How does the electric force between two charged objects on the charges of the objects
Answers
Answer:
If one charged object is positive, and the other charged object is negative, then the two objects will attract each other. If both objects are positive, the objects will repeal each other. If both objects are negative, the objects will also repeal each other.
Related Questions
I just need a full answer here not only so I can answer the question, but also so that I can learn.
Locate the main groups of elements in each column on the periodic table, and identify the number of valence electrons there are in each element in a particular group. Infer why some elements are more reactive than others due to their number of valence electrons.
Answers
Answer: Number of valence electrons determine how fast or easy for an atom to gain stability. Either by gaining electrons or by losing electrons.
Group one and seven elements react fast because they only have one electron to gain or lose.
Explanation:
Number of valence electrons tell us the number of electrons an atom will gain or lose in order to attain stability in electron configuration.
All the elements in a particular group will have the same number of valence electrons as follows:
Group one - 1 valence electron
Group two - 2 valence electrons
Group three - 3 valence electrons
Group four - 4 valence electrons
Group five - 3 valence electrons
Group six - 2 valence electrons
Group seven - 1 valence electron
Group eight - 0 valence electron
Some elements are more reactive than the others because of the electron affinity, oxidation state and electronegativity of the atoms
For instance, elements in group 7 are more reactive than others because of their oxidation state and they have very high electronegativity.
Also, group one elements are more reactive because they only have one electron to loose.
A student wanted to check her idea that a planet that is closer to the Sun receives more of the Sun’s energy than a planet that is farther away from the Sun. She placed a radiometer 50 cm
away from a clamp light with a 150 –W lightbulb
To check her idea, she also needed to set up another clamp light and radiometer.
Which of the following setups would she use?
A. a clamp light with a 50-W lightbulb placed 25 cm from the radiometer
B. a clamp light with a 50-W lightbulb placed 50 cm from the radiometer
C. a clamp light with a 150-W lightbulb placed 25 cm from the radiometer
D. a clamp light with a 150-W lightbulb placed 50 cm from the radiometer
Answers
Answer:
C. a clamp light with a 150-W lightbulb placed 25 cm from the radiometer
Explanation:
because the temperature has to be set, meaning it can't change, and it should be a different distance away than the first one.
Hope this helps! Stay safe!
Did you notice that you could use the magnet to get the paper clip to move without
touching it?How was this similar to the floating plant?A change in motion can only happen when a force is acting on an object.What force was acting on the paper clip?Using the paper clip and the magnet as an example, make a claim how magnets can make an object move without touching the object.
Answers
Yes, I noticed that a magnet could be used to move the paper clip without touching it.
It is similar to the floating plant because both processes involve a force acting on an object without having a direct physical contact.
The force acting on the paper clip is described as the magnetic force,
The claim can be made that magnets could move an object without physical contact by using the magnetic force to exert a force on the object.
What is magnetic force?A magnetic field is described as a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.
In this case , the magnetic force arose due to the interaction between the magnetic fields of the magnet and the paper clip.
The magnet has a magnetic field around it, which exerts a force on any nearby magnetic material, such as the paper clip.
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Answer:
Yes, I noticed that a magnet could be used to move the paper clip without touching it.
It is similar to the floating plant because both processes involve a force acting on an object without having a direct physical contact.
The force acting on the paper clip is described as the magnetic force,
The claim can be made that magnets could move an object without physical contact by using the magnetic force to exert a force on the object
Explanation:
Explain the relationship between wavelength and frequency in the electromagnetic spectrum.
Answers
Answer:
The wavelength and frequency of light are closely related. The higher the frequency, the shorter the wavelength
Explanation:
The wavelength and frequency of an electromagnetic wave are inversely proportional to each other.
What is Wavelength and frequency?Wavelength is the distance between any two identical points or adjacent crests in the adjacent cycles of a waveform signal which is propagated in space or along a wire. In the wireless systems, this length is usually specified in the units of meters (m), centimeters (cm) or millimeters (mm).
