The greek mathematician eratosthenes (ca. 276-195 b. c.) measured the circumference of the earth from the following observations. he noticed that on a certain day the sun shone directly down a deep well in syene (modern aswan). at the same time in alexandria, 500 miles north (on the same meridian), the rays of the sun shone at an angle of 7.2° to the zenith. use this information and the figure to find the radius of the earth. (round your answer to the nearest ten miles.)use this information and the figure to find the circumference of the earth.
Answers: 1
Physics, 22.06.2019 02:00
Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *
Answers: 1
Physics, 22.06.2019 04:30
Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.
Answers: 2
Physics, 22.06.2019 17:00
Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths
Answers: 1
The greek mathematician eratosthenes (ca. 276-195 b. c.) measured the circumference of the earth fro...
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Mathematics, 02.07.2020 01:01
Social Studies, 02.07.2020 01:01