The square root of LC has the dimension of time. Its reciprocal is frequency.
The dimension of under root LC is calculated by taking square root of the multiplication of the dimensions of L (Inductance) and C (Capacitance). Using the dimensions of L as [M][L][T]-2 [I]-2 and C as [M]-1 [L]-2 [T]4 [I]2, the dimension of under root LC is [M]-1/2 [L]-1 [T]2 [I].
Explanation:The question asks for the dimension of under root LC where L is Inductance and C is Capacitance. Both of these are primary physical quantities where the dimension of L is [M][L][T]-2 [I]-2 and the dimension of C is [M]-1 [L]-2 [T]4 [I]2. To find the dimension for under root LC, we can square root the multiplication of the dimensions of L and C, which means that the dimension of under root LC is [M]-1/2 [L]-1 [T]2 [I].
Here, M stands for mass, L for length, T for Time, and I for Current.
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How does jumping into a pool change the amount of gravity acting on you?
Answer:
Because of the buoyant force
Explanation:
Jumping into a pool change the amount of apparent gravity acting on a person.
Normally, for a person in free fall, the weight of the person is given by:
[tex]F=mg[/tex]
where m is the mass of the person and g=9.8 m/s^ is the acceleration due to gravity.
When a person is in the water, there is a buoyant force pushing the person upward. The magnitude of the buoyant force is
[tex]B=\rho_w V g[/tex]
where
[tex]\rho_w[/tex] is the density of the water
V is the volume of displaced fluid
g is the acceleration due to gravity
So the net force acting on the person is
[tex]F= mg - \rho_w V g[/tex] (1)
Since V corresponds to the volume of the person, we can rewrite it as
[tex]V=\frac{m}{\rho_p}[/tex]
where [tex]\rho_p[/tex] is the density of the person. Substituting into eq.(1),
[tex]F=mg- m \frac{\rho_w}{\rho_p} g = mg - mg'[/tex] (2)
where we called
[tex]g'=\frac{\rho_w}{\rho_p} g[/tex]
So we can further rewrite (2) as
[tex]F=m(g-g')[/tex]
so we see that the gravity acting on the person, g, has been modified into (g-g') due to the presence of the buoyant force.
What Are domains in magnetism
Groups of atoms that line up to makes something magnetic
A motorcycle at a stoplight takes 4.22 seconds to accelerate to 28.0 m/s after the light turns green. What is its average acceleration?
Answer:
6.64 m/s²
Explanation:
Given in the question,
time it take to accelerate the motorcycle = 4.22 seconds
final speed motorcycle reach = 28 m/s
initial speed of motorcycle = 0 m/s
Formula to calculate
average acceleration = Δv / Δt= finalspeed - initialspeed / 4.22
= 28 - 0 / 4.22
= 28/4.22
= 6.64 m/s²
Which is the correct symbol for an isotope of bromine with 35 protons and 38 neutrons?
Answer:
[tex]^{73}_{35}Br[/tex]
Explanation:
The correct symbol would be
[tex]^{Atomic Mass}_{Atomic Number}Br=^{35+38}_{35}Br = ^{73}_{35}Br[/tex]
The top number is the atomic mass of this form of Bromine. The bottom number is its position on the periodic table. The 73 is a bit light. Usually the weight is closer to 80.
Make the following prefix conversions. 2 g = mg
Answer:
2000 mg are in 2 g
Explanation:
Answer:
2000 mg are in 2 g
hope this helps pls make this the brainliest
The ransom note in the Lindbergh kidnapping case included some obvious spelling errors and other foreign and regional language. What linguistic methods were used to help identify the kidnapper?
In the Lindbergh kidnapping case, linguistic methods like analyzing spelling errors and language patterns in the ransom note were critical to identifying the kidnapper, showcasing the interplay between language and forensic science.
Explanation:The Lindbergh kidnapping case involved linguistic analysis to help identify the kidnapper, highlighting the significance of language in forensic investigations. Linguists and experts analyzed the ransom note for spelling errors and peculiar language use, which can reveal regional or foreign linguistic traits, potentially pinpointing the origins or characteristics of the writer. These investigative techniques, examining the language patterns and grammatical nuances, provided clues to the kidnapper's identity similar to how Broca suggested Leborgne's limited speech was linked to the tanneries of his hometown in Moret-sur-Loing, reflecting how personal history and environment impact language use. The case is an example of how awareness of linguistic details can be a powerful tool in criminal investigations, demonstrating the depth at which language intertwines with cultural identity and personal history.
