Unit conversion Definition and 115 Threads

See attached image. I can't figure out if its an issue with the Aris online system or a calculation error. $1.40/15 cubic ft is equivilant to $140/424.752699 liter. Then I divide $140/424.752699 to obtain $.003 as being rounded to 3 sig figs. Is there something wrong with this...

i know this is a basic question but i need some assistance abut unit conversions. i want to know how to convert something like, say, 120km/hr to m/s but the way my teacher explains it is too confusing. i just want to know is there a simpler way to convert somthing like that easliy?

i am doing a physics assignment on the realationship between surface tension and temperature. i have calculated the surface tension at various temperatures using a capillary tube and measuring the height. i was given the formula: surface tension=(densityxradius of tubeheight of...

Homework Statement In January 2006, astronomers reported the discovery of a planet comparable in size to the Earth orbiting another star and having a mass of about 5.5 times the Earth's mass. It is believed to consist of a mixture of rock and ice, similar to Neptune. Take mass Earth 5.97 x...

In the early morning hours of June 14, 2002, the Earth had a remarkably close encounter with an asteroid the size of a small city. The previously unknown asteroid, now designated 2002 MN, remained undetected until three days after it had passed the Earth. Suppose that at its closest approach...

Homework Statement Two type of "barrel" units were in use in the 1920s in the United States. The apple barrel had a legally set volume of 7056 cubic inches. The cranberry barrel, 5826 inches. If a merchant sells 50 cranberry barrels of goods to a customer who thinks he is receiving apple...

The question is a enthalopy problem where the enthalopy has to be caluculated per mole at the end. I understand how to calculate the enthalopy change, but I can't seem to calculate the number of moles in the question to be able to calculate the change in enthalapy per mole. I'm given 50.0 cm^3...

Homework Statement Ok, this isn't hard, I'm just thrown off by the question. From the book: "The quantity called mass density is mass per unit volume of a substance. Express the following in SI units:" a. Aluminum, 2.7*10^-3 kg/cm^3 b. Alcohol, .81g/cm^3 Homework Equations...

# If the magnetic field is Oersted, how to convert it into Tesla? Suppose the magnetic field is 50 Oersted, in Tesla what is the magnetic field?

:devil: I have 3 unit conversions and they are not coming out right... what am I doing wrong if you can spot it: 1)1.64ly/min to SI Units: 1ly/min=697.5W/m^2 1144.6W/m^2 but how do you get it with just the oringinal SI units... 2)2.3E27carats/parsec^3 to SI: 2.3E27carats/parsec^3 *...

i have to convert radiation flux density measured from the sun that's 1.64 langleys/min. Easy no? Well, I can't find what the SI unit for radiation flux density is, and its not on google. Anyone know just what the units is [NOT the conversion]

Hello, I need to convert a moment of intertia value given in g*cm^2 to kg*m^2, and was hoping someone could give me a run down of the method behind these kind of conversions. Do I simply assume that since g to kg is a factor 0.001 and cm to m is 0.01, that I can apply a factor of 0.00001 to my...

Unit Conversion & Significant Figures Greetings! I would just like to re-check my work: 1) What will be the mass in tons added to a car when its radiator is filled with antifreeze (d = 1.12 g/mL) if the radiator has a capacityof 3.99 gal? Since density = mass/volume, mass =...

If the annual consumption of petroleum in the US is about 23 barrels per capita, the total annual consumption of petroleum in the US is closest to: 1. 12 mill barrels 2. 240 mill barrels 3. 2 billion barrels 4. 6 bill barrels 5. 10 bill barrels I don't know what is meant by "capita."...

My first week of class and I'm just tied up with this problem. I must be missing something. Question: A cylindrical swimming pool is 132 cm high and 365 cm in diameter. What will be the volume (in liters) of water necessary to fill this pool, knowing that one cubic decimeter is equal to one...