If the octagonal mirror in the michelson apparatus were spun at twice the speed that produced light in the eyepiece, would light still be seen?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.