NONE of the choices is a correct answer.
Density is (mass) DIVIDED BY (volume).
The volume of the black cube is
2 x 2 x 2 = 8 cm^3
It's density is 48/8 = 6 gm/cm^3
The volume of the yellow cube is
3 x 3 x 3 = 27 cm^3
Its density is 135/27 = 5 gm/cm^3
The black one is denser because the RATIO of its mass to its volume is greater.
The cubes are made of different substances.
The density only depends on the substance. It doesn't matter HOW MUCH of the substance there is. It's the RATIO that counts.
The black one would be denser even if one cube or the other was the size of a supertanker.
Answer:
0.152724283058 rad/s
Explanation:
In this system the angular momentum is conserved
Change in angular velocity is
The change in angular velocity is 0.152724283058 rad/s
Answer:
a whole new glacier will start because the other one is melting
Red light reflects off the card into your eyes and you see the red card as red. The light will just make the card brighter. So A
Answer:
cos to = $ 24
Explanation:
When replacing the bulb only 25% of the energy is used, therefore
W = 0.25 100
W = 25 W
Let's look for the energy in the life of the bulb
E = 25 10⁻³ 12000
E = 300 Kwh
now we can calculate the cost using a direct proportion rule.
Cost = 0.08 300
cos to = $ 24