In november 2003, the now-most-distant-known object in the solar system was discovered by observation with a telescope on mt. palomar. this object, known as sedna, is approximately 1700km in diameter, takes about 1.05×104 years to orbit our sun, and reaches a maximum speed of 4.64km/s . calculations of its complete path, based upon several measurements of its position, indicate that its orbit is highly elliptical, varying from 76.0au to 942au in its distance from the sun, where au is the "astronomical unit," which is the average distance of the earth from the sun 1.50×108km . part a what is sedna's minimum speed? part b at what points in its orbit do its maximum and minimum speeds occur? part c what is the ratio of sedna's maximum kinetic energy to its minimum kinetic energy?

Abox is pushed down at an angle of 32 degrees on a rough surface. the box moves to the right.what equation should be used to find the net force in the y-direction? answers: a. fnet,y = fn - fgb. fnet,y= fp - ffc. fnet,y = fn-fg- fpcos(32)d. fnet,y = fn-fg-fpsin(32)

Part a determine the magnitude of the x component of f using scalar notation. fx f x = nothing lb request answer part b determine the magnitude of the y component of f using scalar notation. fy f y = nothing lb request answer part c determine the magnitude of the z component of f using scalar notation. fz f z = nothing lb request answer provide feedback figure1 of 1a force vector acting on a ring attached to the ground is shown in the xyz space together with its x, y, and z components lying on the corresponding positive axes. the ring is located at the origin. force f is located in the first octant. f makes an angle of 60 degrees with its x component and an angle of 45 degrees with its y component. a force vector acting on a ring attached to the ground is shown in the xyz space together with its x, y, and z components lying on the corresponding positive axes. the ring is located at the origin. force f is located in the first octant. f makes an angle of 60 degrees with its x component and an angle of 45 degrees with its y component.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to