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3 years ago

11

As we move above up from one trophic level to another in an energy pyramid, what happens to the energy?

1 answer:

Shkiper50 [21]3 years ago

3 0

As we move above up from one trophic level to another in an energy pyramid, what happens to the energy?

a. It decreases from one trophic level to another.
b. It remains the same for each trophic level.
c. It increases from one trophic level to another.

As we move above up from one trophic level to another in an energy pyramid, the energy level decreases from one trophic level to another. The answer is letter A.

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The Gulf Stream off the east coast of the United States can flow at a rapid 3.3 m/s to the north. A ship in this current has a c

never [62]

Answer:

2.29 m/s

Explanation:

given,

Speed of the stream to north,x = 3.3 m/s

speed of the ship,z = 8 m/s

Speed of the stream is in north direction, to move the ship in west direction ship should move in south direction.

To solve this a right angle triangle is constructed.

where speed of the stream is base and speed of cruise is hypotenuse.

now, speed of ship with respect to ground

z² = x² + y²

y² = z² - x²

y² = 8² - 3.3²

$y = \sqrt{53.11}$

y = 2.29 m/s

Hence, the speed of the ship with respect to ground is equal to 2.29 m/s.

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2 years ago

Which statement best describes the movement of electrical current when a capacitor is used in a circuit?

Masteriza [31]

Answer: B.

Capacitors prevent current from moving through a circuit

Explanation:

If a direct voltage is applied on the capacitor, no conduction current flows through the capacitor if its insulating medium is perfect insulator. This is due to the fact that there are no free charge carriers in such medium. Basically the real insulator contains very few charge carriers and therefore a very small leakage current passes in the capacitor depending on the conductivity of the insulator.

If an alternating voltage is applied on the capacitor, a displacement current passes through the capacitor irrespective of the insulating medium. This current is termed also the capacitive current. It flows because of changing electric displacement with time.

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3 years ago

What are the different kinds of forces?

Anon25 [30]

Gravity, friction, and air resistance are some examples.

6 0

3 years ago

Read 2 more answers

Which organ system do you think is the most interesting? Why?

klasskru [66]

The reproductive system because without that we would not exist , but the same thing could be said about any other systems but the reproductive system is the reason why were here today .

3 0

3 years ago

21. A toy car starts from rest and begins to

Bond [772]

Answer:

v = 66 m/s

Explanation:

Given that,

The initial velocity of a car, u = 0

Acceleration of the car, a = 11 m/s²

We need to find the final velocity of the toy after 6 seconds.

Let v is the final velocity. It can be calculated using first equation of motion. It is given by :

v = u +at

v = 0 + 11 m/s² × 6 s

v = 66 m/s

So, the final velocity of the car is 66 m/s.

8 0

3 years ago