Answer :
O B. One shows 11 neutrons, and one shows 12.
is correct
I just took the quiz <3
If the isotope models are accurate, one will show 11 neutrons, and one will show 12.
What are isotopes?Isotopes are two or more types of atoms that have the same atomic number but different mass numbers.
Based on the models of two different neutral isotopes of sodium sketched by Jesus, we can conclude the following about isotopes of sodium;
One of the isotope shows 11 neutrons, and the one shows 12.
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Jeremy walked at an average rate of speed of 5 km/h. how far had Jeremy walked in 15 minutes?
Answer:
1 half kilometer is right answer
If you go to Mars would you be heavier or lighter
Answer:
I mean you could just look it up... but here the answer for you ,so you know it's right...
Explanation:
:)
NEED ANSWER ASAP
Common topics of physics include:
a forms of energy
b sound
C magnetism
d evolution
Answer:
a
Explanation:
Answer:
C
Explanation:
C
The Washington monument in our nations capital is 169 m high. What would be the speed of the penny as it hit the ground?
Some chemical reactions release energy. Others store energy. What important chemical reaction stores energy?
A 2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm. The image is 8 cm from the lens.
The height of the image, to the tenths place, is
cm.
Answer:
-1.6
Explanation:
e2021
The Height of an Image for a Convex Mirror is calculated by using magnification equation
m = h(i) / h(o) = − d(i) / d(o) ,where
the magnification index of the mirror, m
the height of the object, h(o)
the height of the image, h(i)
the distance between the object and the mirror, d(o)
the distance between the image and the mirror, d(i)
h(i)/ 2 = -8 / 10
h(i) = -1.6 cm.
What is convex mirror ?"Convex Mirror is a curved mirror where the reflective surface bulges out towards the light source. This bulging out surface reflect light outwards and are not used to focus light."
What is magnification equation ?"The formula for magnification is m=h(i)/h(o)=-d(i)/d(o). m is the total magnification; h(i) is the height of the image; h(o) is the height of an object; d(i) is the distance from the lens to the in focus projected image; d(o) is the distance of the object to the lens. The negative sign represents that the image is inverted."
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Plz help 200 pts
In the movie Black Panther, Wakanda's economy focuses on the production and use of a fictional metal known as vibranium, which has amazing chemical and physical properties. If this metal actually existed, where do you think the metal would be placed in the periodic table? What would be the elemental symbol?
Answer:
We just know that the metal is called Vibranium.
to place something is the table we need to know its atomic number and its mass. so if we can get that we can ans it.
Explanation:
What does an element's group number tell you about an element's chemical and physical properties ?
Which object has a stronger
gravitational pull to the Earth,
a bicycle or an elephant?
Which of the following is NOT true about the relationship between electricity and magnetism?
A O All magnets are surrounded by an electric field.
B.
Generators use magnets to induce an electric current.
Motors use electric currents to generate an electric field.
D. A magnetic field can be used to generate an electric current.
In handball, who is the only player allowed in the goalie area?
Answer:
Only the goalie is allowed inside the goal crease. The only exception when another player is allowed in the goal area is when they take off from outside the goal area, and shoots or passes the ball before landing. To avoid interference with other players, the player must then exit the goal area as soon as possible.
Explanation:
A particle with charge q on the negative x axis and a second particle with charge 2q on the positive x axis are each a distance d from the origin. Where should a third particle with charge 3q be placed so that the magnitude of the electric field at the origin is zero? (Use any variable or symbol stated above as necessary.)
Answer:
The charge 3q must be placed at a distance of 1.73d away from the origin.
Explanation:
The electric field at the origin due to q at distance, d from the origin is E = q/4πε₀d².
The electric field at the origin due to 2q at distance, d from the origin is E' = -2q/4πε₀d². (It is negative since it its directed towards the negative x-axis)
Now, the net electric field at the origin due to both charges is thus E" = E + E' = q/4πε₀d² + (-2q/4πε₀d²) = q/4πε₀d² - 2q/4πε₀d² = -q/4πε₀d².
