In which of the following situations does gravity supply a centripetal force? the space shuttle orbiting the earth a child on a merry-go-round a bike rounding a curve a book falling off a table

the space shuttle orbiting the Earth

Explanation:

Centripetal force is the force that keeps an object in circular motion around some fixed point. Different forces can act as source of centripetal force. Let's see which one in the options given:

the space shuttle orbiting the Earth --> in this case, the centripetal force is provided by gravity: the gravitational attraction between the Earth and the shuttle keeps the shuttle in circular orbit

a child on a merry-go-round --> in this case, friction acts a source of centripetal force, keeping the child along the circular trajectory

a bike rounding a curve --> the centripetal force is provided by the friction between the tires of the bike and the road

a book falling off a table --> this is not a circular motion, so there is no centripetal force.

According to what we have written above, the correct answer is

the space shuttle orbiting the Earth

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i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

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