At a given point above Earth's surface, the acceleration due to gravity is equal to 7.8 m/s-. What is the altitude of this point above Earth's surface? (G = 6.67 x 1011 N. m2/kg2, Mearth = 5.97 x 1024 kg, Rearth = 6.38 x 106 m) %3D O 2400 km O 770 km O 1500 km O 970 km

We know that the moon Callisto revolves around Jupiter during a period of 17.0 days.17.0 days. The average distance from the center of Jupiter to the center of Callisto is 1.95×109 m.1.95×109 m. What is the acceleration ?a of Callisto due to its motion around Jupiter?

In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he is blown along the following straight lines: 2.50 km 45.0° north of west; then 4.20 km 60.0° south of east; then 1.50 km 25.0° south of west; then 5.30 km straight east; then 1.90 km 5.00° east of north; then 7.20 km 55.0° south of west; and finally 2.90 km 10.0° north of east. What is his final position relative to the island? (i.e., find the magnitude and direction of the displacement.) km at degrees South of East

An object thrown from a height of 2 m above the ground follows a parabolic path until the object falls to the ground. If the object reaches a maximum height of 7 m after travelling horizontal distance of 4 m, determine the horizontal distance between the object's final position and final position.