To solve the problem it is necessary to apply the definition of Newton's second Law and the definition of density.
Density means the relationship between volume and mass:
While Newton's second law expresses that force is given by
F = ma
Where,
m = mass
a= acceleration (gravity at this case)
In the case of the given data we have to,
In equilibrium, the entire system is equal to zero, therefore
Where,
Weight of balloon
Weight of helium gas
Bouyant force
Then we have,
Replacing the values we have that
Now by ideal gas law we have that
But the relation \frac{n}{m} is equal to the inverse of molar mass, that is
Therefore the pressure of the helium gas assuming it is ideal is 0.61Mpa
Answer:
He took a picture (or "shot") of the buffaloes. How cute :)
Answer:
<h2>352.8 Joules</h2>
Explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
PE = 3 × 9.8 × 12
We have the final answer as
<h3>352.8 J</h3>
Hope this helps you
Answer:
Forgot letter
Explanation:
To convert solar energy into chemical energy in the form of NADPH and ATP. First stage of photosynthesis.
Hope this helps.
Answer:
D
Explanation:
The forces have the same magnitude (3N), but different directions. So they are different.
