Energy enters an apple through photosynthesis, where the apple tree captures solar energy and converts it into chemical energy, storing it as sugar within the apple.
Explanation:The energy gets into the apple primarily through a process called photosynthesis. This process is essential for plants, allowing them to capture solar energy from the sun and convert it into chemical energy, which is stored in the form of sugars like glucose. Thus, the correct answer is: C. The apple tree stores energy from the Sun in the apple as sugar.
Through photosynthesis, plants absorb solar energy and use it to transform carbon dioxide and water into glucose, which is a simple sugar, and oxygen. The energy from the sun is stored in the chemical bonds of the glucose molecules. Later, this energy can be accessed by organisms that consume the plants, including humans when they eat plant products like apples.
Final answer:
Energy enters the apple through the process of photosynthesis, where the apple tree captures solar energy and stores it as sugar in its fruits, such as apples. So the correct option is C.
Explanation:
Energy gets into the apple primarily through the process of photosynthesis. The apple tree uses solar energy from the sun to convert carbon dioxide and water into glucose and oxygen. This chemical reaction captures the radiant energy in sunlight and converts it into stored chemical energy in the form of sugars, such as glucose, which accumulates in the fruits of the plant, including apples. Therefore, the correct answer to how energy gets into the apple in the first place is:
C. The apple tree stores energy from the Sun in the apple as sugar.A car changes speed from 25 m/s to 10 m/s in 240 seconds. Describe its acceleration.
Explanation:
Acceleration is change in velocity over change in time:
a = Δv / Δt
a = (10 m/s - 25 m/s) / (240 s - 0 s)
a = -0.0625 m/s²
So the car decelerates at 0.0625 m/s².
Which best describes the projectile motion of the marble as it leaves the table at the two different speeds?
Answer:
Marble with higher speed.
Explanation:
When a marble is thrown with low speed, then it covers less horizontal distance but the marble with higher speed covers more horizontal distance though they both travells through same height from table( i.e. vertical distance).
Since both horizontal and vertical distances are responsible for projectile motion, marble with higher speed describes the motion of projectile more effectively.
Identify the form of energy that matches each example.
Energy from electromagnetic waves:
a. thermal energy
b. chemical energy
c. radiant energy
Energy caused by changes in the structure of a nucleus:
a. kinetic energy
b. nuclear energy
c. potential energy
Energy resulting from movement and vibration of molecules:
a. radiant energy
b. thermal energy
c. kinetic energy
Energy an object has because of its position:
a. potential energy
b. mechanical energy
c. kinetic energy
Answer: First, question 1 is radiant energy.
Question 2 is nuclear energy
Question 3 is thermal energy
Question 4 is potential energy
Explanation Radiation ( or radiant energy) is high-energy electromagnetic waves. Nuclear energy such as nuclear fusion or fission can change the structure of a nucleus therefore lowering the atomic mass. When molecules vibrate, they produce a lot of energy through friction. That energy is converted into heat. An object that is not in motion but it's position can be altered to be in motion contains potential energy. Once the object gets moving, potential energy is converted into kinetic energy.
Radiant energy matches energy from electromagnetic waves, nuclear energy matches energy caused by changes in the structure of a nucleus, thermal energy matches energy resulting from movement and vibration of molecules, and potential energy matches energy an object has because of its position.
Explanation:The forms of energy include thermal energy, radiant energy, electrical energy, nuclear energy, and chemical energy.
Energy from electromagnetic waves is referred to as radiant energy. For example, light, microwaves, and radio waves carry radiant energy.
Energy caused by changes in the structure of a nucleus is known as nuclear energy.
Energy resulting from movement and vibration of molecules is called thermal energy. When objects absorb radiant energy like sunlight or microwaves, it is converted into thermal energy.
The energy an object has because of its position is called potential energy. This includes energy stored in the chemical bonds of compounds, which is called chemical energy.
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The newest generation of smart phone uses three different batteries connected in a series simultaneously to extend battery life and generate the energy necessary to power the device. If each battery is rated at 2.4 V , what is the overall voltage provided to the phone?
Answer:
7.2 V
Explanation:
The three batteries are connected in series to the terminals of the phone: it means that they are connected along the same branch, so the current flowing through them is the same.
This also means that the potential difference across the phone will be equal to the sum of the voltages provided by each battery.
