Physics - Single MCQs (Page 44)

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Q431. The work done by friction is?...Q432. When arrow is released form its bow, its energy is transformed from?...Q433. When two protons are brought together?...Q434. The escape velocity form the earth surface in km S-1 is?...Q435. The relation between the escape velocity V esc and orbital speed Vo is given byb...Q436. The relation between the escape velocity V esc and orbital speed Vo is given by?...Q437. The consumption of energy by a 60 watt bulb in 2 sec is?...Q438. Work has the dimension as that of same as that of?...Q439. Which of the following is not conservative force?...Q440. One mega watt hour is equal to?...