The following depict the letters X, Y and Z
X: A larger nucleus formsY: Large amounts of energy are releasedZ: Smaller nuclei formWhat is fusion and fission?Fusion refers to a situation in which two light nuclei come together to form a heavier nucleus. Fission refers to the disintegration of a nucleus by the bombardment of a particle.
The portions that show the letters marked X, Y and Z are;
X: A larger nucleus formsY: Large amounts of energy are releasedZ: Smaller nuclei formMissing parts:
Roberto makes a graphic organizer to compare fusion nuclear reactions and fission nuclear reactions. A venn diagram with 2 intersecting circles The circle on the left is labeled fusion. The circle on the right is labeled fission. There is a Z in the fission circle. There is an Y in the intersecting area. There is an X in the fusion circle. Which labels belong in the regions marked X, Y, and Z?
OX: Smaller nuclei form
Y: Thermal energy is produced
Z: A larger nucleus forms
OX: Large amounts of energy are released
Y: One or more neutrons is released
Z: Smaller nuclei form
OX: One or more neutrons is released
Y: A larger nucleus forms
Z: Large amounts of energy are released
OX: A larger nucleus forms
Y: Large amounts of energy are released
Z: Smaller nuclei form
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Answer: D
Explanation: I just took the exam review in edge 2022 and got it right
13. in batesian mimicry, a palatable species gains protection by mimicking an unpalatable one. imagine that individuals of a palatable, brightly colored fly species are blown to three remote islands. the first island has no predators of that species; the second has predators but no similarly colored, unpalatable species; and the third has both predators and a similarly colored, unpalatable species. in a short essay (100-150 words), predict what might happen to the coloration of the palatable species on each island through evolutionry time if coloration is a genetically controlled trait. explain your predictions.
Batesian mimicry is an adaptive feature associated with the coloration of a given species in a given environment.
What is Batesian mimicry?Batesian mimicry can be defined as a type of adaptive feature associated with the coloration of a particular species and/or population.
On the first island, the color of the population won't change because of the absence of predators.
On the second island, the color of the population will change because of the presence of predators that can be alerted by the color.
On the third island, the color of the population won't change because of the presence of a species with a similar color.
In conclusion, Batesian mimicry is an adaptive feature associated with the coloration of a given species in a given environment.
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A spinning satellite begins to fold two solar panels inward as shown. How does satellite's angular velocity change as the panels fold in completely?
A. It remains constant.
B. It increases.
C. It drops to zero.
D. It decreases.
1. A person of mass 55 kg is in a bumper car that has a mass of 75 kg. They are together at a velocity of 8 m/s.
a. what's the total momentum of the system
b. what is the momentum of the bumper car after the collision? did it change directions? how do you know?
The momentum of the bumper car after the collision is 1,040 kgm/s.
Momentum of bumper
The change in momentum of the bumper is calculated as follows;
P = v(m1 + m2)
P = 8(55 + 75)
P = 1,040 kgm/s
The momentum of the bumper car after the collision is 1,040 kgm/s.
The direction is still the same.
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Which type of error is a false positive
Answer: Type I Error
5.
A device known as the nMRI, or nuclear magnetic resonance imager, often called an MRI for simplicity, is used for what purpose?
A to generate electricity
B to apply lasers to precision measurements of the nucleus
C to create an image of objects inside other objects
D to measure geologic pressures deep underground in volcanically active regions
Answer:
C. to apply lasers to precision measurements of the nucleus
Explanation:
Magnetic resonance imaging (MRI) is based on the principles of nuclear magnetic resonance (NMR), a spectroscopic technique used to obtain microscopic chemical and physical information about molecules.
A 2.0-ohm resistor and a 4.0-ohm resistor are connected in series with a 12-volt battery. If the current through the 2.0-ohm resistor is 2.0 amperes, the current through the 4.0-ohm resistor is
Answer:
2.0 A
Explanation:
Current through series-connected components is the same.
