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Gelneren [198K]
3 years ago
9

8. An airplane of mass 8500 kg dives has an altitude of 15,000 m. It then dives steeply to an

Physics
1 answer:
Ivan3 years ago
8 0

Answer:

333.5 MJ

Explanation:

ΔV = m·g·Δh

     = 8500 · 9.81 · (15000-11000)

     = 8500 · 9.81 · 4000

     = 333 540 000

     ≈ 333.5 ·10⁶J = 333.5 MJ

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A cube of each of length 3m is subjected to a normal force of 36N. What will be the stress on cube a)12. Ab)2 c)18. d)4
muminat
The correct answer is 12.
4 0
3 years ago
Juan and Kuri are on a carousel. Juan is closer to the center of the carousel than Kuri. Which statement describes their tangent
Licemer1 [7]

Answer:

Juan and Kuri complete one revolution in the same time, but Juan travels a shorter distance and has a lower speed.

Explanation:

Since Juan is closer to the center and Kuri is away from the center so we can say that Juan will move smaller distance in one complete revolution

As we know that the distance moved in one revolution is given as

d = 2\pi r

also the time period of revolution for both will remain same as they move with the time period of carousel

Now we can say that the speed is given as

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so Juan will have less tangential speed. so correct answer will be

Juan and Kuri complete one revolution in the same time, but Juan travels a shorter distance and has a lower speed.

6 0
3 years ago
Read 2 more answers
Which element is usually listed first in the formula of a binary
Elina [12.6K]

Answer: the element with the lowest electronegativity

Explanation:

3 0
3 years ago
What is the net force on this object f air = 400n (up) fgrav=600n (down)
n200080 [17]
Fnet=F1+F2 or Fnet=F1-F2
So 400n up - 600n down
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5 0
3 years ago
Read 2 more answers
The density of sodium is 968 g/cm3. Suppose you need 250 gm of sodium for an experiment. Which volume of sodium do you need?
Tatiana [17]
We know, d = m/v
d = 968 g/cm3
m = 250 gm

Substitute their values, 
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v = 250 / 968
v = 0.26 cm3

In short, Your Answer would be Option B

Hope this helps!
8 0
3 years ago
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