Question

A 200 kg. satellite is lifted to an orbit of 2.2 x 104 km radius. If the radius and mass of the earth are 6.37 x 106 m and 5.98 x 1024 kg respectively, how much additional
potential energy is required to lift the satellite?
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Answer 1

Answer:

question inappropriate

please check it

Answer 2

direct or random Access file

sequential files are the best suited for batch processing but they are not suitable for online enquiry random Access file organisation provides a means of accessing records directly. in this method of organisation each record has its own address on the file by the help of which it can be directly accessed by reading or writing the record need not to be any sequence within the file and also need not to be at just a location on the storage medium source files cannot be created in step medium they are created only in the disks.