Answer:
U = 102.8 J (100 J to two significant digits)
Explanation:
potential energy converted = 20(9.8)(1.8) = 352.8 J
kinetic energy at base of track = ½(20)5.0² = 250 J
energy (work) of friction 352.8 - 250 = 102.8 J
Absorption occurs when <span>all of the energy from light waves is transferred to a medium! </span>
Answer:
the moe weight you have in the marble, the higher the speed on the way down
Explanation:
