# how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3

22,259 questions, page 72-
## chemistry12_2016-1

In one process, 4.0 grams of sulphur was brunt in 48.0 decimeter cube of oxygen measured at RTP. (A) What is the limiting reactant in this reaction? (B) Calculate the volume of sulphur dioxide formed at RTP.

*asked by Anonymous666_4 on March 27, 2016* -
## Algebra 2

The amount of time required to stack boxes varies directly with the number of boxes inversely with the number of people who are stacking them. If 2 people can stack 60 boxes in 10 minutes, how many minutes will be required for 6 people to stack 120 boxes?

*asked by Dee on January 18, 2017* -
## Physics

Which needs more energy: to heat 5 kg of copper from 20 degrees celcius to 50 degrees celcius or to heat 0.5 kg of water from 20 degrees celcius to 50 degrees celcius?

*asked by Ann on November 22, 2015* -
## Physic II

Heat can be transformed into work with 100% efficiency , but work cannot be transformed into heat with 100% efficiency. False right?

*asked by rujiye on April 30, 2014* -
## Physics

A freezer has a coefficient of performance of 6.30. It is advertised as using 486 kWh/yr. Note: One kilowatt-hour (kWh) is an amount of energy equal to running a 1-kW appliance for one hour. a) On average, how much energy does it use in a single day? I got

*asked by Z32 on February 16, 2011* -
## western michigan university

A 30 gram metal at 100 degrees Celsius was dropped into 132 grams of water at 25 degrees Celsius and the final temperature for the metal in water system was 29 degrees Celsius. Calculate the specific heat capacity of the metal if the specific heat capacity

*asked by lorena on December 6, 2012* -
## Physics

Coefficient of volume expansion of some liquids(a/˚C) Alcohol=1.1x〖10〗^(-4) Glycerin=5.0x〖10〗^(-4) Water=3.7x〖10〗^(-4) Ether=1.63x〖10〗^(-4) Mercury= 1.1x〖10〗^(-4) How much water overflows when a pyrex vessel filled to the grim with 1

*asked by Angela on December 8, 2013* -
## maths

prove that : 3^-3 * 6^2 * root 98 divided by 5 ^2 * cube root 1/25 * 15 ^-4/3 * 3^1/3 equals to 28 root 2

*asked by tuhituhi on March 30, 2013* -
## math

You roll a number cube numbered from 1 to 6. P(a prime number) I think 3/6 or 1/2 P(not a 6) 5/6 P (an even number) 3/6 or 1/2 P (3,6,5,2, or 4) = 5/6

*asked by Anonymous on March 13, 2014* -
## math

The product of square of a number and the cube of the same number is equal to 32 what is that number

*asked by Felicia motaung on April 8, 2014* -
## math

Solve for x: [Sixth root of 27]+[cube root of x] = 6/(3-[square root of 3]

*asked by Sidney on February 14, 2011* -
## MATH

You roll a number cube numbered from 1 to 6. P(a prime number) I think 3/6 or 1/2 P(not a 6) 5/6 P (an even number) 3/6 or 1/2 P (3,6,5,2, or 4) = 5/6

*asked by Anonymous on March 13, 2014* -
## Physics

In a phsics experiment, a 1.3 kg dynamics cart is placed on a ramp inclined at 25 degrees to the horizontal. the cart is initially at rest but is then pulled up the ramp with a force sensor. the force sensor exerts a force on the cart parallel to the ramp.

*asked by Lola on October 1, 2013* -
## Physics

In a phsics experiment, a 1.3 kg dynamics cart is placed on a ramp inclined at 25 degrees to the horizontal. the cart is initially at rest but is then pulled up the ramp with a force sensor. the force sensor exerts a force on the cart parallel to the ramp.

