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Molodets [167]
3 years ago
10

How fast must a 1000 kg car be moving to have a kinetic energy of 2.0*10^3

Physics
1 answer:
lawyer [7]3 years ago
6 0
Kinetic Energy is defined by Ke=1/2mv^2. Plug in and solve for v.

2,000 = 1/2(1000)(v)^2
4=(v)^2
v=2 m/s

The car must move at 2 m/s to have a Ke of 2,000 Joules.
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The charge per unit length on a long, straight filament is -92.0 μC/m. Find the electric field 10.0 cm above the filament.
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Answer:

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Explanation:

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Putting the given values in the equation given above

E = \frac{92\times10^{-6}}{2\times3.14\times8.85\times10^{-12}\times10^{-1}}

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3 years ago
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34kurt
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