Compared with the peak wavelength given off by the Sun, what is the peak wavelength given off by a hotter star?
A. Shorter in wavelength and higher in energy
B. Shorter in wavelength and lower in energy
C. Longer in wavelength and higher in energy
D. Longer in wavelength and lower in energy
Answer:
A. Shorter in wavelength and higher in energy
Explanation:
The peak wavelength of a star can be found by using Wien's displacement law:
[tex]\lambda=\frac{b}{T}[/tex]
where
b is the Wien's displacement constant
T is the surface temperature of the star
From the equation, we see that the peak wavelength [tex]\lambda[/tex] is inversely proportional to the temperature: therefore, a star which is hotter then the sun (greater T) will have shorter wavelength.
Moreover, the energy of the emitted radiation is inversely proportional to the wavelength:
[tex]E=\frac{hc}{\lambda}[/tex]
where h is the Planck constant, c is the speed of light. Therefore, shorter wavelength means higher energy.
So, the correct answer is
A. Shorter in wavelength and higher in energy
Answer:
The answer is A. shorter in wavelength and higher in energy
Explanation:
Covalent Bonds usually bond atoms of which type of elements together?
A. METALS TO METALS
B. METALS TO NONMETALS
C. NONMETALS TO NONMETALS
D. METALS TO METALLOIDS
Covalent bonds hold non-metallic atoms together. These atoms have many electrons in their outermost level and have a tendency to gain electrons rather than to yield them.
In this case the bond is formed by sharing a pair of electrons between the two atoms, one from each atom. Then, this pair of shared electrons is common to the two atoms and holds them together, so that both atoms acquire more stability.
Therefore the correct answer is C.
PLEASE PLEASE HELP! this is on newton’s 2nd law! i will award 20 points and make you brainliest! ASAP PLEASE! ;)
Answer: The correct answer is B
Explanation: The string is pulling right and the string is unraveling causing it to accelerate left
Answer:
b
Explanation:
In terms of the scientific definition of work, magnetic fields can do work, but electric fields cannot.
In terms of the scientific definition of work, magnetic fields can do work, but electric fields cannot:
False
Answer:
FALSE
Explanation:
As we know that magnetic force is given by
[tex]\vec F = q(\vec v \times \vec B)[/tex]
so here magnetic force is always perpendicular to the velocity of the moving charge
so here we can say
[tex]\vec F . \vec v = 0[/tex]
so here since it is not producing any power so here rate of work done is zero which means it will not do any work
while in electrostatic force we know that
F = qE
so here force is not perpendicular to displacement or velocity so it will do work
Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expanding and contracting with each breath. Which of the following would cause abdominal breathing?
Damage to the nerves that control the diaphragm
Damage to the nerves that control the rib muscles
Damage to the medulla oblongata
Damage to the respiratory center
Answer:
The correct answer is - Damage to the nerves that control the diaphragm.
Explanation:
Abdominal breathing is a condition in which inferior half of the lungs can be seen relaxing or contracting and expanding with the breath. This condition occurs due to the various conditions that lead to the respiratory.
It is cause due to the damage to nerves that control the diaphragm. The phrenic nerve is one of the nerve of diaphragm initiates in the neck and passes down.
Thus, the correct answer is - Damage to the nerves that control the diaphragm.
The phrenic nerve is a nerve that originates in the neck (C3–C5) and passes down between the lung and heart to reach the diaphragm.
Answer:
A. Damage to the nerves that control the diaphragm
Explanation:
Help on the blank problem?
Answer:
0.03 s
Explanation:
The maximum force is 90 N, and the mass is 0.2 kg, so we can find the deceleration:
F = ma
-90 N = (0.2 kg) a
a = -450 m/s²
The initial velocity is 14 m/s, and the final velocity is 0 m/s, so the time is:
v = at + v₀
0 m/s = (-450 m/s²) t + 14 m/s
t = 0.03 s
The fastest she can slow it down to a stop without breaking it is in 0.03 s.
Can anyone help me please
The correct option is D
hope that helped?
Answer: is B
Explanation:
You have DNA samples from five different suspects. You know that all humans have very similar DNA. What feature of DNA allows you to match the DNA from one of your suspects to the crime scene sample?
Each person has unique genetic mutations
There are so many base pairs that there are individual differences
DNA rarely replicates so a person's DNA is always the same
Adenine pairs with a different base for each person
Answer:
The answer is positively B.
There are so many base pairs that there are individual differences.
Confirmed by my Forensics test today.
