Answer:
mass of the butter is 2.107 kg
Explanation:
specific gravity = destiny of the substance / density of
the water at 4°C
0.86 = density of the butter / 1000
where density of the water is 1000 kg/m^3 at 4°C
density of the butter = 860kg/m^3
now,
density of the butter = mass of the butter / volume
860 = mass of the butter / 2.45 × 10^-3
( 1 L = 10^ -3 m^3)
mass of the butter = 2.107 kg
can I get brainlist plz
Answer:
The density of the metal sample is 2.70 
Explanation:
Density is a magnitude that allows you to measure the amount of mass in a given volume of a substance. Then, the expression for the calculation of density is the ratio between the mass of a body and the volume it occupies:
Density, according to the International System of Units, is usually expressed in kilograms per cubic meter (kg / m3) or gram per cubic centimeter (g / cm3). Although it can also be expressed in any other unit of mass by volume.
So, for the calculation of density you know that:
- mass of the sample= 10 grams
- volume of the sample = volume on the cylinder after immersion - volume on the cylinder before immersion= 38.7 mL - 35.0 ml = 3.7 mL
Then:
d=2.70
<u><em>The density of the metal sample is 2.70 </em></u><u><em></em></u>
Below are the choices:
<span>The independent variable is the number of dry cells, and the dependent variable is the length of time the bulb works.
</span><span>The independent variable is the length of time the bulb works, and the dependent variable is the number of dry cells.
</span><span>The independent variable is the number of dry cells, and the dependent variable is the amount of energy available.
</span><span>The independent variable is the amount of energy available, and the dependent variable is the number of dry cells.
</span>
I think the answer is <span>The independent variable is the number of dry cells, and the dependent variable is the amount of energy available.</span>
