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Brilliant_brown [7]
3 years ago
14

The more diverse an ecosystem is —

Physics
2 answers:
V125BC [204]3 years ago
5 0

Answer:

C

Explanation:

charle [14.2K]3 years ago
3 0

The correct answer is C: the more sustainable it is

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A radio wave has a wavelength of 300 m. The wave moves with a speed of 3.0 × 108 m/s. What is the frequency of the radio wave? A
NemiM [27]

           Frequency  =  (speed)  /  (wavelength)

                             = (3 x 10⁸ m/s)  /  (300 m)

                             =      1 x 10⁶ per sec

                             =      1 mHz 

This frequency is the " 1000 " or " 100 " that's marked
in the middle of your AM radio dial.

If there's an AM station in your city that broadcasts on 1000 kHz
and you tune your radio to it, you're picking up radio waves 
that are 300 meters long.  (about 0.19 of a mile)
5 0
3 years ago
The precision of a laboratory instrument is ± 0.05 g. The accepted value for your measurement is 7.92 g. Which measurements are
Step2247 [10]

Answer:

b)7.89 g  

c) 7.91 g

d) 7.97 g

Explanation:

The accepted value for the measurement is 7.92 g, while the precision of the instrument is 0.05 g. Therefore, the interval of the accepted values will be the central value plus and minus the precision, so:

- Minimum accepted value: 7.92 g - 0.05 g = 7.87 g

- Maximum accepted value: 7.92 g + 0.05 g = 7.97 g

So, the accepted interval is

7.87 g - 7.97 g

Therefore, all the values that lie within this interval are accepted. So the accepted values are:

b)7.89 g  

c) 7.91 g

d) 7.97 g

8 0
3 years ago
The current supplied by a battery as a function of time is I(t) = (0.88 A) e^(-t*6 hr). What is the total number of electrons tr
Nimfa-mama [501]

Answer:

N = 1.2 \times 10^{23}

Explanation:

As we know that the current through the battery is given as

i = (0.88 A) e^{-t/6}

here from above equation we know that current will become zero when time elapsed is very large

so here we can say that charge will flow through the battery from t = 0 to t = infinite

now we have

q = \int i dt

q = \int (0.88 A) e^{-t/6} dt

q = 0.88\times -6(3600)\times (e^{-t/6})

q = -1.90 \times 10^{4} (0 - 1)

q = 1.90 \times 10^{4} C

As we know that

q = Ne

N = \frac{q}{e}

N = \frac{1.90 \times 10^4}{1.6 \times 10^{-19}}

N = 1.2 \times 10^{23}

4 0
3 years ago
ou are to drive to an interview in another town, at a distance of 300 km on an expressway. The interview is at 11:15 a.m. You pl
Shkiper50 [21]

Answer:

133.62 kmh.

Explanation:

Time provided = 3.25 hours.

Distance to be covered 300 km

Times spent in first  100 km = 1 hour

Time spent in next 43 km

= 43 / 40 = 1.075 hours

Total time spent = 2.075 hours

Total distance covered = 143 km

Distance remaining = 300 - 143

=157 km .

Time remaining = 3.25 - 2.075

= 1.175

Speed required = Distance remaining / time remaining

= 157 / 1.175

= 133.62 kmh.

8 0
3 years ago
Pls help its about baseball and energy <br><br><br> (one question)<br><br><br><br> '^'
avanturin [10]
The answer would be A. As the bat is swung, it gains kinetic energy. But once it hits the ball, it loses, or transfers, it’s kinetic energy to the ball.
5 0
3 years ago
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