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Rashid [163]
2 years ago
11

Calculate (a) how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high). **** (use

the data from above)
a 0.00 s
b 3.94 s
c 8.80 s
d 846 s
Physics
1 answer:
Shtirlitz [24]2 years ago
3 0

Answer:

c 8.80 s

Explanation:

Given parameters:

Height of Empire State Building  = 380m

Unknown:

Time taken for King Kong to fall  = ?

Solution:

To solve this problem, we use one of the kinematics equation.

The appropriate one is given below;

      H  = ut + \frac{1}{2} g t²  

H is the height

t is the time taken

g is the acceleration due to gravity

            380  = (0 x t) + ( \frac{1}{2}  x 9.8 x t²)

           380  = 4.9t²  

             t²  = 77.55

              t = 8.8s

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Which of these is not shared by Bohr's model and the modern atomic model?
Ainat [17]

"D. Both have electrons that orbit the atomic nucleus in a similar way ." is not shared by Bohr's model and the modern atomic model.

Hope this helps,

Davinia.

5 0
3 years ago
A 2kg book is held against a vertical wall. The coefficient of friction is 0.45. What is the minimum force that must be applied
Vika [28.1K]

We have that for the Question "A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal" it can be said that  the minimum force that must be applied on the <em>book is</em>

  • F=44N

From the question we are told

A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal

Generally the equation for the  Force  is mathematically given as

F=\frac{mg}{\mu}\\\\F=\frac{2*9.8}{0.45}\\\\

F=44N

Therefore

the minimum force that must be applied on the <em>book is</em>

F=44N

For more information on this visit

brainly.com/question/23379286

8 0
2 years ago
Will give brainliest! 50 points!!!
tatiyna

Answer:

C

Im not totally sure but that's what my science teacher taught me sorry if is wrong

6 0
3 years ago
A circular swimming pool has a diameter of 12 m. The circular side of the pool is 3 m high, and the depth of the water is 2.5 m.
Anestetic [448]

Answer:

Explanation:

Diameter of pool = 12 m

radius of pool, r = 6 m

Total height raised, h = 3 + 2.5 = 5.5 m

density of water, d = 1000 kg/m³

Mass of water, m = Volume of water x density

m = πr²h x d

m = 3.14 x 6 x 6 x 5.5 x 1000

m = 113040 kg

Work = m x g x h

W = 113040 x 9.8 x 5.5

W = 6092856 J

7 0
3 years ago
A box having a mass of 0.2 kg is dragged across a horizontal floor by
Lyrx [107]

you can check attachment for answer.

kind regards

7 0
3 years ago
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