The similarities between the two models of the solar system are :
Both models are made using the solar system ( including the stars and moon ). Both models explains the revolution of stars and moons and other planets around a central planet. Both models explain the rotation pattern of the solar system. Different models of solar systemThe solar system can be represented using two different models ( the Earth centered model and the sun centered model ) in both model the sun or the earth is kept as a central planet while other planets including the moon and stars revolve round the central planet.
Hence we can conclude that the similaritied between the models are as listed above.
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What is a conclusion?
Light goes from material having a refractive index of n1 into a material with refractive index n2. If the refracted light is bent away from the normal, what can you conclude about the indices of refraction?.
For a material having a refractive index n1 and n2, we can say that
n1>n2
What can you conclude about the indices of refraction?.The bending of light when it flows through one transparent medium to another is known as refraction.
In conclusion, the refractive index of n1 will be greater than the refractive index n2, If the refracted light is bent away from the normal.
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5. What is the integral of the function x^4 in the interval from c to d?
90 POINTS!!!!!!!!!!!!!!!
I REALLY NEED WITH THIS ONE!!!!!!!!!!
Answer:
See below ~
Explanation:
Integrating x⁴ from c to d
[tex]\int\limits^c_d {x^{4} } \, dx[/tex][tex]\int\limits^c_d {\frac{x^{4+1} }{4+1} } \, dx[/tex][tex]\frac{x^{5} }{5} + C[/tex] [Final answer]Based on the image, which is not a wavelength?
The distance that is not a wavelength in the image is C to E.
What is wavelength?Wavelength is the distance between two successive crests or two successive trough or crest to trough.
It is also the distance over which the wave's shape repeats.
Based on the image, the following are wavelengths;
A to E, this is wavelength because it is between a crest and a trough.B to F, this is wavelength because it is between two successive crest.D to H, this is wavelength because it is between two successive trough.Thus, the distance that is not a wavelength in the image is C to E.
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According to Newton's third law, two objects interacting under a force (such as gravity) both feel the same force. If the planets pull on the Sun as much as the Sun pulls on the planets, why are we able to approximate the Sun as a fixed position when studying the planetary orbits?
Explanation:
That's because the Sun's acceleration is much smaller
This is for physical science i don't understand (please help) i need an answer by 11:40
Answer: 1.4mi/hr²
Explanation:
Blank 1: We know that acceleration is the change in velocity/change in time
Using this, we know that the acceleration will be: (50-15)/25 = 1.4
Blank 2: mi/hr²
A wave is traveling at a speed of 120 m/s and its wavelength is 4 m. Calculate the wave’s frequency and period.
HELP PLS
Answer:
See below
Explanation:
speed = wavelength * freq
120 = 4 * f
f = 30 Hz
period = 1/f = 1/30 periods per sec
Two parallel plates have an area of 0.188 m^2. How much charge must you place on them to create a 37000 N/C field between the plates? (The answer is *10^-8 C. Just fill in the number, not the power.)
The charge that must be placed between the two parallel plates with the given area, to create the magnetic field is 6.156 x 10⁻⁸ C.
Electric field created between the parallel plates
The electric field created between the parallel plates is calculated as follows;
E = (Q) / (A∈₀)
Q = EA∈₀
where;
E is electric field∈₀ is permitivity of free spaceA is areaCharge between the platesQ = 37000 x 0.188 x 8.85 x 10⁻¹²
Q = 6.156 x 10⁻⁸ C
Thus, the charge that must be placed between the two parallel plates with the given area, to create the magnetic field is 6.156 x 10⁻⁸ C.
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Answer:
6.156
Explanation:
acellus
describe why the bottom of cooking pans are painted black while interior is silver color
Explanation:
The bottom part of the cooking utensil or pan is painted black. The reason is that the black surface absorbs more heat and so the contents of utensil or pan get cooked rapidly if its bottom part is painted black.
Hence, by having black bottom and shiny inner surface we can utilise the maximum heat given to the utensil.
How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40 m and a
propagation speed of 5 m/s?
v=λf
f=v/λ
f=5 m/s : 40 m
f=0.125/s = 7.5/min
Which statements describe surface waves? select three options. they arrive before s waves. they travel slower than p waves. they result in much ground motion. they are produced by p and s waves. they travel deep below earth’s surface.
What is "special" about the special theory of relativity? It deals with motion at constant velocity and accelerated motion but excludes all other effects; in particular, it excludes gravity.
