Answer:
Nope
Explanation:
No. Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.
2. Why is natural selection a mechanism for biological change?
Answer:
Natural selection is a simple mechanism that causes populations of living things to change over time. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success.
when light falls obliquely, there is a change in direction as it moves from one medium to another but when it falls perpendicular to the surface , there is no change in direction even when two mediums are involved JUSTIFY
Answer:
wait in comments....................
An object is at rest on a tabletop. Earth pulls downward on this object with a force equal in magnitude to mg. What is the interaction pair to this force
Answer:
normal contact force
Explanation:
that is the equal and opposite force (as to weight) applied by the table on to the object.
The gravitational force of the earth on the object and the reaction force of the table on the object interact as a pair of forces.
What does gravity mean?The gravitational force is what pulls things with mass in the same direction. People commonly think about the Earth's gravitational pull. Your body is kept on the ground by this force. Yet, gravity pulls all objects with mass in the same direction.
The gravitational force, or g, is the force that the earth exerts on an object, with g equal to 9.8 m/s2.
The information is ,
Place something on the table.
Now that the item is at rest, a force known as gravitational force pushes it downward from the Earth.
The formula for gravitational force is F = mg, where m is the object's mass.
Moreover, Newton's third law states that every action will always have a corresponding and opposing reaction. When the gravitational force acting between two masses is equal in strength and conducted in the opposite direction, an action and reaction pair is produced.
The reaction force is then given by R = -mg, where m is the object's mass and the negative sign denotes that the force is acting in the opposite direction to that of gravity by earth.
Hence , the interaction pair for gravitational is the reaction force
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A police car siren emits a
frequency of
2010 Hz when stationary. Another car
hears a 1920
1920 Hz sound when it drives
away from the stationary police car.
How fast is the second car driving?
Answer: 15.35 m/s
Explanation: 15.35 m/s
[tex]$$From the Doppler effect$$f^{\prime}=\left(\frac{v \pm v_{0}}{v \pm v_{s}}\right) f_{s}$$[/tex]
[tex]\begin{aligned}&f^{\prime}=1920 \mathrm{~Hz} ; \ \ V=343 \mathrm{~m} / \mathrm{s} \\&f=2010 \mathrm \ \text{{H}z} \\&V_S=0 \text { As police car is stationary }\end{aligned}[/tex]
[tex]\begin{aligned}1920 &=\left(\frac{343 \pm v_{0}}{343}\right) \times 2010 \\1920 &=\left(\frac{343-v_{0}}{343}\right) \times 2010 \\ -v_{0} &=-15.35 \mathrm{~m/s} \\v_{0} &=15.35 \mathrm{~m} / \mathrm{s}\end{aligned}[/tex]
Therefore, the second car is driving at 15.35 m/s
In what part of the Milky way is our solar system located?
A) thick disk
B) thin disk
C) extreme disk
D) galactic halo
Answer:
D
Explanation:
I got it right
_________ quantities are measured with numbers and units, but also have a specific direction.
Answer:
Vectors
Explanation:
Vector quantities have magnitude and direction in a given vector space or field
Assuming the radius of diatomic molecules is approximately 2.3 ×10-10 m for what pressure in Pa will the mean free path in room-temperature (20°C) nitrogen be 0.027 m? The Boltzmann constant is 1.38 × 10-23 J/K, Avogadro’s number is 6.02 × 1023 molecules/mole, and the ideal gas constant is R = 8.315 J/mol•K = 0.0821 L ∙ atm/mol ∙ K.
For a radius of diatomic molecules is approximately 2.3 ×10-10 m, the pressure in Pa is mathematically given as
P=0.134Pa
What pressure in Pa will the mean free path in room-temperature (20°C) nitrogen be 0.027 m?Generally, the equation for the ideal gas is mathematically given as
PV=nRT
Therefore
[tex]P=\frac{1kT}{\sqrt{2}\pi(p)d^2}[/tex]
[tex]P=\frac{1.38*10^-23*293}{\sqrt{2}\pi*(2*1.3*10^{-10})^2)*0.1}[/tex]
P=0.134Pa
In conclusion, Pressure
P=0.134Pa
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What is the function (job) of the genes in protein synthesis (how proteins are made in the cell)?
Answer:
Most genes contain the information needed to make functional molecules called proteins. A few genes produce regulatory molecules that help the cell assemble proteins.