Explanation:
Dichloroacetic acid is a compound with the chemical formula of CHCl2COOH. What is most likely the chemical formula for the acetic acid part of the compound? ClCH CHCOOH Cl2CO COOH
Answer:
Dichloroacetic acid is a compound with the chemical formula of CHCl2COOH. What is most likely the chemical formula for the acetic acid part of the compound?
CHCOOH
Explanation:
The most likely chemical formula for the acetic acid part is; CHCOOH.
According to the question;
Dichloroacetic acid is a compound with the chemical formula of CHCl2COOHWe are however required to determine the most likely chemical formula for the acetic acid part of the compound.By observation, the base compound is acetic acid which has a chemical formula; CH3COOH.
However, In Dichloroacetic acid, two hydrogen atoms on the methyl carbon are replaced by Chlorine atoms.Ultimately, the most likely chemical formula for the acetic acid part is; CHCOOH.
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How many neutrons does element X have if it’s atomic number is 28 and it’s mass number is 81?
Answer:
53
Explanation:
M-A=N
Mass-Atomic #= Neutrons
81-28= 53
The answer is 53,hope this help
A 0.50 kg ball has 3.0 J of kinetic energy, how fast is it moving?
Answer: 3.464 m/s
Explanation:
The Kinetic Energy [tex]K[/tex] is mathematically expressed as:
[tex]K=\frac{1}{2}mV^{2}[/tex] (1)
Where:
[tex]K=3J[/tex]
[tex]m=0.5kg[/tex] is the mass of the body
[tex]V[/tex] its velocity
Rewritting (1):
[tex]3J=\frac{1}{2}(0.5kg)V^{2}[/tex] (2)
Isolating [tex]V[/tex]:
[tex]V=\sqrt{\frac{6J}{0.5kg}}[/tex] (3)
Finally:
[tex]V=3.464m/s[/tex]
A book weighs 4 N. When held at rest in your hands, the net force on the book isQuestion 9 options:
0 N.
0.4 N.
4 N.
39 N.
none of the above
Answer:
0n
Explanation:
Net force is all of the forces acting upon which are equal the gravitational force the regular force and you force pulling in both direction that all equal to another subtracted.
when two substances react chemically to produce a new substance, what is true of the mass of the two substances compared to the mass of the new substance
According to the law of conservation of mass, in a chemical reaction, the mass of the reactants is equal to the mass of the product; matter cannot be created or destroyed.
Explanation:When two substances react chemically to produce a new substance, the law of conservation of mass states that the mass of the reactants (the substances that are reacting) equals the mass of the product (the new substance formed). In other words, the total mass of the substances before the reaction is equal to the total mass after the reaction has occurred. This principle was established through careful quantitative analysis of chemical reactions in the 1790s, and it is a fundamental concept in chemistry that indicates matter cannot be created or destroyed in a chemical reaction; it can only change forms.
How do musical instruments vary pitch?
by changing the frequency of standing waves
by increasing the amplitude of standing waves
by interrupting sound waves
by changing the wavelength of standing waves
by changing the frequency of standing waves
Musical instruments vary pitch by changing the frequency of standing waves.
What will occur when the trough of wave A overlaps the trough of wave B?
Constructive interference will occur, which means the waves will combine.
In destructive inference, the waves cancel each other out.
Hope this helps :)
Answer:
Constructive interference
Explanation:
The superposition of two wave is called interference phenomenon. After interference of wave, the amplitude of resultant wave can be more, less or remains the same.
The two conditions of interference are :
1. Constructive interference 2. Destructive interference
According to given question, when the trough of wave A overlaps the trough of wave B constructive interference occurs. The amplitude of resultant wave is greater than the individual waves. Also, the energy of the resultant wave is more than the energies of wave A and wave B.
When the mass of the cylinder increased by a factor of 3, from 1.0 kg to 3.0 kg, what happened to the cylinder’s gravitational potential energy? It decreased by a factor of 3. It decreased by a factor of 2. It increased by a factor of 2. It increased by a factor of 3.
Answer:
It increased by a factor of 3.
Explanation:
The gravitational potential energy of an object is given by
[tex]U=mgh[/tex]
where
m is the mass
g is the gravitational acceleration
h is the heigth of the object relative to some reference point (for instance, the ground)
As we see from the formula, the gravitational potential energy is directly proportional to the mass, m: therefore, if the mass of the cylinder is increased by a factor 3, then the gravitational potential energy will also increase by a factor 3.
Answer:
It increased by a factor of 2.
