Answer:
x = 3.5 cm
Explanation:
When spring is used as a lift tool
so the mass suspended on it will have spring force on it
So as per the force equation of mass we can say
now net force on the mass is
here we have
now we have
Answer:
Is the mass number
Explanation:
Every atom is usually identified by using two different numbers:
- Atomic number: generally labelled with Z, corresponds to the number of protons in the nucleus, so Z = p
- Mass number: generally labelled with A, corresponds to the number of protons+neutrons in the nucleus, so A = p + n
To find the number of neutrons in a nucleus, therefore, we can do
n = A - Z
Answer:
No idea now
Explanation:
wil get back to you in few minutes
Explanation:
A molten steel is in a liquid phase of matter. It has no defined volume of shape at this state. The particles inside this materials in this form is randomized by they are still attached to each other.
- On cooling, when the molten steel solidifies and sets into a solid steel beam, the particles take up a fixed position and forms a definite shape and this confers a definite volume on them.
- The randomized particles stops and forms fixed crystals about their lattice.
- This way, the beam can carry and support a fixed amount of load.
