of the solid? The diagram shows 3 feet on top, 6 feet on the left side, 7 feet on the bottom, 2 feet and 4 feet to the right Our teacher gave us the answer of 156 then told us to figure out how she ...

*April 28, 2015 by Josh*

**chemistry**

At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.

*September 14, 2012 by Nicole*

**math**

The measures of two sides of a triangle are 9 and 15. Use an inequality to express the range of the measure of the third side,m.

*November 26, 2006 by Susie*

**geometry**

The legs of an isosceles triangle are each 18 cm long and the angle between them measures 48 degrees. What is the length of the third side?

*March 25, 2010 by cori*

**math**

What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2? please show/explain work

*November 7, 2010 by bob*

**Chemistry 111**

The heat of fusion for a solid is .825kJ/mole. the formula weight of the solid is 150.24. How many grams of this solid can be melted by 305J of energy?

*April 13, 2011 by Janna*

**math**

Assuming the solid is constructed from cubes measuring 1 unit on each edge and that the figure is completely solid, what is the volume of the cubic solid shown above?

*May 26, 2011 by kesi*

**calc**

The base of a solid in the region bounded by the graphs of y = e^-x y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume, in cubic units, of the solid?

*June 15, 2015 by Anonymous*

**Math :) **

Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? I thought that the higher the volume, the longer the amount of time the ice cube does NOT melt. Which one is best? Thank you. :)

*April 10, 2016 by Mariana W. *

**physics**

A solid block of mass m2 = 8.3 kg, at rest on a horizontal frictionless surface, is connected to a relaxed spring. The other end of the spring is fixed, and the spring constant is k = 210 N/m. Another solid block of mass m1 = 12.4 kg and speed v1 = 4.9 m/s collides with the 8....

*April 14, 2013 by Nicole*

**geometry **

Triangle DEF where angle E is a right angle. DE measures 55. EF measures x. Angle D measures 49 degrees. What is the value of x rounded to the nearest hundredth? Type the numeric answer only in the box below.

*February 8, 2015 by Bella*

**Science**

In an experiment ti determine the density of a liquid the following pieces of information were obtained. Mass of empty bottle=50g Mass of bottle and liquid=85g Volume of liquid=100cm^3 Use the information to determine the density of the liquid

*October 23, 2016 by Patrick*

**sCIENCE PLZZZZZZZZ HELP**

1. The surface tension in a cup of water is caused by ____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its container 2. The measure of ...

*April 11, 2012 by jhai9*

**physics**

Two trains approach one another. Train A has a mass of 500,00 kg and is moving at 34.0 m/s. Train B has a mass of 350,00 kg and is moving at 42 m/s. They collide and stick together. What is the velocity and direction of the combined masses

*May 13, 2016 by Angie*

**Math **

I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi r^2|V=4/3 pi r^3 3/r ...

*March 4, 2016 by Alexia Smith*

**thermodynamics**

2. If a pump discharges 284 liters per minute of water whose density is 985 kg/m3 . Find (a) mass flow rate in kg/min; (b) the total time required to fill a vertical cylindrical tank 3.05 m in diameter, and 305 m high. Note: m = Q x ρ, where m= mass, Q=volume flow rate...

*February 8, 2016 by binjok*

**college**

What is the mass of a 10.0 cm^3 cube of copper?

*August 27, 2010 by Mel*

**Chemistry**

The density of platinum is 23.4 g/cm cubed. Calculate the mass of 75.0cm cubed of platinum.

*September 25, 2012 by Sparkle*

**unknown**

The density of platinum is 23.4 g/cm3 at 20°C. Calculate the mass of 75.0 cm3 of platinum at this temperature.

