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4 years ago

Why did Copernicus want to develop a completely new system for predicting planetary positions? Provide two reasons.

Physics

1 answer:

LiRa [457]4 years ago

7 0

Answer:

1) improve the quality of data

2) new system is more simple and elegant

Explanation:

the reason for being selected new system of determining planetary positions are

1) he want to improve the quality of data for having new planetary positioned value.

b) he believed that new system is more simple and elegant for determining planetary positions by both skilled and unskilled user i.e. astronomers and general public

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Which element would most likely form an lonic bond with nitrogen (N)? 0 Р c к

BARSIC [14]

Answer:

i would say k

if not then 0

5 0

4 years ago

a 0.0818 kg salt shaker on a rotating table feels an inward frictional force of 0.108 N when it is moving 0.333m/s. what is the

serg [7]

Answer:

The required radius of its motion is $0.084m$ .

Explanation:

The formula for calculating the required radius of its motion is given by

$F = (mv^2)/r$

Where m= mass 

V= moving velocity 

F=frictional force 

r = radius of its motion 

Then the required radius of its motion is given by

$r =(mv^2)/F$

Given that

mas =0.0818 kg 

Frictional force= 0.108 N 

Moving with Velocity of = 0.333 m/s 

radius of its motion = $\frac{[0.0818 kg \times (0.333 m/s)^2]}{0.108 N}$ 

Hence the required radius of its motion is r = $8.4 cm=0.084m$ 

6 0

3 years ago

Rank in order the following according to their speeds, from fastest to slowest: (i) 425-nm-wavelength light through a pane of gl

kotegsom [21]

Answer:

v > ii > iii > i > iv

Explanation:

The speed of light does not depend on the wavelength of light rather the medium through which it passes through.

v) The speed of light in a vacuum is maximum = 300000 km/s

ii) The speed of light in air = 2999910.026 km/s

iii) The speed of light in water = 2255639.097 km/s

i) The speed of light in glass = 1973684.210 km/s

iv) The speed of light in diamonds = 1239669.421 km/s

Hence the ranking will be

v > ii > iii > i > iv

5 0

3 years ago

How much force is required to accelerate a 12 kg mass at 5 m/s 2

Savatey [412]

Answer:

60 N

Explanation:

This is just Newton's Second Law

F = m*a

F = ?

m = 12 kg

a = 5 m/^2

F = 5*12 = 60 Newtons

4 0

2 years ago

Can someone please help me and write the answers? i need this and it’s really important!!

eduard

-- Kinetic energy is the energy of mass in motion. The amount is determined by the mass of whatever is moving, and its speed.

-- Potential energy is the energy that's stored up in some form, not being used yet but ready to be used when you want it.

For example, one form of it is chemical potential energy, like in a battery, or a match. You get the energy out of a battery when you connect it to a motor or a light. You get the energy out of as match when you make the tip hot and it flares up.

This question is asking about gravitational potential energy. An object has stored energy just by being up high, like a bowling ball on a shelf. You get the energy out of it just by dropping it ... possibly enough to crack the floor !

The amount of this kind of potential energy is determined by the mass of the object, and how high up it is.

-- Getting the answers from other people doesn't help you a bit, until you understand them and can answer the question on your own.

5 0

4 years ago