The cannon is much heavier than the cannonball, so it has the same momentum, but not the same velocity. The cannonball has less mass to overcome, so it accelerates more quickly.
Answer:
The time taken by the car is 8.94 seconds.
Answer:
A measuring cylinder contains 30 cm :))
Explanation: Hope this helps !!!!
To develop this problem it is necessary to apply the concepts related to the calculation of the Force through density and volume as well as the ideal gas law.
By definition, force can be expelled as
F = ma
Where,
m = mass
a = Acceleration
At the same time the mass can be defined as function of density and Volume
Therefore if we do a sum in the spherical balloon we have,
Where,
= Force by weight of balloon
= Force by weight of helium gas
= Buoyant force
Re-arrange to find
Our values are given as,
Replacing the values we have,
Applying the ideal gas law we have finally that
Where,
P = Pressure
Density
M_0 Molar mass (0.004Kg/mol for helium)
R= Gas constant
T = Temperature
Substituting
Therefore the absolute pressure of the helium gas is