*August 15, 2013 by Anonymous*

**Math**

Solve for the length of the unknown side in the following right triangle. (Side AC is the hypotenuse.) Round your answer to two places, where applicable. Side AB ? Side BC=12 Side AC=19

*July 18, 2012 by Jim*

**math**

Following are the lengths in yards of the nine holes of the University Golf Course: 480,460,450,380,360,350,330,180,160 Find each of the following measures with respect to the lengths of the holes: d. Standard deviation 36.07263

*June 16, 2009 by is this right!!!*

**Physics**

The current density of an ideal p-n junction under illumination can be described by: J(V)=Jph−J0(e^qV/kT−1) where Jph is the photocurrent density, J0 the saturation current density, q the elementary charge, V the voltage, k the Boltzmann's constant, and T the ...

*October 3, 2014 by qwerty*

**calculas**

how long will it take an ice cube to melt completely? You left out an ice cube ant 1/4 of it melts in 1 hour. Use the following steps to find out how long it will take before it is melted completely. 1-let s represent the side length of the ice cube, and observe that s is a ...

*March 6, 2011 by julie*

**Math**

Suppose Triangle ABC has right angle C. Find the measures of the other sides to the nearest whole number if...? the measure of angle A is 32 degrees, and the measure of AB is 42. For one side, I got 23, and for the other side, I got 35. Am I right?

*May 16, 2009 by Angie*

**Science**

What is anything that has mass and takes up space? 1) Weight 2) Volume 3) Density 4) Matter When you measure the boiling point of mercury, you are investigating a ____. 1) Chemical change 2) Chemical property 3) Physical change 4) Physical property Ab object weighing 90 N has ...

*April 6, 2016 by Lulu*

**Chemistry**

If an oil molecule is 100*10^-10m in diameter,then can 10^24 molecules fit exactly in a cube 1m on a side? Please help me answer this showing working out.

*August 6, 2012 by Elie*

**Chemistry Help? Thanks**

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

*September 23, 2012 by Hannah*

**CHEMISTRY**

At what temperature do KCL and KNO3 have the same solubility If a saturated solution of KNO3 at 20.0 C is heated to 80.0 how much more could be dissolved? If a saturated solution of KCL at 90.0 C is colled to 30.0 C how much of the solid will precipitate? How much NaCL will ...

*September 23, 2012 by Mike*

**Chemistry**

What is the maximum mass of the lower molar mass product that can be formed when 71.0 g of solid barium bromide and 44.5 g chlorine gas react?

*April 10, 2011 by Robbie*

**Chemistry**

What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?

*October 7, 2013 by Connor*

**Chemistry**

Boron Phosphide, BP, is a semiconductor, and a hard, abrasion resistant material. It is made by reacting Boron tribromide and phosphorus tribromide in a hydrogen atmosphere at high temperature (>750 degrees C) (a) Write a Balanced chemical equation for the synthesis of BP (...

*March 11, 2012 by Laffy Taffy*

**chem 111**

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

*August 26, 2008 by jojo*

**physics**

D=m/V=m/ð•R^2•h Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm. I am lost on the numbers to plug into this one please help

*March 24, 2012 by jim*

**chemistry**

What mass of sucrose should be combined with 491 g of water to make a solution with an osmotic pressure of 8.70 atm at 270 K? (Assume the density of the solution to be equal to the density of the solvent.)

*August 5, 2010 by ashley*

**College Physics**

assuming that sea water has a density of 1.05 g/cm^3, what is the density of a submarine running submerged? wouldn't you need to know some other information; like the mass or volume of the submarine?

*November 21, 2011 by Amy*

**P-Chem**

Can you check my answer? Thank you What is the molar mass of a gas that behaves ideally (i.e. obeys the perfect gas law pV=nRT) if it has a density of 1.92 g dm-3 at 150 kPa and 25 C? I got; M=p(density)RT/(P)=31.7 kg mol^-1

*September 6, 2016 by Jessy*

**Calculus**

Find the functions a) f o g, b) g o f, c) f o f, d) g o g, and their domains. f(x)= square root of x, g(x)= cube root of 1-x These are my answers, but I am not sure about them and I only figured out one domain... that is the part that really confuses me. Help please! a) 5th ...

*September 19, 2010 by Chelsea*

**Calc**

Find the functions a) f o g, b) g o f, c) f o f, d) g o g, and their domains. f(x)= square root of x, g(x)= cube root of 1-x These are my answers, but I am not sure about them and I only figured out one domain... that is the part that really confuses me. Help please! a) 5th ...