To build proteins, cells use a complex assembly of molecules called a ribosome. The ribosome assembles amino acids into the proper order and links them together via peptide bonds. This process, known as translation, creates a long string of amino acids called a polypeptide chain.
Explanation: Hope it helps you :)))))
Have a good day
On top a coiled spring labeled wave a with coils, which are widely spaced then tightly spaced then widely space. on bottom a coiled spring labeled wave b with coils, which are widely spaced then very tightly spaced then widely space. which statement can be made about waves a and b? wave a has a lower amplitude than wave b. wave a has a higher amplitude than wave b. wave a has a lower frequency than wave b. wave a has a higher frequency than wave b.
Answer:
Wave A has a lower frequency than Wave B.
Explanation:
Frequency is the number of waves passing through the unit time.
As the statement of the question says that the coils in wave A are widely and tightly spaced.
While in wave B the coils are widely and very tightly spaced which means the number of coils is more and the frequency of wave B is more than wave A.
Therefore more coils will pass through a fixed point in unite time and more will be the frequency.
Answer:Wave A has a lower frequency than Wave B.
Explanation: edge
hello people ~
please help me with this question ^^
Equilateral triangle means each interior angle has measure 60°
We need the resultant which is our dipole
[tex]\\ \rm\Rrightarrow R=\sqrt{A^2+B^2+2ABcos\theta}[/tex]
[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)²+(q\ell)²+2(q\ell)(q\ell)cos60°}[/tex]
[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)^2+(q\ell)^2+(q\ell)^2}[/tex]
[tex]\\ \rm\Rrightarrow R=\sqrt{3(q\ell)^2}[/tex]
[tex]\\ \rm\Rrightarrow R=\sqrt{3}{q\ell}[/tex]
Current x is 2.5 a and runs for 39 seconds. current y is 3.8 a and runs for 24 seconds. which current delivered more charge, and how much more charge did it deliver? x delivered 97.5 c more than y. x delivered 6.3 c more than y. y delivered 91.2 c more than x. y delivered 1.3 c more than x.
Given the data from the question,
X delivers more charge than YX delivers 6.3 C more than YDescription of chargeThe charge in a circuit is related to the current and time according to the following equation
Charge (Q) = current (I) × time (t)
Q = it
How to determine the charge delivered by XCurrent (I) = 2.5 ATime (t) = 39 sCharge (Q) =?Q = it
Q = 2.5 × 39
Q = 97.5 C
How to determine the charge delivered by YCurrent (I) = 3.8 ATime (t) = 24 sCharge (Q) =?Q = it
Q = 3.8 × 24
Q = 91.2 C
Difference Charge by X = 97.5 CCharge by Y = 91.2 CDifference = 97.5 – 91.2 = 6.3 CFrom the above calculations, we can conclude as follow:
X delivers more charge than YX delivers 6.3 C more than YLearn more about charge:
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Answer:
BBB
Explanation:
do you agree or disagree that folk dance forms can be outside their original formmeaningful s
I disagree that folk dance forms can be outside their original meaningful form in this scenario.
What is Folk dance?This is the type of dance which is unique to a particular set of people and helps celebrate their culture.
This dance is a ritualistic entertainment which is done in different type of gatherings such as ceremonies etc which is why it isn't outside their original meaningful form.
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how does a thermal mass store energy
Answer:
thermal mass is the ability of a material to absorb, store and release heat... Materials such as concrete, bricks, and tiles absorb and store heat, And then they have Thermal mass.
Explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!
1.What happens when ice cubes melt in a glass?
a
No energy is transferred.
B
Heat travels from the ice to the warmer
water.
C
The water warms up due to the humidity
D
Heat is transferred from the warmer water
to the ice cubes.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The Correct choice is D
Heat always travel from higher temperature body to lower temperature. so we can infer that heat is transferred from the warmer water to the ice cubes which causes melting of that ice in there.
A motorist drives 5 km east then drives 5 km north. Calculate their distance travelled and their displacement.
Answer:
See
distance is 10 km
displacement is 5√2 km
Explanation:
DISTANCE:
Distance is scaler so, it doesn't depend on the direction
so distance is 5+5 which is 10
DISPLACEMENT:
Displacement is a vector, so, it depends on direction.
Now when we see north and east, they form a right angle, so we need to calculate the hypotenuse of the triangle for displacement as it is the shortest route between the two points.
