Answer:
D)Our Solar System is located in the outer area of one of the spiral arms of the Milky Way galaxy.
Explanation:
Our solar system is one of millions of solar systems found in our galaxy, the Milky Way.
Hope that helps!
Have a great day! :D
The relationship between our Solar System and the Milky Way galaxy is option d. Our Solar System is located in the outer area.
Relationship between our Solar System and the Milky Way galaxy:The earth orbited the sun, so the solar system that orbited the center of the milky way.
Also, it does have solar system nearest to the 250 million for finishing the single revolution.
Hence, the option d is correct.
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Two balls, a foam ball and a golf ball, are placed into a pail of water. The golf ball sinks. Why does a foam ball float and a golf ball sink when both are placed into water?
Answer:
The golf ball has a greater mass than the foam ball
Explanation:
Kyle runs 20 m north, 20 m west and then 20 m south, what is Kyles’s total displacement?
Answer:
Displacement = 20 m
Explanation:
Given that,
Kyle runs 20 m north, 20 m west and then 20 m south.
We need to find Kyles's total displacement.
Total distance = shortest path covered by Kyles.
The net displacement of Kyle is 20 m in east direction. Hence, this is the required solution.
1
1 point
Which of the following is a true statement about light?
Light cannot be wave and a particle.
Light travels at the same speed as a really loud sound.
Light waves must have a medium in which to transfer energy
Light travels at 3.0 x 108 m/s in a vacuum.
Answer:
Light travels at 3.0 x 108 m/s in a vacuum.
Explanation:
Light travels at 3.0 x 108 m/s in a vacuum.
A person who is heavier than the standard for the person’s height is _____
A. overweight.
B. obese.
C. hefty.
D. extremely obese.
Answer:
A. overweight
Explanation:
Answer:
c
Explanation:
since of his lack of growing his body dont know what to do with the needed fat so while he's still growing its in his tummy waiting
Please Help Me!!!!!!
Answer:
a.
Explanation:
Moji listed the solids in order of hardness as graphite < chalk < quartz. His
peer group suggested some experimental errors that may have caused this to
happen. Which experimental error most likely led Moji to this conclusion?
A. Moji might have used color as an indication of hardness.
B. Moji might have thought that crumbliness was a sign of softness.
C. Moji might have thought that crumbliness was a sign of hardness.
D. Moji could have chosen hardness tests that were not reliable.
Answer: D.
Explanation:
Moji listed the solids in order of hardness as graphite < chalk < quartz. because his peer group suggested some experimental errors that may have caused this to happen. The experimental error most likely led Moji to the conclusion that Moji could have chosen hardness tests that were not reliable. Therefore the correct option is D.
What is the matter?Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.
These different states of matter have different characteristics according to which they vary their volume and shape.
There are various tests to judge the mechanical hardness of any solid material such as the Rockwell hardness test, Brinell's hardness test,Vicker's diamond hardness test, and Knoop's hardness test which is also known as microhardness test
The experimental error most likely led Moji to the conclusion that Moji could have chosen hardness tests that were not reliable. Therefore the correct option is D.
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Which is a possible result of higher air temperatures caused by global warming?
increase in sea level
freezing of polar ice caps
rapid evaporation of water in the soil
flooding of low-lying coastal areas
Answer: C. rapid evaporation of water in the soil :)
A possible result of higher air temperatures caused by global warming is rapid evaporation of water in the soil.
What is global warming and its causes and consequences?Global warming is a phenomenon that has been registered around the world during the last decades. It refers to a progressive increase in the average temperatures of the oceans and the Earth's atmosphere, which has consequences for flora and fauna, in addition to impacting critical sectors such as agribusiness.
Among the consequences of global warming are melting ice, rising sea levels, desertification, changes in rainfall, floods and reduced biodiversity.
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Help me plz i'll mark brainliest
Answer:
a PDF is what u use to upload an assignment to turn it in to get graded
Question 4 of 10
If infrared waves can move information through air, what is the advantage of
sending their signals through networks of cables?
A. Cables are easy to maintain.
B. These waves need to travel only short distances.
C. Cables transmit infrared waves over longer distances.
O D. The denser the medium, the faster the wave.