__
If the components are connected in series, and the current through one of them is 2.0A, then the current through the other is also 2.0A.
The current through the 4.0 Ω resistor is 2.0 A.
Your'e at your new high school.....You go into the bathroom and there's students smoking in there. I mean like a real smoke fest. Some of them you know, most you don't as your'e the new freshman. Suddenly, the school security barges in to take everyone who's in the bathroom to the principal's office. You on the other hand was just trying to use the bathroom and never got to lol! You and everyone in the bathroom end up in the office about to get in big trouble. What do you do?
Answer:
Just get searched then go back to class
Explanation: similar situation
what is the triboelectric effect?
Answer:
The triboelectric effect is an electrical phenomenon where certain materials become electrically charged after coming into contact with another, different, material. The polarity and strength of the charges produced differ according to material and surface smoothness.
Explanation:
The triboelectric effect causes an electrostatic charge to build up on the fur due to the cat's motions. The electric field of the charges results in a slight attraction of the light plastic pieces to the charged fur. The triboelectric effect is also the cause of static cling in clothes.
I hope this helps, if it doesn't then just message me and ill be more than happy to help :)
Why is it making me do this
Answer:
I don't know.
Explanation:
I have no idea what you are referring to.
L 6.3.2 Test (CST): Applications of Waves Question 5 of 10 Which event provides evidence that matter can reflect waves? O A. An audience member covers her ears during a loud concert. B. A laser beam bounces off a series of mirrors. C. A performer makes shadow puppets on a wall. D. The light from a fireworks show is seen miles away.
An audience member covers her ears during a loud concert shows evidence that matter can reflect waves.
Which event provides evidence that matter can reflect waves?An audience member covers her ears during a loud concert is an event that provides evidence that matter can reflect waves because a sound is heard again and again due to the reflection of waves. This repetition of sound is due to the property of reflection of sound waves.
So we can conclude that an audience member covers her ears during a loud concert shows evidence that matter can reflect waves.
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Answer:
A laser beam bounces off a series of mirrors
Explanation:
what is matter made of
Answer:
Atoms
Explanation:
Answer:
All matter is made up of atoms. Atoms come together to form molecules, which are the building blocks for all types of matter.
Explanation:
0.2 kg coffee cup is sitting on desk. acceleration due to gravity is 9.8m/s^2 what is the force downward exerted
[tex]~~~~~~~F = mg\\\\\implies F = 0.2 \times 9.8\\\\\implies F = 1.96~N\\\\\text{The downward force is 1.96 N.}[/tex]
What is the relative size and composition of the universe, a galaxy, and a solar system?
The solar system is smaller than a galaxy. Galaxies are composed of solar systems. The solar system is composed of planets revolving around a star (such as our sun). To put into perspective, there are about hundreds of billions of stars in our galaxy (the milky way). On the other hand, billions of galaxies make up the universe.
The speed of light is constant which is 299 792 458 m / s. The time is taken for light to reach an object can be used to measure the distance between objects in space. This is done by multiplying the time by the speed of light.
Distance in space is so vast and therefore impractical to use the basic SI units of meters and kilometers we use here on earth. Therefore the use of astronomical units and light years is used. Light years is the distance that light can cover in a year in the vacuum of space, while astronomical units is the distance between solar systems.
A 2000-kg ore car rolls 50 meters down a smooth 10o incline. There is a horizontal spring at the end of the incline designed to stop the car in case of break failure. What is the spring constant of the spring if it would compress by 1 m to stop the ore car?
The spring constant of the spring if it would compress by 1 m to stop the ore car is 340,350.4 N/m.
Potential energy of the carThe potential energy of the car is calculated as follows;
P.E = mgh
where;
h is the vertical height of the inclinesin (10) = h/L
h = L x sin(10)
P.E = mgLsin(10)
P.E = 2000 x 9.8 x 50 x sin(10)
P.E = 170,175.21
Conservation of energyThe potential energy of the car at the top of the incline will be converted to the elastic potential energy spring at the bottom of the incline.