Frequency is the rate at which the current changes its direction per second time. Frequency is measured in the units of hertz (Hz), an international unit of measure where, 1 hertz is equal to 1 cycle per second of time.
The wavelength in an electromagnetic spectrum is inversely proportional to the frequency of the wave. The shorter the wavelength, the higher the frequency of the wave. Because, all light waves move at the same speed in a vacuum medium, the number of wave crests passing at a given spot in one second is determined by the wavelength of the wave.
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A 10 gram ball is held 2 meters from the ground. It has potential energy. Calculate it.
Answers
Answer:
196J or 200J
Explanation:
Potential Energy = mgh
m( mass) = 10gm
h ( height) = 2m
g = 9.8 or 10 m/s ^2 ( choose whichever one is taught to you, usually in my school its 9.8 if the value isn't given )
PE = 10 × 10 × 2 = 200 J
or
PE = 10 × 9.8 × 2 = 196 J
Hope it helps
Answer:
200J
Explanation:
2m x 10gm = 200
What are the four forms of matter that waves can travel through?
Answers
Answer:
It can be a solid, liquid, gas,plasma,etc. When waves travel through a medium, the particles of the medium are not carried along with the wave.For example, water waves have to travel in water. Sound waves need a solid, a liquid or a gas to travel in.
The four states of matter are gas, liquid, solid and plasma. Waves can travel through all these states of matter but by different transfer modes.
What are waves?Waves are energy transfer through matter. There are two types of waves namely, mechanical waves and electromagnetic waves. Mechanical waves can travel through a medium only whereas, electromagnetic waves can travel through vacuum also.
The four states of matter are liquid , gas , solid and plasma. All of these states are allotting waves to pass through. Through solids the energy is transferred by conduction. and in gases and liquids, convection is the mode for energy transfer.
Only electromagnetic waves can pass through plasma state of matter. When the frequency of the waves is greater than the plasma frequency, then electromagnetic waves can pass through it.
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Any other Gypresgions come from shakespeare and are they used today?
Answers
Answer:Both books find Shakespeare deeply Catholic, but they reach very different conclusions about what that meant in his life and work during a time of official Protestantism, the Jesuit mission to England, and sharp divisions among Anglicans, Puritans, and Catholics.
Explanation:
Which of the following correctly explains a difference between the Steady State and Big Bang theories?
The Steady State theory says the galaxies are moving; the Big Bang theory says the galaxies are not moving.
The Steady State theory says the universe is getting smaller; the Big Bang theory says the universe is getting bigger.
The Steady State theory is supported by more evidence; the Big Bang theory is supported by less evidence.
The Steady State theory says the universe was always there; the Big Bang theory says the universe
Answers
Answer:
The Steady State theory says the universe is getting smaller; the Big Bang theory says the universe is getting bigger.
Big Bang theory: as the universe gets bigger we have the same galaxy’s and no more get created so in short the matter dilutes as the universe expands
Sorry, another question on this packet! What are my drawing supposed to look like on these questions?
Answers
Answer:
Draw an underwater maps of the things
Explanation:
Just follow the instructions and draw a picture that doesn't include water, life ect.
2) Describe how light is affected by
(a) a transparent object
(b) an opaque object
(c) a translucent object
Answers
Opaque almost blocks light flow
And translucent allows some but not all light thru
A. The girl kicks a ball with a force of 10 N, what is the size of the reaction force?
B. The baseball player hits the ball with a force of 20 N, what is the size of the reaction force?
C. The rockets thrusts push down with a force of 1,000 N, what is the size of the reaction force?
D. You blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right. Use Newton's Third Law to explain why this happens.
Answers
B.20
C.1,000
I took the test
A. The size of the reaction force is 10 N.
B. The size of the reaction force is 20 N.
C. The size of the reaction force is 1,000 N.
D. As every action has equal and opposite reaction, when you blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right.
What is force?A force is an effect that tends to move a stationary object into motion, stop a moving object, alter the speed and direction of a moving object, or alter the size and shape of a body.
