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igor_vitrenko [27]
3 years ago
14

Besides, the discovery that moons orbit Jupiter, what other discovery made by Galileo Galilei, with an early telescope, proved t

hat the Earth is not at the center of the Universe?

Physics
1 answer:
Thepotemich [5.8K]3 years ago
5 0

Answer:

He made great advancements in developing a logical way to know more about the universe and celestial entities inside the space. And this theory is termed to be heliocentric in nature.

Explanation:

  • In early times most of the people believed that our planet Earth is the center of the universe or the solar system and rest of the celestial entities move around it in a given path, so, it confused the well known scientist named as Galileo Galilei. As, he observed the different dark patches or shadow like textures on the face of the Sun.
  • While, it is more obvious to known that any object having multiple small shadows means that it is present inside such a region that all of the celestial entities move or orbit around it in a given way.So, he concluded that planet Earth itself move around the red Giant in a given way rather then being the center of the universe.

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A pendulum is swinging back and forth with a period of 2.0 seconds here on Earth. This pendulum is then brought to the Moon, whe
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Answer: The period of the pendulum will be bigger than in Earth.

Explanation:

The period of a pendulum is:

T = 2*pi*√(L/g)

where pi = 3.14

L is the length of the pendulum and g is the gravitational acceleration.

you can see that g is in the denominator, so if g is smaller, then the end number woll be bigger (because in the moon we are dividing by a smaller number)

This means that in the moon the period of the pendulum is bigger than in the Earth.

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Explain why you can multiply both the numerator and denominator by the same number
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3 years ago
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Heather and Jerry are standing on a bridge 60 m above a river Heather throws a rock straight down with a speed of 14 m/s. Jerry,
melisa1 [442]

Answer:

Time elapsed   = 2.856

SECOND ROCK HAS FASTER SPEED

Explanation:

This can be achieved in 2 ways, and it is clear from the careful study that the travel time is attributed to the time required to cross the path above the bridge by the 2nd stone  i.e.

14 = 9.8 * t

t = 1.428 sec and

time between 2 splash  = 2 * 1.428 = 2. 857 sec

2nd way

let time for 1st spalsh be t and

second splash be t1.

from equation of motion

so 60 = 14t + 0.5 * 9.8 * t * t

4.9 t^2 + 14t -60 = 0

On solving, we get t = 2.351 sec

for t_1, we have some extra time, which can be divided into t2 and t3.

14 = 9.8 * t2

t2 = 1.428 sec  

total time taken by 2 is

T = 1.428 + 1.428 + 2.351

so we get t_1 = 5.207 sec

time elapsed is  = T - t

                           = 5.207 - 2.351

Time elapsed   = 2.856

SECOND ROCK HAS FASTER SPEED

4 0
3 years ago
A 2.37-kg rock is released from rest at a height of 22.2 m. ignore air resistance and determine (a) the kinetic energy at 22.2 m
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3 years ago
Which of the following is a consequence of the special theory of relativity?
aleksandr82 [10.1K]

Answer:

D.

Explanation:

Specifically, Special Relativity showed us that space and time are not independent of one another but can be mixed into each other and therefore must be considered as the same object, which we shall denote as space-time. The consequences of space/time mixing are: time dilation. and length contraction.

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2 years ago
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