Explain why scientists replace an old scientific model with a new model.
Include an example from Physics in your answer.
₊˚ ଘ Answer:A scientific model is created to understand the concepts and explain the reason behind unexplained observations.
But the scientific models cannot explain all the unexplained observations.
When another scientific model which could explain some more observations than the previous model.
This new model replaces the old one.
One such example in physics is geocentric and heliocentric models.
The geocentric model was based on the principle that all celestial bodies revolve around the earth as its center.
But this model failed to explain some planets move backward instead of forward.
The heliocentric model was based on the principle that all planets revolve around the sun as its center including earth.
This model was able to resolve the backward and forward motion dilemma.
That is why heliocentric replaced the geocentric model.
[tex]\boxed{\huge \text{Hope this helps! :)}}[/tex]
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The model was used by scientists to predict the results of their investigations. The data frequently did not support their forecasts. This required a modification to the model.
The contemporary atomic model emerged as a result of numerous scientists building on one another's research.
What is scientific modeling?Creating a physical, mental, or mathematical model of a genuine occurrence that is challenging to see firsthand is known as scientific modeling.
In a range of scientific disciplines, from chemistry and science to ecology and also the Earth sciences, scientific models are employed to explain and forecast the behavior of real things or systems.
Though modeling is an essential part of contemporary science, scientific models are, at best, approximations rather than perfect representations of the systems and things they represent. As a result, scientists are always trying to enhance and improve models.
Scientific modeling has a variety of goals. Some models, which are frequently developed from experimental data, are being used mainly to visualize an object or system, such the three-dimensional dbl model of DNA.
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Determine the change in velocity of a car that starts at rest and has a final velocity of
20 m/s north.
answer:
20-0
=20
Explanation:
from rest initial velocity is zero.
final velocity is 20
hence change in velocity is;
20-0
=20
A 2.60 kg block is in equilibrium on an incline
of 24.3◦
.
The acceleration of gravity is 9.81 m/s
2
.
What is Fn of the incline on the block?
Answer in units of N.
Answer:
W = m g = 2.60 * 9.81 = 25.5 N weight of block
Fn = W cos theta = 25.5 N * cos 24.3 = 23.2 N normal force of plane
How long did it take for the dinosaurs to die after the asteroid?.
Answer:
it's estimated to within a couple of thousands of years.
Explanation:
For a long time it was thought that the dinosaurs died out 65 million years ago. But Paul explains, 'The dating of those layers of clay around the world is very accurate.
A swimmer jumps from a diving board 7 m above the level of water with an initial horizontal velocity of 5 m/s. The total time taken to reach the water is:
Answer:
here's the answer to your question hope it helps you
Explanation:
time=distance/speed
=7m/5ms
=1.4s
How is electricity generated and transmitted to provide electricity to homes.
Answer:
Electricity generated at the power plant reaches our homes through multiple substations, transmission and distribution lines, and transformers. Newly generated electricity is transmitted at extremely high voltages ranging from 275,000 to 500,000 volts in order to reduce transmission losses.What is the key difference between photoheterotrophs and photoautotrophs?.
Explanation:
What is the key difference between photoheterotrophs and photoautotrophs? Photoheterotrophs use organic compounds as their carbon source; photoautotrophs use carbon dioxide as their carbon source.
SOLVE IT NOWPLS!
its AP Q
Answer:
B. the maximum velocity of the mass
Explanation:
The maximum velocity occurs at the equilibrium position (x=0) when the mass is moving toward x=+A .
A motor pushes a car with a force of 35 N for a distance of 350 m in 6 s.
a. How much work has the motor accomplished?
Answer:
2041.66666667
Explanation:
35 N → 350 METERS for 6 seconds
force distance
350 M / 6s = 58.3
58.3 x 35 N = 2041.66666667 work
What is the time period of a 40 Hz wave?
Answer:
0.025 secs
Explanation:
Answer:
The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.
Explanation:
~Cornasha_Weeb
The diameter of earth is largest when measured around the.
Answer:
equator
Explanation:
The diameter of earth is largest when measured around the equator, due to the equatorial bulge.
The equatorial bulge is a phenomenon caused by the Earth's diameter being wider in the Equator.
