The greek letter λ (lamda) is used to represent the wavelength of the wave.
Answer:
I believe the answer is (by ADDING kinetic energy and potential energy)
Are their any answer choices?
Explanation:
The answer is A. Pain Relievers
It must be noted that during an elastic collision both the momentum and kinetic energy are conserved. For the kinetic energy, it can be solved through the equation,
KE = 0.5mv²
Equating the kinetic energies before and after collision,
0.5(60)(8 m/s)² = (0.5)(60)(x²) + (0.5)(0.45)(35 m/s)²
The value of x from the equation is approximately 7.40 m/s