A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.5 m, and the radius of the Earth is R = 6.38 x 106m. (a) How far is it to the horizon? In other words, what is the dista d from the person's eyes to the horizon? (Note: At the horizon the angle between the line of sight and the radius of the earth is 90°) (b) Express this distance in miles.​

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

In which of the following is positive work done by a person on a suitcase

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?