Answer:
I want to know what is electromagnetism
I know that it has something to do with magnets
I learned that the north pole and south pole stick together
Explanation:
Please mark as Brainliest and sorry if it isn't good ^^;
Increasing which factor will cause the gravitational force between two objects to decrease?
A. weights of the objects
B. distance between the objects
C. acceleration of the objects
D. masses of the objects
A circus has a performer that drives a motorcycle inside a circular cage. The motorcycle drives along the curved inside surface of the cage at a constant speed of 35 m/s.
Which of the following best describes the velocity of the motorcycle?
A. The velocity is not changing because the speed is not changing.
B. The velocity is increasing because the speed is increasing.
C. The velocity is decreasing because the speed is decreasing.
D.The velocity is changing because the direction is changing.
Answer:
the answer is d im pretty sure
Explanation:
15. Astronomers use different types of telescopes to observe different parts of the
electromagnetic spectrum. This allows astronomers to study objects in space. Some
electromagnetic waves are blocked by Earth's atmosphere, making it difficult for
astronomers to focus the energy into a viewable image. Instead of actually viewing
the energy, astronomers have learned to view the interactions of the energy with
the atmosphere. These faint interactions with the atmosphere allow them to study
highly energetic objects such as pulsars and black holes.
If the waves that are being observed have a frequency of 1022, what type of wave is
being observed?
A.gamma rays
B.ultraviolet
C.microwave
D.radio waves
At the frequency of 1022, the radio waves will be observed.
What is an electromagnetic spectrum?The complete range of electromagnetic radiation, classified by frequency or wavelength. Despite the fact that all electromagnetic waves have a wide range of frequencies, wavelengths, and photon energies, they all move at the speed of light in a vacuum.
The range of all electromagnetic radiation is represented by the electromagnetic spectrum, which also includes numerous subranges, also known as portions, such as visible light and ultraviolet radiation.
The various parts have different names based on variations in the emission, transmission, and absorption of the corresponding waves as well as on the various practical uses for which they are put to use.
At the frequency of 1022, the wave observed will be a radio wave.
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Which of the following describes the correct order of layers in the sun’s atmosphere (moving outward from the sun)?
A.
chromosphere, photosphere, corona
B. hydrogen, helium, corona
C.
photosphere, chromosphere, corona
D. photosphere, chromosphere, solar wind
Answer:
C
Explanation:
Answer:
c or d
Explanation:
The amount of runoff in an area depends on all of the following except
amount of rain
the vegetation
wind dropping sediment
type of soil
what is this one please help me
Answer:
paleolithic
Explanation:
Rice in a bowl has a volume of 84 cubic centimeters and a mass of 63 grams . Calculate its destiny
Answer:
0.75
Explanation:
Answer:
0.75
Explanation:
The moon orbits around the earth, which rotates on its own axis. As a result,
A)
we get different seasons.
B)
moonrise and moonset are unpredictable.
C)
the moon rises almost one hour later each day.
D)
the moon is seen in the sky for roughly 12 hours.
b is it
Explanation:
ok thx byehhhhheeehheeee
How does gravity cause the solar system to move within the galaxy?
Gravity causes the solar system to move within the galaxy without any
issues and it is known as the strong bond that holds together entire galaxies
which includes the sun, moon, planets etc.
This keeps the planet revolving around the sun and ensures there is no
deviation from the line followed from the onset. If there is a deviation and
planets end up crashing into one another then the result will be very
disastrous and would lead to mass loss of lives.
Gravity also ensures that different planets and countries have a very different
type of climate due to the relative exposure of the planets/areas to the sun.
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The table below shows the characteristics of three components of the solar system labeled A, B, and C. Which choice identifies the components in the correct order?
A Made of ice, rocks, gas, and dust
Revolves around a star
Has a tail of dust and gas
B Revolves around a star
Smaller than a plane
revolves around a star
C Revolves around a star
Rotates on its axis
large body of rock or gas
1. Comet, asteroid, planet
2. Comet, planet, star
3. Planet, asteroid, moon
4. Star, planet, comet
Answer:
1
Explanation:
When the moon is directly between the Earth and sun, it is called a _____ eclipse.
A. new moon
B. lunar
C. solar
D. full moon
How does freezing and evaporation affect salinity?