*asked by Lola on October 1, 2013* -
## Physics

A stick of dynamite (190 g) contains roughly 10 J of chemical energy that is transformed into mechanical energy and heat during an explosion. A 1000 kg rock in outer space is at rest with respect to a spaceship. An astronaut blows up the rock with one

*asked by askas on October 24, 2013* -
## Science

I want to make a small model of how electricity is created by burning coal. I want to show a model that works and be able to light up and very small light bulb(the ones found in an average school microscope). How would I do this. You will find this

*asked by Gina on December 18, 2006* -
## Physics

A stick of dynamite (190 g) contains roughly 10 J of chemical energy that is transformed into mechanical energy and heat during an explosion. A 1000 kg rock in outer space is at rest with respect to a spaceship. An astronaut blows up the rock with one

*asked by askas on October 23, 2013* -
## PHYSICS NEED HELP FAST

A 150KG STEEL ROD IN A BUILDING UNDER CONSTRUCTION SUPPORTS A LOAD OF 6050KG. DURING THE DSY THE RODS TEMP. INCREASES FROM 22C TO 47C CAUSING THE ROD TO THERMAALLY EXPAND AND RAISE THE LOAD 5.5mm. FIND THE EGERHU TRANSFER AS HEAT TO OR FROM THE ROD. THE

*asked by ricki on March 2, 2011* -
## math

which of the following expressions shows the equation to use in the finding the dimensions of a cube N by N by N with a volume 125 1) n3=125 2) n2=125 3) 3n=125 4) n=125/3 5) not enought info given need help with this problem!!

*asked by Angel on August 24, 2010* -
## Chemistry 101

If 12.0g of molecular oxygen, O2, is required to inflate a balloon to a certain size at 27 degree celcius, what mass of molecular oxygen required to inflate it to the same size and pressure at 81 degree celcius?

*asked by Eunice on April 30, 2009* -
## Chemistry

If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity and higher osmotic

*asked by Anonymous on February 25, 2009* -
## World History (Ms. Sue)

I'm only guessing. I don't have much of an idea. What fears do we have today that prevent or inhibit exploration or research? What technological advance would be required to overcome those fears? A: Fears of failure, disease, and losing resources are that

*asked by Victoria on October 21, 2014* -
## physics

A system undergoes a two-step process. In the first step, the internal energy of the system increases by 368 J when 144 J of work is done on the system. In the second step, the internal energy of the system increases by 24 J when 248 J of work is done on

*asked by Will on April 26, 2008* -
## Chemistry

One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) ? FeCl2(aq) + H2(g); (Delta)H°= –87.9 kJ How much heat is liberated at constant pressure if 0.215 g of iron reacts with 40.4 mL of

*asked by Raul on March 24, 2013* -
## math

side of the cube increasing at rate of 6 cm/s. find the rate of increase of the volume when the length of a side is 9 cm.[ans 1458cm^3/s] my answer: ~729x6=4374cm^3/s i need some1 show me the calculation if im wrong.

*asked by susan on July 22, 2011* -
## physic

What mass of water at 22.0 °C must be allowed to come to thermal equilibrium with a 1.66-kg cube of aluminum initially at 1.50 multiplied by 102 °C to lower the temperature of the aluminum to 57.1 °C? Assume any water turned to stream subsequently

*asked by baby on May 20, 2011* -
## Math

Dree rolls a strike in 6 out of the 10 frames in bowling. What is the experimental probability that Dree will roll a strike in the first frame of the next game? Explain why a number cube would not be a good way to simulate this situation. I am confused on

*asked by Patrick on March 29, 2018* -
## Chemistry

Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3. Show all calculations leading to an answer.

*asked by Kylie on May 24, 2018* -
## math

The stiffness of a given length of beam is proportional to the product of the width and the cube of the depth. Find the shape of the stiffest beam which can be cut from a cylindrical log (of the given length) with cross-sectional diameter of D

*asked by manjeet on April 7, 2018* -
## math

Adam has built a garden shed in the shape described. a square based pyramid with the height of 3.5m on top of a cube with base 4m by 4m and height 2m. calculate the volume of the shed, to the nearest cubic metre. thanks.

*asked by Ted on May 16, 2010* -
## chemistry

What is the total energy change if 150.0 grams of ice at 0.0 oC are melted, then the water is warmed to 45.0 oC? Is this process endothermic or exothermic? ƒ´Hf = 6.01 kJ/mol(multiple steps)

*asked by evelyn on March 6, 2014* -
## Physics

0.115 kg of water at 89.0o C is poured into an insulated cup containing 0.226 kg of ice initally at 0o. Calculate the mass of liquid when the system reaches thermal equilibrium.

*asked by Jake on February 7, 2019* -
## Physics

A container of mass 0.3 kg slides along the ice with a speed of 4 m/s when it reaches a rough section where the coefficient of kinetic friction is 0.8. How long will it take the puck to stop sliding?

