Question about Office Equipment & Supplies

The total mass is the sum of the masses of the individual pails

Total mass =18.49*2 kg =36.98 kg

Total mass =18.49*2 kg =36.98 kg

Aug 21, 2014 | Office Equipment & Supplies

You cannot convert a unit of mass (mg) to a unit of capacity (volume). Mass and volume of a specific substance are related through the mass density (mass per unit volume).

What you have seems to be a dilution problem but it is not formulated completely. Please try again with necessary details.

What you have seems to be a dilution problem but it is not formulated completely. Please try again with necessary details.

Jan 22, 2014 | Office Equipment & Supplies

density is defined as the ratio of the mass of a substance to the volume occupied by that substance.

To represent density one use the Greek letter RHO (looks like a rounded p)

**RHO= mass/volume**

Unit of density is gram/ cm^3 or kg/m^3

**Relative density is the ratio of the density of a substance to the density of pure water (at about 4 degrees Celsius**). In this relation both densities must be expressed in the same units.

To represent density one use the Greek letter RHO (looks like a rounded p)

Unit of density is gram/ cm^3 or kg/m^3

Nov 17, 2013 | Office Equipment & Supplies

When giving physical quantities you cannot omit the units. (an angle of 10 what). You cannot solve the problem fully because you are missing the length of the pendulum.

You cannot use any kinematic relations because the expression of the period depends on the assumption that angles of rotation remain small.

You will have to use the energy conservation principle. Assuming that the mass was released with 0 initial kinetic energy, the kinetic energy at the lower point (angle 10 degrees) is equal to the change in potential energy between the release point and the point where the mass is.

(1/2)mv^2=delta Ep= Ep(30 deg)-Ep(10 deg)

Once you calculate the potential energy (see screen capture) difference you will see that it is proportional to m*g, so the mass will cancel out.

Your turn: Calculate the potential energy difference between the positions at 30 deg and 10 deg, equate the result with the kinetic energy and solve for v^2, and hence for v the tangential velocity.

You cannot use any kinematic relations because the expression of the period depends on the assumption that angles of rotation remain small.

You will have to use the energy conservation principle. Assuming that the mass was released with 0 initial kinetic energy, the kinetic energy at the lower point (angle 10 degrees) is equal to the change in potential energy between the release point and the point where the mass is.

(1/2)mv^2=delta Ep= Ep(30 deg)-Ep(10 deg)

Once you calculate the potential energy (see screen capture) difference you will see that it is proportional to m*g, so the mass will cancel out.

Your turn: Calculate the potential energy difference between the positions at 30 deg and 10 deg, equate the result with the kinetic energy and solve for v^2, and hence for v the tangential velocity.

Nov 06, 2013 | Computers & Internet

Relative atomic mass of gold **M(Au)= 196,96**. To find the numbers of mols in the gold ring with mass **m**=10,6 g you have to simply calculate **n**=**m**/**M** and after that to multiply **n** with Avogadro's constant **Na**=6.022exp23. Final result is **3.24exp22** atoms. See captured image

Oct 04, 2012 | Texas Instruments TI-83 Plus Calculator

That depends on what you mean by "aluminum acetate".

neutral Aluminium triacetate: 22

basic Aluminium diacetate: 17

basic Aluminium monoacetate: 12

The above is from this Wiki article.

neutral Aluminium triacetate: 22

basic Aluminium diacetate: 17

basic Aluminium monoacetate: 12

The above is from this Wiki article.

Oct 24, 2011 | Texas Instruments TI-84 Plus Calculator

A cubic foot is a unit of volume. A pound can be a unit od mass (weight) or a currency. Either way a volume cannot be converted into a mass nor a currency.

If you are doing homework read carefully the question to figure out what substance they are talking about.

Once you know the substance look up its density or specific gravity and do the calculation

mass (in pouunds) =density (in pounds per cubic foot) * volume (in cubic feet)

As you see, if you know the density (specific gravity) in pounds per cubic foot, you can calculate the mass of any volume of that substance (in cubic feet).

And please, never try to convert a volume into a mass.

If you are doing homework read carefully the question to figure out what substance they are talking about.

Once you know the substance look up its density or specific gravity and do the calculation

mass (in pouunds) =density (in pounds per cubic foot) * volume (in cubic feet)

As you see, if you know the density (specific gravity) in pounds per cubic foot, you can calculate the mass of any volume of that substance (in cubic feet).

And please, never try to convert a volume into a mass.

Aug 23, 2011 | Texas Instruments TI-30XA Calculator

at first calculate volume of outer tube i.e =4988.0313 cubic mm
now inner volume of tube =2553.1968 cubic mm
therefore total volume of aluminium =2434.8345 cubic mm
now weight of the tube =2434.8345 x density of aluminium (gm/mm^3)

Mar 29, 2011 | Computers & Internet

There is no direct relation. Kilogram is a unit of weight (or mass), while liter is a unit of volume. A kilogram of lead takes much less space than a kilogram of air.

Feb 16, 2011 | Office Equipment & Supplies

Only YOU know what you are able to understand. Curl up with a good book on General Relativity/ Cosmology and start reading. If you understand most of the introduction then you are mentally fit to read the rest.

As to the red shift and mass distribution. Scientists are still working on it.

Here is quotation from the abstract of a PhD thesis that may convince to join in the fun.

"Gravitational redshift offers a new approach to studying the mass distributions of galaxies and clusters that requires many fewer assumptions regarding the underlying physics than many of the current methods. Unfortunately, it also suffers from a number of potential setbacks. Recent advances in instrument technology, combined with the careful selection of suitable targets should allow gravitational redshift to become a viable tool for studying the nature and distribution of dark matter."

Here is the link to the thesis.

By the way, your calculator is of no use to you in this matter.

As to the red shift and mass distribution. Scientists are still working on it.

Here is quotation from the abstract of a PhD thesis that may convince to join in the fun.

"Gravitational redshift offers a new approach to studying the mass distributions of galaxies and clusters that requires many fewer assumptions regarding the underlying physics than many of the current methods. Unfortunately, it also suffers from a number of potential setbacks. Recent advances in instrument technology, combined with the careful selection of suitable targets should allow gravitational redshift to become a viable tool for studying the nature and distribution of dark matter."

Here is the link to the thesis.

By the way, your calculator is of no use to you in this matter.

Aug 22, 2010 | Office Equipment & Supplies

25 people viewed this question

Usually answered in minutes!

×