P.E = U = ¹/₂kx²
k = (2U)/x²
k = (2 x 170,175.2)/(1)²
k = 340,350.4 N/m
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Use the information from the graph to answer the question.
A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 12, velocity in meters per second on the y axis, numbered 0 to 45. A line starts at (0, 40) and ends at (12, 10).
What is the acceleration of the object?
Answer:-2.5m/s^2
Explanation:
facts
The acceleration of the object would be -2.5 m/s², the negative sign represents the deaccelerating motion of the object.
What is acceleration?The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².
acceleration =change in velocity/change in time
The slope of the velocity time graph represents the acceleration of the object.
The slope of the graph = change in the y coordinates (velocity)/ change in the x coordinate (time)
The slope of the graph =( 10-40)/( 12-0)
= -2.5 m/s²
Thus, the acceleration of the object comes out to be -2.5 m/s².
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Two bulbs connected in
parallel shine more brightly than when they
are connected to the same voltage source in
series. explain why this doesn't violate the law
of conservation of energy.
Explanation:
Explain why this doesn't violate the law of conservation of energy.
The bulbs shine less brightly in a parallel because the charges
are flowing to more than one place, distributing the charge
evenly between the two bulbs. Less charge is going to each bulb
since it is going two places, so they will appear less bright
what do you mean by potential energy of an object is 60J
Answer:
60Joules
Explanation:
Potential energy is the amount of 'work done' on an object, by changing it's position.
The formula is gravitational Potential energy= mass (kg) × gravity (Newtons) × height (m)
Large rock rest on ground weight of rock is 8000n write down the size of contact force from the ground
The size of contact force from the ground is determined as 8000 N.
Size of contact force
According to Newton's third law of motion, action and reaction are equal and opposite.
The size of contact force from the ground is equal to the weight of the rock and it is calculated as follows;
Fd = Fn
Fd = 8000 N
Thus, the size of contact force from the ground is determined as 8000 N.
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Which resistors in the circuit must have the same amount of charge passing through each second?
Answer:
Resistors C' and D'
Explanation:
Gravitation always does negative work. question 48 options: true false
The statement indicating that 'Gravitation always does negative work' is FALSE.
What is Gravitation?Gravitation is a fundamental physical force that makes objects attract each other in the Universe.
This force (Gravitation) is required to maintain both constant positions and movement of objects.
In conclusion, the statement indicating that 'Gravitation always does negative work' is FALSE.
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Answer:false
Explanation:
True or false: Scientific models are always built to scale, and are fully functional representations of the product they are testing.
Answer:
False
Explanation:
Scientific models are not always built to scale and may not be fully accurate
What is the ratio v1/v2 of the speed of the comet at position 1 to the speed at position 2
The ratio v1/v2 of the speed of the comet at position 1 to the speed at position 2 will be the ratio of the angular velocity.
What are comets ?Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices.
It should be noted that the tangential speed can alternatively be represented as;
[tex]\rm v_t= r\frac{d\theta}{dt}[/tex]
where,
θ is the comet's position angle with respect to some given direction.
The amount dθ/dt is known as angular speed
The ratio v1/v2 of the speed of the comet at position 1 to the speed at position 2 IS;
[tex]\rm \frac{v_1}{v_2} = \frac{\frac{d \theta_1}{dt_1} }{\frac{d \theta_2}{dt_2} } \\\\\ \frac{v_1}{v_2} =\frac{\omega_1}{\omega_2}[/tex]
Hence,the ratio v1/v2 of the speed of the comet at position 1 to the speed at position 2 will be the ratio of the angular velocity.