Choose ALL that apply
Select 3 correct answer(s)
Question 1 options:
When that water melts in the spring, the salinity decreases.
none of the choices
When ocean water evaporates, the salinity increases.
When ocean water freezes, the salinity of water increases.
Look in the comments. I d a r e y o u
Answer:
Where is the comments??
Explanation:
Answer:
ok
Explanation:
When a rider steps onto the skateboard, the force between the skateboard and the track choose [increases, decreases, stays the same]
Answer:
K so I worked on this not so long ago the answer I put was : It really depends on how to track is if it is a flat one then the force stays the same but if the track is whre you are going down then your velocity goes up as well as the speed increases with but if your going up a track then your speed decreases.
What is a main difference between Mars and Saturn?
1. Mars has a relatively longer distance from the sun and many more moons than Saturn.
2. Mars has a relatively shorter year and a higher atmospheric temperature than Saturn.
3. Saturn has many more rings and a relatively higher atmospheric temperature than Mars.
4. Saturn has many more rings and a relatively shorter year than Mars.
Answer:
2
Explanation:
mars has a shorter year because when it revolves around the sun, it takes less time than, saturn who is millions of miles away from mars, longer. Also, mars is closer to the sun than saturn
The main difference between Mars and Saturn is Mars has a relatively shorter year and a higher atmospheric temperature than Saturn. Hence B option is correct.
What is Mars ?One of our solar system's most studied planets is Mars. Mars is the fourth planet from the sun and features two peculiar moons in addition to a distinctive rusty red look.
Inside our solar system, there is a frigid, arid planet called the Red Planet. While it has a relatively thin atmosphere, the dusty, (as far as we can tell) dead planet is everything from boring.
Extreme dust storms may cover the whole planet, the atmosphere's carbon dioxide can get so frigid that it turns straight into snow or ice, and marsquakes—a Mars-version of earthquakes—regularly rumble the surface. Consequently, it is not surprising that scientists are still fascinated by this little red pebble.
Hence option B is correct.
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Help me answer these, please. I GIVE CROWNS!! PLEASE!!
Answer: 1- A diagram showing the forces acting on the object.
2- The force vector describes a specific amount of force and its direction. You need both value and direction to have a vector.
3- A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.
4- I don’t know
5- When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces
6- By applying an unbalanced force, you can change the motion of an object. Unbalanced forces can make an object at rest start moving, make a moving object stop, or change the direction and speed of the object.
7- If the forces on an object are unbalanced, this is what happens: a stationary object starts to move in the direction of the resultant force.
8- Imbalance or unequal force
9- The result is no motion. Balanced forces can cancel each other out. Any time there is a balanced force, the object does not move.
10- net force is the vector sum of all the forces that act upon an object.
RESTATE THESE
Explanation:
RESTATE!!!!
How are both electromagnetic and mechanical waves used when people communicate with each other?
Electromagnetic and mechanical waves used when people communicate with each other, this done by an antenna(sender & receiver)
What is antenna ?An antenna is a metallic structure that produce or/and receives electromagnetic waves it is available in different shapes. There are different types of antennas which are Short Dipole antenna, Dipole antenna, Loop antenna, Monopole antenna.
when input of the Dipole antenna is connected to the electric signals having certain frequency. Due to change in the electric signal, there is fluctuation in polarity of dipoles in dipole antenna and that change in the dipole produces electromagnetic wave.
when electromagnetic wave is received by the dipole antenna, dipoles in the antenna get affected by electromagnetic waves, dipoles fluctuate at frequency of received electric signals and produces electric signals of same frequency as electromagnetic wave.
Sound wave is mechanical wave. sound wave is converted in electric signals by using microphone, it gets amplified and given to to input of the antenna(Transmitter). This antenna converts Electric signal into electromagnetic wave. This converted electromagnetic wave is received by another antenna(receiver). this antenna converts electromagnetic wave into electric signals, this signals are amplified and given it to the speaker.
Hence this is how people use electromagnetic and mechanical waves for communication.
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The graph represents the percentages of salt water and fresh water on Earth. What is the percentage of salt water?
1. 3 percent
2. 50 percent
3. 97 percent
4. 100 percent
Answer:
97.
