V= s/t = 400/4.5=800/9 (km/h)
Answer:
this density is in the range of Peridotite type rocks
Explanation:
In this graduated cylinder exercise we can directly read the volume of the rock
V = (35 - 30) cm³
V = 5 cm³
They also indicate the mass of the rock
m = 15.5 gr.
Density is defined as the ratio of mass to volume
ρ = 15.5 / 5
ρ= 3.1 gr /cm³
When checking the attached table this density is in the range of Peridotite type rocks
<u>Answer</u>: oscillating universe theory
<u>Explanation</u>:
- The <em>oscillating universe theory</em> is a modification of the famous big bang theory.
- According to this theory, there are successive cycles of expansion and contraction that occurs in the universe and due to the contraction, the universe gets confined into a very small volume which has a large density.
- When the universe gets confined in such a way then, it is said that a 'bounce' will occur and,<em> it would thus oscillate between the big bang and the big crunch.</em>
- Thus, this theory states that for<em> every big bang there is a big crunch.</em>
Answer:
virtual
Explanation:
because the light rays do not meet at the image position
the other options are definitely wrong because
characteristics of a plane mirror images are that,
it is the same size as the object
it is upright