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NISA [10]
3 years ago
8

A bullet of mass 0.010 kg and speed of 200 m/s is brought to rest in a wooden block after penetrating a distance of 0.10 m. The

work done on the bullet by the block is
Physics
1 answer:
irina [24]3 years ago
7 0

Answer:

W = 200 J

Explanation:

Work will be equal to the change in kinetic energy

W = ½mv² - 0

W = ½(0.010)200²

W = 200 J

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SpyIntel [72]
  • Answer:

<em>500 sec</em>

<em>8 min 20 sec</em>

  • Explanation:

<em>Hi there !</em>

<em />

<em>8 m ................ 1 s </em>

<em>4000 m ........ x s</em>

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Which type radiation can be observed well from Earth's surface?
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Schach [20]

Answer:

h = 10000 m

Explanation:

The pressure applied at a depth of the liquid is given by:

P =ρgh

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3 years ago
Star X has an apparent magnitude of 1. Star Y has an apparent magnitude of 4. Both stars are in the same star cluster. Which sta
sashaice [31]

Answer:

Explanation:

From the given information:

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1 - 4 = -2.5 log _{10} ( \dfrac{L_1}{L_2})

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Making \dfrac{L_1}{L_2} the subject of the formula:

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=15.84

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Hence, we can conclude that star X is more luminous by a factor of 16

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b

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