Let hypotenuse be h
5² + 5² = h² Moved 5 km in east and north so values are 5h² = 25+25h² = 50h = √50h=5√2Hope it helps
BYE.
The location of a planet relative to the Sun has a lot to do with its _____; whether it is one of the inner terrestrial planets or outer gas giants.
Answer:
Composition.
Explanation:
the inner planets tend to be made up of more solid materials such as iron, while outer planets are made up of primarily gas and ice
Native people are
in films.
Select the best answer from the choices provided.
O A. almost always cast in supporting roles
OB. rarely allowed to speak
OC. rarely allowed to display a real personality
OD. All of the answers are correct.
Answer:
D.
Explanation:
all of the options are true.
James passes a magnet over a pile of paperclips and the magnet picks up 2 of the paperclips. Then he passes a different magnet over the pile of paperclips and it picks up 6 paperclips. Which of the
following is NOT a testable
hypothesis that James might develop based on this data?
1. a weaker magnet will pick up more
paperclips than a stronger magnet
2. all magnets pick up paperclips, but the
number of paperclips depends on the
magnet
3. magnets will pick up metal objects but
not plastic objects
4. a stronger magnet will pick up more
paperclips than a weaker magnet
Answer: 2
Explanation:
The statement "All magnets pick up paperclips, but the number of paperclips depends on the magnet" is neither a hypothesis nor testable.
The hypothesis that is not testable based on the given data is magnets will pick up metal objects but not plastic objects. Option C is the correct answer.
The reason this hypothesis is not testable based on the given data is that the information provided only pertains to the number of paperclips picked up by different magnets. It does not provide any information or evidence regarding the ability of magnets to pick up metal objects versus plastic objects. Option C is the correct answer.
In order to test this hypothesis, we would need data or experiments specifically focusing on the interaction between magnets and metal objects as well as magnets and plastic objects. The given data only provides information about the number of paperclips picked up by different magnets, which does not support or refute the hypothesis about the ability of magnets to pick up different materials.
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What character flaw do you feel you have? What can you do to improve this?
Answer:
Character flaws that I feel I have are:
Shyness.Extremely reserved nature.Can't say "no".Trying to be perfect always.If the astronaut throws the 3.20 kg tool with an acceleration of 5.90 m/s2 , what is the magnitude of the acceleration a of the astronaut during the throw
The magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.
Force applied to the toolBased on Newton's third law of motion, the force applied to the tool by the atronaut is equal to the force exerted on the astronaut by the tool.
Fa = - Fb
where;
Fa is force exterted by the astronautFb is force exterted by the toolFa = (3.2 x 5.9)
Fa = 18.88 N
Acceleration of the astronautFa = m x a
where;
m is mass of the astronauta is the acceleration of the astronauta = Fa/m
a = (18.88)/m
Thus, the magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.
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Saturn’s bright rings are located within the roche limit of saturn. This supports the theory that these rings:.
This supports the theory that these rings are formed from moons torn apart by tidal stress.
Write about planet saturn?After Jupiter, the second-largest planet in the Solar System is Saturn. It's a giant planet with a radius around nine and a half times that of the Earth.
Saturn is only one-eighth the average density of Earth, yet it is 95 times more massive due to its bigger volume.
Saturn’s bright rings are located within the Roche limit of Saturn. This supports the theory that these rings are formed from moons torn apart by tidal stress.
Hence this supports the theory that these rings are formed from moons torn apart by tidal stress.
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Explain how temperature and particle movement are related.
In a parallel circuit with three resistors connected to a power source, what would happen to the equivalent resistance and current if you removed any one of the resistors? the equivalent resistance would increase and the current would increase. the equivalent resistance would increase and the current would decrease. the equivalent resistance would decrease and the current would decrease. the equivalent resistance would decrease and the current would increase.
Since the equivalent resistance is decreased then current must be increased in the circuit.
What is resistance?Resistance is defined as the obstruction offered by the circuit in the flow of charge or current.
When three resistors are connected in series then the total equivalent of all three is given by
[tex]R_{eq}=R_1+R_2+R_3[/tex]
Also in this case current is given by
[tex]I=\dfrac{V}{R_{eq}}[/tex]
Now if one of the resistance is removed
Then
[tex]R_{eq}=R_1+R_2[/tex]
let one of the resistance is removed
while current flowing in the open circuit will be given by
[tex]I=\dfrac{V}{R_{eq}}[/tex]
So here since resistance is decreased then current must be increased in the circuit.
