The period T of a simple pendulum is given by:
where m is the mass of the pendulum and g is the gravitational acceleration.
The period of the pendulum will increase when the gravitational acceleration decreases.
Answer: Boiling begins at this point
Explanation:
When the vapour of a liquid is equal to the external pressure the molecules are fully energised to be mobile thereby creating more motion, so boiling is achieved.
Answer:
Explanation:
Given that,
Heat required, Q = 1200 J
Mass of the object, m = 20 kg
The increase in temperature,
We need to find the specific heat of the object. The heat required to raise the temperature is given by :
So, the specific heat of the object is .
have a well thought out plan to begin with
Answer:
The value is
Explanation:
From the question we are told that
The depth at which the bubble is released is
The volume of the air bubble is
Generally from the ideal gas law
Given that n , R , T are constant we have that
So
Here is the pressure of the bubble at the depth where it is released which i mathematically represented as
Here is the atmospheric pressure with value
and is the pressure due to the depth which is mathematically represented as
So
=>
Here is the density of pure water with value
is the volume of the bubble at the depth where it is released
is the pressure of the bubble at the surface which is equivalent to the atmospheric temperature
is the volume of the bubble at the surface
So
=>
=>
=>