Here, the voltage provided by each battery is
V = 2.4 V
So, the overall voltage will be
V = 2.4 V + 2.4 V + 2.4 V = 7.2 V
Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that converts electric energy to sound energy. Which device is Jeff’s father looking for?
A.
switch
B.
motor
C.
buzzer
D.
bulb
E.
battery
Answer:
The correct answer option is C. buzzer.
Explanation:
We know that Jeff's father needs to get a device from his workshop that converts electrical energy to sound energy.
So from the given options, buzzer is the best option Jeff's father can install in his house's security system.
An electric buzzer converts an electrical oscillating voltage into a sound output. In other words, the electrical pulses are converted into sound vibrations.
Answer:
The correct answer option is C. buzzer.
Explanation:
An airplane started at a distance of 20 km from Chicago and flew directly
away from it. 10 minutes later, the airplane was 55 km from Chicago. If dis
the distance of the airplane from Chicago, what is Ad?
A. 10 km
B. 55 km
C. 35 km
D. 20 km
Answer:
C 35 km , is the answer
Explanation:
d=55 - 20 = 35
Answer:64l.biggs on ig
Explanation:
What is Electrostatics
Answer: Electrostatics is a branch of physics that studies electric charges at rest.
Answer:
the study of stationary electric charges or fields as opposed to electric currents.
Explanation:
A cup of tea at 60°C is sitting on a table in a room whose temperature is 24°C. Choose the best statement concerning heat flow. Heat will flow from the tea into the air in the room. Heat will flow from the air in the room into the tea. There will be no exchange of heat. Heat will flow both ways in equal amounts.
Answer:
Heat will flow from the tea into the air of the room
Explanation:
Heat Transfer
Answer:
Heat will flow from the tea into the air in the room
Explanation:
The sistem is going to find an equilibrium temperature for both elements.
As we have a small hot mass and a large cold mass, that temperature will be colder than the tea (and hotter than the air, but as the size of a cup is too small for a room, it will be almost equal to 24 Celsius)
Then the heat will 'leave' the tea.
Select all the correct definitions
A. Mechanical advantage is the ratio of output force/ input force
B. Mechanical advantage is the ratio of input/output force
C. Efficiency is the ratio of input work/ output work expressed as a percentage
D. Efficiency is the ratio of output work/input work expressed as a percentage
Mechanical advantage: It is ratio of output force and input force.
Efficiency: It is ratio of output work and input work expressed as a percentage.
Answer: Option A and D
Explanation:
A mechanical advantage is defined as the ratio of output force to the input force. No units are there for the mechanical advantage. Based on the Law of conversation of energy, the energy cannot be multiplied. Efficiency is being defined as the effect of the device on the output work. It is represented as a percent.
In physics, mechanical advantage is the ratio of output force to input force (option A) and efficiency is the ratio of output work to input work, expressed as a percentage (option D). Options B and C are incorrect.
Explanation:The correct definitions for the terms discussed are as follows:
Mechanical advantage is correctly defined by statement A: 'Mechanical advantage is the ratio of output force to input force.' This means that it's a measure of the force amplification achieved by using a tool, mechanical device or machine system. Efficiency is best expressed by statement D: 'Efficiency is the ratio of output work to input work expressed as a percentage.' It's a dimensionless measure of how much of the input work is converted to output work in any system, where a higher percentage represents higher efficiency.
Statements B and C are incorrect. For mechanical advantage, greater output force than the input is desired, so the ratio is output/input, not input/output. Similarly for efficiency, we're interested in how much of the input work is usefully converted, so it's output/input, not vice versa.
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50+ POINTS and BRAINLIEST
Why does changing the medium affect light? How? And what medium make the wavelength slower and what makes it faster? Please dumb it down or summarize it, I really need help and I'm having trouble understanding this subject.
Explanation:
So this will not exactly be an answer but an explanation.
So you're studying waves I assume? If so great.
For starters we need to figure out where light is fastest; considering what you should know being that if the medium crosses an atom it slows down. This happens when they atom is absorbed. It isn't just one that slows it down it has to be multiple as it takes time to push the emission back out in the same direction.
Higher density = Slower WL
Lower density = Faster WL
Now where light and waves would travel fastest is in a pure vacuum where there is nothing to interrupt the path.
in summary any density slows it down, in a vacuum it can hit it's highest speeds.
If you still need help comment below
In the example equation that illustrates the synthesis of water, each element has 2 subscript because they are ____.
