Q: The acceleration of gravity means that for each second that passes, falling objects move 9.8m? A:True
2 answers:
Answer:
False
Explanation:
If the object covers 9.8 m every second then it has a constant velocity of 9.8 m/s
The acceleration implies that there is a change in velocity. With a constant acceleration the velocity will change linearly.
The distance traveled each second will not be a constant, it will be a quadratic function as mentioned above.
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The diagram shows a simple electric generator. The needle that measures electric current will move back and forth between a largely positive and a large negative value.
- What is an electric generator?
- An electric generator is physically equivalent to an electric motor. but it converts mechanical energy into electrical energy.
- The electrical field generated is dependent on the inclination of the wire with respect to magnetic field lines, and this inclination changes over time,
because of that she will experience a varying electrical field, and thus a varying electric current will be zero.
The maximum positive value will occur when the wire is perpendicular to the magnetic field lines after one-fourth of rotation, and then zero.
Hence option C is correct.
The diagram shows a simple electric generator. The needle that measures electric current will move back and forth between a largely positive and a large negative value.
Learn more about electric generator here:
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