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liq [111]
3 years ago
13

Jayden was given a marshmallow and a syringe in class to experiment with. She placed the marshmallow in the syringe and sealed t

he end. When she depressed the plunger of the syringe what happened to the marshmallow and why? A) The increased pressure, pushed the molecules closer together, and caused the marshmallow to shrink. B) The decreased pressure, pushed the molecules closer together, and caused the marshmallow to shrink. C) The increased pressure, allowed the molecules to spread apart, and caused the marshmallow to grow larger. D) The decreased pressure, allowed the molecules to spread apart, and caused the marshmallow to grow larger.
Physics
1 answer:
Tju [1.3M]3 years ago
3 0
<h2>Answer:</h2>

The correct option is A.

A) The increased pressure, pushed the molecules closer together, and caused the marshmallow to shrink.

<h2>Explanation:</h2>

Jayden experimented, she placed the marshmallow in the syringe and sealed the end. When she depressed the plunger of the syringe, the pressure increased and pushed the molecules closer together and causes the marshmallow to shrink.

<h2 />
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Which of the following statements is/are true? Check all that apply. A nonconservative force permits a two-way conversion betwee
saul85 [17]

Answer:

A conservative force permits a two-way conversion between kinetic and potential energies.

The work done by a nonconservative force depends on the path taken.

A potential energy function can be specified for a conservative force.

Explanation:

A conservative force is defined as a force whose work done does not depend on the path taken, but only on the initial and final position of motion.

This means that for a conservative force, it is possible to defined a potential energy function U which depends only on the position of the object. An example of conservative force is gravity: the gravitational potential energy of an object, in fact, depends only on its position in the field, not on the path taken.

This behaviour also implies that when an object moves from A to B and then back from B to A, the potential energy gained (or lost) moving from A to B is lost (or re-gained) when moving from B to A. This means that the total mechanical energy (sum of kinetic energy and potential energy) of the object is conserved, and therefore there is a constant conversion between potential and kinetic energy during the motion.

A non-conservative force instead does not show this properties, as the work done by it depends on the path taken, and therefore it is not possible to define a potential energy function. An example of non-conservative force is friction.

According to what we wrote above, therefore, the only correct statements are:

A conservative force permits a two-way conversion between kinetic and potential energies.

The work done by a nonconservative force depends on the path taken.

A potential energy function can be specified for a conservative force.

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3 years ago
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Answer:

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How are magnetic force and distance from an object related
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Explanation:

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<h3>What is the gravitational force?</h3>

The gravitational force ia s type of force has the ability attracts any two objects with mass. Gravitational force tries to pull two masses towards each other.

The value of the gravitational force is given by;

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(5) Similarly, putting the baseball in a plastic case will increase mass, and hence force increases.

Hence the three options are 1,3 and 5.

To learn more about the gravitational force refer to the link;

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