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ozzi
3 years ago
15

A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 n. starting from rest, the sle

d attains a speed of 2.0 m/s in 8.0 m. find the coefficient of kinetic friction between the runners of the sled and the snow.
Physics
1 answer:
harina [27]3 years ago
7 0
The abweens is 20 because yes
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Diagram B D c с Which car has: Ke = 100 PE=0? * 1 point A B C D​
erma4kov [3.2K]

Answer:

The car C has KE = 100, PE = 0

Explanation:

The principle of conservation of energy states that although energy can be transformed from one form to another, the total energy of the given system remains unchanged.

The energy that a body possesses due to its motion or position is known as mechanical energy. There are two kinds of mechanical energy: kinetic energy, KE and potential energy, PE.

Kinetic energy is the energy that a body possesses due to its motion.

Potential energy is the energy a body possesses due to its position.

From the principle of conservation of energy, kinetic energy can be transformed into potential energy and vice versa, but in all cases the energy is conserved or constant.

In the diagram above, the cars at various positions of rest or motion are transforming the various forms of mechanical energy, but the total energy is conserved at every point. At the point A, energy is all potential, at B, it is partly potential partly kinetic energy, However, at the point C, all the potential energy has been converted to kinetic energy. At D, some of the kinetic energy has been converted to potential energy as the car climbs up the hill.

Therefore, the car C has KE = 100, PE = 0

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3 years ago
When a substance gains electrons, is it positively or negatively charged?
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Answer:

negative charge

Explanation:

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Katya listed major questions that scientists try to answer when they classify organisms. Her list included the following questio
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Pressure __________ with depth to support the fluid weight above
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Answer:Hydrostatic

Explanation: I think this is the answer, not sure. Sorry

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The electrons can be modeled as forming a uniform shell of negative charge. What net electric field do they produce at the locat
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Answer:

E=0

Explanation:

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