A straight line with its endpoints located on the edge of the circle and its center is used to calculate the diameter of a circle. Latitudes like the equator and the Arctic Circle have diameters that can be calculated by scientists.
The Equator is the place on Earth where it is the broadest. At the equator, the circumference of the Earth is 40,075 km.
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The mass of the Sun is 1. 99 × 1030 kg. Jupiter is 7. 79 × 108 km away from the Sun and has a mass of 1. 90 × 1027 kg. The gravitational force between the Sun and Jupiter to three significant figures is × 1023 N.
The gravitational force is s type of force that has the ability to attract any two objects having mass. The gravitational force will be [tex]4.16\times10^{23}[/tex].
What is the gravitational force?The gravitational force is s type of force that has the ability to attract any two objects with mass. Gravitational force tries to pull two masses towards each other.
[tex]F= G\frac{m_1m_2}{r^{2} }[/tex]
Given,
mass of the sun ([tex]m_1[/tex])= [tex]1.99\times10^{23}[/tex] kg
mass of Jupiter([tex]m_2[/tex])= [tex]7.79\times10^{8}[/tex] kg
distance between the sun and Jupiter (r)= [tex]1.90\times10^{27}[/tex] m
[tex]F= G\frac{m_1m_2}{r^{2} }\\\\\\F=4.16\times10^{23}\times\frac{1.99\times10^{23}\times7.79\times10^{8}}{({1.90\times10^{27})^2} }[/tex]
[tex]F= 4.16\times(10)^{23}[/tex] Newton
Hence the gravitational force between the sun and Jupiter will be [tex]4.16\times10^{23}[/tex]
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Help!! DOWN BELOW
NO SCAMS PLEASE
What is the standard unit used to measure mass?
Answer:
g or kg
Explanation:
Mass is typically measured in grams or in kilograms (1 kg = 1000 g)
What is gravitational force
The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface.
Which type of action forces cause a reaction force?
A. Only large action forces will cause a reaction force.
B. All forces cause a reaction force.
C. Only small forces cause a reaction force.
Answer:
B
from newton's law , for every action there is an equal and opposite reaction, regardless of the size of the force
Describe Pulse wave. Short description
list 3 process that can change matter from one state to another
Answer:
evaporation, melting, freezing
Explanation:
matter is a solid, gas, or liquid
evaporation turns a liquid to gas
melting changes a solid to liquid
freezing changes a liquid to a solid
A 5 kg toy truck moves to 2 m/s east , it colllides head-on with a2kg toy car moving 5 m/s moving west . What is the total momentum of the system?
A) kgm/s 30
B) kgm/s 0
C) kgm/s -20
D) non of it
Momentum
eastward = +
westward = -
[tex]\tt P_A=5\times 2=10~kg.m/s\\\\P_B=2\times 5=-10~kg.m/s[/tex]
total momentum:
[tex]\tt P_A+P_B=10-10=0~kg.m/s[/tex]
this is for my physical science class.
Which kind of wave is a wave on the electromagnetic spectrum?
a. matter wave
b. longitudinal wave
c. mechanical wave
d. transverse wave
Answer:
It is a transverse wave. The other types of waves require a physical medium (air, water, etc.) for transmission.
Why are yet planes faster tharn. cargo planes?
Answer:
cargo planes hold cargo so there hevier
Explanation:
HELP! how did michael jordan influence future basketball players to make prodcuts?
Answer:
By encouraging them.
Explanation:
#CARRYONLEARNING
Answer:
His ability to soar to the basket and do things we'd never before seen captured the world's attention and helped make basketball more of a global sport than it had ever been. His reverse layups, slam dunks, and fadeaway shots were exciting to say the least.
Explanation:
One man lifts a 300 kg crate from the ground to the top of a loading dock 1 meter high. Another man lifts the same crate using a ramp 3 meters long, 1 meter high. What can you say about the amount of work being done?
Select one:
a. More work is done when the crate is lifted without the ramp.
b. More work is done when the ramp is used.
c. No work is done.
d. The same amount of work is done.
Answer:
D
Explanation:
Work done =force x distance in the direction of force applied
I think its d
If the jet fighter in #3 is traveling at a height of 10,000 meters, what would the potential energy be?
