<u>Answer</u>
The volleyball should exert the same 20 N on Ana.
<u>Explanation</u>
The 3rd Newton's law of motion states that, for any action, there is an equal and opposite force.
This means a body placed on top of a table exerts a force, say X N, on the table. For the table to hold that body it must be exerting an equal force (X N) to the body.
∴ If Ana exerts a force of 20 N on the volleyball, the volleyball should exert the same 20 N on Ana.
The best answer choice here is B. =)
Given that,
Output power = 87 W
Decibel reading = 120 dB
We need to calculate the intensity of sound
Using formula of intensity of sound
Put the value into the formula
We need to calculate the distance
Using relation of power out[ut and intensity
Put the value into the formula
Hence, The distance is 2.63 m
Answer:
convert thermal energy into mechanical energy
Explanation:
Thermodynamics generally deals with the energy changes in chemical reactions and how its affect or its influence of energy on those changes. It is widely known to be a branch of physics. It deals mainly on heat transfer processes whereby energy in the form of heat is converted into work. It simply covers or the study of energy flow in the world as a whole and the flow relationship to work, heat, the different forms of energy, and entropy.
Answer:
The ability to adapt is important because :
1) It helps in the survival of human beings.
2) It brings more variation to the human kind.
3) It helps the species from getting endangered or extinct.
4) It brings transformation in the adapting kind.
Hope this helps you☺️☺️