Explanation:
Which kind of lenses are used to correct nearsightedness (the ability to see up close but not far away)? Check all that apply
A.) Concave
B.) Converging
C.) Diverging
D.) Convex
Concave and Diverging lens are used to correct nearsightedness.
Answer: Option A & C
Explanation:
There are two main problems in eyesight which are nearsightedness also known as myopia which is the inability to see the objects that are far away and farsightedness where the person suffers the inability to read without correction to eyesight.
In this case, objects which are near can be seen properly whereas distant objects are blurred and so the person need correction in eyesight either by glasses or Concave lens and Diverging lens. It is the best suited option for those cases.
The kind of lenses used to correct nearsightedness is A.) Concave and B.) Converging.
What is nearsightedness?Nearsightedness, also known as myopia, is an eye condition where the light rays from distant objects are focused in front of the retina instead of on the retina. This causes distant objects to appear blurry.
Concave lenses are used to correct nearsightedness because they diverge the light rays, which helps to bring them into focus on the retina. Converging lenses are also used to correct nearsightedness, but they are less common.
Therefore, the correct answers are A.) Concave and B.) Converging.
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In Physics lab, Ellen has been given the task of constructing a simple motor. She must find common household items at home and bring them to class the following day. Her list of items include:
9 volt battery and leads, copper wire rotor, platform to hold the rotor, a magnet, and a wood base
She sets up her motor in physics lab the next day and finds that it works well. Which statement below explains the flow of energy through Ellen's motor?
A) battery-->electrical current-->copper wire rotor -->magnet--> mechanical energy
B) battery--> magnet--> electrical current--> copper wire rotor--> mechanical energy
C) magnet--> mechanical energy--> copper wire rotor--> battery--> electrical current
D) magnet--> copper wire rotor--> mechanical energy--> battery--> electrical current
Answer:
The answer is A.
Explanation:
The flow of the energy in Ellen's motor can be explained as battery→ electrical current → copper wire rotor → magnet → mechanical energy. Therefore, option A is correct.
What is an electric motor?An electric motor can be described as an electrical machine that transforms electrical energy into mechanical energy. Most electric motors work through the interaction between the magnetic field and electric current in a wire winding to generate force as torque applied on the motor's shaft.
An electric generator can be defined as mechanically identical to an electric motor, but works with a reversed flow of power, transforming mechanical energy into electrical energy.
Electric motors can power by DC sources, such as from batteries, or by alternating current (AC) sources, such as a power grid, or electrical generators.
Electric motors can be classified by considerations such as power source, construction, and type of motion output. They can be powered by AC or DC, single-phase, two-phase, or three-phase, axial or radial flux, and can be air-cooled.
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give an example of Newton's 1st law
Answer:
A ball moving until gravity pulls it back down to the ground
Explanation:
One example of Newton's first law is a crash test dummy moving forward during a sudden stop due to inertia. Another is a spinning top maintaining its motion without external forces like friction. Finally, a block would keep sliding on a table at constant velocity without friction, illustrating this law.
One example of Newton's first law, also known as the law of inertia, can be seen in a car crash test. Imagine a crash test where a car abruptly stops upon hitting a barrier. The crash dummy inside continues to move forward at the same speed and in the same direction as the car was traveling before the collision. This is because there is no external force acting on the dummy's body to change its state of motion, thus it keeps moving due to inertia, as stated by Newton's first law.
Another illustration is the behavior of a spinning top. A top will continue to spin at a constant speed in the absence of external forces such as friction. Once friction is introduced, it acts as an external force that gradually slows down the spinning top, demonstrating that without such forces, the object would maintain its motion indefinitely.
Finally, consider a block sliding on a table. The block will eventually come to a stop not because it naturally prefers to be at rest, but because of the force of friction acting between the block and the table. Without this friction or any other external force, the block would continue to slide at a constant velocity in a straight line as described by Newton's first law.
Calculate the force between charges of 5.0 x 10^-8 c and 1.0 x 10^-7 if they are 5.0 feet apart
Answer:
F = 19.375 x 10^-6 N
Explanation:
This problem can be solved by applying Coulomb's Law, which lets us determine the force between two electrically charged particles.
