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ad-work [718]
3 years ago
5

Hawks and gannets soar above the ground and, when they spot prey, they fold their wings and essentially drop like a stone. They

have evolved a highly aerodynamic shape that lets gravity build up their speed without having to make the effort of trying to fly at a high speed (See the figure of a diving hawk below. The technical term for this maneuver is "stooping".) For this problem, you may approximate the strength of the gravitational field as g = 10 N/kg.A. If a hawk is slowly soaring at a height of about 150 meters and spots a vole on the ground, folds its wings and begins its dive, with what speed will it be going when it gets to the ground? It's flight isn't powered: it just falls with an acceleration of ~10 m/s2. (Of course, it has to turn a bit above the ground in order not to crash. We will ignore this part of its flight path.)
Physics
1 answer:
denis-greek [22]3 years ago
3 0

Answer:

  v = 54.2 m / s

Explanation:

Let's use energy conservation for this problem.

Starting point Higher

         Em₀ = U = m g h

Final point. Lower

        Em_{f} = K = ½ m v²

        Em₀ = Em_{f}

        m g h = ½ m v²

         v² = 2gh

         v = √ 2gh

Let's calculate

         v = √ (2 9.8 150)

         v = 54.2 m / s

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Help me out with this pe question plz :c
blagie [28]

Answer:

the first one is a group 1 and the second one is d all of the above

Explanation:

6 0
3 years ago
Read 2 more answers
The mass of the Sun is 1. 99 × 1030 kg. Jupiter is 7. 79 × 108 km away from the Sun and has a mass of 1. 90 × 1027 kg. The gravi
german

The gravitational force is s type of force that has the ability to attract any two objects having mass. The gravitational force will be 4.16\times10^{23}.

<h3>What is the gravitational force?</h3>

The gravitational force is s type of force that has the ability to attract any two objects with mass. Gravitational force tries to pull two masses towards each other.

                      F= G\frac{m_1m_2}{r^{2} }

Given,

mass of the sun (m_1)= 1.99\times10^{23} kg

mass of Jupiter(m_2)= 7.79\times10^{8} kg

distance between the sun and Jupiter (r)= 1.90\times10^{27} m

F= G\frac{m_1m_2}{r^{2} }\\\\\\F=4.16\times10^{23}\times\frac{1.99\times10^{23}\times7.79\times10^{8}}{({1.90\times10^{27})^2} }

F= 4.16\times(10)^{23}   Newton

Hence the gravitational force between the sun and Jupiter will be 4.16\times10^{23}

To learn more about  gravitational force refer to the link:

brainly.com/question/24783651

4 0
2 years ago
1. Which of the following is not included
Harrizon [31]

Answer:

cartilage

Explanation:

8 0
3 years ago
The speed of molecules is indirectly related to a measurement called _____.
seraphim [82]

The average speed of all the molecules in an object
or sample of a substance is related to its temperature ...
and not indirectly at all.
 
4 0
3 years ago
Read 2 more answers
10.
myrzilka [38]

Answer:

<em>The new period of oscillation is D) 3.0 T</em>

Explanation:

<u>Simple Pendulum</u>

A simple pendulum is a mechanical arrangement that describes periodic motion. The simple pendulum is made of a small bob of mass 'm' suspended by a thin inextensible string.

The period of a simple pendulum is given by

T=2\pi \sqrt{\frac{L}{g}}

Where L is its length and g is the local acceleration of gravity.

If the length of the pendulum was increased to 9 times (L'=9L), the new period of oscillation will be:

T'=2\pi \sqrt{\frac{L'}{g}}

T'=2\pi \sqrt{\frac{9L}{g}}

Taking out the square root of 9 (3):

T'=3*2\pi \sqrt{\frac{L}{g}}

Substituting the original T:

T'=3*T

The new period of oscillation is D) 3.0 T

4 0
2 years ago
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