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jekas [21]
3 years ago
11

Process of Science Task: Earth-Centered vs. Sun-Centered Models.

Physics
1 answer:
Gnoma [55]3 years ago
6 0

Answer:

There are a number of models as explained below.

Explanation:

  • Depending on the position of the earth in the orbit, stars will be in different positions relative to the distant stars.

This model can be explained by the parallax effect. An object is viewed differently by the left and the right eye.

Reference can be made to the geocentric and heliocentric arguments. The first view argues that heavens are composed of 55 concentric spheres.

On the other hand, the heliocentric system, proposed by Copernicus, suggested that the Sun, not the earth, was the center of the solar system.  

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A soccer ball kicked on a level field has an initial vertical velocity component of 15.0 mps. assuming the ball lands at the sam
telo118 [61]

Answer:

The time taken for the ball to fly up in the air and back down again is 3.058 seconds.

Explanation:

Since the ball ends up at the same vertical distance ( on the ground) as it was at the start of its motion, we can set the total displacement of the ball equal to 0.

Thus, this problem can be simply solved by the following equation of motion:

s = u*t + \frac{1}{2} (a*t^2)

Here, s = total change in distance = 0 m

u = initial speed = 15 m/s

a = acceleration due to gravity = -9.81 m/s^2

t = time (to be found)

Substituting these values in the equation we get:

0=15t+0.5(-9.81t^2)

-15t = -4.905t^2

t=15/4.905

t = 3.058 seconds

So, the time taken for the ball to fly up in the air and back down again is 3.058 seconds.

5 0
3 years ago
10. A change in
pogonyaev

Answer:

d velocity will be the one according to me

6 0
3 years ago
At a temperature of 250 K, the gas in a cylinder has a volume of 20 L. If the temperature increased to 260 K, what must the volu
masya89 [10]

Answer:b.20.8L

Explanation:

Since pressure is constant we can use the equation V1/T1 = V2/T2

(20/250)=(x/260)

5200=250x

X=20.8

3 0
4 years ago
Please answer this as soon as possible
Alinara [238K]
I think it’s the third one, if not it’s the first.
4 0
3 years ago
Thunder is heard 7.2 seconds after a bolt of lightning is observed. if the speed of sound is 349 m/s, how far away did the light
Natasha2012 [34]

Answer:

2512.8 meters

Explanation:

s=d/t

by using speed formula

5 0
2 years ago
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