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stiv31 [10]
3 years ago
5

The north and south poles of a magnetic field produced by an electromagnet will switch when the direction of the BLANK changes.

Physics
1 answer:
joja [24]3 years ago
8 0
The north and south poles of a magnetic field produced by an electromagnet will switch when the direction of the Current changes.
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A rocket starting from its launch pad is subjected to a uniform acceleration of 100 meters/second2. Determine the time needed to
balandron [24]
The velocity is the integral of acceleration.  If acceleration is 100 m/s^2 then velocity is:

v= \int\limits^{}_{}100 \, dt=100t

So to know the velocity at any time, t, we just put t in seconds into this equation.  To know at what time we get to a certain velocity, we set this equation equal to that velocity and solve for t:

100t = 1000 \\  \\  t= \frac{1000}{100} =10s

 
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Discuss the effects of breaking a food chain.
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Explanation:

Food chain is linear sequence of the organisms through which the nutrients and the energy pass as one organism eats the another.

<u>If one species in the food chain ceases to exist, the other members in rest of chain could cease to exist too or may increase in population which can affect other food chains. (Breaking of food chain).</u>

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For example in the food chain,

Grass ----  Deer ------ Lion

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Which of the following would increase the elastic force acting on that object
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Answer:

Which of the following would increase the elastic force acting on that object? Moving a spring to an unstretched position. Compressing a spring twice as much as its starting position.

Explanation:

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Which statement describes an example of static electricity?
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When jumping down from a table to the ground, it is helpful to bend your knees when you hit the ground because...
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This reduces the average force applied during the landing process/ or you can say it reduces the impact your body takes.

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