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jeka57 [31]
2 years ago
9

A current of 2A flows for 2minutes through the wire in a motor. (1) how much charge passes through a wire this time​

Physics
1 answer:
joja [24]2 years ago
3 0

Answer:

240 C

Explanation:

Given:

  • I = 2A
  • t = 2 minutes = 120 seconds

To find:

  • Charge passing through the wire (Q)

Solution: Formula relating Q, I and t is given as:

  • Q = It
  • Plugging the values of I and t in the above equation, we find:
  • Q = 2 * 120
  • -> Q = 240 C

Thus, 240 Coulomb charge will pass through the wire.

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While some aspects are based on ____, body composition is largely a result of ____,
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A stone is thrown vertically upward with a speed of 15.0 m/s from the edge of a cliff 75.0 m high.How much later does it reach t
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Answer:

5.72 seconds

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97.94 m

Explanation:

t = Time taken

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v = Final velocity

s = Displacement

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v=u+at\\\Rightarrow 0=15-9.81\times t\\\Rightarrow \frac{-15}{-9.81}=t\\\Rightarrow t=1.52 \s

Time taken to reach maximum height is 0.97 seconds

s=ut+\frac{1}{2}at^2\\\Rightarrow s=15\times 1.52+\frac{1}{2}\times -9.81\times 1.52^2\\\Rightarrow s=11.47\ m

So, the stone would travel 11.47 m up

So, total height stone would fall is 75+11.47 = 86.47 m

Total distance travelled by the stone would be 75+11.47+11.47 = 97.94 m

s=ut+\frac{1}{2}at^2\\\Rightarrow 86.47=0t+\frac{1}{2}\times 9.8\times t^2\\\Rightarrow t=\sqrt{\frac{86.47\times 2}{9.81}}\\\Rightarrow t=4.2\ s

Time taken by the stone to travel 86.47 m to the water is is 4.2 seconds

The stone reaches the water after 4.2+1.52 = 5.72 seconds after throwing the stone

v=u+at\\\Rightarrow v=0+9.81\times 86.47 = 848.27\ m/s

Speed just before hitting the water is 848.27 m/s

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3 years ago
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