*asked by Shawn on September 30, 2016* -
## Physics

A 1 kg hockey puck is sliding on the ice at 5m/s and stops on some dirt in 2 secs. I need to find the coefficient of kinetic friction. I found the acceleration being -2.5m/s^s (0-5m/s / 2s) Idk what to do next pleaseeee help

*asked by Lola on June 1, 2014* -
## math

We know that 65% of all Americans prefer chocolate over vanilla ice cream. Suppose that 1000 people were randomly selected. The Sampling Distribution of the sample proportion is

*asked by Estimation on December 17, 2016* -
## Oxymorons

I need a list of oxymorons and I searched google; Can someone let me know which ones I am missing? Here's what I have so far: civil war diet ice cream living dead butthead old news same difference Thanks!

*asked by mTaq14 on March 17, 2009* -
## Check Puctuation

The rainbow streched across the sky from the ice cream truck to the house down the land Isn't that last word "lane"? All it needs are the spelling correction and a period at the end, nothing else. =)

*asked by Lynne on July 6, 2007* -
## English

Hello! What could I do as a lead in activity with two 5th graders? We have a 45 minute lesson tomorrow and I want to break the ice with a funny game. The topic is not important. Does anyone have something that lasts for 10 minutes?

*asked by tee on January 27, 2011* -
## PHYSICS!

0.115 kg of water at 81.0o C is poured into an insulated cup containing 0.220 kg of ice initally at 0o. Calculate the mass of liquid when the system reaches thermal equilibrium.

*asked by Emma on November 10, 2012* -
## Science help please!!

How did planetesmals form planets? A. They broke apart into smaller chunks. B. They collided and stuck together. C. They cooled and pulled ice together. D. They began to rotate. Is the answer B? Thank you so much in advance.

*asked by Katty on March 30, 2015* -
## physics

Two ice skaters hold hands and rotate, making one revolution in 2.4 s. Their masses are 60 kg and 70 kg, and they are separated by 1.5 m. Find the angular momentum of the system about their center of mass.

*asked by Anonymous on March 16, 2015* -
## physics

50kg iceskater turns a bend at 7m/sec. if the radius of the curve is 5 meters, what is the centripetal force provided by the friction between the blade of the skate and the ice?

*asked by Anonymous on June 9, 2011* -
## Physics

A 45-kg skater rounds a 5.0-m radius turn at 6.3 m/s. (A.) What are the vertical and horizontal components of the force the ice exerts on her skate blades? (B.) At what angle can she lean without falling over?

*asked by John on October 21, 2012* -
## physics-heat transfer

consider a brick wall that has been exposed to the sun for some time. 1.how did the heat get from the sun's surface to the wall?(is it something about radiation?please help.) 2.the air over the wall seems to shimmer and shake as air currents rise from

*asked by Emma on May 4, 2007* -
## Physics

A light spring having a force constat of 125 N/m is used to pull a 9.50kg sled on a horizontal frixtionless ice rink. If the sled has an acceleration of 2.00 m/s^2, by how much does the spring stretch if it pulls on the sled (a) horizontally, (b) at 30.0

*asked by Sarah on June 15, 2009* -
## Thermodynamics

A 10m height cylinder with cross sectional area of 0.1 m2 has a massless piston at the bottom as shown in Figure Q2. Water is at the top of the piston with air at 20oC over it. Under the piston there is air at 300K. The volume of the air is 0.3m3. Heat is

*asked by Hao on April 14, 2014* -
## Thermodynamics

A 10m height cylinder with cross sectional area of 0.1 m2 has a massless piston at the bottom as shown in Figure Q2. Water is at the top of the piston with air at 20oC over it. Under the piston there is air at 300K. The volume of the air is 0.3m3. Heat is

*asked by Hao on April 14, 2014* -
## science

what temperature change is required to increase the reation time by a factor of 2? what temperature change is required to decrease the reation time by a factor of 2?

*asked by seni on December 14, 2011* -
## algebra

What is the surface area to volume ratio for a cube with the length of 4cm? (Area = L x W x 6, Volume = L x W x H

*asked by Anonymous on January 25, 2018* -
## geometry

how many cubes with a side length 5cm do fit in a cube with a side length 20cm?

