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yawa3891 [41]
3 years ago
7

For each pair; which has higher kinetic energy?

Chemistry
2 answers:
alexandr402 [8]3 years ago
8 0

Answer:

(a) A sled sliding down a hill has more kinetic than a sled resting at the top of the hill

(b) water falling over the dam has more kinetic than water above a dam

Explanation:

Kinetic energy is a type of energy that is related to the movement of bodies. The result of kinetic energy is intrinsically linked to the mass value of the object and its velocity of movement.

In short, kinetic energy is generated through movement. For this reason, we can prove that a sled down a hill has more kinetics than a sled resting on the top of the hill just as the water falling on the dam has more kinetics than the water above the dam.

RideAnS [48]3 years ago
6 0

Explanation:

Kinetic energy is defined as the energy obtained by an object due to its motion. Whereas energy obtained by an object due to its position is known as potential energy.

(a)   When a sled is resting at the top of a hill then it means the sled in not moving. Hence, then it has only potential energy. But when a sled sliding down the hill  then it is moving from its initial position.

Hence, when a sled is sliding down the hill then it has higher kinetic energy.

(b)    When water is above the dam then it only has potential energy but when the water falls over the dam then it has higher kinetic energy.

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To find the mass, you first need to find the moles NaCl. This value can be found using the molarity ratio:

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After you convert mL to L, you can plug the given values into the equation and simplify to find moles.

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(Step 2)

Now, you can use the molar mass to convert moles to grams.

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