-diatomic
-gases
Answer:
diatomic is the answer
Each element has 2 subscripts because they are a diatomic molecule.
Explanation:
Given Equation: [tex]2 H_{2}+O_{2} \rightarrow 2 H_{2} O[/tex]
The meaning of ‘di’ in Greek is two. The diatomic molecules consist of only two atoms. The atmosphere of Earth mostly consists of diatomic molecules. The representation of subscript 2 of hydrogen and oxygen in the equation states that there are 2 hydrogen atoms and 2 oxygen atoms are present in the equation.
what must differ between the atom of two different elements?
1. protons in the atom 2. electrons in the atom 3. neutrons in the atom 4. protons and neutrons in the nucleus
Answer:
1. protons in the atom
Explanation:
Elements in the periodic table are classified according to their number of protons: this means that each element has a different number of protons with respect to another element. There cannot be two elements having the same proton number.
The number of electrons in a neutral atom is equal to the number of protons, however an atom can loose or gain electrons (becoming an ion), therefore two elements can have the same number of electrons if one of them is an ion.
Moreover, an atom of an element can have different isotopes, which means atoms with same proton number but different number of neutrons: therefore, two elements can have the same number of neutrons in the nucleus.
Therefore, the only correct choice is
1. protons in the atom
Answer:
1. protons in the atom
Explanation:
Elements in the periodic table are classified according to their number of protons: this means that each element has a different number of protons with respect to another element. There cannot be two elements having the same proton number.
The number of electrons in a neutral atom is equal to the number of protons, however an atom can loose or gain electrons (becoming an ion), therefore two elements can have the same number of electrons if one of them is an ion.
Moreover, an atom of an element can have different isotopes, which means atoms with same proton number but different number of neutrons: therefore, two elements can have the same number of neutrons in the nucleus.
Therefore, the only correct choice is
1. protons in the atom
Which are examples of transverse waves? Check all that apply.
The examples of transverse waves are earthquake S waves and Radio waves with visible light and X- rays as the other examples.
Explanation:
The transverse waves are the waves which run perpendicular to direction of the wave. They oscillate at right angle to main wave. They form the crest and troughs which are alternate to each other. All the electromagnetic waves are simply transverse waves as the electric field generated waves are always perpendicular to the magnetic field generated waves.
What is most likely the relationship between Mendel’s rules of genetics and Darwin’s idea of biological evolution?
Answer:
Darwin's theory of natural selection lacked an adequate account of ... Darwinian principles now play a greater role in biology than ever before, .... Sadly, even if Mendel had lived to see the rediscovery of his work, he probably .... evolutionary forces are acting, a genetic equivalent to Galileo's law of inertia.
Explanation:
Answer:
A. Mendel’s genetics states laws that are now part of the theory of biological evolution.
Explanation:
edge 2021 :)
why do metals conduct electricity
Answer: Metals conduct electricity well due to the fact that the outermost electrons in their atoms are held by weak atomic forces, allowing these electrons to flow easily from one atom to another.
Explanation:
3. The diagram to the right shows a Bunsen burner heating a beaker of
water on a beaker stand. The arrows represent the transfer of heat
energy in the water. Which process is primarily responsible for the
transfer of heat indicated by the arrows in the beaker of water?
a. conduction
b. convection
c. radiation
d. condensation
Answer:
I think that the answer is B convection. Heat is transferred by the movement of the water from hotter regions to colder regions.
Answer:
b
Explanation:
if sin 0 equals 5/6 what are the values of cos 0 and tan 0
In a right triangle, the "Sin" of an angle is the ratio of (the leg opposite the angle) to (the hypotenuse of the triangle).
If (sin of the angle) is 5/6, then the angle is in a right triangle where the leg opposite the angle is 5 and the hypotenuse is 6.
The other leg ... the one adjacent to that angle ... is √(6² - 5²).
That's √11 .
-- The (cosine of the angle) is
(leg adjacent to the angle) divided by (hypotenuse of the triangle).
That's √11/6 .
-- The (tangent of the angle) is
(leg opposite the angle) divided by (leg adjacent to the angle) .
That's 5/√11 .
Final answer:
To find cos θ and tan θ, use the Pythagorean identity. For cos θ, calculate √(11/36) and take the positive or negative root based on the quadrant. Compute tan θ by dividing sin θ by cos θ to get 5√11/11.