It is defined as
F = (ke * q1 * q2)/ r^2
Where,
ke = is Coulomb's constant ≈ 9×10^9 N⋅m^2⋅C^−2
q1 = 5.0 x 10^-8 C
q2 = 1.0 x 10^-7 C
r = 5 ft = 1,524 m
F = (9×10^9 N⋅m^2⋅C^−2)*(5.0 x 10^-8 C)*(1.0 x 10^-7 C)/ ((1,524 m)^2)
F = (9×10^9 N⋅m^2⋅C^−2)*(5.0 x 10^-8 C)*(1.0 x 10^-7 C)/ ((1,524 m)^2)
F = 19.375 x 10^-6 N
To calculate the force between two charges, we can use Coulomb's Law. The formula is F = k * (q1 * q2) / r^2, where F is the force, k is the electrostatic constant, q1 and q2 are the charges, and r is the distance between them. Plugging in the given values, we find that the force is 3.911 x 10^-6 N.
Explanation:To calculate the force between charges of 5.0 x 10-8 C and 1.0 x 10-7 C that are 5.0 feet apart, we can use Coulomb's Law.
Coulomb's Law states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
The formula for Coulomb's Law is: F = k * (q1 * q2) / r2, where F is the force, k is the electrostatic constant, q1 and q2 are the charges, and r is the distance between them.
Plugging in the given values, we have: F = (8.99 x 109 Nm2/C2) * (5.0 x 10-8 C) * (1.0 x 10-7 C) / (5.0 feet * 0.3048 m/foot)2
Calculating the numerical value, we get: F = 3.911 x 10-6 N
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An electric generator uses __________ to convert mechanical energy into electrical energy.
electromagnetic induction
magnetic conductance
electric dynamism
electric return
Answer:
Devices that convert mechanical energy to electric energy. ... An electric generator is a device that changes kinetic energy to electrical energy through electromagnetic induction. ... [Figure1]. Q: What might happen to the current produced by an electric generator if the poles of the magnet kept reversing?
Explanation:
An electric generator uses electromagnetic induction to convert mechanical energy into electrical energy.
To find the correct option among all the options, we need to know about the principle of electric generator.
What is electric generator?Electric generator generates current by converting mechanical energy to electrical energy.It contains a turbine that rotates due to water or air flow through it which leads to the conversation of mechanical to electrical energy.What is the principle of electric generator?The rotating turbine contains coils of wire that rotate along with the turbine that is kept inside a stable magnetic field.Due to the rotation of the coils, magnetic flux is induced through the coils and induced current is produced. This is called electromagnetic induction.Thus, we can conclude that the option (a) is correct.
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What two factors determine the density of water in deep currents?
Answer:
There are two main factors that makeocean water more or less dense than about 1027 kg/m3: the temperature of the water and the salinity of the water.Ocean water gets more dense as temperature goes down. So, the colder the water, the more dense it is. Increasing salinity also increases thedensity of sea water.
Final answer:
The density of water in deep currents is determined by its temperature and salinity, with colder temperatures and higher salinity leading to denser water, which drives the thermohaline circulation.
Explanation:
The density of water in deep currents is determined primarily by two factors: temperature and salinity. As the temperature of water decreases, its density increases, which is often the case near the polar regions where the water is colder. Similarly, when the salinity of water increases, its density also increases, because the dissolved salts add to the mass of the water without significantly increasing its volume.
These changes in density are crucial for thermohaline circulation, the global pattern of deep currents that move throughout the oceans. Cold, high-salinity water becomes heavy enough to sink to the ocean's bottom in polar regions, setting deep currents into motion. As this dense water moves, it mixes with less dense water, contributing to a global circulation that plays a key role in regulating Earth's climate.
What type of circuit is illustrated?
A) an open parallel circuit
B) a closed parallel circuit
C) an open series circuit
D) a closed series circuit
Answer: c) an open series circuit
Explanation:
this is because the key is open
In terms of the highest pitches they can make, which list correctly orders the instruments and vocals from highest to lowest?
clarinet, bassoon, piccolo, soprano vocal
piccolo, oboe, standup bass, tenor vocal
tuba, bass guitar, violin, piccolo
violin, clarinet, French horn, tuba
Answer:
violin, clarinet, French horn, tuba
Explanation:
did the exam
The instruments and vocals from highest to lowest is violin, clarinet, French horn, tuba.
What is pitch?The sound with high frequency is the high pitch and vice-versa.
Sounds are higher or lower in pitch depending on the frequency of vibration of the sound waves. A high frequency considered as a high pitch and a low frequency will be considered as a low pitch.
The given musical instruments clarinet, bassoon, piccolo, soprano vocal, bass guitar, tuba, french horn, oboe, standup bass, tenor vocal are listed. The highest to lowest pitch arrangement will be violin, clarinet, French horn, tuba.
Thus, the instruments and vocals from highest to lowest is violin, clarinet, French horn, tuba.
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