Answer:
1) which planet's orbit was Kepler first studying when he began to developed his laws of orbital motion? Answer: Mars
2) which is the best description of Earth's orbit? Answer: almost circular
3) which orbital shape did most scientists in the early 1600s think the planets of our solar system have? Answer: circular
4) which of these describes Kepler's third law of orbital motion? Answer T^2 OX a^3
5) which statement describes Kepler's third law of orbital motion? Answer The square of orbital period is proportional to the cube of the semi-major axis.
Explanation:
I just took the connexus quick check and got a 100%
T2 ∝ a3 is the relation that describes Kepler’s third law of orbital motion, therefore the correct answer is option C.
What are Kepler's laws of planetary motion?There are three laws of Kepler as follows,
The orbit of the planet is elliptical and the sun is present at one of the two foci of the elliptical route followed by the rotating planet.
A line segment linking a planet and the Sun covers equal regions throughout equal intervals of the time period.
The semi-major axis length of an elliptical planet's orbit is equal to the square of the planet's orbital period.
T2 ∝ a3 is the relation that describes Kepler’s third law of orbital motion,
Thus, the correct answer is option C.
To learn more about Kepler's laws of planetary motion, refer to the link;
brainly.com/question/1455457
#SPJ2
Which kind of precipitation is formed, in part, by wind?
A. Rain
B. Snow
C. Sleet
D. Hail
Answer:
Rain
Explanation:
Why might a scientist use a physical model of a plant cell instead of studying
a cell directly?
A. A model can be used for things that are too hot to handle easily.
B. A model can be used for things that are too small to see clearly.
C. A model can be used for things that are too large to study directly.
D. A model can be used for things that are too simple to study
directly
B. A model can be used for things that are too small to see clearly
Which statement is true?
A. Speed is a scalar quantity and velocity is a vector quantity.
B. Speed and velocity are both scalar quantities.
C. Speed and velocity are both vector quantities.
D. Speed is a vector quantity and velocity is a scalar quantity.
E. Speed and velocity are neither a scalar quantity nor a vector quantity.
Help! Especially from any PLATO users!
A ) Speed is a scalar quantity and velocity is a vector quantity.
someone pls helpp meeee
Answer:
the first answer is correct
Help.. mee..
;-;
Dont answer if you dont know I dont want to fail this
Answer:
It would be B because the warm air heats up and then burns the marshmallow. And the heat and the marshmallow were touching each other
Explanation:
Answer:
its B because both objects are touching, every other option the heat moves through the air
What is motivation in your own world
Answer:
Motivation is the process that initiates, guides, and maintains goal-oriented behaviors.
WHY IS NO ONE HELPING I'M BOUTTA GET REPORTED FR!!!!!!!!!!!!!!
what would happen to the weather if half of the human race just died off? would it get colder? why?
Why is 250 million years called a cosmic year?
That’s the amount of time it takes the Milky Way to revolve around the Universe core.
That’s the amount of time it takes the Milky Way to rotate on its axis.
That’s the amount of time it takes the solar system to rotate on its axis.
That’s the amount of time it takes the solar system to revolve around the Milky way core.
Answer:
250 million years is called a cosmic year because - D) That’s the amount of time it takes the solar system to revolve around the Milky way core.
Explanation:
The planets in our solar system orbit around the sun. ... Even at this blazing speed, it takes the sun approximately 225-250 million years to complete one journey around the galaxy's center. This amount of time – the time it takes us to orbit the center of the galaxy – is sometimes called a cosmic year.
The cosmic year is of 250 million years because that is the amount of time it takes in the solar system to revolve around the milky way core. Hence, option D is correct.
What is the Milky way?A large spiral galaxy known as the Milky Way contains the Sun and several hundred billion other stars. It gets its name from the Milky Way, an amorphous belt of stars and gas clouds that can be viewed in the sky from Earth. Astronomers do not fully comprehend the nature of the Milky Way Galaxy, which is commonly referred to simply as the Galaxy, despite the fact that Earth is located within it.
Much of the Galaxy is hidden by a thick layer of interstellar dust that prevents optical telescopes from seeing it, and astronomers can only determine its large-scale structure with the help of radio and infrared telescopes that can detect the types of radiation that can pass through the obscuring matter.
Our solar system's planets revolve around the sun. Even at this incredible speed, one orbit of the galaxy's center takes the sun about 225–250 million years to complete. A cosmic year is another name for the period of time it takes for us to orbit the galactic center.
To get more information about the milky way :
https://brainly.com/question/2806083
#SPJ5
A block m1 rests on a surface. A second block m2 sits on top of the first block. A horizontal force F applied to the bottom block pulls both blocks at constant velocity. Here m1 = m2 = m.
(a)
What is the normal force exerted by the surface on the bottom block? (Use the following as necessary: m and g as necessary.)
Answer:
N = 2mg
Explanation:
Assuming the surface is horizontal
The surface must provide enough normal force to prevent the masses from accelerating in the vertical direction.
(a) The normal force exerted by the surface on the bottom block is N1 = 2mg.
