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More Physics Questions
Brightness of bulb depends on voltage or current?
Consider the following statements. Assertion (A): Lightning conductors prevent buildings from damages in the event of lightning strike. Reason (R): The electric charge conduct to ground through the wire, instead of passing through the structure. Select the correct answer:
Which of the following statements is true? 1. The value of 'g' on Mount Everest is > g 2. The value of 'g' on Mount Everest is < g. 3. After 15 seconds a ball is thrown vertically and returns to the ground. Its velocity is 75 m/s. 4. A ball is returned to the ground after 15 seconds when thrown vertically. Its velocity is 150 m/s.
An object of 20 kg is raised through a height of 2m, what will be the work done by the force of gravity on the object?
1 curie is equal to