*asked by .... on April 18, 2011* -
## dara

the volume of a cube increases at average of 24cm^3 /min while it's length increases 2 cm/min

*asked by hana on January 18, 2013* -
## Math

A. The cube roots of -27 are 3 B. The fourth roots of 81 are 3 C. 3√-1000=-√1000 D. 4√-16=-4√16 Which of the following statements are true 1. B and C only 2. A, B and C only 3. A,B,C and D 4. Some other combination of A, B, C and D

*asked by Mileena on February 28, 2017* -
## Chemistry

A lead atom has a mass of 3.40×10−22 g. How many lead atoms are in a cube of lead that has a volume of 1.40 cm^3 if the density of lead is 11.3 g/cm^3?

*asked by Vy on March 7, 2011* -
## chemistry

Say you made three different mass measurements of a sugar cube. You know the mass is 1.0g. how would you know whether or not the measurements were accurate? Precise?

*asked by Alyssa on October 11, 2007* -
## ALGEBRA

I can't find help for this one; explain. You roll a standard number cube. Find P(number less than 3). (1 point) 1/3 2/3 3/2 5/6

*asked by Anonymous on January 25, 2015* -
## chem

A lead atom has a mass of 3.4⋅10^-22 g. How many lead atoms are in a cube of lead that has a volume of 2.07 cm^3 if the density of lead is 11.3 g/cm^3?

*asked by Antony on September 22, 2013* -
## Chemistry

If 35cm cube of gas is heated from 14 degree celsius to 55 degree celsius.what is the new volume?

*asked by Samuel on January 29, 2012* -
## Chemistry

Need Help with these two problems 1.One piece of copper jewelry at 111°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside

*asked by Jamie on October 12, 2008* -
## AP Physics B (Heat Engines)

18. (II) At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate ehat input of the second. Th eoperating temeprautres of the first are 680 degrees C and 430 degrees C, and of the second 415 degrees C and

*asked by Joe on December 16, 2009* -
## Chemistry

So I am writing a lab report and Im stuck with calculating the enthalpy change of combustion of the following reaction: Mg+2HCl--> MgCl2+H2 .I am given the mass of Mg which is 5g and the concentration of HCl which is 2M and the volume of HCl which is 50

*asked by Ashley on April 30, 2011* -
## Physics

Refrigerator Suppose that you want to freeze 1.2 kg of water for a party, and only have 10 minutes to do it. Relying on nothing but your keen physical abilities, a dixie cup, duct tape and a piece of string, you manage to build a refrigerator unit which

*asked by BG on November 28, 2010* -
## Chem help!!

A rock salt (NaCl), ice, and water mixutre is used to make homemade ice cream. How many grams of rock salt must be added to lower the freezing point 10.0 degrees C? I have no idea what to do, please help! delta T = Kf*i*m delta T = 10. Kf is the molal

*asked by Lindsay on May 3, 2007* -
## PHYSICS - PLEASE HELP

Converting sunlight to electricity with solar cells has an efficiency of 15%. It's possible to achieve a higher efficiency (though currently at higher cost) by using concentrated sunlight as the hot reservoir of a heat engine. Each dish in the figure

*asked by Anonymous on December 4, 2012* -
## chemistry

A propane barbeque is used to heat up 400g of water in an aluminum pot until it is boiling. Using the following information, calculate the molar enthalpy of propane. You can assume the temperature of the water and the temperature of the aluminum pot are

*asked by Bob on November 7, 2010* -
## chemistry

thermochemistry chem conceptual. i just want to check my understanding of this Say you got this: 1)A + b=c A=4.0 grams and -91.8kj evolve How do you find change of H ? I guess you convert A to grams and then shove it under the evolved heat ? ie. change of

*asked by Jim_R on August 7, 2009* -
## Science 8th grade

Please check my answer thanks Which of the folowing process is achieved through osmosis ? A. A cube of sugar didilving in coffee B. Particles of oxygen filling the lungs C. Water moving across thr cell membranne D. Transport of proteins from the

*asked by Alley on March 22, 2008* -
## maths

a cube of material of side 3cm ( nearest mm) and mass 27 grams (nearest 10th of a gram) is placed into a bowl of deep water. Will the material sink or float? explain answer with suitable calcuations

*asked by bob on January 12, 2016* -
## math

Tina and Bruce are each rolling a 1 to 6 number cube. They are looking for different ways to roll two factors whose product is greater than 14. How many different ways will they find? Product means to multiply so 4x5, 3x5,6x5,. I chose 1 to 6 SO I have

*asked by Damian on October 12, 2014* -
## Geometry PLEASE HELP

1. If the surface area of a cube is 294 inches squared, find the volume. 2. If the base of a prism is an equilateral triangle with sides 8cm, and each lateral edge measures 10cm, what is the volume of the prism.

