Question

The diameters of the sun, earth, and moon are D1=864,000 mi, D0=7,920 mi, and D2=2,160 mi, respectively. Let R1 be the distance between the sun and the earth and R2 the distance between the earth and the moon. R1 and R2 are not exactly constant due to the eccentricities of the earth's orbits around the sun and moon around the earth. a) Calculate the ratio between R1 and R2 that must be satisfied for a total solar eclipse occurs somewhere on earth. b) A solar eclipse occurs when the The distance from the Earth to the Sun is 92,900,000 mi and the distance from the Earth to the Moon is 226,000 mi. calculate the diameters of the umbra and penumbra on the earth's surface and compare these diameters with the diameter of the earth.​

Answer 1

Respuesta:

????????????????..??????....???