Pregnancy lasts approximately 9 weeks (63 days) in the cat. However, it is not possible to detect pregnancy during the first 3 weeks. An experienced veterinarian may be able to palpate or feel the fetuses in the uterus of a relaxed cat, as the optimal time for pregnancy palpation is about 28-32 days of pregnancy.
Answers. Relevance. Rating Newest Oldest. The speed of electromagnetic waves in vacuum is the speed of light in vacuum because light is an electromagnetic wave: c = 299,792,458 meters per second, exactly (0.670617 billion mph).
This only refers to the speed of light in vacuum. The speed. of light in di erent mediums will be separate issue and that is what you will be determining. in this experiment. Note, as of January 25, 2016 the current measurement of the speed of. light in vacuum is approximately 299,792,458 m/s. (Nothing in life is certain) You will obtain the velocity of light in air.