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Answer:
B. The equivalent resistance would increase and the current would decrease.
Explanation:
What is a gene? *
A) when a male and a female reproductive cell combine to create an offspring
B) the way something is shaped or constructed
C) a type of large molecule that performs important functions inside organisms
D)an instruction for making a protein molecule
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The Correct choice is D
Gene are special biomolecules that have all the required information of that organism, and has an instruction for making protein molecules.
A 250-turn generator with circular loops of radius 15 cm rotates at 60.0 rpm in a
magnetic field with a strength of 1.00 T.
a. What is the angular speed of the loops?
b. What is the area of one loop?
c. What is the maximum emf?
d. What is the rms emf?
(a) The angular speed of the loops is 6.284 rad/s.
(b) The area of one loop is 0.071 m².
(c) The maximum emf of the generator is 111.54 V.
(d) The rms emf of the generator 78.87 V.
Angular speed of the loopThe angular speed of the loop is calculated as follows;
[tex]\omega = 60 \ \frac{rev}{\min} \times \frac{2\pi \ rad}{1 \ rev} \times \frac{1 \min}{60 \ s} \\\\\omega = 6.284 \ rad/s[/tex]
Area of the loopThe area of the loop is calculated as follows;
A = πr²
A = π x (0.15)²
A = 0.071 m²
Maximum emf of the generatoremf(max) = NBAω
emf(max) = (250) x (1) x (0.071) x (6.284)
emf(max) = 111.54 V
Rms emf of the generator[tex]V_{rms} = \frac{V_0}{\sqrt{2} } \\\\V_{rms} = \frac{111.54}{\sqrt{2} } \\\\V_{rms} = 78.87 \ V[/tex]
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Why is it difficult to define abnormal behavior?
Select all that apply.
There is a strict definition of abnormal behavior based on an established set of social norms.
There is a strict definition of abnormal behavior based on an established set of social norms.
People may engage in behaviors that appear abnormal but that are helpful for them to function in everyday life.
People may engage in behaviors that appear abnormal but that are helpful for them to function in everyday life.
Opinions differ on the characteristics that define normal mental health.
Opinions differ on the characteristics that define normal mental health.
Both public stigmas and self-stigmas are associated with labeling behavior as abnormal.
Answer: A. There is a strict definition of abnormal behavior based on an established set of social norms.
Forgive me if I’m wrong :C
If 9.467 A current is passing through a straight wire, what would be the magnetic field induced at a point 3.9 centimeter away from the wire
For a current is passing through a straight wire, the Magnetic field is mathematically given as,
B=5.535*10^5T.
What would be the magnetic field induced at a point 3.9 centimeter away from the wire?Generally, the equation for the Magnetic field is mathematically given as
[tex]B=\frac{\mu i}{ 2 \pi r}[/tex]
Therefore
[tex]B=\frac{4 \pi *10^{-7}*4.2.28}{2 \pi (1.6*10^-2)}[/tex]
B=5.535*10^5T
In conclusion, the magnetic field
B=5.535*10^5T
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What happens to the period of a wave as the frequency increases?.
Explanation:
T=1/f
So if frequency increases the period will decrease
A block of mass 0.4kg on a horizontal surface is attached to a horizontal spring of negligible mass. The other end of the spring is attached to a wall and there is neglig ble friction between the block and the horizontal
surface. The center of mass of the block is stretched a horizontal distance 0.25 beyond its equilibrium position and released from rest such that the block spring system undergoes simple harmonic motion. A graph
of the spring potential energy of the block spring system as a function of the horizontal position of the center of mass of the block is shown. The positive direction is considered to be to the right
of the force exerted by the spring on the block as a function of the block's horizontal position
A loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.
What is simple harmonic motion?Simple harmonic motion is the periodic motion of an object along a straight line, such that the acceleration of the object is directed towards a fixed point on that line and is proportional to its distance from that point.
Example of a simple harmonic motion is the motion of a loaded spiral spring.
The restoring force on the spring is directly proportional to the extension of the spring and the spring constant.
The period of motion, T when a mass, m is attached to a spring with spring constant k,is given as:
T = 2π√(m/k)Therefore, a loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.
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Which of the five criteria that define minerals explains why polymorphs are actually different minerals?