Explanation:
Given that sin θ equals 5/6, to find the values of cos θ and tan θ, one must remember the Pythagorean identity, which states that sin²(θ) + cos²(θ) = 1. Since we are given sin θ, we can rearrange the identity to solve for cos θ:
cos^2(θ) = 1 - sin²(θ)
cos^2(θ) = 1 - (5/6)²
cos^2(θ) = 1 - 25/36
cos^2(θ) = 11/36
cos θ = ±√(11/36)
cos θ = ±√11/6
To determine the sign of cos θ, we need to know the quadrant in which the angle θ lies. Since sin θ is positive in the question, and assuming the angle is in the first or second quadrant where sin is positive, we choose the positive root if θ is in the first quadrant and the negative root if θ is in the second quadrant. Lastly, tan θ = sin θ / cos θ.
tan θ can then be calculated using the ratio:
tan θ = (5/6) / (√11/6)
tan θ = 5/√11
We can rationalize the denominator to avoid a radical in the denominator:
tan θ = (5/√11) * (√11/√11)
tan θ = 5√11/11
What is the effective resistance between the points A and D? A) 1.3 Ω B) 2.2 Ω C) 10 Ω D) 12 Ω
Answer:
B) 2.2 Ω
Explanation:
First of all, we should notice that the resistor placed between A and B is short-circuited. In fact, the current from point A will follow the wire above between A and C (which has zero resistance), so we can basically ignore the presence of the resistor between A and B, since it has no effect on the circuit.
Then, we can notice that the two resistors between CB and CD are in parallel to each other; therefore, their equivalent resistance is given by:
[tex]\frac{1}{R}=\frac{1}{R_{BC}}+\frac{1}{R_{CD}}=\frac{1}{4.0 \Omega}+\frac{1}{5.0 \Omega}=\frac{9}{20 \Omega}\\R= \frac{20 \Omega}{9}=2.2 \Omega[/tex]
Which imaging techniques capture real-time images? sonography and fluoroscopy radiography and fluoroscopy sonography and CT MRI and CT
Answer:
A. sonography and fluoroscopy (I just took the edg quiz)
The imaging techniques capture real-time images will be sonography and fluoroscopy.
What is sonography and Fluoroscopy?Sonography is a diagnostic medical procedure that uses high-frequency sound waves (ultrasound) to produce dynamic visual images of organs, tissues or blood flow inside the body. This type of procedure is often referred to as a sonogram or ultrasound exam.
fluoroscopy simply serves as an image-guidance tool, and as such, alternative imaging modalities that do not rely on ionizing radiation can and should be considered. For example, as a real-time, high-resolution imaging modality, ultrasound shares many characteristics with fluoroscopy.
However, due to its lack of reliance on ionizing radiation, ultrasound is often the imaging tool of choice for a number of image-guided interventions for which fluoroscopy may also be considered, particularly in the pediatric population.
Hence the imaging techniques capture real-time images will be sonography and fluoroscopy.
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Which statements describe properties of stars? Check all that apply.
Stars produce energy through nuclear fusion.
Stars produce energy through gravity.
Stars are massive objects composed of gas.
Stars are solid objects that we could stand on.
Stars are composed primarily of hydrogen and helium.
Stars are composed primarily of liquids such as water.
Answer:
Stars produce energy through nuclear fusion.Stars are massive objects composed of gas.Stars are composed primarily of hydrogen and helium.Explanation:
Stars are massive objects that have a large gravitational field, which drives the star to contract on itself, which is why fusion occurs: in the center of the star the nuclei of atoms are already so close due to gravity and high temperatures that bind. This is what is called nuclear fusion and is the energy source of a star.
On the other hand yes, the main elements of a star are hydrogen and helium (two hydrogen nuclei fuse to make helium), this makes the star mainly a huge ball of gas so there is no solid surface where you can stand on.
And about water on a star, that is not possible. Temperatures on stars are very vey high that watter could not exist in a liquid form on them.
Stars produce energy through nuclear fusion.
Stars are massive objects composed of gas.
Stars are made primarily of hydrogen as well as helium.
