自然科學 大學 4年以上以前

大一普物 請問這題衛星在橢圓軌道的速率要怎麼算

0. /ASPDPacecTatt 1S In a cCIICUultar OTDIt oUU Km 由 誠 Surla OW Inuchn WIL 0 Ge decITeaSE HI moves to anew clircular orblt where (a) 1ts orbitalSpeed.4 lesdsi0wtitl) or(b) 1ts 站 period2S 1026 Shorter? 闊. A satellite is in an elliptical orbit at<altitude Panging from 240 to 910 km. At its highest point, HS moving at 7.53 km/s. How fast 1s it moving at its lowest polnt? 10. A 720-ko spacecraftt has total 中 劑 53 T 和 is in circular orbit around the Sun._ Find (a) its orbital