the transfer of electrical energy from one circuit to another without the aid of a conductor is called:
Answers
Answer:
Inductance or mutual inductance
Energy produced in one circuit induces energy in another
(such as high voltage produced by a coil from input by say, a 12V battery)
Related Questions
The diagram shows the results when two parents are
crossed. The letters represent alleles for a trait that is
controlled by three different genes.
Which best describes this inheritance pattern?
multiple allele because a trait is controlled by three different genes
polygenic because the offspring have alleles from both parents
multiple allele because the offspring have alleles from
both parents
polygenic because a trait is controlled by three different
genes
Answers
Answer:
Polygenic because a trait is controlled by three different genes
Explanation:
In the given question, the diagram of the question is not found anywhere therefore the question has been answered based on previous knowledge.
The traits of an organism are determined by the sequences of nucleotide present on the DNA called genes. One gene-one protein hypothesis suggests that usually one trait is determined by 2 alleles of a gene but there are few traits which are either determined or influenced by more than one gene.
These traits are known as the polygenic trait as the traits are controlled by more than one or "poly (many) genes" like human eye color, height, and others.
Thus, the selected option is the correct answer.
Answer:
Polygenic because a trait is controlled by three different genes
Explanation:
got 100%
variable in relation to radius.
Velocity
Acceleration
Arc Length
Answers
Answer:
Explanation:
arc length
el huevo so el cuerpo es calvario y fiebre
It takes 100 N to move a box 10 meters in 5 seconds. How much power is
required?
A. 1,000 W
O B. 200 W
C. 5,000 W
O D. 20 W
Answers
Answer:
200W
Explanation:
W=F*d
P=W/t
P=(100)(10)/5
P=200
A boy pulls a bag of baseball bats across a ball field toward the parking lot. The bag of bats has a mass of 6. 80 kg, and the boy exerts a horizontal force of 24. 0 n on the bag. As a result, the bag accelerates from rest to a speed of 1. 12 m>s in a distance of 5. 25 m. What is the coefficient of kinetic friction between the bag and the ground?
Answers
The coefficient of kinetic friction between the bag and the ground is found to be 0.0251. It represents the ratio of the frictional force to the normal force acting between them.
In this question, a boy pulls a bag of baseball bats across a ball field toward the parking lot. The bag of bats has a mass of 6.80 kg, and the boy exerts a horizontal force of 24.0 N on the bag. As a result, the bag accelerates from rest to a speed of 1.12 m/s at a distance of 5.25 m. We have to find the coefficient of kinetic friction between the bag and the ground.The formula used to find the coefficient of kinetic friction is given as,μk= (a/g) + μs (1 - a/g), Where, μk = coefficient of kinetic friction, a = acceleration of the body, g = acceleration due to gravity (9.8 m/s2), μs = coefficient of static frictionGiven, Mass of the bag (m) = 6.80 kg, Force applied (F) = 24.0 N, Initial velocity (u) = 0 m/s, Final velocity (v) = 1.12 m/s, Distance covered (s) = 5.25 m, Acceleration (a) = (v2 - u2) / 2s. Substituting the given values, a = (1.12² - 0²) / (2 * 5.25)m/s²a = 0.247m/s². Now, we will use the formula of the coefficient of kinetic friction. μk= (a/g) + μs (1 - a/g)Let's assume the value of μs to be zero.μk= (a/g) + 0 (1 - a/g) = μk= (a/g) + 0 (1 - a/g) = μk = (a/g) = μk = (0.247m/s²) / (9.8m/s²) = μk= 0.0251. Therefore, the coefficient of kinetic friction between the bag and the ground is 0.0251. In order to move the bag, the boy had to overcome friction. From the given values, we calculated the acceleration of the bag, which was found to be 0.247 m/s². Using this acceleration, we can find the coefficient of kinetic friction, which came out to be 0.0251. This value represents the ratio of the frictional force to the normal force acting between the bag and the ground.For more questions on kinetic friction
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the maximum audible range is about 15 to 20,000 hz. determine the range of wavelengths for sound over this range of frequency. assume room temperature.
Answers
The range of the wavelengths for the sound over the audible range of frequencies in room temperature is from 24 meters to 18×10⁻³ meters.
