Answer:
ω = √(2T / (mL))
Explanation:
(a) Draw a free body diagram of the mass. There are two tension forces, one pulling down and left, the other pulling down and right.
The x-components of the tension forces cancel each other out, so the net force is in the y direction:
∑F = -2T sin θ, where θ is the angle from the horizontal.
For small angles, sin θ ≈ tan θ.
∑F = -2T tan θ
∑F = -2T (Δy / L)
(b) For a spring, the restoring force is F = -kx, and the frequency is ω = √(k/m). (This is derived by solving a second order differential equation.)
In this case, k = 2T/L, so the frequency is:
ω = √((2T/L) / m)
ω = √(2T / (mL))
Answer:
t15 kg
Explanation:
add then subtract blah blah blah
Answer: The passage of a light wave can cause electrically charged particles to move up and down.
Explanation:
Electromagnetic waves are transversal waves, they are a combination of oscillating electric and magnetic fields, which propagate through space carrying energy from one place to another.
This means the oscillation of the wave occurs in the transversal direction to its propagation. In addition, electromagnetic waves are spread thanks to the electromagnetic fields produced by moving electric charges.
Answer:
Explanation:
given.
Two flat 4.0 cm × 4.0 cm electrodes carrying equal charge
space between the charges = 2 mm
Electric field strength = 7.6 x 10⁶ N/C
ε ₀ = 8.85 × 10⁻¹² C²/N · m²
magnitude of charge =?
Electric field strength between to two plates