*September 20, 2010 by Chelsea*

**chemistry**

15. On October 21, 1982, the Bureau if the Mint changed the composition of pennies. Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2 Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of the new penny was 97.6% Zn and 2.4% Cu by ...

*September 12, 2010 by kelly*

**chemistry**

What is the molarity of a solution of 10% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

*March 14, 2008 by thanh*

**math**

A cube has 6 sides. Each side has a number from 1 to 6. Each number is used only once.

*June 18, 2011 by mike*

**math**

A cube with side length 4 centimeters is 25% full of sand.What is the volume of the sand?

*April 28, 2014 by Steven*

**Chem**

The mass of a beaker is 5.333g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the hydrochloric solution? these...

*September 2, 2015 by Amy*

**chem**

A solution prepared by dissolving 20.2 mL of CH3OH in 100mL of water @ 25 celcius. The final volume of the solution is 118 mL. Calculate the % by mass. density CH3OH[0.782g/mL], H20[1g/mL] @ room temp.

*July 22, 2011 by susan*

**chem**

A solution prepared by dissolving 20.2 mL of CH3OH in 100mL of water @ 25 celcius. The final volume of the solution is 118 mL. Calculate the % by mass. density CH3OH[0.782g/mL], H20[1g/mL] @ room temp.

*July 22, 2011 by rita*

**chemistry**

An aqueous solution is made using 137g of diluted to a total solution volume of 1.30L .Calculate the molarity.molality and mass percent of solution.*assume a density of 1.08g/ml for the solution..

*July 28, 2012 by noor*

**Astronomy**

The volume of a ball is given in terms of its radius by V=4π3R3. Use this to find the average density of Saturn, i.e. the mass per unit volume. Use Earth’s mass in kg from the Table of Constants to express your answer in kgm3. Note for comparison that water has a ...

*December 23, 2012 by sam*

**chemistry**

Calculate the solubility of Cacl2 in g/L based on the experiement. Given 650g of CaCl2 added to 1.0L and allowed to dissolve as much as possible. While the remaining solid CaCl2 is filtered out of the solution and found to have a mass of 5.509g. What is the solublity of CaCl2

*June 6, 2012 by Greg*

**CHEMISTRY**

A glass vessel has a mass of 53.8718 g when evacuated (no air). When filled with a liquid of density 1.319 g mL-1 it has a mass of 255.7390 g and when filled with an unknown gas at 752.3 torr and 16.12°C it has a mass of 54.2483 g. What is the molar mass of the gas, express ...

*January 20, 2008 by Matt*

**science**

Which object exerts more gravitational force, object A with a mass of 25 grams and a density of 2 g/cm3 or object B with a mass of 55 grams and a density of 0.5 g/cm3?

*January 7, 2011 by sharika*

**Physics**

Which object exerts more gravitational force, object A with a mass of 25 grams and a density of 2 g/cm3 or object B with a mass of 55 grams and a density of 0.5 g/cm3?

*March 24, 2011 by Alexis Alexander*

**physics**

A force of 303.0 N is used to push a 160 kg mass 30.0 m horizontally in 3.00 s. (a) Calculate the work done on the mass. 1 kJ (b) Calculate the power developed. 2 kW

*December 12, 2011 by Anonymous*

**Chemistry**

A 0.753 m solution of the solute CH3CN dissolved in the solvent C6H6 is available. Calculate the mass ( g ) of the solution that must be taken to obtain 3.274 mol of CH3CN. Additional info: Molar Mass (g/mol) CH3CN 41.05 C6H6 78.11 Density ( kg/L ) CH3CN 0.7857 C6H6 0.8786 ...

*May 8, 2010 by Kyo*

**math**

Each edge of the cube measures 24 inches. Raj wants to cover the top and four sides of the table with ceramic tiles. Each tile has an edge length of 6 inches. How many tiles will he need?