The relation between velocity , wavelength and frequency of a sound is given by the following equation :
⇒ V = λ x ν where, V stands for the velocity of the sound, λ stands for the wavelength, and ν stands for frequency of the sound. To find wavelength, we have to put ν on the left side of the equation which gives us :
λ = V/ν
Velocity of the sound at room temperature ≈ 360m/s
For 15 hertz, Wavelength = V/ν
= 360/15
=24 meters
For 20,000 hertz, Wavelength = V/ν
= 360/20000
=18×10⁻³ meters
Therefore, the audible range of wavelengths is from 24 meters to 18×10⁻³ meters.
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How does the
number of coils
impact the
strength of the
magnet?
Why do you thin
this is?
Answers
Answer:
The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.
Explanation:
In the one pully system when you move the mass from the 20 cm mark to the 15 cm mark, it moves 5 cm. How far did you pull the string. Question 1 options: 5 cm 10 cm 15 cm 20 cm
Answers
Answer:
5 cm
Explanation:
rock layer that can be porous but must have very low to no permeability
Answers
Rock layer that can be porous but must have very low to no permeability is option A. above oil and natural gas
What is soil permeability?Soil permeability is a measure of a soil's ability to allow water to flow through it. It is determined by the size, shape, and arrangement of the soil particles, as well as by the presence of pores or fractures in the soil.
Soils with high permeability allow water to flow through them quickly, while soils with low permeability do not allow water to flow through as easily. Permeability is important for both agricultural and engineering applications, as it can affect water availability for plants, and the stability of foundations for buildings and other structures.
Therefore, the correct answer is as given above
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The complete question goes thus:
Rock layer that can be porous but must have very low to no permeability.
A. above oil and natural gas
B. Under oil and natural gas
C. Coal, oil, natural gas
D. anthracite
You throw a dodge ball with a mass of 2.1 kg. The ball leaves your hand with a speed of 25 m/s. Identify the energy (PE or KE) and calculate it.
Answers
Given,
The mass of the object, m=2.1 kg
The speed of the object, v=25 m/s
Kinetic energy is the energy that an object possesses due to its motion. And potential energy is the energy that an object possesses due to its position.
The gravitational potential energy depends on the height of the object. As the change in the height of the object is not mentioned in the question, let us assume that there is no change in the potential energy.
The velocity of the object, however, changes. Thus the energy possessed by the object is the kinetic energy.
And the kinetic is given by
\(E_K=\frac{1}{2}mv^2\)On substituting the known values,
\(\begin{gathered} E_K=\frac{1}{2}\times2.1\times25^2 \\ =656.25\text{ J} \end{gathered}\)Thus the kinetic energy of the ball is 656.25 J
on a trip, a family travels 193.0 km in 2.6 h on the first day, 254.3 km in 3.8 h on the second day, and 245.9 km in 3.5 h on the third day. what was the average speed, in kilometers per hour, for the total trip? (use significant figures in your answer.) you do not need to enter units in your answer.
Answers
The average speed for the total trip can be calculated by adding up the total distance traveled (193.0 km + 254.3 km + 245.9 km = 693.2 km) and dividing it by the total time taken (2.6 h + 3.8 h + 3.5 h = 10.9 h). the formula to calculate average speed is distance.
the average speed of the entire trip, which means we need to consider the total distance traveled and the total time taken. We are given the distances and times for each day, so we add them up to get the total distance and time. We then use the formula for average speed to calculate the answer. It is important to note that we should use significant figures in our answer, which means we round the answer to two decimal places as there are only two significant figures in the given distances and times.
Total distance = Distance on Day 1 + Distance on Day 2 + Distance on Day 3Total distance = 193.0 km + 254.3 km + 245.9 kmTotal distance = 693.2 km Total time = Time on Day 1 + Time on Day 2 + Time on Day 3 Total time = 2.6 h + 3.8 h + 3.5 h Total time = 9.9 h the average speed for the total trip.Average speed = Total distance /
Average speed = 693.2 km / 9.9 hAverage speed = 70.02020202 The given values have three significant figures, so round the answer to three significant figures.Average speed = 70.0km/h I apologize for the mistake in my main answer. The correct average speed for the total trip is 70.0 km/h.
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why is it important to calibrate the thermometer with a set of standards having a range of melting points
Answers
Calibrating a thermometer is important to ensure that the temperature readings are accurate.
By using a set of standards with a range of known melting points, the thermometer can be calibrated against known temperatures to ensure it is providing accurate readings.
This ensures that when the thermometer is used in experiments or other applications, the measurements taken are reliable and can be trusted. Calibration also allows any potential errors in the thermometer readings to be identified and corrected.
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Two long straight parallel lines, #1 and #2, carry uniform positive linear charge densities. The charge density on line #2 is twice as great as the charge density on line #1. The locus of points where the electric field due to these lines is zero is
along a line between the lines closer to line #2 than line #1.
at a point midway between the lines.
along a line between the lines closer to line #1 than line #2.
along a line perpendicular to lines #1 and #2.
Answers
Answer:
The locus of points where the electric field due to these lines is zero is;
Along the line between the lines closer to line#1 than line #2
Explanation:
The charges on the parallel lines #1 and #2 = Positive linear charge
The charge density on line #2, λ₂ = 2 × The charge density on line #1, λ₁
Therefore, we have;
λ₂ = 2 × λ₁
Electric field strength, E, is given as follows;
\(E = \dfrac{\lambda}{2\cdot \pi\cdot \epsilon_0\cdot d}\)
Therefore;
\(E_1 = \dfrac{\lambda_1}{2\cdot \pi\cdot \epsilon_0\cdot d}\)
\(E_2 = \dfrac{\lambda_2}{2\cdot \pi\cdot \epsilon_0\cdot d} = 2 \times\dfrac{\lambda_1}{2\cdot \pi\cdot \epsilon_0\cdot d}\)
E₂ = 2·E₁
E₂/2 = E₁
E₂/(2·d) = E₁/d
The strength of the electric field at a given distance from line #2 is 2 times the strength of the electric field from line #1 at the same distance
Therefore the strength of the electric field will be the same at a point twice the distance from line #2 than from line #1 which is a point closer to line #1 than line #2.
The 2 Vectors shown in the image below are combined.What is the resultant quantity?
Answers
Option A is correct. The resultant quantity is 50m/s to the right.
Vector quantities are quantities that have both magnitude and direction.
From the diagram shown, we can see that 100m/s vector moves in the positive x-direction, this means that the of magnitude the vector is +100m/s.
For the vector 50m/s, we can see that it is moving in the negative x-direction, this shows that the magnitude of the 50m/s vector is -50m/s.
Resultant speed = +100 - 50
Resultant speed = +50m/s
Since the resultant speed is a positive value, this mean that the resultant quantity will be moving towards the right.
Hence the correct option will be 50m/s to the right.
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A clown in a circus act swings a 2.7-kg metal ball attached to a 72.0-cm nylon string in a horizontal circle above her head, making one revolution in 0.98 s. What is the tension force, Ft, exerted on the string by the ball?
Answers
Answer:
Tension, Ft = 79.91 N
Explanation:
The tension in the string is the resultant force that exists in the string due to the centripetal effect of the swinging ball.
From conservation laws, the tension in the string will be equals to the centripetal force acting on the string.
The tension in a string can be obtained using the formula:
\(T=mv^2/R\)
where v = linear velocity of the metal ball which equals to the angular velocity of the ball X the radius of the ball.
The radius of the ball is given as 72 cm = 0.72m and the angular velocity = 1.02 rad/second.
Therefore, linear velocity, \(v = 2\pi \times 1.02\times 0.72 =4.616m/s\)
The tension in the string will now be equals to \(2.7 \times 4.616^2 /0.72 =79.91N\)
When the crest of one wave passes through the trough of another wave, ____ takes place. A. resonance B. diffraction C. constructive interference D. destructive interference
Answers
When the crest of one wave passes through the trough of another wave, destructive interference takes place.
What is the crest of a wavelength?The crest and trough of a wave, respectively, are its highest and lowest surface portions. The wave height is the vertical distance between the peak and trough. The wavelength is the horizontal separation between two consecutive crests or troughs.
When the crest of one wave passes through the trough of another wave, interference takes place.
This interference can be constructive, where the amplitudes of the waves add up, resulting in a larger wave, or destructive, where the amplitudes of the waves cancel out, resulting in a smaller wave or no wave at all.