Given that,
A block m1 rests on a surface. A second block m2 sits on top of the first block. A horizontal force F applied to the bottom block pulls both blocks at constant velocity. Here m1 = m2 = m.Based on the above information, we can say that the N1 is 2mg.
Learn more: brainly.com/question/17429689
Question 5 (1 point)
You push a 34.2 kg box with a force to 97.7 N. At what rate will the box accelerate?
Your Answer:
Answer:
2.86 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{force}{mass} \\ [/tex]
From the question
force = 97.7 N
mass = 34.2 kg
We have
[tex]a = \frac{97.7}{34.2} = 2.856725 \\ [/tex]
We have the final answer as
2.86 m/s²Hope this helps you
A student practicing for a cross country meet runs 250 m in 30 s. What is the average speed
Answer:8.3m/sec 30 sec,
Explanation:
A student practicing for a track meet, ran 250 m in 30 sec. a. What was her average speed? 250 m = 8.3 m/sec 30 sec.
the density of free electron in a copper conductor is 8.5×10^28m-3. how long does an electron take to dift from one end of a wire 3.0m long to it's other end?
Answer:
missing information what is your cross-section and current in Amperes
Ti3N + MgO → Mg3N2 +Ti2O balance chemical equation
We have that the balanced chemical equation is mathematically given as.
2Ti_3N + 3MgO → Mg_3N_2 +3Ti_2O
From the question we are told
Ti3N + MgO → Mg3N2 +Ti2O balance chemical equation.
Generally the way to balance an equation is by making all elements present on the Left hand side(LHS) same with the right hand side RHS.
Therefore
The equation is mathematically given as.
Ti_3N + MgO → Mg_3N_2 +Ti_2OWe consider the Left hand side(LHS) first.
2Ti_3N + 3MgO → Mg_3N_2 +Ti_2OThen we consider the right hand side RHS.
2Ti_3N + 3MgO → Mg_3N_2 +3Ti_2OTherefore the balanced chemical equation is mathematically given as.
2Ti_3N + 3MgO → Mg_3N_2 +3Ti_2OFor more information on this visit
https://brainly.com/question/17756498
The neurocognitive model of dreaming argues that dreams:
A. reflect the waking concerns and preoccupations of the dreamer.
B. represent the fulfillment of repressed wishes and urges.
C. have no meaning whatsoever and simply reflect random neural firings in the brainstem.
D. contain images that disguise the dream's true psychological meaning.
Dreams Often Feature Intense Emotions
Dreams Often Feature Intense EmotionsIn some instances, these emotions can become so intense that they interrupt the dream or cause the dreamer to wake abruptly. The three most common emotions that become intensified by dreams are anxiety, fear, and surprise.
dream
dreamFirst, let examined the definition of dream according to Sigmund Freud “dream is the disguised fulfilment of a repressed wish. Dreams are constructed like a neurotic symptom: they are compromises between the demands of a repressed impulse and the resistance of a censoring force in the ego” (Freud, 28).
Bright light therapy is used to gradually shift sleeping patterns to what we consider normal. For treatment, the timing of light exposure is critical. For DSPS, the light must be delivered to the retina as soon after spontaneous awakening as possible to achieve the desired effect.
Learn more about psychological here:
https://brainly.com/question/12011520
#SPJ2
Two skaters face one another and stand motionless, then push against each other on the ice. If one's mass is 55 kg and he moves to the left after the push at a velocity of 4.3 m/s, how fast was the other skater traveling after the push if her mass was 48 kg.
4.9 m/s to the right
Explanation:
We are going to use the conservation law of linear momentum to find her velocity. Initially, they are motionless so their initial total momentum is zero. Let's assume that anything moving to the left has a negative velocity and anything moving to the right has a positive velocity. We can write the conservation law of momentum as
[tex]0 = M_mv_m + M_wv_w[/tex]
where
[tex]M_m[/tex] = mass of the man = 55 kg
[tex]v_m[/tex] = velocity of the man = -4.3 m/s
[tex]M_m[/tex] = mass of the woman = 48 kg
[tex]v_w[/tex] = velocity of the woman
[tex]\Rightarrow 0 = (55\:\text{kg})(-4.3\:\text{m/s}) + (48\:\text{kg})v_w[/tex]
Solving for [tex]v_w,[/tex]
[tex]v_w = \left(\dfrac{55\:\text{kg}}{48\:\text{kg}}\right)(4.3\:\text{m/s}) = 4.9\:\text{m/s}[/tex]
going to the right.
what is the best name for binary compound of nitrogen and oxygen
A . Nitrogen oxide
B. Nitrogen oxnie
C.oxide nitrogen
D.Nitride oxygen
I NEED THIS ASAP PLEASE
Answer:
wash or dry cleanmeasuring tapeupper arm girthtapeheightmeasuring tapebistlinewaistlineabdomenhip or seatExplanation:
please mark brainiest
Please help meeeee!!!
Answer:
1. Test tube
2. tongs
3.
4. FUNNEL
5.
6.