Answer:
Explanation:
The reason it is called the special theory of relativity is because it's a special case of the general theory of relativity. SR deals with uniform motion, where there is no acceleration. Spacetime in special relativity is flat, with no gravity or curvature. It is a spacetime with no gravity. On the other hand, GR deals with accelerating reference frames and curved spacetime.
The direction of the magnetic force on a moving charged particle in a magnetic field is __________.
Question 6
1 pts
A wave is very similar to a ski slope. When a surfer is at the top of wave,
potential energy is at maximum.
A ball that has a mass of 0.25 kg spins in a circle at the end of a 1.6 m rope. the ball moves at a tangential speed of 12.2 m/s. what is the centripetal force acting on the ball? 1.9 n 23 n 59 n 93 n
The centripetal force acting on the ball will be 23.26 N.The direction of the centripetal force is always in the path of the center of the course.
What is centripetal force?The force needed to move a body in a curved way is understood as centripetal force. This is a force that can be sensed from both the fixed frame and the spinning body's frame of concern.
The given data in the problem is;
m is the mass of A ball = 0.25 kg
r is the radius of circle= 1.6 m rope
v is the tangential speed = 12.2 m/s
[tex]\rm F_C[/tex] is the centripetal force acting on the ball
The centripetal force is found as;
[tex]\rm F_C = \frac{mv^2}{r} \\\\ F_C = \frac{0.25 \times (12.2)^2}{1.6} \\\\ F_C=23.26\ N[/tex]
Hence the centripetal force acting on the ball will be 23.26 N.
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Answer:
(b)
Explanation:
23 N
Which non-mineral nutrients are essential in photosynthesis? (Select all that apply.) oxygen calcium hydrogen carbon
Answer:
carbón, hydrogen and oxygen
The non-mineral nutrients that are essential in photosynthesis will be oxygen and hydrogen.
What is photosynthesis ?The process through which green plants and certain other creatures manufacture nutrients from carbon dioxide and water using sunshine.
Plants need the green pigment chlorophyll to perform photosynthesis, which produces oxygen as a product.
The non-mineral nutrients that are essential in photosynthesis will be oxygen and hydrogen.
Hence oxygen and hydrogen are the correct non-mineral nutrients that are essential in photosynthesis
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What type of foods do bodyguards eat give 5 examples
Which refers to the sum of all the forces that act upon an object?.
Answer:
the net force or resultant force
why isn't the tangential velocity traveling along the circumference of the circle
Answer:As an equation, the tangential velocity is the distance, 2π r, divided by the time, T. Thus, A point on the circle moves a distance 2π r in a time T. We can extend our equation by looking at a few ideas. These concepts include the angular speed, ω, and the frequency, f. The angular speed, ω, is a speed of rotation.
Explanation:
i know
An ice cube has a temperature of -15. 0°C
The total thermal energy needed to raise the temperature of this ice cube to 0. 0°C
and completely melt the ice cube is 5848 J
specific heat capacity of ice = 2100 J/kg ^*C
specific latent heat of fusion of ice = 334 000 J/kg
Calculate the mass of the ice cube.
(5 marks)
The mass of the ice cube that will be completely melted by the given amout of heat energy is 16 g.
Mass of the ice
The mass of the ice cube that will be completely melted by the given amout of heat energy is calculated as follows;
Q = mcΔθ + mL
5848 = m(2100) x [(0 - (-15)] + 334000m
5848 = 31500m + 334000m
5848 = 365,500 m
m = 5848/365,500
m = 0.016 kg
m = 16 g
Thus, the mass of the ice cube that will be completely melted by the given amout of heat energy is 16 g.
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Which statement best describes the direction of heat flow by conduction between two samples of the same material? heat flows from faster molecules to slower molecules when they are near. Heat flows from faster molecules to slower molecules when they collide. Heat flows from slower molecules to faster molecules when they are near. Heat flows from slower molecules to faster molecules when they collide.
Answer:
B
Explanation:
The statement that best describes the direction of heat flow by conduction between two samples of the same material is that heat flows from faster molecules to slower molecules when they collide.
How does heat flow by conduction?Heat refers to the difference in temperature between two substances. Heat flows in the direction of an hot substance to cold.
However, in a hot substance, the particles move faster than that of a cold substance.
Therefore, the statement that best describes the direction of heat flow by conduction between two samples of the same material is that heat flows from faster molecules to slower molecules when they collide.
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5. What is the amount of work done when JoAnne throws a baseball 6. 5 meters at a force of 40 newtons?