Stars can be regarded as massive objects which contains large gravitational field, that drives the star so as to contract on itself, as a result of this fusion occursAt center of the star there is a nuclei of atoms which are already so close due as a result of gravity as well as high temperatures that bind.the main elements that star is made of are hydrogen and helium, i.e there is fission of two hydrogen nuclei along with helium, As result of this the star is mainly a huge ball containing gasesThere is no water on a star, since there is high temperature on the star and cannot allow water to stay.Stars can be regarded as body which is composed of hydrogen as well as helium, these are been packed so densely in a star
In the star's center there is great pressure that initiate nuclear fusion reactions. Nuclear fusion reaction is the one whereby the nuclei of two atoms comes together to create a new atom.
Therefore, statements that describe properties of stars here Stars produce energy through nuclear fusion is that Stars are been regarded as massive objects which is encompassed gas.
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Superman is flying 54.5 m/s when he sees
a train about to fall into a river 850 m
away. He reaches the train in 4.22 s.
What is his final velocity?
348.34 m/s. When Superman reaches the train, his final velocity will be 348.34 m/s.
To solve this problem, we are going to use the kinematics equations for constant aceleration. The key for this problem are the equations [tex]d=v_{0} t+\frac{at^{2} }{2}[/tex] and [tex]v_{f} =v_{0} +at[/tex] where [tex]d[/tex] is distance, [tex]v_{0}[/tex] is the initial velocity, [tex]v_{f}[/tex] is the final velocity, [tex]t[/tex] is time, and [tex]a[/tex] is aceleration.
Superman's initial velocity is [tex]v_{0}=54.5\frac{m}{s}[/tex], and he will have to cover a distance d = 850m in a time t = 4.22s. Since we know [tex]d[/tex], [tex]v_{0}[/tex] and [tex]t[/tex], we have to find the aceleration [tex]a[/tex] in order to find [tex]v_{f}[/tex].
From the equation [tex]d=v_{0} t+\frac{at^{2} }{2}[/tex] we have to clear [tex]a[/tex], getting the equation as follows: [tex]a=\frac{2(d-v_{0}t) }{t^{2} }[/tex].
Substituting the values:
[tex]a=\frac{2(850m-54.5\frac{m}{s}.4.22s) }{(4.22s)^{2}}=69.63\frac{m}{s^{2}}[/tex]
To find [tex]v_{f}[/tex] we use the equation [tex]v_{f} =v_{0} +at[/tex].
Substituting the values:
[tex]v_{f} =54.5\frac{m}{s} +(69.63\frac{m}{s^{2}}.4.22s)=348.34\frac{m}{s}[/tex]
The final velocity is found to be approximately 349.07 m/s.
To determine Superman's final velocity when he reaches the train, we need to use the kinematic equations for uniformly accelerated motion. Given:
Initial velocity (u) = 54.5 m/sTime (t) = 4.22 sDistance traveled (s) = 850 mFirst, we can use the kinematic equation:
s = ut + (1/2)at²where s is the distance, u is the initial velocity, t is time, and a is the acceleration. Plugging in the known values:
850 = 54.5 × 4.22 + 0.5 × a × (4.22)²Simplifying this:
850 = 229.29 + 0.5 × a × 17.8084850 - 229.29 = 8.9042a620.71 = 8.9042aa = 620.71 / 8.9042a ≈ 69.69 m/s²Now, we use another kinematic equation to find the final velocity (v):
v = u + atv = 54.5 + (69.69 × 4.22)v = 54.5 + 294.57v ≈ 349.07 m/sTherefore, Superman's final velocity when he reaches the train is approximately 349.07 m/s.
a train travels 74 kilometers in 1 hours, and then 83 kilometers in 5 hours. what is its average speed
Total distance traveled = 74 + 83 = 157 km.
Total time traveled = 1 + 5 = 6 hours.
Average speed = total distance / total time
Average speed = 157 km / 6 hours = 26.1666 km per hour.
Round the answer as needed.
The ratio of electrostatic force between two electrons to gravitation
force between them is of the order
A) 10
C) 10^3
B)1
D) 10^42
Answer:
D) 10^42
Explanation:
The electrostatic force between two electrons is given by
[tex]F_E = \frac{k q^2}{r^2}[/tex]
where
k is the Coulomb's constant
q is the electron charge
r is the separation between the electrons
The gravitational force between two electrons is
[tex]F_G = \frac{G m^2}{r^2}[/tex]
where
G is the gravitational constant
m is the electron mass
r is the separation between the electrons
So the ratio between the two forces is
[tex]\frac{F_E}{F_G}=\frac{k q^2}{G m^2}=\frac{(9\cdot 10^9 Nm^2 C^{-2} )(1.6 \cdot 10^{-19}C)^2}{(6.67\cdot 10^{-11}m^3 kg^{-1}s^{-2})(9.11\cdot 10^{-31} kg)^2}=4.2\cdot 10^{42}[/tex]
Looking at the electroscope, describe how you can cause the two leaves at the bottom to repel each other and stay that way.
