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2 years ago

The diagram below shows a desert food web. How will a large decrease in the number of rats impact the food web shown above?

Physics

2 answers:

Nookie1986 [14]2 years ago

7 0

Answer:

Decrease of snake, coyote, and hawk population. Increase of sagebrush and cacti.

Reasons:

The rats are aten by the snake coyote and hawks so if a food source is taken from them they are going to have to fight more for food. The rats eat the sagebrush and cacti so if they arent getting eaten as much, they have mroe ime to produce.

mel-nik [20]2 years ago

4 0

The snakes would slowly die off because it is there only source of food.

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How many photons per second are emitted by the antenna of a microwave oven if its power output is 1.00 kw at a frequency of 2515

Norma-Jean [14]

The power of the antenna is
$P=1.00 kW=1000 W$
and since the power is the emitted energy divided by the time, the energy emitted per second is
$E=Pt = (1000 W)(1 s)=1000 J$

The frequency of the emitted photons is
$f=2515 MHz=2.515 \cdot 10^9 Hz$
So the energy of a single photon is
$E_1=hf=(6.6 \cdot 10^{-34} Js)(2.515 \cdot 10^9 Hz)=1.66 \cdot 10^{-24} J$

Therefore, to find the number of emitted photons per second, we should divide the total energy emitted by the antenna in 1 second by the energy of a single photon:
$N= \frac{E}{E_1}= \frac{1000 J}{1.66 \cdot 10^{-24} J}= 6.02 \cdot 10^{26}$

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babunello [35]

Answer:

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earnstyle [38]

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Explanation:

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Hope This Helped

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1 year ago

ОТВЕТЬТЕ !!!!СРОЧНО!!!

FromTheMoon [43]

Answer:

ответ 1.25 × 10‐³ и вот ваш ответ

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