*February 11, 2016 by cat*

**Calculus**

Hi there I am having some troubles trying to do my calculus homework and I really need help trying to do this problem from my homework: Set up the problem and do not solve: The mass of the solid bounded by the surfaces 2x^2 + 2y^2= 9, z=0, z=3 with density function p(x,y)= x^...

*December 3, 2009 by shylo*

**Stiochiometry**

Equation 2Mg+O2= 2MgO Lab data: Magnesium ribbon= .04 grams Magnesium Oxide= .09 2. Using the initial mass of magnesium, calculate the moles of oxygen and then moles of magnesium oxide produced. What is the mole ratio of the reactants? 3. Calculate the mass of magnesium oxide ...

*February 26, 2009 by Emily*

**CHEMISTRY**

brass is a subtitutional alloy consisting of a solution of copper and zinc. a particulae sample of red brass consisting of 80% copper and 20% zinc by mass has a density of 8750kg/m^3. a. what is the molality of zinc in the solid solution and B. what is the molarity of zinc in ...

*October 14, 2010 by lulu78*

**algebra**

The actual room has an area of 166ft2 and one of the sides, s, measures 13ft. Side s corresponds to side m of your model and m = 2ft. In order for your model to have the same proportions as the actual room, what is the required area of your model room?

*October 9, 2011 by Kevin*

**physics**

A ball of circumference 71.5 cm and mass 640 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, it rises at a constant velocity. (The density of water is 103 kg/m3.) (a) Calculate the buoyant force on the ball.

*March 24, 2012 by sara*

**9th grade math**

the triange is 31cm, side 1 and side 2 have equal lenghts, while side 3 is one centimeter shorter than twice then length of side 1, how long is each side?

*February 18, 2011 by Greg *

**chemistry**

In a laboratory experiment, the density of a concentrated sugar solution was determined by measuring the volume of the solution and corresponding mass. Three students each made a set of measurements using a different balance and used the results to calculate density. Their ...

*August 30, 2008 by helpp*

**chemistry**

Calculate ∆T for the reaction. Assume the initial temperature of both reactants is 25.0◦C. Calculate the volume of the reaction mixture. Calculate the mass of the reaction mixture. Assume the density of the mixture is 1.03 g mL^(-1). Calculate the heat transferred ...

*October 22, 2014 by Anonymous*

**math**

Is it possible to have a triangle that the sum of the measures of the small and medium sides is equal to the measure of the large side?

*October 26, 2010 by miranda*

**cmsd**

Your question: "The shorter diagonal of a rhombus is 50 mm long. Each of its obtuse angles measures 140. Find the length of each side."

*February 20, 2013 by allen*

**math**

Your question: "The shorter diagonal of a rhombus is 50 mm long. Each of its obtuse angles measures 140. Find the length of each side."

*February 20, 2013 by allen*

**geometry**

a rectangular piece of land measures 0.7 km by 0.5km each side is to be fenced with 4rows of wires.What is the length of wire needed?

*November 4, 2014 by Anonymous*

**Physics**

Now your bicycle wheel is rotating with an angular speed of 43.8 rad/s. The wheel has a mass of 4.9 kg and a radius of 48.6 cm. Treat the wheel as a solid thin disc. (a) Calculate the rotational kinetic energy of the wheel in J. (b) Calculate the angular speed the wheel must ...

*April 22, 2016 by Jannia*

**Chemistry**

Commercial vinegar usually has a concentration of 5%, per volume. a) Calculate the [H3O+] , if the density of acetic acid is 1.051 g/mL. b) Calculate the pH.

*May 13, 2012 by Andrea*

**Chemistry**

The density of a sample of F2(g) is 1.559 g/L. If the gas is held at 755 torr, calculate the temperature. how would i calculate the volume to use

*September 25, 2016 by Anonymous*

**physics**

Archimedes decides to take a warm bath. If 1 calorie equals 4.187 Joules, and the heat of fusion of ice/water is 334 J/gram, calculate the number of calories it takes to liquefy a solid block of ice of mass 100 kg at 0°C. Use scientific notation.