Answer:
C. Cables transmit infrared waves over longer distances.
Explanation:
A.pex
Answer:
The answer is C.Cables transmit infrared waves over longer distances.
Explanation:
I took AP EX quiz.
1. When the two cars have the same mass, what is true about their
velocities?
Answer:
I mean they have the same amount of velocity
HELP!! I’m DESPERATE!! 19 POINTS!!!
Which action might lead scientists to develop new explanations about the
universe?
A. Becoming familiar with the history of space exploration
O B. Speculating on whether conditions on other planets might support
life
O C. Developing new technologies designed to see farther into space
than before
D. Wondering about the present size and shape of the universe and
how it formed
c. Developing new technologies designed to see farther into space
than before
What is universe?The universe is everything including all of space, and all the matter and energy that space contains. Also it includes time itself and, of course, it includes us.
What began as a sequence one-upmanship in space-related technological advancements between the U.S. and the Soviet Union would spawn incredible progress observed in innovation to this day. The battle for dominance not only as a global superpower, but a space power, led the United States and the Soviet Union to race to put men in space and eventually on the moon.
The launch of the Soviet satellite Sputnik on Oct. 4, 1957, would place pressure on the U.S. to design technologies crafted for space exploration. This, in turn, spurred a series of innovations in technology that would have far reaching impacts beyond space.
These technologies can be seen as developments in modern healthcare, construction, and transportation. Relevant examples include medical imaging techniques, artificial limbs, water filtration systems, solar panels, firefighting equipment, shock absorbers, air purifiers, home insulation, weather resistant airplanes, infrared thermometers, and countless other vital inventions.
While all these creations help sustain essential aspects of modern life, we carry one of the largest technological advancements from the space race in our pockets today.
Therefore, Developing new technologies designed to see farther into space than before lead scientists to develop new explanations about the universe.
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The grocery store is 20 miles away
from where you live. You drive your
car and it takes .5 hours to get there.
What was your rate of speed?
Answer:
40mph
Explanation:
20miles .5 miles away if you go 20 mph you get there in a hour soo if you double to 40 mpg you get there in 0.5
Answer:
40 mph
Explanation:
you went 20 miles in half a hour, multiply twenty by 2 and you get 40
e) Thermal energy is released during
some energy conversions.
True or false ?
F) If enough heat energy is absorbed by a liquid, the liquid solidifies.
True or false ?
Answer:
e) True, f) False
Explanation:
e) Let consider a close system, that is, a system with no mass interactions with surroundings. Then, we get the following expression by the First Law of Thermodynamics:
[tex]Q_{net,in} - W_{net, out} = \Delta U[/tex] (1)
Where:
[tex]Q_{net, in}[/tex] - Net input heat, measured in joules.
[tex]W_{net, out}[/tex] - Net output work, measured in joules.
[tex]\Delta U[/tex] - Change in thermal energy, measured in joules.
Please notice that work comprises all kind of work (i.e. mechanical, electric, magnetic), whereas heat comprises all heat interactions including chemical and radioactive phenomena.
If thermal energy is released, then [tex]\Delta U < 0[/tex], which is caused by three scenarios:
(i) [tex]Q_{net,in} < 0[/tex], [tex]W_{net, out} < 0[/tex], [tex]|Q_{net,in}|>|W_{net,out}|[/tex]
(ii) [tex]Q_{net, in} > 0[/tex], [tex]W_{net,out} > 0[/tex], [tex]|Q_{net,in}|<|W_{net, out}|[/tex]
(iii) [tex]Q_{net,in}< 0[/tex], [tex]W_{net, out}>0[/tex]
In the case [tex]Q_{net,in} > 0[/tex], [tex]W_{net, out} <0[/tex], the thermal energy of the system is increased. Therefore, thermal energy is released during some energy conversions. Answer: True
f) A liquid solidifies when temperature goes below point of fusion, meaning a realease of heat with no work interactions. That is:
[tex]Q_{net, in} = \Delta U[/tex], [tex]Q_{net, in} < 0[/tex] (2)
If [tex]Q_{net, in} < 0[/tex], then [tex]\Delta U < 0[/tex]. Then, if a liquid absorbs heat energy, then thermal energy is increase and the liquid does not solidifies. Answer: False.