Newton's third law of motion states that For every action, there is an equal and opposite reaction. So,
A. The girl kicks a ball with a force of 10 N, the size of the reaction force will be 20 N.
B. The baseball player hits the ball with a force of 20 N, the size of the reaction force is 20 N.
C. The rockets thrusts push down with a force of 1,000 N, the size of the reaction force is 1000 N.
D. According to Newton's third law of motion, For every action, there is an equal and opposite reaction. So when you blow a balloon up and let it go. Air pushes out to the left but the balloon moves to the right which in opposite in direction and magnitude of force is equal.
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Why is it important for a peer to review your writing, in addition to reviewing it yourself?You still have the ideas in your head, so you may not notice when they did not make it onto the page.
You will ignore all of the problems in your report because you won’t want to fix the problems.
All of the above
A peer has a better understanding of your topic than you do and can find mistakes.
Answers
Answer:All of the above
Explanation:
The bottom wave has a greater _____
(1 point)
amplitude.
frequency.
trough.
wavelength.
Answers
Answer: hope this helps ♡
The bottom wave has a greater frequency.
Explanation:
1. Waves with a low frequency have a longer wavelength.
2. Waves with a high/great frequency have a shorter wavelength.
The bottom wave has a greater frequency. So, the second option is correct.
What is meant by frequency of a wave ?Frequency of a wave is defined as the number of oscillations the wave completes in one second.
Here,
The diagrams of two waves are represented. The propagation of wave from the time zero to one second is given.
From the first diagram,
The wave is travelling from point a at t = 0 and reached at the point b at t = 1 s. This means in a time duration of 1 second, it has travelled a distance ab from a to b. The time taken for one oscillation to complete is called the time period. In the diagram, the number of waves passing in one seconds can be calculated. A few number of waves passed in one second.
From the second diagram,
The wave is travelling from the point a to point b in a time duration of one second. When compared to the top wave, the time taken for one wave to complete is lesser for the bottom wave. That means the time period is lesser than the top wave. In the diagram, it can be seen that, the number waves that has been completed in the one second is very high compared to that of the top wave. That means the bottom wave has higher frequency than that of the top wave.
Hence,
The bottom wave has a greater frequency.
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100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.
Here is your goal for this assignment:
Complete an activity on power
Complete one of these activities:
1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.
2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
Answers
Power is the rate at which work is done. James Watt is a famous engineer and inventor who developed the steam engine.
Who is James Watt?He improved the efficiency of the engine by adding a separate condenser, which reduced the amount of fuel needed. In his honor, the watt was named after him as the unit of power.
For the activity, here is a suggestion; conducting a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer.
Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
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PLEASE HELP
Which of the following represents a system that is completely open? A. a pot of boiling water B. a pressure cooker C. a capped soda bottle D. a pressurized canister of helium gas
Answers
Describe the relationship between frequency and wavelength
Answers
Answer:
Frequency and wavelength are inversely related.
Explanation:
Frequency and wavelength have an inverse relationship because if one thing goes up another goes down. For example, if frequency goes up, the wavelength goes down and vice versa.
Answer:
The relationship between wavelength and frequency is that the frequency of a wave multiplied by its wavelength gives the speed of the wave.
Explanation:
Frequency and wavelength are related terms also, used to describe electromagnetic radiation or light. One simple equation is used to convert between them: frequency x wavelength = speed of light. λ v = c, when λ is wavelength, v is frequency, and c is the speed of light.
I know I'm really late but I hope this helps lol
Explain why it is difficult to remove lid from a preserving jar which was closed when the food was full of steam?
Answers
Answer:
As the contents cool, the pressure of the air left inside the jar falls and the metal on the lid pops downwards. The greater atmospheric pressure outside the jar keeps the metal button depressed and makes it more difficult to open the jar.
How does the sport curling relate to Newton’s Second Law of Motion?
Answers
Curling is a sport in which players slide stones across a distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side. There are two brigades. Each platoon is trying to keep the other platoon's monuments down from the target by knocking their monuments out of the way.
Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object." This relates to the formula F = ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.
