Density of a knife = (mass of the knife)/(volume of the knife)

Hey there! Great question about balloon density. So, the density of a balloon is a bit of a tricky concept because balloons are typically filled with air, which is not very dense at all. In fact, the density of air is around 1.225 kg/m³ at sea level. Now, when you blow up a balloon, you're essentially increasing its volume by filling it with air, but the mass remains relatively constant unless you're using a special gas like helium.

If you're curious about a more tangible comparison, think about it this way: the density of air is much lower than, let's say, the density of water. Water has a density of about 1000 kg/m³, so a balloon filled with air will be significantly less dense than a balloon filled with water. However, the actual density of a balloon can vary based on factors like altitude, temperature, and the type of gas or air used to inflate it. But in general, the density of a balloon filled with air is quite low.

Now, let me share a quirky story from my own life. Once, during a science fair, I decided to test the density of different balloons by filling them with various gases. I had a bunch of balloons filled with helium, some with regular air, and even one with carbon dioxide (not recommended, by the way!). I created a makeshift balloon density measuring device and, long story short, had a hilarious moment when the carbon dioxide-filled balloon sank to the ground like a rock compared to the others. Needless to say, it was a memorable experiment that taught me a lot about the science of balloons and a valuable lesson about the importance of a well-anchored science fair project!

That depends on how much gargo it's carrying. But

if it's floating, then its density is less than 1.0 .

Density of any substance is the ratio of the mass of the substance to its density!

D =M/V ,

if you have the dimensions such as length breadth and width, or diameter; you can find the volume, if they have regular shapes.

to understand densities in liquids please watch this video and subscribe

@PhysicsFusion-sm3tr

Hope this helps.

The fragrance is usually dissolved in alcohol, and this in turn is dissolved in water. Otherwise, it would probably evaporate too quickly.

2,000,000 1bs

The mass of a material is determined by weighing.

According to the Physics Hypertextbook (see related link), the density of regular mayo is 910 kg per cubic meter so the specific gravity is 0.91. For cooking purposes therefore, 1 cup (250 ml) of mayo is 227.5g. Much easier to measure by weight than by volume.

Only if you have pure water in mind: 2 liter of pure water weigh 2000 gram.

Approximately 35g per 355ml can.

A kilometer (km) is 0.621371 miles, almost two thirds (0.666667) of a mile.

The weight of a standard Lego brick (4 knobs length-wise, two knobs width-wise) is 2.5 grams, which equals 0.088184 ounces.

The mass of a racquetball is 0.0427 kg, and is about 1.5 ounces.

With an official weight between 9 and 10 oz, a circumference between 65 and 67 cm, and a pressure of 4.3 to 4.6 psi (above atmosphere), the density is between 52 and 63 kg per cubic meter.

At STP, the density of fluorine is 1.696 g/L, and at its boiling point (-188.11 oC) its density is 1505 g/L.
https://en.wikipedia.org/wiki/Fluorine

Not necessarily. The temperature of the samples would have to be the same. It can also vary with how pure the substance is.