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gladu [14]
3 years ago
11

When a fighter pilot makes a very quick turn, he experiences a centripetal acceleration. When this acceleration is greater than

about 5.5 × g the pilot will usually lose consciousness ("black out"). Consider a pilot flying at a speed of 890 m/s who wants to make a very sharp turn. What is the minimum radius of curvature that he can take without blacking out?
Physics
1 answer:
Ainat [17]3 years ago
7 0

Answer:

16.495 m

Explanation:

a = Centripetal acceleration = 5.5 g

r = Radius of turn

v = Velocity of fighter jet = 890 m/s

g = Acceleration due to gravity = 9.81 m/s²

The direction of the velocity vector keeps constantly changing in centripetal acceleration

a=\frac{v^2}{r}\\\Rightarrow r=\frac{v^2}{a}\\\Rightarrow r=\frac{890}{5.5\times 9.81}\\\Rightarrow r=16.495\ m

The minimum radius of curvature that he can take without blacking out is 16.495 m

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Which of these statements best describes the impact of ocean thermal power and current power on the environment?
zzz [600]

Answer:

A. Current power may decrease the fish population.

Explanation:

The statement that best describes the impact of ocean thermal power and current power on the environment is that current power may decrease the fish population.

The environment is made up of living and non-living components that co-exist and interact with one another.

  • Harnessing current power from ocean movement will seriously affect the fish population.
  • Most fishes are not sedentary. They move and glide through the water.
  • When current power causes a change in the environment of the fish.
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5 0
3 years ago
Kids are pelting a window with snowballs. On average, two snowballs of roughly 300-g mass hit the window each second, moving hor
hram777 [196]

Answer:

The average force exerted on the window due to two snowballs is 6 N

Explanation:

Given:

Mass of snowballs m = 300 \times 10^{-3} Kg

Velocity of snowball v = 10 \frac{m}{s}

For finding the average force,

Force is equal to the change in momentum,

   F = \frac{dP}{dt}

Here, final velocity is zero so we write,

 F = \frac{mv}{1}

Where dt = 1 sec

 F = 300 \times 10^{-30} \times 10

F = 3 N

Above value of force is due to one ball, but here given in question there are two ball,

F = 3 \times 2

F = 6 N

Therefore, the average force exerted on the window due to two snowballs is 6 N

5 0
4 years ago
A box with weight of magnitude F_G = 2.00 N is lowered by a rope down a smooth plane that is inclined at an angle φ = 30.0 degre
nexus9112 [7]

Answer:

1.8 J

Explanation:

I had this exact question today and found someone who had solved it before, this was their response to the work done by gravity. They used the name "physicsmom"

Vertical distance = 1.8 sin 30 = .9 m

W = 2 N * .9 m = 1.8J

Good luck! I hope this helps!

5 0
3 years ago
Examples of structure or machine parts that may fail due to bending​
Alex_Xolod [135]

Answer:

<em>Structural failure is initiated when a material is stressed beyond its strength limit, causing fracture or excessive deformations; one limit state that must be accounted for in structural design is ultimate failure strength.</em><em><u>Compressive, tensile, bending and buckling are the basic types of structural failure for construction elements. These are caused due to faults in design and construction</u></em>

7 0
3 years ago
JUST PLZ HELP!!! Why does the lightbulb in the right electrical circuit turn on but not the one on the left?
makkiz [27]
Because,

In left image pin is not touch to the wire.

In right image pin is touch to the wire.

Hope it helps you.....

Plz...Plz...Plz...Plz…Plz…

Mark be Brainliest.....

Please.....

And..

Please thanks me.....

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8 0
3 years ago
Read 2 more answers
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