Answer:
Helo
titik dari mana berat badan atau sistem boleh dianggap bertindak. Dalam graviti seragam ia sama dengan pusat jisim. Contoh pusat graviti adalah bahagian tengah gergaji besi.
saya harap ini dapat membantu anda :)
Explanation:
Answer:
the equilibrium bond length of H137I is
Explanation:
The quantum state has a rotational energy which can be expressed mathematically
Here,
B is the rotational constant given as
We are given from the question that
Substituting we have
Where,
h is plank constant
r is radius
I is moment of inertia
Making the subject
The moment of inertia = Reduced mass ×
Therefore
Making the subject of the formula
Increased Evaporation/B is correct :p
The charge on an electron is negative one
Answer:
Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding. Sometimes we want to reduce friction.
Explanation: