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4 years ago

Identify the role of each organism in the food chain.

Physics

2 answers:

Troyanec [42]4 years ago

5 0

Answer:

primary consumer, secondary consumer, tertiary consumer, producer, decomposer

Explanation:

the grass is the producer, the mushroom is the decomposer, the dragonfly is the primary consumer, the frog is the secondary, and the hawk is the tertiary consumer.

Stels [109]4 years ago

3 0

Answer:

If the dragonfly eats grass, the frog eats the dragon fly, the snake eats the frog, and the hawk the snake. That means:

dragonfly - consumer

frog - consumer

grass - producer

hawk - consumer

If the mushrooms decompose dead organisms. That means:

mushrooms - decomposer

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Answer:

$N_{top}=9.8N\\N_{bottom}=33.4N$

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Explanation:

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$-m\frac{v^2}{R}=-N_{top}-mg\\m\frac{v^2}{R}=N_{bottom}-mg$

Which means:

$N_{top}=m\frac{v^2}{R}-mg=(1.2kg)\frac{(6m/s)^2}{2m}-(1.2kg)(9.8m/s^2)=9.8N\\N_{bottom}=m\frac{v^2}{R}+mg=(1.2kg)\frac{(6m/s)^2}{2m}+(1.2kg)(9.8m/s^2)=33.4N$

The limit for falling off would be $N_{top}=0$ , so the minimum speed would be:

$0=m\frac{v_{min}^2}{R}-mg\\v_{min}=\sqrt{Rg}=\sqrt{(2m)(9.8m/s^2)}=4.4m/s$

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3 years ago

A transformer has a primary voltage of 115 V and a secondary voltage of 24 V. If the number of turns in the primary is 345, how

Eduardwww [97]

Here's a fun and useful factoid:

   The ratio of the voltages on a transformer is the same
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So the ratio of (345 to the secondary turns) is (115V to 24V).

That's a proportion.

   (115/24) = (345/x)

I'll bet you can take it and solve it from here.
Just cross-multiply in the proportion and etc. etc.

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I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

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