*asked by Gigi on March 3, 2013* -
## physics

Spaceman Spiff sits just outside the Milky Way galaxy with a cup of liquid Helium which is at approximately 4K (-269 0C). He has with him a small sphere made entirely of copper which is at a temperature of 219K (-54 0C). After a certain amount of time his

*asked by gian on April 27, 2010* -
## Chemistry 30

Calculate the molar heat of reaction for the NaOH(aq) using the data obtained from this experiment. (this is a neutralization question) H2so4 Volume= 30ml Concentration=1.0mol/l Initial temp. = 29.9 NAOH Volume= 50ml C = 1.0 mol/L Initial temp. = 29 Final

*asked by Marium on June 2, 2010* -
## Government

Please critique my Introduction paragraph for my essay I changed the last sentence to make a better arguement................-In the 1981 Supreme Court Case of Rostker vs. Goldberg the debate was weather women should be included in any future draft

*asked by Jaden on July 1, 2007* -
## math

Can someone please help me with this word problem!?! I know the answer which is 784 feet. But I have no clue how to solve it. Can someone please show how to solve this problem? The word problem is: The melt in Your Mouth Chocolate Factory is a rectangular

*asked by aaron on September 4, 2012* -
## physics

To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and the wind velocity. Part A: A plane accelerates

*asked by JD on September 10, 2013* -
## math

which of the following expressions shows the equation to use in finding the dimensions of a cube n by n by n with a volume of 125? 1]n3=125 2]n2=125 3]3n=125 4]n=125-3 5] not enough information is given.

*asked by nerline 2 on November 15, 2012* -
## Math

If each cube represents 0.25 in3, what is the volume of the prism? A) 6 in3 B) 12 in3 C) 48 in3 D) 75 in3 I am not really goo with these, but I think the answer might be b. Please give me the explanation. Thank you

*asked by Becky G ( P.S. Not the celeb) on March 29, 2017* -
## mathematics

which of the following expressions shows the equation to use in finding the dimensions of a cube n by n by n with a volume of 125? 1. n3 =125 2. n2 =125 3. 3n =125 4. n =125 __ 3 5. not enough information is given

*asked by Quanna on August 28, 2011* -
## Chemistry

HCl(aq) +NaOH(aq) ---> NaCl +H2O In a coffee cup calorimeter 50 ml of 2.00M HCl was combined with 50ml of 2.05M NaOH. a) What is the enthalpy change for the reaction? b) What is the molar enthalpy for the reaction? Given: Change in T= 14 degrees celsius

*asked by Kuu on October 8, 2013* -
## physics

A student uses spring balance of range 500gwt. He records the weight of a small iron cube of mass 100g in air, in tap water and in a concentrated solution of common salt in water. His three readings taken in the goben order are w1,w2,w3 his measurement is

*asked by hari on November 24, 2016* -
## Calculus

integrate t*(t^2 - 1)^(1/3) dt over (0,3) I substitute u = t^2 - 1 du = 2t dt which leads to integrate (1/2) u^(1/3) du over(-1,8) = (3/8) * u^(4/3) over (-1/8) = 3/8 * [8^(4/3) - (-1)^(4/3)] I would guess that (-1)^(4/3) is +1, since the cube root of -1

*asked by Sean on February 5, 2011* -
## Statistics

An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that a 95% confidence interval estimate for the mean caffeine intake is within 15mg of the true mean? Assume the standard

*asked by Shavela on April 21, 2012* -
## chemistry

The radiator in your car uses either water or ethylene glycol (anti-freeze) to remove heat from the engine and dissipate it to the outside air. If the water recirculation rate is 17.0 kg per minute of water and the water temperature leaving the engine and

