Particles in warm temperature rise while the particles in cooler temperature sink:
Temperature is a calculation of the mean kinetic energy of a substance's atoms or molecules. Heat is the transition of energy from a material at higher to a material at lower temperature. When heat is provided, the particles in liquids and gases acquire kinetic energy, which increases vibration and start moving faster.
Thus as the particles travel farther apart, they take up more space, due to which particles in warm temperature rises, as it allows the liquid or gas to move upward. While cooler liquid or gas travel downward because no external energy is provided to them, thus on acquiring low temperature, the inter-molecular forces between particles increase which deduct spaces between them.
Answer:
Acceleration, a = 1.64 m/s²
Explanation:
It is given that,
A rock is dropped on the moon, its initial velocity u = 0 m/s
Its speed increases from 0 to 4.9 m/s, v = 4.9 m/s
Time taken, t = 3 seconds
We have to find the magnitude of the acceleration due to gravity on the moon. The magnitude of acceleration is given by :
Acceleration, a = rate of change of velocity
a = 1.64 m/s²
So, the value of acceleration of gravity on the moon is 1.64 m/s². Hence, this is the required solution.
Acceleration = (change in speed) divided by (time for the change).
From the figures given in the question, the acceleration is ( 49/3 ) =
16.33 m/sec2
.
There's no way that this is happening on the moon. That acceleration is about 67%
greater
than the acceleration of gravity on the earth's surface. It should be about 83%
less,
or about
1.63 m/sec
2
.
I see the problem now. The '49' in the question should be '
4.9
'.
apex- 1.63 m/s2
Answer:
B is the closest.
Explanation:
Its a direct and obvious lean toward lake and forest
Answer:
B lake for animal and bird for forest.
Answer:
The vortex created is a similar form of kinetic force to stirring, but minus a component that protrudes into the sample container. A vortex is the preferred choice for a host of microbiology and life science applications with sensitive samples or high throughput operations. A typical stirrer faces several limitations – for instance, it can only mix a single sample container at a time.
Answer:
Vortex instrument is used to suspend cells that is, it is a simple device used to mix small vials of liquid in laboratories.
·When you climb a rope, you change ____ energy into ____ energy.
·In the muscle cells in your body, ____ energy is changed into ____ energy.
Any that you know would help!