Answer:
solid to gas or gas to liquid
Explanation:
welcome
Answer:
(B) at the middle of the pipe
Explanation:
In the case of an open pipe which vibrates in fundamental mode, an anti-node is formed at the middle of the pipe, here the amplitude of the wave is maximum. Hence, the pressure variation is also maximum at the middle.
Atomic number means the number of protons
Answer:
r = 2.56 10⁻¹² m
Explanation:
For this exercise let's use energy conservation
Starting point, proton too far
Em₀ = K = ½ m v²
Final point. When proton is stop
Emf = U = k q₁ q₂ / r
How energy is conserved
Em₀ = Emf
½ m v² = k q₁ q₂ / r
r = 2k q₁ q₂ / m v²
Let's calculate
r = 2 8.99 10⁸ 1.6 10⁻¹⁹ 1.82 10⁻¹⁸ / (1.67 10⁻²⁷ (3.5 10⁵)² )
r = 2.56 10⁻¹² m