Answer:
5,0000
Explanation:
because if u divide the 10 by 2 possible it will be 5 so u add your zero
The potential energy of the fighter jet of mass 'm' at a height of 10000 meters will be 98000m.
What is Potential energy of a body?The energy of the body due to its position is called potential energy. If a body of mass 'm' is at height 'h' above the ground, then its potential energy with respect to earth will be -
E[P] = mgh
Given is a fighter jet traveling at a height of 10,000 meters.
The potential energy of a body at height 'h' above the ground is given by-
E[P] = mgh
where -
m is the mass of body
g is the acceleration due to gravity
Assume that the mass of jet fighter is 'm'. Then its potential energy will be -
E = mgh
E = m x 9.8 x 10000
E = 98000m
Therefore, the potential energy of the fighter jet of mass 'm' at a height of 10000 meters will be 98000m.
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what is represented using a free body diagram
Answer:
a free body diagram (FBD; also called a force diagram) is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a body in a given condition.
What do you think causes such change in wave velocity?
Example: Increasing the tension in A string causes the speed of waves on the string to increase. Since the wavelengths of the standing waves remains constant, this results in a larger frequency of oscillations in the string, which we percieve as a higher pitch when the string vibrates the air.
A complete vibration occurs with a motion away from a point, to the other side of the equilibrium position, and back again to the starting point; this complete vibration is called a
Answer:
A complete vibration is called a "period".
Starting at 0, the particle would move to +A, back to zero, to -A and back to zero to complete one cycle of a vibration
what is the temperature of a wave that has a wavelength of 5 m?
So, the temperature of a wave that has a wavelength of 5 m is [tex] \boxed{\sf{5.796 \times 10^{-4} \: K}} [/tex]
IntroductionHi ! Here, I will help you to explain about The relationship between temperature and electromagnetic wavelength uses the principle of Wien's Constant. According to Wien, if we multiply temperature with the electromagnetic wavelengths will always got the same number (constant). Therefore, The relationship is expressed in this equation :
[tex] \boxed{\sf{\bold{C = \lambda_{max} \times T}}} [/tex]
With the following condition :
C = Wien's constant ≈ [tex] \sf{2.898 \times 10^{-3} \: m.K} [/tex][tex] \sf{\lambda_{max}} [/tex] = wave at its longest point (m) T = absolute temperature (K)Problem SolvingWe know that :
C = Wien's constant ≈ [tex] \sf{2.898 \times 10^{-3} \: m.K} [/tex][tex] \sf{\lambda_{max}} [/tex] = wave at its longest point = 5 mWhat was asked :
T = absolute temperature = ... KStep by step :
[tex] \sf{C = \lambda_{max} \times T} [/tex]
[tex] \sf{2.898 \times 10^{-3} = 5 \times T} [/tex]
[tex] \sf{T = \frac{2.898 \times 10^{-3}}{5}} [/tex]
[tex] \sf{T = \frac{2.898 \times 10^{-3}}{5}} [/tex]
[tex] \sf{T = 0.5796 \times 10^{-3}} [/tex]
[tex] \boxed{\sf{T = 5.796 \times 10^{-4} \: K}} [/tex]
Conclusion :So, the temperature of a wave that has a wavelength of 5 m is [tex] \boxed{\sf{5.796 \times 10^{-4} \: K}} [/tex]
Make the following conversion.
0.0097 mg = _____ g
your answer would be 9.7
Answer:
0.0097 mg = 9.7e-9 g
Explanation:
The brightness of a light bulb is most closely related to
a ) Its resistance
b) The current through it
c) The voltage drop across it
d) The power dissipated by it.
Answer:
a ) Its resistance
Explanation:
It depends on current and resistance
) The magnitude of scalar product of two unit vectors perpendicular to each other is
This question involves the concept of the scalar product.
The magnitude of the scalar product will be "0".
SCALAR PRODUCTThe scalar product, also known as the dot product of the two vectors is given by the following formula:
[tex]A.B = |A||B|Cos\theta[/tex]
where,
A.B = Scalar product = ?|A| = Mangnitude of vector A = 1 unit|B| = Magnitude of Vector B = 1 unitθ = Angle between vectors = 90°Therefore,
[tex]A.B = (1)(1)Cos90^o = (1)(1)(0)[/tex]
A.B = 0
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