Answer:
W = 260 J
Explanation:
Work is defined by
W = F. d
Bold type indicates vectors,
W = F d cos θ
where tea is the angle between the force and the displacement, in this case the force is parallel to the displacement so the angle is zero and the
cos 0=1
let's calculate
W = 40 6.5
W = 260 J
True of false. Red stars are hotter than blue stars.
Answer:
False
Explanation:
Blue stars are hotter than red stars
think of a working flame on a bunsen burner
What is the illuminance on an object that is 1. 50 m away from a light source with a luminous flux of 665 lumens?
A) 1. 87 lx
B) 3. 53 lx
C) 23. 5 lx
D) 425 lx
The illuminance on an object that is 1. 50 m away from a light source with a luminous flux of 665 lumens will be 23. 5 lx.
What is a light source?Electromagnetic radiation is emitted by a light source. The sun and microwaves are examples of daily light sources.
The given data in the problem is;
r is the distance from the light source=1. 50 m
P is the luminous flux = 665 lumens
E is the illuminance
The illuminance is found as;
[tex]\rm E = \frac{P}{4\pi r^2} \\\\ \rm E = \frac{665}{4 \times 3.14 \times (1.5)^2} \\\\ \rm E =23.5\ lx[/tex]
The illuminance on an object that is 1. 50 m away from a light source with a luminous flux of 665 lumens will be 23. 5 lx.
Hence option C is correct.
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What would be the answer to question 3?(about Right ascension and declination)
Answer:
i thinks its last one or 2nd one
A man has a 90 kg mass on Earth. If the moon has 1/6 of the gravity as the earth,
what is the mass of a 90 kg man on the moon?
A 15,000 kg railroad freight car travels on a level track at a speed of 2.5 m/s. It collides and couples with a 25,000 kg second car, initially at rest and with brakes released. What is the speed of the two cars coupled together after collision
Answer: 0.94 m/s
Explanation:
Mass of the first car:
m1=15,000 kg
Speed of the first car:
v1=2.5 m/s
Mass of the second car:
m2=25,000 kg
[tex]$$Apply the conservation of momentum.$$m_{1} v_{1}+m_{2} v_{2}=\left(m_{1}+m_{2}\right) v_{f}$$Substitute the values.$$\begin{aligned}(15000 \times 2.5)+(25000 \times 0) &=(15000+25000) v_{f} \\37500 &=40000 v_{f} \\v_{f} &=\frac{37500}{40000} \\&=0.9375 \\&=0.94 \mathrm{~m} / \mathrm{s}\end{aligned}$$[/tex]
Therefore, the speed of the two cars coupled together after the collision is 0.94 m/s
carbon-14 is used to date a palm fossil that originally contained 0.24 grams of carbon-14. The half life is 5700 years. If the fossil is found to be 17,000 years old, how much Carbon-14 does it contain now?
Answer:
Exactly 0.03042 carbon-14 is remaining.
Roughly 0.03 Carbon-14 is remaining. (When/If Multiple Choice)
Explanation:
Not a physics question, this is chemistry, but I'll answer.
First, divide 17,000/5700 to find the t, or time.
t = 2.98245614 or 2.98.
If it originally contained .24 grams, and a half life means x/2,
you would use the formula x/2^p, with p being the number of half lives
(these variables are made up, you can use any you would like)
In 17,000 years, the palm fossil experienced 2.98 half lives.
Thus meaning, using our equation, we would find (.24)/2^2.98
This equals 0.030418784 carbon-14 remaining to be exact.
(For Multiple Choice, it may be required to round to For Multiple Choice, it may be required to round to 3, so .24/2/2/2 or .24/2=.12 then .06 then it equals : .03 Carbon-14)
2. While observing the sky, Zion can see that it is very cloudy and looks like it may storm
soon. The wind has become stronger, and the temperature feels cooler than it did in the
morning. Is this an example of a high or a low pressure system? Explain.
Answer:
It is a low pressure system.
Explanation:
The wind is blown into these low pressure areas due to it being thin. The air then rises causing condensation.
how does the current through a wire change if the wires resistance is increased? Explain why this is so?
The current through a wire change if the wires resistance is increased in the following ways;
The length of the wires will affect the amount of resistance. The longer the wire, the more resistance.The cross-sectional area of the wires also affects the amount of resistance. Wider wires have a greater cross-sectional area which affects the resistance.The material of the wire also affect the resistance to charge flow. The measurement of the conducting ability of a material is called resistivity.Relationship between Resistance and cross section of wireThe relationship between resistance and the area of the cross section of a wire is inversely proportional. Resistance also depends on the material of the conductor.
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