Two identical pendulums have the same period when measured in the factory. while one pendulum swings on earth, the other is taken on a spaceship traveling at 95% the speed of light. assume that both pendulums operate under the influence of the same net force and swing through the same angle. when observed from earth, how many oscillations does the pendulum on the spaceship undergo compared to the pendulum on earth in a given time interval? - more oscillations - fewer oscillations - the same number of oscillations

0.11 m/s and 0.28 m/s should be correct

statement #3 on andre"s list is false.

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.