Answer:
v = √k/m x
Explanation:
We can solve this exercise using the energy conservation relationships
starting point. Fully compressed spring
Em₀ = = ½ k x²
final point. Cart after leaving the spring
= K = ½ m v²
Em₀ = Em_{f}
½ k x² = ½ m v²
v = √k/m x
Answer:
If a force of 40newton is applied to the end of a wire 4m long and produces an extension of 0.24mm. If the diameter of the wire is 2mm, calculate the strain energy
Explanation:
stress=force/area (n/m^2)
strain=deformation/length (m/m)
Linear momentum is conserved, so the speed of the block after
the bullet has passed through it and continued on its way is
(383 · mass of the bullet) divided by (mass of the block)
Answer:
μ = 0.31
Explanation:
The friction force must provide the needed centripetal force
mω²R = μmg
μ = ω²R/g = (2π/1.8)²(0.25) / 9.8 = 0.31
Answer: Amplitude
Explanation: The amplitude of light waves is associated with our experience of brightness or intensity of color, with larger amplitudes appearing brighter.