21 (a) These are the distances above the surface of the Earth of five satellites, A, B, C, D and E. Each distance is in kilometres. A B C D E 35 800 7.8#102 1.5#106 535 2#104 (i) Write these distances in order, starting with the shortest. .................... , .................... , .................... , .................... , .................... [2] shortest (ii) The radius of Earth is 6370 km. Satellite A is k times further from the centre of Earth than satellite D. Show that k = 6.11 correct to 2 decimal places. [2] (b) A satellite travels at a speed of 27 000 km/h. Find the distance the satellite travels in 95 minutes. ............................................ km [2] (c) A different satellite travels at a speed of 25 200 km/h. Convert this speed into m / s. .......................................... m / s [2] (cid:300)(cid:213)(cid:266)(cid:174)(cid:288)(cid:180)(cid:237)(cid:200)(cid:245)(cid:207)(cid:298)(cid:197)(cid:266)(cid:224)(cid:251)(cid:181)(cid:260)(cid:215) © UCLES 2025 (cid:300)(cid:194)(cid:284)(cid:242)(cid:216)(cid:296)(cid:273)(cid:248)(cid:224)(cid:258)(cid:253)(cid:200)(cid:243)(cid:285)(cid:195)(cid:300)(cid:277)(cid:258) 0580/33/M/J/25 (cid:293)(cid:181)(cid:229)(cid:277)(cid:245)(cid:245)(cid:229)(cid:277)(cid:277)(cid:229)(cid:213)(cid:197)(cid:197)(cid:277)(cid:293)(cid:181)(cid:213)(cid:213) M SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD * 0000800000017 * 17 (cid:44)(cid:1)(cid:1)(cid:1)(cid:1)(cid:9)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:2)(cid:8)(cid:44) NIGRAM DFD