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Second law-
Newtons second law occurs during curling when the delivery man, such as Glenn Howard, applies force to the stone pushing down the lane to the target while friction pulls it back the other way to a slow stop. The mass of the stone is 40lbs and the net force of everything on item will give you its slowly decreasing acceleration. Otherwise known as, F=mA.
Third law-
This law can be exerted in the sport of curling when the force behind a stone being delivered is transferred into another stone that is at rest, where the energy and force of one moving object is transferred to another. This almost completely stops the original stone, and gives some speed to the stone(s) it collides with.
schematic of curling stone Formula for curling-
F=mA
The distance of Venus to the sun must be:
(= equal, > greater than, < less than)
< 1 A.U.
> 1 A.U.
= 1 A.U.
Answers
Answer:
less than 1. It is 0.72A.U.
Answer:
The distance of Venus from the Sun is > 1 A.U.
Explanation:
What is 1 A.U.?The average distance between the Sun and The Earth is called 1 A.U. or 1 Astronomical Unit.
1A.U. = 1.147 X 10^11 met.
The distance of Venus from the Sun is 1.08 x 10^9 met. that is approximately 0.72 A.U.
Hence the distance of Venus from the Sun is > 1A.U.
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How is the periodic table by atomic mass
Answers
PLEASE HELP ASAP
Describe the structure of the inner core? The inner core is made of no solid rocks. The inner core is made of liquid metal. The inner core contains melted rocks. The inner core is made of solid iron and nickel.
Answers
Answer:
The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). Temperature in the inner core is about 5,200° Celsius (9,392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm)
ason lives near a state park, and he likes hiking through the grassy trails that lead to a nearby lake. He appreciates nature and the surrounding components making up the ecosystem.
Jason knows humans rely on ecosystems and their cycling of matter and energy. Read each ecosystem service example below and identify the type of ecosystem service for each.
___
natural resources
____
plants and animals
____
water cycle and nutrients
____
recreational services
1.
cultural services
2.
regulating services
3.
provisioning services
4.
supporting services
Answers
Answer:
This was not helpful at all i dont likle you ur not invited to my birthday party it was a sleepover too!
Explanation:
I dont want to pay for premium. give me answers for free
Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answers
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
Which direction will a magnet point, if it is suspended in space by an astronaut? Please explain...
Answers
Which type of heat transfer
can occur through empty
space?
A. Convection
B. Conduction
C. Radiation
CONVECTION
CONDUCTION
RADIATION
Answers
Answer:
RadiationExplanation:
Radiation is the transfer of heat energy through space by electromagnetic radiation.
Radiation can occur through empty space
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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The question is in the image
Answers
Answer:
Machine A
Explanation:
Fish are not able to regulate their body temperature by producing heat.
How could a fish adjust its body temperature if it were too warm?
speeding up its level of activity
evaporating water from its skin
expelling water from its body
swimming into cooler water
Answers
Answer:
evaporating water from its skin
Answer:
swimming into cooler water
Explanation:
Which of the following will most likely be a sustainable environment?
A. An environment with a small variety of plants and animal species
B. An environment with a large variety of plant and animal species
C. An environment with many plant species but with only a few animal species
D. An environment with many animal species but with only a few plant species
Answers
Answer:
I think A
Explanation:
What is a Box Camera
Answers
A box camera is a simple type of camera, the most common form being a cardboard or plastic box with a lens in one end and film at the other. They were sold in large numbers during the late 19th and early 20th centuries. The lenses are often single element designs meniscus fixed focus lens, or in better quality box cameras a doublet lens with minimal (if any) possible adjustments to the aperture or shutter speeds. Because of the inability to adjust focus, the small lens aperture and the low sensitivity of the sensitive materials available, these cameras work best in brightly lit day-lit scenes when the subject is within the hyperfocal distance for the lens and of subjects that move little during the exposure. Eventually, box cameras with photographic flash, shutter and aperture adjustment were introduced, allowing indoor photos.
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3) Uses of pin hole camera?
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Answer:
a simple box-shaped hand camera, typically lacking an adjustment for shutter speed.