Write any two features of capital
2 answers:
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Answer:
The force exerted by the ocean tide is directed to the right (east).
The force exerted by the wind is directed to the northwest (45° N of W).
We should separate the x- and y- components of the wind force, and evaluate each component separately.
We denote the direction to the right as the positive direction, so the x-component of the wind force is in the negative direction.
The resultant force is as follows:
The resultant acceleration can be found by Newton's Second Law:
The magnitude of the resultant acceleration is
Answer:
2 revolutions
Explanation:
Assume that when she runs off the edge of the 8.3m high cliff, her vertical speed is 0. So gravitational acceleration g = 9.8m/s2 is the only thing that makes her fall down. So we can use the following equation of motion to calculate the time it takes for her to fall down:
where s = 8.3 m is the distance that she falls, t is the time it takes to fall, which is what we are looking for
Since she rotates with an average angular speed of 1.6rev/s. The number of revolutions she would make within 1.3s is