As a result of his observations, Ole Roemer concluded that eclipses of Io by Jupiter were delayed by 22 min during a six-month period as the Earth moved from the point in its orbit where it is closest to Jupiter to the diametrically opposite point where it is farthest from Jupiter. Using the value 1.50 × 108 km as the average radius of the Earth’s orbit around the Sun, calculate the speed of light from these data.

The wavelength of visible light is from, O 400 m to 700 m O 400 km to 700 km O 400 cm to 700 cm O 400 nm to 700 nm

What percent of directly incident sunlight is transmitted into water (n=1.33)? (Give your answer as a percent.)

You are on a search and rescue team, trying to reach an injured hiker. You can see the light from a cell phone, and you use your compass to determine that the hiker is at an azimuth of 59 degrees (59 degrees east of north) from you. You use a rangefinder to estimate that the hiker is 800 meters away. You need to know the GPS coordinates of the hiker in order to tell the rescue helicopter where to find the hiker. (Keep at least one decimal place in your answer.) How many meters north of you is the hiker? m. How many meters east of you is the hiker?