Question

derive an expression for gravitational force at a height h from earths surface?​

Answer 1

Answer:

• gh=g(1-2hR), gd=g(1-dR)
• where g is the gravity
• h is the height of an object above earth's surface
• d is the depth taken inside earth's surface
• R is the radius of the earth.

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Answer 2

Silkworm moth, (Bombyx mori), lepidopteran whose caterpillar has been used in silk production (sericulture) for thousands of years. Although native to China, the silkworm has been introduced throughout the world and has undergone complete domestication, with the species no longer being found in the wild.