Which scientist built a radio transmitting tower at the turn of the 20th century and claimed that he was receiving interplanetary communications with it?

A) Guglielmo Marconi
B) Thomas Edison
C) Nikola Tesla
D) Grote Reber


C

Physics & Space Science

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The diurnal rotation of the stars refers to the

A) apparent rotation of the celestial sphere due to the rotation of the Earth. B) movement of the stars across the sky during daytime hours. C) rate of spin of stars in their formation stage. D) particular constellations that are visible in different times of the year.

Physics & Space Science

A star has a parallax of 0.08 arc seconds. What is its distance?

A. 8 light-years B. 80 parsecs C. 12.5 parsecs D. 125 parsecs E. 8 parsecs

Physics & Space Science

A certain force causes a 50 kg person to accelerate at 1.0 m/s2. The same force applied to a 75-kg person would cause

A. a smaller acceleration. B. the same acceleration. C. a greater acceleration.

Physics & Space Science

Why have so many optical telescopes been built atop Mauna Kea, Hawai'i?

What will be an ideal response?

Physics & Space Science