How many week are in .62 years?
Answer:
32.32857
Explanation:
Searched on the web
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Acceleration Due to Gravity - Free Fall
V=V;+gt
vir initial velocity (m/s)
=final velocity (m/s)
g=gravity (10 m/s2)
t = time (s)
1. What is the velocity of a dropped object after it has fallen
downward for 3.0s?
V=V;+gt
Vi = 0
8 = 10
t = 3
2. A brick is thrown down off a bridge with a velocity of 5 m/s. What
is its velocity after it has fallen for 2 seconds?
I
3. An arrow is launched straight up from the ground. It reaches its
highest point in 6 s. What velocity was it released at?
a b c d
A V=V+gt
dhehehdhehdhshehehehehehe
Which idea did Ptolemy’s model use to explain why the planets appeared to move backward as they moved in their orbits?
The planets spun in epicycles.
The planets rotated on their axes.
The planets revolved around the Sun.
The planets were made of different materials.
Answer:
The planets spun in epicycles.
Explanation:
Ptolemy's model used to explain that the planets spun in epicycles.
What is Ptolemy's model? How it was explained?
Ptolemy placed the Earth at the center of the geocentric model. The system of planetary motions according to which the earth is at the center with the sun, moon, and planets revolving around it and each orbit except for the sun and moon is composed of a principal circle upon which moves a smaller circle carrying the planet. As he knows about the planetary motions and ideas about the universe was a set of spheres that surrounds the earth. He also believed that the moon has the orbit which is closest to the earth, the Mercury , the Venus and the sun.
According to Ptolemy he considered and mentioned completely about 48 constellations.
Hence, Option A is the correct answer.
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Which statement describes an example of destructive interference?
A. Light shining on a surface has gaps after passing through two slits.
B. Light shining on a DVD surface produces different colors.
C. The inside of a seashell appears to be many different colors.
D. A lamp lights an area around a corner.
It's A
Answer:
A
Explanation: Just did the test:)
A boy and a girl are balanced on a massless seesaw. The boy has a mass of 75 kg and the girl's mass is 50 kg. If the boy sits 2.0 m from the pivot point on one side of the seesaw, where must the girl sit on the other side?
Answer:
The girl must sit 5 m on the other side of the seesaw.
Explanation:
Given;
mass of the boy, = 75 kg
mass of the girl, = 50 kg
distance of the boy from the pivot, = 2 m
let the distance of the girl from the pivot = d
<-------------2m-------------><-------------d-------------->
-----------------------------------------------------------------------------------
↓ Δ ↓
75 50
Apply the principle of moment, about the pivot;
clockwise moment = anticlockwise moment
75 x 2 = 50 x d
150 = 50d
d = 150 / 50
d = 3 m
The distance of the girl from the pivot is 3 m.
Therefore, the girl must sit ( 2m + 3m ) on the other side of the seesaw.
Rahul runs a distance of 12
km with an average speed of 4.5 km/h and
Rita runs 1.6 km within 15 minutes. Who
runs faster?
Answer:
Rita runs faster
Explanation:
To obtain the answer to the question given, we determine the speed of Rita. This can be obtained as follow:
Distance = 1.6 km
Time = 15 mins
Speed =?
Next, we shall convert 15 mins to hour. This can be obtained as follow:
60 mins = 1 h
Therefore,
15 mins = 15 mins × 1 h / 60 mins
15 mins = 0.25 h
Thus, 15 mins is equivalent to 0.25 h.
Finally, we shall determine speed of Rita as follow:
Distance = 1.6 km
Time = 0.25 h
Speed =?
Speed = distance / time
Speed = 1.6 / 0.25
Speed = 6.4 Km/h
Thus Rita's speed is 6.4 Km/h
Comparing the speed of Rahul and Rita
Rahul's speed = 4.5 km/h
Rita's speed = 6.4 Km/h
We can see that Rita's speed is greater than Rahul's speed. This simply indicates that Rita runs faster than Rahul.
which are different forms of energy.
please guys give me fast answer
chemical, sound, radiant, electric???