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A series circuit consists of a switch, a 6-v battery, a lightbulb, and some copper wire. Whenever the circuit is turned on, each of these elements has the same
Whenever the circuit is turned on, each of these elements has the same current through it. The correct option is A.
The current is stream of charges flowing through circuit from the positive terminal to the negative terminal of the voltage source.
A series circuit consists of a switch, a 6-v battery, a lightbulb, and some copper wire. The circuit has the current I flowing in it. Light bulb will act as resistor. When the circuit is on, current will flow through the entire circuit and its elements starting from the positive terminal of battery to the negative terminal of battery.
Thus, whenever the circuit is turned on, each of these elements has the same current through it. The correct option is A.
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A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its
kinetic energy?
OA. 200 J
OB. 100 J
OC. 40 J
OD. 20 J
The kinetic energy of a bowling ball moving at speed is 100 J. The correct option is B.
What is kinetic energy?The kinetic energy of an object is associated with its motion. It can be related to the mass and velocity as
K.E = 1/2 mv²
Given is the Mass of a bowling ball, m =8 kg and Velocity of a baseball, v = 5 m/s
substitute the values, we have
K.E = 1/2 x 8 x (5)²
K.E = 100 J
Hence, the kinetic energy of the bowling ball is 100 J.
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These waves are needed for green plants to grow.
-microwaves
-X-rays
-infrared
-ultraviolet
-radio
-visible
-gamma rays
Answer:
visible waves are needed for green plants to grow.
Explanation:
During photosynthesis, chlorophyll absorbs energy from blue- and red-light waves, and reflects green-light waves, making the plant appear green.
Which of these is true about analog signals?
1. They can capture the entire sound wave when a song is recorded on a vinyl record, resulting in a Fuller and more accurate representation of the original song.
2. A vinyl record (analog) can hold more information than a CD (digital)
3. The sound quality does not degrade when copying a vinyl record (analog) like it does for CD (digital)
PLEASE HELP LOL, I NEED TO SUBMIT THIS BEFOFE MY SCHOOL YEAR ENDS -_-
The statement true about the analog signal is they can capture the entire sound wave when a song is recorded on a vinyl record, resulting in a Fuller and more accurate representation of the original song.
What are analog signals?The analog signals are discrete in nature.
Sound can be recorded, stored and played by the use of either digital or analog techniques.
Vinyl records produces a continuous sound wave vs CDs. So, analog is more accurate,
Thus, correct option is 1.
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Does the amount of fuel depend on how fast water heats?
Answer:
yes
Explanation:
because when the water is heating up you use more fuel than you do when it is cold
- A straight wire, 0.20 m long, moves at a constant speed of 7.0 m/s
perpendicular to a magnetic field of strength 8.0×10-2 T.
A. What EMF is induced in the wire?
B. What is the direction of the induced current?
C. Determine the polarity of point A and point L
D. The wire is part of a circuit that has a resistance of 0.50 Ω. What is the
current through the wire?
(a) The emf induced in the wire is 0.112 V.
(b) The direction of the current will into the page.
(c) The polarity of A will be positive and L will be negative.
(d) The current flowing through the wire is 0.224 A.
EMF induced in the wireThe emf induced in the wire is calculated as follows;
EMF = BLv
EMF = (8 x 10⁻²) x 0.2 x 7
EMF = 0.112 V
Direction of the currentSince, the magnetic field is out of the page, the current will follow counter clockwise and will point into the page.
Polarity of point A and point LThe current is flowing counter currently, hence the polarity of A will be positive and L will be negative.
Current through the wireV = IR
I = V/R
I = (0.112)/0.5
I = 0.224 A
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What can be described as a technology that uses high-frequency sound waves to create images?
Answer:
Ultrasound imaging (sonography) uses high-frequency sound waves to view inside the body.
Explanation:
Which of the following desribes a displacement vs. time graph that looks like
this?
Time
A. constant non-zero acceleration
B. increasing velocity
C. constant velocity
D. decreasing acceleration