The electric field due to 3q at a distance x from the origin is E₁ = 3q/4πε₀x².
Now, the net electric field E' must cancel out E₁ so that the electric field at the origin is zero.
So, E' + E₁ = 0
E' = -E₁
-q/4πε₀d² = -3q/4πε₀x²
1/d² = 3/x²
taking inverse of both sides, we have
x²/3 = d²
multiplying both sides by 3, we have
x² = 3d²
taking square root of both sides, we have
x = (√3)d
x = ±1.73d
So, the charge 3q must be placed at a distance of 1.73d away from the origin.
Calculate the horizontal force that must be applied to a 1,300 kg vehicle to give it an acceleration of 2.6 m/s² on a level road.
500 N
3,380 N
1,302.6 N
0.002 N
The horizontal force must be applied to a vehicle of mass 1300 kg and of acceleration of 2.6 m/s² will be 3380 N. Hence, option B is correct.
What is Acceleration?The rate of change in an object's velocity concerning time is known as acceleration in mechanics. The vector quantity of accelerations. The direction of the net force that is acting on an object determines its acceleration.
Since acceleration has both a magnitude and a direction, it is a vector quantity. Velocity is a vector quantity as well.
According to the question, the given values are :
Mass, m = 1300 kg
Acceleration, a = 2.6 m/s²
Force = 1300 × 2.6 m/s²
F = 3380 N.
So, the force applied will be, 3380 N.
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7. An object with a weight of 19.6 N moves with a constant velocity of 20.0 m/s. A net
force of 6.00 N is applied to the object in the direction of its motion for 4.00 seconds.
What is the final momentum of the object?
Answer:
118.4kgm/s
Explanation:
Given parameters:
Weight of object = 19.6N
mass of object = 19.6/9.8 = 2kg
Constant velocity = 20m/s
Force applied = 6N
Time taken = 4s
Unknown:
Final momentum of the object = ?
Solution:
To solve this problem, we use Newton's second law of motion;
Ft = m (v - u)
F is the force applied
t is the time taken
m is the mass
v is the initial velocity
u is the time taken
Ft = mv - mu
mv is the final momentum;
So;
Final momentum = Ft + mu
Final momentum = (19.6 x 4) + (2 x 20) = 118.4kgm/s
A molecule contains 16 atoms and undergoes a chemical change. How does the
chemical change affect the total number of atoms of each element? (2 points)
Answer:
They remain the same
Explanation:
As the molecule goes from reactants to products, the number of atoms in the each of the element remains the same.
This is in compliance with law of conservation of matter. The law proposes that "in a chemical reaction, matter is neither created nor destroyed by changed from one form to another".
So, since no matter is destroyed, the number of atoms during a chemical change remains the same before and after a reaction.
This is applicable to all chemical changes.
If an engine can produce 670 J of energy in 1 min, how many watts can it output?
Answer:
11.2Watts
Explanation:
Given parameters:
Energy produced by the engine = 670J
Time taken = 1min = 60s
Unknown:
Number of watts it can output = ?
Solution:
This problem entails finding the power of the engine.
Power is the rate at which work is being done.
So;
Power = [tex]\frac{Work done }{time}[/tex]
Power = [tex]\frac{670}{60}[/tex] = 11.2Watts
Which explanation BEST supports Newton's second law of motion which states that force = mass x acceleration?
Object Y will accelerate the fastest because it has the largest mass.
Object V will accelerate the slowest because it has the smallest mass.
Object Y will require the most force to move because it has the largest mass.
Object V will require the most force to move because it has the smallest mass.
The force of attraction that holds two atoms together within a molecule is
Answer: Chemical bond
Explanation: This force is of an electric nature, and the attraction between electrons of one atom to the nucleus of another atom contributes to what is known as chemical bonds.
PLEASE SOMEONE HELP!!! ANSWER IF YOU KNOW PLEASE!!! LOTS OF POINTS!!!
Answer:
i think that magnet can cause kinetic because
it is made of iron or steel that attract other magnetic things
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Wave A is being decreased in temperature, and Wave B is moving from a liquid to a gas medium.
Which statement can be made about both waves?
They will speed up.
They will increase the density of their medium.
They will slow down.
They will decrease the density of their medium.
Answer:b
Explanation:
Answer:
B
Explanation:
edg
A 4 kg object is moving at a speed of 5 m/sec. How much kinetic energy does the object have? A. 10 joules B. 20 joules C. 50 joules D. 100 joules
Answer:
A. 10 joules
Explanation:
Given parameters:
Mass of object = 4kg
Speed = 5m/s
Unknown:
Kinetic energy of the the object = ?
Solution:
Kinetic energy is the energy due to a moving body.
So;
mathematically;
K.E = [tex]\frac{1}{2}[/tex] x m v²
m is the mass
v is the velocity
K.E = [tex]\frac{1}{2}[/tex] x 4 x 5 = 10J
The kinetic energy of the given moving object is 50 J. The Kinetic energy of an object is the energy due to its motion.
What is Kinetic energy?The Kinetic energy of an object is the energy due to its motion. It can be given as
[tex]KE = \dfrac 12 mv^2[/tex]
Where,
[tex]m[/tex] - mass = 4 kg
[tex]v[/tex] - velocity = 5 m/sec.
Put the values in the formula,
[tex]KE = \dfrac 12 4 \times 5^2\\\\KE = 50 \rm \ J[/tex]
Therefore, the kinetic energy of the given moving object is 50 J.
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what voltage produces a current of 100 amps with a resistance of 50 ohms
[tex] \sf• \: Current \: (I) = 100 \: Amps.[/tex]
[tex] \sf• \: Resistance \: (R) = 50 \: ohms[/tex]
[tex] \\ [/tex]
[tex]\bf{ \underline{To \: Find:- }}[/tex][tex] \sf• \: Voltage \: (V)[/tex]
[tex] \\ [/tex]
[tex] \huge\bf{ \underline{Solution:- }}[/tex]
[tex] \bf \red{ \bigstar{ \: The \: formula \: of \: Voltage \: (V) = IR}}[/tex]
[tex] \rightarrow \sf V = 100 \times 50[/tex]
[tex] \rightarrow \sf V = 5000[/tex]
[tex] \\ [/tex]
[tex] \bf \purple{Therefore, \: Volatage \: is \: 5000 \: v.}[/tex]
A chunk of beef has a mass of 11.6 grams and a volume of 58 cm3. What is the density of the chucky beef?
Group of answer choices
46.4
0
672.8
0.2
5
Answer:
0.2g/cm³
Explanation:
Given parameters:
Mass of the beef = 11.6g
Volume = 58cm³
Unknown:
Density = ?
Solution:
Density is the mass per unit volume of a substance.
Density = [tex]\frac{mass}{volume}[/tex]
So;
Density = [tex]\frac{11.6}{58}[/tex] = 0.2g/cm³
The orbit of Venus around the sun is more sharply curved than the orbit of Mars. Use one of Newton's laws to explain this
Answer:
gravity it's what keeping it to rotate and keeping it looping
Which force is an attractive force that is affected by the masses of objects?
A) tension force
B) magnetic force
C) normal force
D) gravitational force
Class: Physical Science B
Answer:
D) gravitational force
Describe the shape of a field created by a bar magnet
Answer:
its circular
Explanation:
help please fast + i dont want an answer from g**gle .
what force acts between earth and the moon
Explanation:
Gravity
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).
name the universal force of attraction that exists between masses
Answer:
gravity
Explanation:
Answer: gravity
Explanation: Newton's revolutionary idea was that gravity is universal - ALL objects attract in proportion to the product of their masses. Gravity is universal.
Is a violin and battery potential energy?
Explanation:
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object that depends on its mass and its distance from the center of mass of another object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The battery is storing the energy but give it something to power and it'll give its energy to the object and a violin strings are like ruber band and if you play the violin it releases a new type of energy sound energy.