*asked by danny on January 31, 2015* -
## chem

The radiator in your car uses either water or ethylene glycol (anti-freeze) to remove heat from the engine and dissipate it to the outside air. If the water recirculation rate is 17.0 kg per minute of water and the water temperature leaving the engine and

*asked by danny on January 27, 2015* -
## science

1. Which of the following is a reason why a person might want to wear snowshoes if walking a distance in deep snow? (1 point) snowshoes spread the person’s weight out snowshoes reduce the amount of pressure on a given spot snowshoes keep the person from

*asked by pls help on April 24, 2017* -
## Chemistry

A titration involves titrating 0.4 M NaOH into a solution of 0.2 M H3PO4. a.) Calculate the volume of NaOH that will be required to reach the first equivalence point. b.) Calculate the volume of NaOH required to reach the second equivalence point. Other

*asked by Anonymous on February 8, 2014* -
## US History

Why was the Fugitive Slave Act so controversial? (3 points) It required all Americans to return runaway slaves to their owners, and free states opposed this law. It required all runaway slaves to be hung, and most people in free and slaveholder states were

*asked by Haley on February 28, 2013* -
## Physics

Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx.

*asked by Sandara on January 3, 2014* -
## Science

A meteorite is DIFFERENT from a comet mainly because has a tail of ice and dust enters the earth's atmosphere*** has a nucleus made of snow and rock is found in the orbit between Mars and Jupiter

*asked by Haley on May 16, 2017* -
## Chemistry

Do you know how to set up the ICE? That's what you need to do. If you know but are confused, tell us what you don't understand about it. At 55 degrees celcius, the K for the reaction: 2NO2 (g) N2O4(g) is 1.15 Calculate the concentration of N2)4(g) present

*asked by DrBob222 on May 15, 2007* -
## chemistry

which of the following will result in a chemical change?A.melting ice to obtain water B.evaporating alcohol into vapor.C.drying wood in ashed D.burning coal in a furnace

*asked by norman on February 5, 2012* -
## physics

Suppose partial melting of the polar ice caps increases the moment of inertia of the Earth from 0.331MR^2 to 0.332MR^2. What is the change in length of day in seconds?

*asked by nikki on March 17, 2011* -
## chemistry

which of the following is not spontaneous process at 25 degrees celsius and 1 atm pressure? ice melting iron rusting salt dissolving steam condensing water boiling

*asked by martina on April 30, 2012* -
## Maths

Rajesh gets Rs 240 per month. He spends one-third of it on ice creams ,one-half on comic books and the remaining on wafers . Find the ratio of the money spent on each item

*asked by Anonymous on July 30, 2016* -
## chemistry

If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is -192 kJ/mol. and heat of formation of water is -286, what is heat of CaO? i found that the formation of CaO is -638. However,

*asked by nicholas on February 11, 2007* -
## Physics

A car moving initially at a speed of 80 km/h and weighing 13,000 N is brought to a stop ina distance of 61 m. Find(a) the braking force and (b) the time required to stop. Assuming the same braking force, find (c) the distance and (d) the time required to

*asked by Anonymous on February 24, 2014* -
## Please Help ASAP!! Algebra

A number cube is rolled with these results: 64 ones, 67 twos, 73 threes, 59 fours, 72 fives, and 71 sixes. What is the experimental probability of rolling an even number? Write your answer as a percent, to the nearest tenth of a percent... A. 51.9% B.

*asked by Dakota on November 6, 2015* -
## Algebra-please check

Please check these: 1.When the fraction 2/3 is used as exponent, wht role does the denominator 3 play in evaluating expression? I think it indicates cube root of the base,correct? 2.sqrt of (2^4x/4^-2x) is equilvalent to 2^4x, correct? 3.Simplify

*asked by Tabitha on December 12, 2011* -
## math

A cylindrical metal radius 7cm and height 15cm has its centre drilled with a hole of 5cm in cross-section. If 152cm(cube) of d metal weight 125kg, what is the weight of d hallowed cylinder? How do I solve this please?

*asked by birock on February 11, 2016* -
## science

a neutron star, which is the remnant of an exploded massive star, consists of neutrons packing together with a total density of 3.03x10 14g/cm3. if you had a 1.40 cm3 sample of matter(about the size of a suger cube),what would its mass be?

*asked by bonnie on February 9, 2011* -
## physics

what is heat

*asked by mara on November 12, 2015*

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