German physicist Werner Heisenberg related the uncertainty of an object's position (Δ) to the uncertainty in its velocity (Δ) Δ≥ℎ4Δ

where ℎ is Planck's constant and is the mass of the object.

The mass of an electron is 9.11×10−31 kg.

What is the uncertainty in the position of an electron moving at 8.00×106 m/s with an uncertainty of Δ=0.01×106 m/s?

a) the particles of the chair are strongly held together.

the answer is minerals.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied