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A girl uses a rule to measure the length of a metal rod.
Because the end of the rule is damaged, she places one end of the rod
at the 1 cm mark as shown
How long is the metal rod?
1 attachment
metal rod
-
damaged
end
5
1
2
3
4
5
6
7
cm
OA.
43 mm
OB. 46 mm
OC. 53 mm
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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 = ?