1. What is the gardener's displacement (see the figure below)? Give a general direction, such as south...
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1. What is the gardener's displacement (see the figure below)? Give a general direction, such as south or west. ( Hint : Think of a 3-4-5 triangle, Pythagorean theorem.)
magnitude | __________ m |
2. A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 6.96 ✕ 10 7 km. Radio waves travel at the speed of light (3.00 ✕ 10 8 m/s). How many seconds does it take for the signal to reach the Earth?
3. A ball is dropped from the top of a 83-m-high building. What speed does the ball have in falling 3.1 s?
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