Bert is playing on his school's basketball team and one of the players on the other team continues to push him off balance when the referee isn't looking. Bert is getting frustrated as the other player is beating him to the ball almost every time by using this illegal tactic. How should Bert handle this situation in a responsible manner?
Refuse to shake hands with the other team at the end of the game and call them all dirty players
Take a flop and fall down purposely the next time the player does it to get the ref's attention
Talk to his team captain and ask him to alert the referee to keep a better eye on the player
When the ref isn't looking push the other player off balance when he has the opportunity
Answer:
Talk to his team captain and ask him to alert the referee to keep a better eye on the player.
Answer:
C - talk to coach and ask to alert the ref
Explanation:
I took the test
A 15.75-9 piece has a specific heat of 0.46 J/g °C, and its temperature
changes from 25°C to 175°C. How much energy does it absorb?
Answer:
Q = 1086.75 [J]
Explanation:
We must use the following equation of thermal energy, which relates the specific heat to the mass and to the change in temperature.
[tex]Q=m*C_{p}*(T_{final}-T_{initial})\\[/tex]
Where:
m = mass = 15.75 [g]
Cp = specific heat = 0.46 [J/g*C]
Tfinal = final temperature = 175 [°C]
Tinitial = initial temperature = 25 [°C]
Now replacing:
[tex]Q=15.75*0.46*(175-25)\\\\Q= 1086.75[J]\\[/tex]
1. A rock rolls off the edge of a cliff with an initial velocity of 10 m/s.
It takes 6.5 seconds for it to hit the ground below. What is the
displacement of the rock?
Answer:
65meters
Explanation:
Given data
velocity= 10m/s
time= 6.5seconds
Applying the expression
velocity= distance/time
substitute
10=distance/6.5
distance= 10*6.5
distance= 65meters
Hence the displacement is 65meters
Which is an example of a solution?
OA.
flour and water
B.
sand and water
C.
salt and water
D.
oil and water
E.
ice and water
Answer:
C
Explanation:
plato
Answer:
c. Salt and Water
Explanation:
A car driving at 20 m/s accelerates continuously 2m/s2 for 3 seconds. What is its final velocity
Answer: V= u+ at
V= final velocity
u=initial velocity
a=acceleration
t=time taken
V= 20 + 2*3
V= 26m/s
Explanation:
If a car is traveling forward at 15 M/S, how fast will be going in 1.2 seconds if the acceleration is 10 M/s2?
Answer:
Vf=27m/s
Explanation:
Vf=Vi+at
Lets substitute the known variables into the equation:
Vf=15+10×1.2
Vf=27m/s
So itll be going 27metres per second
Only about 50% of the solar energy directed toward Earth penetrates directly to the surface. Explain what happens to the rest of the radiation.
Answer:
it is absorbed or reflected by the atmosphere
Explanation:
In the case when approx 50% only of the solar energy would be directed towards earth and it would be penetrates directly to the surface so the rest or remaining of the radiation would be either absorbed or refected by the atmosphere
So as per the given situation the above represent the answer
hence, the same is to be considered and relevant
what is 1=1?????????????????????????????//// HELP
Answer:
I am pretty sure that it is one
Answer:
Explanation: is 1
While riding her bike, Ms. Parker average a velocity of 20m/s. If she maintains that velocity for a time of 20 seconds, how far does she rides?
Answer:
400 m
Explanation:
20m/s x 20s = 400m
A crate of books is dragged horizontally across a rought floor at a constant
velocity. If the normal force acting on the crate is 66 Newtons, determine the
mass of the crate.
Answer:
m = 6.73 kg
Explanation:
Given that,
The normal force acting on the crate = 66 N
We need to find the mass of the crate.
Normal force = weight of the crate
N = mg
m is mass of the crate
[tex]m=\dfrac{N}{g}\\\\m=\dfrac{66}{9.8}\\\\m=6.73\ kg[/tex]
So, the mass of the carte is 6.73 kg.