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Mrac [35]
3 years ago
11

When a 0.1-kilogram pendulum bob reaches the top of its swing, how much kinetic energy does it have?

Physics
1 answer:
zvonat [6]3 years ago
7 0
When ANY pendulum bob reaches the top of its swing,
it stops momentarily and then begins to drop.  At the instant
when it stops, its kinetic energy is zero.
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When bacteria in the soil takes nitrogen from the air it becomes nitrates it can finally move through the food chain in this form.

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3 years ago
Two tugboats are moving a barge. Tugboat A pushes on the barge with a force of 3000n. Tugboat B pulls with a force of 5000 Newto
kenny6666 [7]

The net force on the barge is 8000 N

Explanation:

In order to find the net force on the badge, we have to use the rules of vector addition, since force is a vector quantity.

In this problem, we have two forces:

  • The force of tugboat A, F_A = 3000 N, acting in a certain direction
  • The force of tugboat B, F_B = 5000 N, also acting in the same direction

Since the two forces act in the same direction, this means that we can simply add their magnitudes to find the net combined force on the barge. Therefore, we get

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and the direction is the same as the direction of the two forces.

Learn more about forces:

brainly.com/question/11179347

brainly.com/question/6268248

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5 0
3 years ago
You are standing on a large sheet of frictionless ice and holding a large rock. In order to get off the ice, you throw the rock
kondor19780726 [428]

Answer:

0.4778 m/s

Explanation:

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We are given that the rock's velocity is 12 m/s at 35°. Thus, the horizontal component of this velocity is;

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Thus, to get the person's speed, we know that; momentum = mass x velocity

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Thus;

34.405 = 72 x velocity

Velocity = 34.405/72

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