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aleksandr82 [10.1K]
3 years ago
7

A train travels 1000 m south for 100 s. What is the

Physics
1 answer:
Alexandra [31]3 years ago
5 0
C. 10 m/s
You divide 1000 m by 100 s.
1000/100 to find the velocity
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A block of mass
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<h3>Work done by the applied force</h3>

W = Fdcosθ

W = 14 x 2.1 x cos25

W = 26.65 J

<h3>Work done by the normal force</h3>

W = Fₙd

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<h3>Work done force of gravity</h3>

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<h3> Work done by the net force on the block</h3>

∑W = 0 + 26.65 J = 26.65 J

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The work done by the normal force exerted by the table is 0.

The work done by the force of gravity is 0.

The work done by the net force on the block is 26.65 J.

Learn more about work done here: brainly.com/question/8119756

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2 years ago
intial velocity is 45km/h, final velocity is 0, time taken is 3 seconds,calculate the retradation of the vehicle and distance tr
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Answer:

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1 Answer. The Periodic Table can predict the properties of new elements, because it organizes the elements according to their atomic numbers. Creating new elements is not a simple process. Scientists use a particle accelerator to smash light atoms into a thin metallic foil that contains heavier atoms.

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<em>E = 4.32 x 10⁻⁴ Joule</em>

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