(1 point) Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference betw
een its temperature and that of its surroundings. Suppose that the temperature of a cup of coffee obeys Newton's law of cooling. If the coffee has a temperature of 195 degrees Fahrenheit when freshly poured, and 2 minutes later has cooled to 183 degrees in a room at 60 degrees, determine when the coffee reaches a temperature of 143 degrees. The coffee will reach a temperature of 143 degrees in
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Answer:
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Explanation:
u = 1.75 m/s
h = 15 m
Now, for the magnitude of velocity when hitting the deck
Using third equation of motion
v^2 - 1.75^2 = 2×9.8×15
v = 17.15 m/s
the velocity of sandal when it hits the deck is 17.15 m/s this the velocity of sandal relative to the ship
b) velocity relative to a stationary observer on shore
=
=17.23 m/s
To a person aboard the ship, they see the sandal land directly below the release point. A stationary observer on the outside sees the same thing, except the fact that the landing point has translated to the south.