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KiRa [710]
3 years ago
14

Which of the following adaptations best protects birds from bird catchers?

Physics
2 answers:
andrew-mc [135]3 years ago
5 0
Wings to fly. Without flying, birds would be near defenseless.
Elanso [62]3 years ago
4 0
Well all of these answer choice technically could be correct, (Depending on the circumstances) but the most logical answer is wings to fly. without wings to fly how would they escape a dangerous situation? but lets just say what if the bird couldn't fly? the most logical answer would be dark colors because the bird has the ability to conceal itself from predators because of the dark colors. like I said before, all of these answer choice would technically be correct but the correct answer is D) WINGS TO FLY!!!!!!


Hope I was able to help,~kashout kam
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Which statement explains the similarity between momentum and kinetic energy of an object?
Anon25 [30]

Answer:B.

Both increase as the mass and velocity increase.

3 0
3 years ago
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One difference between a solar flare and a CME is that a solar flare is composed of ___________, while a CME is composed of ____
JulsSmile [24]

Answer:

magnetic energy (proton) and magnetic plasma.

Explanation:

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6 0
3 years ago
A 1 900-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.00 m before coming into contact
Leno4ka [110]

Answer:

471392.4 N

Explanation:

From the question,

Just before contact with the beam,

mgh = Fd.................... Equation 1

Where m = mass of the beam, g = acceleration due to gravity, h = height. F =  average Force on the beam, d = distance.

make f the subject of the equation

F = mgh/d................ Equation 2

Given: m = 1900 kg, h = 4 m, d = 15.8 = 0.158 m

Constant: g = 9.8 m/s²

Substitute into equation 2

F = 1900(4)(9.8)/0.158

F = 471392.4 N

6 0
3 years ago
A man wishes to lift a stone weighing 1440 N, using a first-class lever that measures 5 meters. What force should it perform if
Crazy boy [7]

Answer:

3360 N

Explanation:

In a first-class lever, the effort force and load force are on opposite sides of the fulcrum.

The lever is 5 m long.  The load force is 1.50 m from the fulcrum, so the effort force must be 3.50 m from the fulcrum.

The torques are equal:

Fr = Fr

(1440 N) (3.5 m) = F (1.5 m)

F = 3360 N

4 0
3 years ago
Find the momentum of a 500,000 kg train that is stopped on the tracks?
Aneli [31]

Answer:

The answer should be A) 0m/s

Explanation:

It is stopped on the train tracks therefore it is not moving.

Please tell me if I am wrong because I'm not 100% sure on this. Hope it's right and that it helped you.

5 0
3 years ago
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