Sujet: mass liste de sujets
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	The mass of a length of tree trunk		2017-11-13
		SM pose la question : What is the mass of a length of 1m of trunk a tree trunk of uniform cross section of area 0.5 sq.m is made of wood of relative density 0.8? Penny Nom lui répond.
	Cubic centimeters, milliliters and grams		2013-09-26
		Laura pose la question : How do I find the volume of a cube with dimensions of .78 cm, .3 cm and .22 cm? Then find the volume in ML and the mass if filled with water? Penny Nom lui répond.
	A water tank is in the shape of a truncated cone		2012-03-08
		Victoria pose la question : Suppose you have a water tank in the shape of a truncated cone. The larger diameter is K, the smaller diameter is K/2, and the height is also K (all measured in meters). The force of gravity on an object of mass, m, is F=9.8m (measured in Newtons). The density of the water is 1000 kilograms per cubic meter. What is the volume of the tank and how much mass will the tank have when it is full? Penny Nom lui répond.
	e = m c^2		2009-12-09
		Jim pose la question : Please explain the following formula: E=MC2 (squared) Robert Dawson lui répond.
	Apparent Weight in salt water		2009-06-06
		Rob pose la question : If an object weighs 100kg in air how much will it weigh when suspended in salt water? Is there an easily used conversion calculation? Janice Cotcher lui répond.
	Unit Conversion for Force and Mass		2009-05-08
		Ray pose la question : Good Day! I was confused about lbm and lbf and slug. I knew that lbm is a unit for mass and lbf is a unit for weight. my problem is some books follow this relationship where lbf=(lbm times the gravitational pull) which is 32.2 ft/(s^2) while other books treat lbm=lbf. other books also treat lbm=(lbf times 32.2)... which is correct? Is 1kg=2.205 lbm or 1kg=2.205lbf? Is 1BTU=778.16 lbf-ft or 1BTU=778.16 lbm-ft? what is the relationship of slug on these two, lbm and lbf? Janice Cotcher lui répond.
	The amount of material remaining on a reel		2009-03-04
		James pose la question : Question from james: I am after a standard calculation so that after each usage of the Reel I can get the Remaining Quantity in kilos left on the roll below is an example of roll THICKNESS: 30 MICRON REEL WIDTH: 7.5 CM REEL DIAMETER: 76 CM REEL WEIGHT: 7.13 KILOS The core centre has a 9cm diameter, the weight of the roll is excluding the core , and after each use the diameter of the role is measured. I am a factory supervisor working on project and need this calculation info for template.. Thanks James Harley Weston lui répond.
	557 mL of benzaldehyde		2008-08-28
		Kara pose la question : Calculate the mass of 557 mL of benzaldehyde. The density of benzaldehyde is 1.04 g/mL. Penny Nom lui répond.
	Net weight		2008-05-23
		Leticia pose la question : Hello, My name is Leticia, I am having trouble with Net weight and I need your help. When I am in class my friends answer questions that they say are easy,but I have no clue what's happening, we are going to have a test soon so please send me fast. Janice Cotcher lui répond.
	Volume, mass and density		2007-09-14
		Nathan pose la question : I have a sample of material that is 10cmx10cmx5cm and has a mass of 29 grams. How many grams would a sample of the same material that was 96cmx188cmx5cm be? Penny Nom lui répond.
	Is it platinum or silver?		2007-09-14
		Jordan pose la question : In Chemistry we are doing a lot of problems that are much more math related than anything. One of my questions reads: A certain medallion has a mass of 55.64 g. When placed in 75.2 mL of water in a graduated cylinder, the water level rises and then reads 77.8 mL. Is the medallion made of platinum (D=21.4 g/mL) or silver (D= 10.5 g/mL)? Penny Nom lui répond.
	Converting mass of sand to volume (a sand ceremony)		2007-05-21
		Linda pose la question : I'm getting married. We are having a sand ceremony. The empty bottle we are using holds 800ml. I have bags of colored sand. Each bag is 30g. There is 7 people participating in this ceremony. What I need to find out is how many grams of sand i need for 7 people to participate to fill this jar. Penny Nom lui répond.
	Friction of a skier		2007-03-24
		William pose la question : An olympic skier moving at 20.0 m/s down a 30 degree slope encounters a region of wet snow and slides 145m before coming to a halt. What is the coefficient of friction between the skis and the snow? Stephen La Rocque lui répond.
	Density		2007-02-09
		Judy pose la question : How do I calculate the mass in grams of 125mL of chloroform when d=1.49g/mL. Stephen La Rocque lui répond.
	The density of an irregular wooden block		2007-01-30
		Carlos pose la question : I'm trying to help my son but I don't really have too much knowledge about this topic. he is been asked to convert 10 milliliter to gram, I think that since 1 g = 1ml the answer will be 10 g also there is another question of how of the density of an irregular wooden block is affected if: a) the center is hollow: b) the block is not completely submerged when determining the volume. Stephen La Rocque and Penny Nom lui répond.
	3.253 cubic meters of water		2006-10-31
		Elaine pose la question : a tank full of water that has a volume of 3.253 cubic meters would have a mass of? Penny Nom lui répond.
	If a person who weighs 270 pounds on Earth		2006-05-10
		Chloe pose la question : If a person who weighs 270 pounds on Earth weighs 45 pounds in space, how much would a person weigh in space who weighs 132 pounds on Earth? Stephen La Rocque and Penny Nom lui répond.
	How much does 1300cc of liquid weigh?		2006-04-28
		Debra pose la question : How much does 1300cc of liquid weigh, and how is the formula equated? Stephen La Rocque lui répond.
	Density		2003-02-19
		Rob pose la question : What is the formula for converting cubic feet to pounds? (with any substance) Penny Nom lui répond.
	A two stage rocket		2002-11-26
		Hoda pose la question : a two stage rocket accelerates in free space by ejecting fuel at a constant relative speed , v(ex). the full fuel load makes up 80% of the initial mass of the entire two stage rocket . the rocket accelerates from rest until at the end of the first stage when 75% of its fuel has been burnt. find an expression for the speed of the rocket at the end of the first stage in terms of v(ex). Claude Tardif lui répond.
	Mass of the earth		2000-02-21
		Terry Broughton pose la question : My name is terry i am 15 my question is how much does our planet earth weigh ? Chris Fisher and Harley Weston lui répond.

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