A boat sends a sonar signal to find out how deep the ocean is. It takes 10 seconds for the
sig...
Physics, 27.05.2020 07:00, katielloyd
A boat sends a sonar signal to find out how deep the ocean is. It takes 10 seconds for the
signal to hit the ocean bottom and return to the earth. What is the distance to the bottom of the
ocean if the sonar signal moves at 1700 m/s?
Answers: 2
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Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.
Answers: 1
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