Answer:
B
Explanation:
We can logically deduce this by process of elimination we can rule out A because india is a democratic republic we can also rule out C because india has a prime minister and lastly D is ruled out because India's voting age is 18.
Inclined Component of the bicyclist's velocity:
Vi = 500/10 = 50 m/s
Vertical Component of the bicyclist's velocity:
(This is simply the cosine of the Vc)
Vv = 50Sin30 = 25 m/s
The vertical velocity is 25 meters per second.
Answer:
Rusting of irons
Change in molecular composition
irreversible change
Explanation:
chemical change Is an irreversible change so we will only observe permanent change
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