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Alex777 [14]
3 years ago
14

Green sea turtles eat sea grass that grows on the sea floor. Seagrass, a foundation species, provides an important breeding grou

nd for fish and other marine organisms. A conservation program for the green sea turtles plans to introduce more turtles into an ecosystem. What could be the immediate effect of this on the ecosystem?
A) More species of fish would migrate to the region.
B) The new turtles would drive out the existing population.
C) The region would witness a spurt in the growth of sea grass.
Eliminate
D) There would be a decrease in the population of marine organisms.
Physics
2 answers:
d1i1m1o1n [39]3 years ago
3 0
The answer is D. <span> There would be a decrease in the population of marine organisms. </span>
Agata [3.3K]3 years ago
3 0

The answer is D.  There would be a decrease in the population of marine organisms.


Populations are effected not only because of predation but also due to habitat loss caused by the introduction of a new species into the ecosystem. If more sea turtles are added into the region they would deplete the sea grass, causing a decrease in the population of marine organisms due to the loss of breeding grounds and food source.

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When a sinusoidal wave with speed 20 m/s , wavelength 35 cm and amplitude of 1.0 cm passes, what is the maximum speed of a point
vova2212 [387]

To solve this problem it is necessary to apply the concepts related to frequency as a function of speed and wavelength as well as the kinematic equations of simple harmonic motion

From the definition we know that the frequency can be expressed as

f = \frac{v}{\lambda}

Where,

v = Velocity \rightarrow 20m/s

\lambda = Wavelength \rightarrow 35*10^{-2}m

Therefore the frequency would be given as

f = \frac{20}{35*10^{-2}}

f = 57.14Hz

The frequency is directly proportional to the angular velocity therefore

\omega = 2\pi f

\omega = 2\pi *57.14

\omega = 359.03rad/s

Now the maximum speed from the simple harmonic movement is given by

V_{max} = A\omega

Where

A = Amplitude

Then replacing,

V_{max} = (1*10^{-2})(359.03)

V_{max} = 3.59m/s

Therefore the maximum speed of a point on the string is 3.59m/s

8 0
3 years ago
Which is the correct unit for electrical power?<br> a) amp<br> b) volt<br> c) watt<br> d) coulomb
musickatia [10]
T<span>he correct unit for electrical power is "watt".
</span>

That<span>’s actually the unit that measures the rate per time that electric energy is transferred.</span>

<span>
</span>

<span>Have a nice day! :)</span>

8 0
3 years ago
Read 2 more answers
A car moves in a straight line at 22.0 m/s for 10.0miles, then at 30.0 m/s for another 10.0miles. Calculate the car’s average sp
maw [93]

Answer: 25.38 m/s

Explanation:

We have a straight line where the car travels a total distance D, which is divided into two segments d=10 miles:

D=d+d=2d (1)

Where d=10mi \frac{1609.34 m}{1 mi}=16093.4 m

On the other hand, we know speed is defined as:

S=\frac{d}{t} (2)

Where t is the time, which can be isolated from (2):

t=\frac{d}{S} (3)

Now, for the first segment d=16093.4 m the car has a speed S_{1}=22m/s, using equation (3):

t_{1}=\frac{d}{S_{1}} (4)

t_{1}=\frac{16093.4 m}{22m/s} (5)

t_{1}=731.518 s (6) This is the time it takes to travel the first segment

For the second segment d=16093.4 m the car has a speed S_{1}=30m/s,  hence:

t_{2}=\frac{d}{S_{2}} (7)

t_{2}=\frac{16093.4 m}{30m/s} (8)

t_{2}=536.44 s (9) This is the time it takes to travel the secons segment

Having these values we can calculate the car's average speed S_{ave}:

S_{ave}=\frac{d + d}{t_{1} + t_{2}}=\frac{2d}{t_{1} + t_{2}} (10)

S_{ave}=\frac{2(16093.4 m)}{731.518 s +536.44 s} (11)

Finally:

S_{ave}=25.38 m/s

3 0
3 years ago
Which of the following is a type of natural disaster that has impacted Florida? A. Avalanche B. Flood C. Typhoon D. Volcano
snow_tiger [21]

Answer:

B-flood

Explanation:

The Sunshine State is famous all around the world for many great things but also is famous because of a big array of natural disasters.From hurricanes, tropical storms, tornadoes, to fires and floods many natural disasters in Florida affect the lives of residents.

7 0
3 years ago
Read 2 more answers
The distance a wave moves from resting position
tekilochka [14]

Answer:

waving

Explanation:

it waves go to a beach and see water doesn't rest it waves

6 0
3 years ago
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