Answer:
This is because these metals are used for minting (making) coins.
F=W=mg
12N(given)= m*9.8
m= 1.22 kg
A sphere has reflection symmetry across any plane through its center.
Answer:
Coefficient of friction = 0.5
Explanation:
Given:
Mass of box = 5 kg
Force applied = 20 N
Acceleration = 2 m/s²
Find:
Coefficient of friction
Computation:
Friction force = Mass x Acceleration.
Friction force = 5 x 2
Friction force = 10 N
Coefficient of friction = Friction force / Force applied
Coefficient of friction = 10 / 20
Coefficient of friction = 0.5
Answer:
The earths magnetic field
Explanation:
