A light wave has a frequency of 5.06 × 1014 cycles per second. (a) What is the wavelength? |x 10-7 m (b) According to the table below, what color would you observe?

D) 2376 m/s During an Apollo moon landing, reflecting panels were placed on the moon. This allowed earth-based astronomers to shoot laser beams at the moon's surface to determine its distance. The reflected laser beam was observed 2.52 s after the laser pulse was sent. If the speed of light is 3.00x10 m/s, what was the distance between the astronomers and 10) the moon? A) 3.78x10 m B) 37800000 m 8.40x10 m D) 8.40x10 if you were the first Mars explorer and discovered that when you dropped a hammer if took 0.68 s to fall 0.90 m to the ground, what would you calculate for the gravitational acceleration on Mars? 11) A) 4.32x 10 m/s

Chapter 25: Problem 5: In the year 1178, five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glow in and around it. It is hypothesized that this event created the crater Giordano Bruno, which is right on the edge of the area we can usually see from Earth. a)  How long after the asteroid hit the Moon, which is 3.84 ×10⁵ km away, would the light first arrive on Earth in seconds?

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