1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mr_godi [17]
3 years ago
11

When Copernicus first systematically created his Sun-centered model of the universe, it did not lead to substantially better pre

dictions of planetary positions than the Ptolemaic model. Why not
Physics
1 answer:
anzhelika [568]3 years ago
6 0

Answer:

When Copernicus first systematically created his Sun-centered model of the universe, it did not lead to substantially better predictions of planetary positions than the Ptolemaic model because the Catholic Church, which was the power at the time, stated it was false, and anybody who believed Copernicus and spread the "myth" were excommunicated or even executed. This was because a sun centered universe would mean that everything the Catholic Church had been teaching about how the Earth was the center of the universe would be false. If people believed it, the church would no longer be seen as the infallible authority, so they needed to stop it from spreading.

You might be interested in
How long does it take a bird to fly 2.5 km if a bird can fly 23km/h?
Lina20 [59]
Time = Distance / speed

Time =  2.5 km / 23 km/h

         = 0.1087 hours                      1 hour = 60 minutes
         =  0.1087 * 60 minutes
         =  6.522 minutes.
6 0
4 years ago
What property of an object determines how much inertia it has
Korolek [52]

Mass

I believe mass is the correct answer

5 0
4 years ago
Read 2 more answers
A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m off the ground on its path up and takes 0.312 s to go past t
marta [7]

Answer:

Explanation:

Given that

The window height is 2m

And the window is 7.5m from the ground

Then the total height of the window from the ground is 7.5+2=9.5m

It takes the ball 0.32sec travelled pass the window.

When the ball get to the window, it has an initial velocity (u') and when it gets to the top of the window it has a final velocity ( v')

Now using the equation of free fall during this window travels

S=ut-½gt² against motion.

S=2, g=9.81, t=0.32sec

Then,

S=u't-½gt²

2=u'×0.32-½×9.81×0.32²

2=0.32u'-0.5023

2+0.5032=0.32u'

Then, 0.32u'=2.5032

u'=2.5032/0.32

u'=7.82m/s

This is the initial velocity as the ball got the the window

Now, let analyse from the window bottom to the ground which is a distance of 7.5m

Using the equation of free fall again

v²=u²-2gH

In this case the final velocity (v) is the velocity when the ball reach the bottom of the window i.e u'=7.82m/s,

While u is the original initial velocity from the throw of the ball

Then,

u'²=u²-2gH

7.82²=u²-2×9.81×7.5

61.146=u²-147.15

61.146+147.15=u²

Then, u²=208.296

So, u=√208.296

u=14.43m/s

The initial velocity of the ball form the throw is 14.43m/s

6 0
3 years ago
Which of these is not measured in hertz? Select all that apply.
Wittaler [7]
A). period is time

b). amplitude can be almost anything that waves . . . length, voltage, pressure, current etc.
But not hertz.

c). frequency ... "oftenness ... reciprocal time. the only item on this list that CAN be measured in Hertz.

d). wavelength ... length units
4 0
3 years ago
Read 2 more answers
What is longitudinal wave?​
nignag [31]

Answer: The definition is a longitudinal wave is a wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave

Explanation:

7 0
3 years ago
Other questions:
  • A ball has a mass of 33.6 grams and a volume of 14.0 cubic centimeters (cc). What is its density?
    6·2 answers
  • Which statement best explains why Earth is not a perfect sphere?
    13·2 answers
  • Unpolarized light whose intensity is 1.46 W/m2 is incident on the polarizer in the drawing. (a) What is the intensity of the lig
    8·1 answer
  • A small boat is moving at a velocity of 3.35 when it is accelerated by a river current perpendicular to the initial direction of
    10·2 answers
  • Which property is characterized by the ability to bend
    5·2 answers
  • Consider a semicircular ring of radius R. Its linear mass density varies as lambda =lambda not sin theta. Locate its centre of m
    15·1 answer
  • Is is true the state of a medium helps determine the speed of sound passing through the medium
    6·1 answer
  • Help help help help help help
    15·1 answer
  • The person protected by insurance policy
    12·1 answer
  • In astronomy, distances are often expressed in light-years. One light-year is the distance traveled by light in one year. If the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!