7. Flask
8. Beaker
9. Bunsen burner
10. Erlenmeyer Flask
11. Molar and pestle
12. Wire gauze
13. Graduated cylinder
14. Test tube rack
15. Pipet
16. Filo
Explanation:
a ray of light is incident in water at angle of 30 on water air plane mirror surface .find the angle of refraction in air.
Angle of incidence=angle of refraction
[tex]\\ \sf\longmapsto sin\:i=sin\:r[/tex]
sin i=30°[tex]\\ \sf\longmapsto sin\:r=30°[/tex]
I WILL GIVE YOU THE BRAINLEST ANSWER AND 100 POINTS
Choose two of the following technological devices. For each one, complete the required research and write about how the devices use wave behavior to transmit or capture information.
Microwave
Radio
Remote control
WiFi
X-ray
Gamma radiation
Device 1
Describe the device and its function.
What form of electromagnetic radiation does it use?
Describe the frequency and wavelength range of this type of electromagnetic wave.
Using the information above and details from your research, write a paragraph of five sentences or more explaining how the device uses the behavior and characteristics of the electromagnetic wave to function. Remember the writing tips from the lesson, and use facts and details to explain your topic sentence.
You must include citations for all reliable sources used. Include citations from three or more reliable sources.
Device 2
Describe the device and its function.
What form of electromagnetic radiation does it use?
Describe the frequency and wavelength range of this type of electromagnetic wave.
Using the information above and details from your research, write a paragraph of five sentences or more explaining how the device uses the behavior and characteristics of the electromagnetic wave to function. Remember the writing tips from the lesson, and use facts and details to explain your topic sentence.
You must include citations for all reliable sources used. Include citations from three or more reliable sources.
The way a microwave uses wave behavior to transmit information is for point-point communication for small-sized antennas.
The form of electromagnetic radiation it uses is electrical and mechanical energy.
What is a Microwave?This refers to the form of electromagnetic radiation that has a range of 1m-1mm.
The way a radio uses wave behavior to transmit information is for wireless transmission of sound, typically for maritime and aircraft travel.
The form of electromagnetic radiation it uses is a radio wave.r
The range of the radio is 100–10 km at 3–30 kHz
Read more about electromagnetic radiation here:
https://brainly.com/question/25847009
#SPJ1
Answer:
.
Explanation:
A 20kg object is at rest, and then speeds up to 16m/s. How much work is done on this system.
Answer:
2560 J
that the answer i came up with
help me plzzz
The punter on a football team tries to kick a football so that it stays in the air for a long "hang
time". If the ball is kicked with an initial velocity of 30 m/s at an angle of 60 degrees above the
ground.
a. Calculate the "hang time".
b. How far does the ball go in the horizontal direction?
c. What is the maximum altitude (height) the ball reaches?
first resolve the initial velocity of the ball into two components
1)one parallel to ground(u)
2)another perpendicular to ground(v)
call the initial velocity=p=25.4 m/s at 58.0° deg to ground
so the horizontal component of velocity=25.4cos58=13.46 m/s
so the vertical component of velocity=25.4sin58=21.54 m/s
we have nothing to do with the horizontal component of velocity as it plays no part in the hang time
only vertical component of velocity determines the hang time
hang time=2*(vertical component of velocity)/(acceleration due to gravity)
==>hang time=2*21.54/9.8=4.39 s
==>hang time =4.39 s
If I'm wrong please let me know, thank you.
Which statement describes how nuclear power generation systems work?
O A.
The heat for the electricity generation process comes from nuclear fusion.
ов.
Electricity is generated directly when two atoms split into smaller ones.
O C.
The heat for the electricity generation process comes from nuclear fission.
OD.
Electricity is generated directly when two atoms join together.
Answer:
c- heat for electricity generation process comes from nuclear fission
Explanation:
nuclear fission is splitting of atoms to release energy held at nucleus of atoms
Which statement about magnetic force is FALSE?
drop down menu to complete the statement.
___ are made of amino
____ are used by all organisms to store the transmit genetic information
____ are used by organisms for tissue growth and repair
options are 1. proteins 2. nucleic acids
Answer:
The answer to the first question is protein
Helllppppp pleaseeeeee!!!
How to find force if mass time and distance is given?
Answer:
For example, speed is a length divided by time. Force is mass times acceleration, and is therefore a mass times a distance divided by the square of a time. We therefore say that [Force] = MLT−2.
40. What is the acceleration of a 10 kg object if a force of 3 N is applied to it?
Please help on these two thanks
Explanation:
Number 29
= 10 N (from rocket) + 10 N (from wheels) - 7 N (from parachute 'cause force in other direction)
= 20 N - 7 N
= 13 N ✔
Number 30
= 100 N - 85 N
= 15 N to the left ✔
A heavy train of mass 200 tonnes has a maximum speed of 20m/s up a hill inclined at 1.15⁰ to the horizontal when the engine is working at 800 kwatts. What is the resistance to the motion of the train?
Answer:
https://www.brainlyanswer.com
Explanation:
click the link the answer is in the link:)
Answer:
train to busan
shadow train
the horror train
train game