Answer: 330 m
Explanation:
The speed of sound 
is defined as the distance traveled by the sound wave 
in a especific time 
:
Where:
is the speed of sound
is half the time the sound wave travels since the person speaks, the sound wave hits the hill and then returns to the person again as an echo
is the distance between the person and the hill
So, we have to find :
Finally:
Answer:
<h2>3 kg </h2>
Explanation:
The mass of the ball can be found by using the formula
f is the force
a is the acceleration
We have
We have the final answer as
<h3>3 kg</h3>
Hope this helps you
The number of protons
number of neutrons=the mass number- number of protons
14-6=8
I don’t see any picture sorry I wish I can help tho
The temperature at which the sample of liquid turns to gas at 135 °C is termed as boiling point.
Answer: Option A
<u>Explanation:
</u>
The observation of conversion of liquid to gas indicates that there is occurrence of change in the state of matter. The inter-conversion from one state to another can be done by either varying the temperature or by varying the pressure.
In this case, the liquid on heating gets converted to gaseous state after attaining a particular temperature say 135 °C. So, this process of conversion from liquid to gaseous state on heating is termed as boiling.
The temperature at which a liquid converts to gas is termed as the boiling point of that liquid.
