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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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When a ball is launched from the ground at a 45° angle to the horizontal, it falls back to the ground 50 m from the launch point
Inessa [10]

Answer:

Explanation:

Given

angle through which ball is launched=45^{\circ}

Range of ball=50 m

Range of projectile is =\frac{u^2sin2\theta }{g}

50=\frac{u^2sin90}{9.8}

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If ball is thrown straight upward

v^2-u^2=2as

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s=25 m

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2 years ago
Can anyone help with this?
sleet_krkn [62]

Answer:

A. The volume of the object

Explanation:

First of all, it can only PROBABLY be A or D

But why is it only A?

  • Mass = The amount of matter in an object (nothing related here)
  • Volume = How much space is the object taking (super related here)

It's VOLUME here and not MASS here because:

  • It it would be Mass, then the object size could be anything, but the liquid wouldn't move as much higher.
  • But because it is Volume, it is taking space, which makes the liquid move
  • If the Mass would be the answer, then it would be totally not related, because mass isn't related over here, it matters about size.

<h2>Hence, A. The volume of the object </h2>

is your answer!!!!

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The gravitation force is quartered when two objects' masses are halved without changing their distance.

Gravitational law states that the force of attraction and repulsion between two objects is directly proportional to the product of their masses and inversely proportional to the square of their distance apart.

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Recall

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Therefore

F=F/4

Learn more about gravitational force here:

brainly.com/question/25408095

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