Jj
Grams
You measure its length, breath, height and mass. Then Density = Mass/(Length*Breadth*Mass) in the appropriate units.
Im pretty sure kilograms is appropriate
grams
Because a pencil has a mass of a few grams.
gram
Grams
Slope Gradient
You measure its length, breath, height and mass. Then Density = Mass/(Length*Breadth*Mass) in the appropriate units.
yes
It depends on the coin and feather, but probably a coin. To figure it out, you can divide the weight of each (in Newtons) by 9.81 (acceleration due to gravity) to find the masses, since Mass=(Force)*(Acceleration).
When a coin ages it lowers the mass of a coin because usually some of the metal such as copper on a penny comes off the coin leaving it with a lighter mass then it started off with.
No, if you melt a coin it is still the same mass just in a different form.
Relative molar mass, temperature, and concentration difference/gradient.
The unit won't help you find the mass of the bat. To do that, you need some sort of a scale. Once you've found the mass, you can describe it in terms of any appropriate unit, such as 'poundmass' or 'kilogram'.
50grams
You cant, the mass will always be the same, NO matter what.