Question: 1. How long does it take for a radio wave to travel 3000 mi across the United States? 2. How long does it take for

1. How long does it take for a radio wave to travel 3000 mi across the United States?
2. How long does it take for a flash of light to travel 100 m?
3. How long does it take for a police radar beam to travel to a truck and back if the truck is 115 m from the radar unit?
4. How far away (in km) is an airplane if the radar wave returns to the scanning radar unit in 1.24 x 10-3 s?
5. An auto mechanic uses a strobe light to time a classic car engine. If the light is held 0.20 m from the flywheel and the mechanic’s eye is 0.75 m from the strobe, how long does it take the light from the strobe to reach the mechanic’s eye?
6. A construction company uses GPS technology to monitor the location of certain equipment. If the satellite is 18,250 mi above the earth, how long does it take a signal to travel to the satellite and back?

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