The type of interference that occurs depends on the relative amplitudes, wavelengths, and phases of the two waves.
Therefore, destructive interference takes place when the crest of one wave passes through the trough of another wave.
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Q.7. For a system with a transfer function of G(s)=- co² s² +2a+w² if the natural frequency is 0.5 and the damping ratio is 1.3, which of the following statements is correct regarding the unit step response of the system?
O A) Damped
O B) Undamped
O C) Underdamped
O D) Crittically Damped
O E) Overdamped
Answers
The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)
The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.
To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).
The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).
In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).
Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.
If co > co_critical, the system is considered overdamped (Option E).
If co = co_critical, the system is considered critically damped (Option D).
If co < co_critical, the system is considered underdamped (Option C).
Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.
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The long distance water movement, from roots up to leaves, of the water transport in large plants depends on one unique property of water. Water's unique property of ______________ allows water molecules to stick together so they can be pulled upward by the force of transpiration.
Answers
Answer:
cohesion and adhesion property of water
Explanation:
Water - the universal solvent with many unique properties. According to the given question, one of the unique properties of water that can be the best answer to the question is the property of cohesion and adhesion of water.
Therefore, the long distance water movement, from roots up to leaves, of the water transport in large plants depends on one unique property of water. Water's unique property of cohesion and adhesion allows water molecules to stick together so they can be pulled upward by the force of transpiration.
How much force is generated when a 200 kg block is accelerated at a rate of 25 m/s?
Answers
Answer:
F= 5000 N
Explanation:
This problem is related to force on a body, and to tackle it we need to apply newtons first law of motion which states that "a body will continue to be at rest or uniform motion except acted upon by an external force greater than the force keeping the body at rest or uniform motion"
given
mass m= 200kg
acceleration a= 25 m/s
we know that
F= ma
F= 200*25
F= 5000 N
Explain why we draw straight lines to show rays of light?
Answers
Answer:
Because light always travels in straight line.
Explanation:
The fact that light travels can be demonstrated by putting an object in its path. If the object is opaque the result is a degree of blackness on the other side of it which is due to the absence of the light. ... As light does appear to travel in straight lines then light is usually modelled as straight lines in drawings.
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Police are reinvestigating a cold case from 10 years ago. They have exhumed the body and an autopsy is being performed. The forensic scientist detected a poison in the bones of the body, which led to an eventual arrest of a suspect. What poison was MOST likely found?
A. cyanide
B.arsenic
C.mercury
D. strychnine
Answers
The poison was most likely found was B)arsenic
What is poisioning?
Poisoning is defined as harm or death brought on by ingesting, inhaling, touching, injecting, or ingesting different medications, chemicals, venoms, or gases. Many chemicals, including pharmaceuticals and carbon monoxide, become dangerous only when they are consumed in large quantities. While some cleaners only cause harm when consumed, others also release hazardous vapors or fumes.
When large doses of arsenic are ingested or inhaled, arsenic poisoning, also known as arsenicosis, occurs. Gray, silver, or white in hue, arsenic is a form of carcinogen. For humans, arsenic is exceedingly dangerous. Because it has no taste or odor, arsenic is particularly hazardous because you can be exposed to it covertly. After death, the toxin leaves residues on the body.
Hence the poison was most likely found was B)arsenic
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he first right-hand rule relates which two quantities?
A.
current (thumb) to magnetic field (fingers)
B.
magnetic field (thumb) to current (fingers)
C.
current (thumb) to force (fingers)
D.
force (thumb) to current (fingers)
Reset Next
Answers
Answer: A.
current (thumb) to magnetic field (fingers)
Answer:
A. current (thumb) to magnetic field (fingers)
Explanation:
According to the Right-Hand Thumb rule, if we are holding a current- carrying straight conductor in our right hand such that the thumb points toward the direction of current, then the fingers will wrap around the conductor in the direction of the field lines of the magnetic field.
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3. A student throws a calculator upward at 22 m/s. How far from the ground will the calculator be when it
has half the speed it was thrown with? How much time did it take to reach this height?
Answers
Answer:
18 m
1.1 s
Explanation:
Given:
v₀ = 22 m/s
v = 11 m/s
a = -10 m/s²
Find: Δy
v² = v₀² + 2aΔy
(11 m/s)² = (22 m/s)² + 2 (-10 m/s²) Δy
Δy ≈ 18 m
Find: t
v = at + v₀
11 m/s = (-10 m/s²) t + 22 m/s
t = 1.1 s
What would be the effects on dna replication if mutation of dna polymerase iii caused it to lose 5' to 3' polymerase activity?
Answers
The mutation causing the loss of 5' to 3' polymerase activity in DNA polymerase III would result in incomplete DNA synthesis, shorter DNA strands, and an increased accumulation of DNA errors during replication.
Here are the effects this mutation would have on DNA replication:
If a mutation in DNA polymerase III caused it to lose 5' to 3' polymerase activity, it would have significant effects on DNA replication. DNA polymerase III is responsible for synthesizing new DNA strands during replication. Losing its 5' to 3' polymerase activity means it would no longer be able to add nucleotides to the growing DNA strand in the correct direction.
1. Inability to synthesize new DNA strands: DNA polymerase III plays a key role in elongating the leading and lagging strands of DNA. Without its 5' to 3' polymerase activity, it would be unable to add nucleotides in the required direction, resulting in incomplete DNA synthesis.
2. Formation of shorter DNA strands: Since the leading and lagging strands would not be fully elongated, shorter DNA strands would be produced during replication.
3. Accumulation of DNA errors: DNA polymerase III also has proofreading capability, allowing it to correct errors in DNA replication. Losing its 5' to 3' polymerase activity would impair this proofreading function, leading to a higher accumulation of DNA errors.
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a _____ has to do with the direction of a force
Answers
Answer:
The "solid force"? ... The direction of the force always seems to be coming out of the solid surface. A direction which is perpendicular to the plane of a surface is said to be normal. The force that a solid surface exerts on anything in the normal direction is called the normal force.
Explanation:
i think i hope this helps
How is a neutron star different from a regular star?.
Answers
Answer:
neutron stars are formed in the catastrophic collapse of the core of a massive star
Explanation:
A normal start like our sun is made from hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores and a neutron star is made from a catastrophic collapse of the core of a massive normal star.
From the information given in the diagram below, find the coefficient of friction between
the 43 kg box and the surface on which it is pulled. Note that the box is accelerating at
0.79 m/s2.
Answers
Answer:
μ = 0.55
Explanation:
Given:
m = 43 kg
a = 0.79 m/s²
F pull = 265 N
_____________
μ - ? Friction coefficient
2 Newton's law:
m·a = Fpull - μ·m·g
μ·m·g = Fpull - m·a
Friction coefficient:
μ = (Fpull - m·a) / (m·g)
μ = (265 - 43·0.79) / (43·9.8) ≈ 0.55
Research shows that continents move at an average rate of 2.3 cm per
year. Which two theories could be supported by this evidence?
Raisin theory
Expanding Earth theory
Contracting Earth theory
Theory of continental drift
SUBMIT
Answers
theory of continetal drift sumbit
if rechargeable cell is being charged from a source of EMF the EMF of cell during charging is
A. always equal to its terminal potential difference
B. always greater than its terminal potential difference
C. always less than its terminal potential difference
D. either equal or less than its terminal potential difference
Answers
Answer:
a
Explanation:
I think bec. I am in small school
Help help help help help
Answers
When light travels from a medium with a refractive index of 1,1 to a medium with a refractive index of 1,2 with an angle of incidence of 70 degrees, then: "it refracts toward the normal"
Explain how and show calculation if possible
Answers
When light travels from a medium with a refractive index of 1.1 to a medium with a refractive index of 1.2 with an angle of incidence of 70 degrees, it refracts toward the normal.
Refraction is the bending of light as it passes from one medium to another with a different refractive index. The angle of incidence is the angle between the incident ray and the normal (a line perpendicular to the surface of the medium). According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the refractive indices of the two media.
Using Snell's law, we can calculate the angle of refraction. Let's assume the angle of refraction is θr:
n1 * sin(θi) = n2 * sin(θr)
Given:
n1 = 1.1 (refractive index of the initial medium)
n2 = 1.2 (refractive index of the final medium)
θi = 70 degrees (angle of incidence)
Plugging in the values:
1.1 * sin(70) = 1.2 * sin(θr)
We can solve this equation to find the value of θr, which represents the angle of refraction.
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