Answer: Option (e) is the correct answer.
Explanation:
There are three types of kinetic energy which are vibrational, rotational and translational kinetic energy.
A plucked string on a guitar will produce sound and it represents vibrational kinetic energy.
The moving blades of a ceiling fan shows the rotation of blades and it represents rotational kinetic energy.
A spinning top also displays rotation therefore, it represents rotational kinetic energy.
A tuning fork struck on a rubber block will produce sound and it will vibrate. Therefore, it represents vibrational kinetic energy.
An apple falling from a tree shows that apple is linearly falls on the ground therefore, it represents translational kinetic energy.
Thus, we can conclude that an apple falling from a tree is the best example which represents translational kinetic energy.
According to Stefan-Boltzmann Law, the thermal energy radiated by a radiator per second per unit area is proportional to the fourth power of the absolute temperature. It is given by;
P/A = σ T⁴ j/m²s
Where; P is the power, A is the area in square Meters, T is temperature in kelvin and σ is the Stefan-Boltzmann constant, ( 5.67 × 10^-8 watt/m²K⁴)
Therefore;
Power/square meter = (5.67 × 10^-8) × (3000)⁴
= 4.59 × 10^6 Watts/square meter
Answer:
Explanation:
Given:
- Length of block,
- Breadth of block,
- height of block,
- Thermal conductivity of the block,
- Temperature on the hotter side,
- temperature on the cooler side,
- time for which the heat flows,
<u>REFER THE ATTACHED IMAGE FOR THE REFERENCE</u>
<em>The rate of heat flow using </em><em>Fourier's law</em><em> of conduction is given as:</em>
<u>Now the amount heat flow perpendicular to the pink surface:</u>
<u>Now the amount heat flow perpendicular to the orange surface:</u>
<u>Now the amount heat flow perpendicular to the green surface:</u>
Answer:
i believe it is dna
Explanation:
if i remember correctly if the dna tells the cell what to do and how to do it
Answer:
When the mass is drawn upwards and let go, the force of gravity accelerates it,
Explanation:
if you send me the video i can give you a better answer its just hard without seeing it