Explanation:
Though the exact number is 96.5, we can round it up since its 5. When rounding by 10, 5 or more rounds up and 4 or less rounds down. So rounding up of 96.5 is 97. 3)
The percentage of salt water is 97 percent on Earth. Hence, option (3) is correct.
What is water distribution on Earth?Saline seawater makes up the majority of the water in the atmosphere and on the surface of the Earth, with fresh water making up less than 1% of the total. The majority of the water on Earth is saline or salt water, with an average salinity of 35 ‰ (or 3.5%, or around 34 grams of salts in 1 kg of saltwater), though this fluctuates slightly depending on the amount of runoff absorbed from nearby land.
Over 97% of the water on Earth comes from the oceans and marginal seas, saline groundwater, and water from saline closed lakes, however no closed lake holds a large amount of water on a global scale. Except when evaluating water quality in arid places, saline groundwater is rarely taken into account.
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First Amendment
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
Based on the First Amendment, which statement can you assume to be true about the Founding Fathers?
They believed government would not make laws that affected rights.
They were concerned about the government having too much power.
They were concerned the people would not rally behind a single religion.
They believed the proper role of citizens was to leave politics to their leaders.
Answer:
They were concerned about the government having too much power.
Answer:
B. They were concerned about the government having too much power.
Explanation:
please help!!!!!!!!!!!!!!!!
who like countrie music give me a straghit awncer and i will create a nother one
using this link, https://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=1053
Observe: Click Reset. Select Lights on and turn off Show rulers. Select Longitudinal waves. Check that the Amplitude is 10.0 cm, the Frequency is 1.00 Hz, and the Tension is 2.0 N. Set the Density to 1.0 kg/m, and click Play.
What is the motion of the hand?
Turn the lights off. What is the motion of the green dot?
Follow the motion of a single compression of the wave. How does the compression move?
Answer:
1 The hand is moving at a steady up and down motion.
2 The green dot is moving in a trait up and down motion
3 It is moving in a waving and calming motion
Explanation:
John throws a baseball from a standing position. Which of the three possible paths will the ball follow?
Path A
Path B
Path C
Answer: C
Explanation:
Bro this is common sense. Throw something across the room and watch it. It isnt going to be repulsed and fly up. It also isnt going to continue on forever. It will clearly fall and hit the ground
Indirect economic value to Steven and his family,
shade trees
raw materials
Crops
Wet land
Recreational activities
1. direct economic value
2. indirect economic value
Pls Mach these farming components to the right one/correct ☝️
Answer:
indirect economic value
Which object has the most Kinetic Energy, and why?
A giant rock slowly rolling down a hill
A giant rock quickly rolling down a hill
A small rock slowly rolling down a hill
A small rock quickly rolling down a hill
I MOST IMPORTANTLY NEED AN EXPLANATION
Answer:A giant rock quickly rolling down a hill can I have brainlis?
Explanation:
James loves music. What would be an experiment he could conduct?
Dance to a cool song and record heart rate.
Write a song
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Answer:
Record his heart rate while listening to different types of music and record/compare the results.
Explanation:
The gravity of Earth is attracting a person towards the center with 500N of gravitational force. The person is exerting a reactionary force on the Earth with how much force? Explain your thinking behind this.
Answer:
500N
Explanation:
Because it stays the same.
Why are there variations of traits within a population?
Answer:
The variation and distribution of traits in a population depend on genetic and environmental factors. Genetic variation can result from mutations caused by environmental factors or errors in DNA replication, or from chromosomes swapping sections during meiosis.
Explanation:
Hope this helps!
Answer:
The variation and distribution of traits in a population depend on genetic and environmental factors. Genetic variation can result from mutations caused by environmental factors or errors in DNA replication, or from chromosomes swapping sections during meiosis.
Explanation:
A biologist studied the trees in a nature preserve. She found that there were 4 different types of trees—pine, pecan, maple, and oak. The table below shows how many of each type of tree she found. Which circle graph is correct for the data in the table?
Which direction will heat be transferred?
Question 4 options:
From lower temperatures to higher temperatures
From higher temperatures to lower temperatures
Heat is never transferred, thermal energy is always constant.
In both directions equally
please include explanation
Answer:
From higher temperatures to lower temperatures.
Explanation: Heat goes from hot to cold. Never cold to hot.