*June 17, 2012 by LL*

**college chem**

What mass of sucrose should be combined with 524 g of water to make a solution with an osmotic pressure of 8.50 atm at 270 K? (Assume the density of the solution to be equal to the density of the solvent.)

*September 12, 2010 by moe*

**Chemistry**

I have this problem.... Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane? Am I to solve by using mass = density x volume? And if so, is the answer 32.62mL?

*September 16, 2012 by Amanda*

**Chemistry**

What mass of sucrose (C12H22O11) should be combined with 477g of water to make a solution with an osmotic pressure of 8.15atm at 275K ? (Assume the density of the solution to be equal to the density of the solvent.)

*February 8, 2015 by chemstud*

**chemistry**

calculate the dimensions of a cube that contains 22.4L of gas at STP.

*February 10, 2013 by Kelsey*

**maths**

the net of a cube has an edge of 5cm. calculate the perimeter

*November 2, 2016 by joshua*

**Maths**

Given that 3^9 + 3^12 + 3^15 + 3^n is a perfect cube number. Calculate the value of n.

*November 12, 2016 by Help*

**Chemistry**

A hospital saline solution is analyzed to confirm its concentration. A 60.0 mL sample with a mass of 50.443 g is evaporated to dryness. (a) If the solid sodium chloride residue has a mass of 0.413 g, find the mass/mass percent concentration of the NaCl solution. % (b) Find the...

*March 26, 2014 by Harry*

**Math**

The surface area of a cube is 150cm squared. The area of one face of the cube is 25cm squared. What is the length of one edge of the cube?

*November 28, 2012 by Cherie*

**chemistry**

Time p.m. Mass (g) 1:00 2.5754 1:08 2.5621 1:15 2.5615 1:24 2.5609 1:31 ? How do I predict the mass at 1:31 of this solid that is weighed every 5 minutes while drying?

*September 20, 2010 by Morgan*

**Math**

If the volume of a cube is 125m cubed, what is the expression for lenght of each side? I got the answer 5m cubed

*October 18, 2016 by Jordan*

**Solid Mensuration 04/15/16**

Given trinagle ABC whose sides are AB=15 in., AC=25 in., and BC=30 in. Form a point D on the side AB, a line DE i drawn to a pointE on side AC such that angle ADE is equal to angle ABC. If the perimeter of triangle ADE is 28 in., find the lengths of line segments BD and CE.

*April 14, 2016 by Glenn*

**Physics**

An equilateral triangle 100.0 m on a side has a m1 = 15.00 kg mass at one corner, a m2 = 75.00 kg mass at another corner, and a m3 = 120.00 kg mass at the third corner. Find the magnitude and direction of the net force acting on the 15.00 kg mass.

*March 17, 2011 by Bill*

**Chemistry**

Acid Question!? An unusual category of acids known as superacids, which are defined as any acid stronger than 100% sulfuric acid, can be prepared by seemingly simple reactions similar to the one below. In this example, the reaction of anhydrous HF with SbF5 produces the ...

*March 30, 2007 by Anonymous*

**Physics**

An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube and that it takes 30200 J to melt it. How long does it take for the ice cube to melt?

*March 9, 2010 by Anonymous*

**Physics**

An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W, of power to the ice cube and that it takes 32,200 J to melt it. how long does it take for the ice cube to melt?

*March 15, 2010 by Rosco*

**Physics**

An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W of power to the ice cube and that it takes 32,200 J to melt it. How long does it take for the ice cube to melt?

*March 16, 2010 by John*

**7th Grade Math**

Stacy has a spinner (1-4) and a number cube (1-6). After spinning and rolling the number cube, she will add the two numbers. What is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4?

*March 13, 2013 by Cassidy*

**College Chemistry**

If the density of cylinder 1 is 3.55 , what is the density of cylinder 2? (The masses and volumes of two cylinders are measured. The mass of cylinder 1 is 1.35 times the mass of cylinder 2. The volume of cylinder 1 is 0.792 times the volume of cylinder 2.)

*February 12, 2012 by Alex*