A) Bring a positive and negative object near the top.
B) Bring a negative object near the top.
C) Bring a positive object near the top.
D) Touch the electroscope with any charged object.
Answer:
D) Touch the electroscope with any charged object.
Explanation:
D) Touch the electroscope with any charged object.
The electroscope functions on the presence of charge therefore to repel the two leaves away any charged object will be helpful.
Answer: Option D
Explanation:
The electroscope is a device which functions to detect the charge on the given object. When the two leaves in the electroscope are normally placed, shows no charge is present.
To repel away the leaves, presence of charge is important and therefore when a charged body touches the electroscope, by the induction of opposite charge develops in the electroscope by which the leaves gets similar charges and hence repels away.
What statement explains the changes from wave A to wave B?
Answer:
the correct answer is a)
Explanation:
The changes from wave A to wave B can be explained by the difference in their characteristics. Line A is a decreasing line, and line B is an increasing line, with line A being much steeper than line B.
Explanation:The changes from wave A to wave B can be explained by the difference in their characteristics. Line A is a decreasing line, indicating a decrease in amplitude or intensity, while line B is an increasing line, indicating an increase in amplitude or intensity. The steepness of line A is greater than that of line B. This change in amplitude and steepness represents the change from wave A to wave B.
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solve the system of equations
-4x + 11y =15
x=2y
x=____
y=____
someone help please!
Answer:
x=10, y=5
Explanation:
-4x + 11y = 15
x = 2y
Use substitution:
-4(2y) + 11y = 15
-8y + 11y = 15
3y = 15
y = 5
Now find x:
x = 2y
x = 2(5)
x = 10
Does he accelerate as he is being pushed?
Answer:
yes, I would believe so.
Explanation:
Acelerating means moving, picking up speed...etc and well he is being pushed so he's moving.
Hope my answer has helped you!
Explain, briefly, what the electrical field inside a microwave oven does to heat food.
Answer:
Inside the strong metal box, there is a microwave generator called a magnetron. When you start cooking, the magnetron takes electricity from the power outlet and converts it into high-powered, 12cm (4.7 inch) radio waves. Thus the microwaves pass their energy onto the molecules in the food, rapidly heating it up.May 3, 2018
A microwave oven heats food by producing microwaves that exert force on polar molecules such as water, causing them to rotate rapidly. This rapid rotation increases their thermal motion, producing heat. The heat then spreads to other components of the food, successfully heating the food overall.
Explanation:The electrical field inside a microwave oven plays a fundamental role in heating food. This process works by producing microwaves which are electromagnetic radiation in the radio portion of the spectrum. Microwaves in a microwave oven usually operate at a frequency of 2.45 GHz.
Water molecules and some other constituents in food are known as polar molecules because they have a slight negative charge at one end and a slight positive charge at the other. These microwaves primarily interact with water molecules in the food. The oscillating electrical field of the microwaves exerts a force or torque that aligns these molecules first in one direction and then in the other, making them rotate rapidly.
This rapid rotation pumps energy into the thermal motion of the water molecules, which results in increased temperature or heat. This process is known as dielectric heating. The heat then spreads to other components of the food, heating the food overall. Therefore, the food becomes hot quickly.
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What electrons are involved in bonding between atoms? (What are they called)
Answer:
The answer is Valence
Explanation:
I hope me putting the answer instead of a paragraph helps yall<3
Valence electrons, which are located in the outermost shell of an atom, participate in the formation of chemical bonds with other atoms.
Explanation:The electrons that are involved in bonding between atoms are known as 'valence electrons'. These electrons are situated in the outermost shell or energy level of an atom. Their role is extremely essential as they partake in the formation of chemical bonds with other atoms. For instance, in the bonding of two hydrogen atoms to form a hydrogen molecule (H2), each atom provides one electron to form a single covalent bond.
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a constant force of 10n is applied for 3 seconds to an 8kg object. calculate the change in speed
Answer:
3.75
Explanation:
F= m×a
F=m×(Vf-Vi)/t
10=8×(change in speed)/3
(10×3)÷8=3.75