Answer:
Gravity of a particular planet depends on the mass of the planet and the radius of the planet.
Explanation:
Answer:
IT DEPENDS PARTICULARLY ON THE MASS OF AN OBJECT
when connected to a mains of 250v,the fuse rating in the plug of an electric dence of 1kw in ampere is?
The fuse rating in the plug of the electric device should be 4 amperes.
What is ampere ?
An ampere can be defined as a unit of measure of the rate of electron flow or current in an electrical conductor.
To calculate the fuse rating in amperes for an electric device with a power rating of 1 kW connected to a mains voltage of 250 V, we can use the formula:
P = IV
Where
P is the power in wattsI is the current in amperesV is the voltage in voltsIn this case, we have P = 1000 W (since 1 kW = 1000 W) and V = 250 V. Solving for I, we get:
I = P/V = 1000 W / 250 V = 4 A
Therefore, the fuse rating in the plug of the electric device should be 4 amperes.
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which three things are connected in the system that causes us to see the moon’s phases?
The three things that are connected in the system that causes us to see the moon's phases are the moon, the sun, and the Earth. As the moon orbits around the Earth, it also receives sunlight from the sun.
Depending on the moon's position in relation to the sun and the Earth, different portions of the moon's surface are illuminated. When the moon is between the sun and the Earth, we see the side of the moon that is not illuminated, which is known as the new moon phase. As the moon moves in its orbit, we see different portions of the illuminated side of the moon, which causes the different phases such as crescent, half-moon, and full moon. The changing phases of the moon occur due to the interaction of these three celestial bodies in the system, which is also known as the lunar cycle.
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Why is rust formed on iron
what was the original intensity i0, assuming the light started out unpolarized?
The original intensity I0 is the same as the sum of the intensities transmitted through the two filters and is given by I0 = I1 + I2.
The intensity of light transmitted through two polarizing filters with axes at a relative angle θ is given by the Malus' Law equation, I1 = I0cos^2(θ), where I0 is the original intensity of the unpolarized light. Similarly, when the axes are at a relative angle 90.0°-θ, the intensity is given by I2 = I0sin^2(θ).
To find the original intensity I0, we can use the fact that the sum of the intensities transmitted through the two filters is equal to the original intensity. So, I1 + I2 = I0. Substituting the values of I1 and I2, we get:
I0cos^2(θ) + I0sin^2(θ) = I0
Simplifying this equation, we get:
I0(cos^2(θ) + sin^2(θ)) = I0
Since cos^2(θ) + sin^2(θ) = 1, we get:
I0 = I1 + I2 = I0(cos^2(θ) + sin^2(θ)) = I0
Therefore, the original intensity I0 is the same as the sum of the intensities transmitted through the two filters and is given by I0 = I1 + I2.
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complete question:
Suppose I1 is the intensity of light transmitted through two polarizing filters with axes at a relative angle θ, and I2 is the intensity when the axes are at a relative angle 90.0°-θ.
What was the original intensity I0, assuming the light started out unpolarized?
If the light started out unpolarized, then the original intensity i0 would refer to the total intensity of the light before it was polarized.
When light is unpolarized, it vibrates in all possible directions perpendicular to the direction of its propagation. This means that the total intensity of the light is equal to the sum of the intensities of all the individual waves that make it up.
Determining the value of i0 would depend on the specific source of the light and the measurements taken to determine its intensity. However, it is important to note that the polarization of light can affect its intensity. When polarized light is passed through a polarizer, only the component of the light that is parallel to the polarizer's axis is allowed through, which can result in a decrease in intensity. Therefore, if the original intensity i0 was measured after the light had passed through a polarizer, it would not accurately represent the total intensity of the unpolarized light.
The value of i0 would depend on the specific conditions of the unpolarized light source and measurements taken. However, it is important to consider how polarization can affect the intensity of light when making this determination.
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True or False—Tension is the result of opposite forces in a connector, such as a string, rope, chain or cable, that pulls each point of the connector apart in the direction parallel to the length of the connector. At the ends of the connector, the tension pulls toward the center of the connector.
Tension is the result of opposite forces in a connector. The tension pulls each object towards the center of the connector. Thus, the given statement is true.
What is Tension?
Tension is the opposite force that is exerted by a rope, string, cable, or similar object on one or more objects. Anything which is pulled, hung, supported, or swung from a rope, string, and cable, etc. is subjected to the tension force. Like all the other forces, tension can also accelerate objects or cause them to deform from their original structure.
Newton's third law is that when a contact force acts between any two objects, both the objects experience the same magnitude of force, but in opposite directions to each other. In tension, the two objects which are attached with the rope pull on each other.
To determine the magnitude of tension, a formula is used:
2T sin(α) = m × g
where m × g represents is the weight of the suspended object.
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the temperature measured in kelvin (k) is the temperature measured in celsius (c) increased by 273.15. this can be modeled by the equation k
The temperature in Kelvin (K) is equal to the temperature in Celsius (°C) plus 273.15.
The Celsius and Kelvin temperature scales are two common temperature scales used in science. The relationship between these two scales can be described by a simple equation.
To convert a temperature from Celsius to Kelvin, you add 273.15 to the Celsius temperature. This equation is derived from the fact that the Kelvin scale starts at absolute zero, which is -273.15°C. Therefore, to account for the offset between the two scales, 273.15 is added to the Celsius temperature to obtain the equivalent temperature in Kelvin.
For example, if you have a temperature of 25°C, you can convert it to Kelvin by adding 273.15:
25°C + 273.15 = 298.15 K
So, 25°C is equivalent to 298.15 K.
This equation holds true for any temperature value in Celsius. By adding 273.15 to a Celsius temperature, you obtain the corresponding temperature in Kelvin.
In summary, the equation K = °C + 273.15 represents the conversion between Celsius and Kelvin temperatures, where K represents the temperature in Kelvin and °C represents the temperature in Celsius. Adding 273.15 to a Celsius temperature gives the equivalent temperature in Kelvin.
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The average kinetic energy of the molecules of an ideal gas at 10∘C has the value K10. At what temperature T1 (in degrees Celsius) will the average kinetic energy of the same gas be twice this value, 2K10? Express the temperature to the nearest integer. View Available Hint(s) T1 T 1 T_1 = nothing ∘C Part B The molecules in an ideal gas at 10∘C have a root-mean-square (rms) speed vrms. At what temperature T2 (in degrees Celsius) will the molecules have twice the rms speed, 2vrms? Express the temperature to the nearest integer. View Available Hint(s) T2 T 2 T_2 = nothing ∘C
Answer:
A) T1 = 566 k = 293°C
B) T2 = 1132 k = 859°C
Explanation:
A)
The average kinetic energy of the molecules of an ideal gas is givwn by the formula:
K.E = (3/2)KT
where,
K.E = Average Kinetic Energy
K = Boltzman Constant
T = Absolute Temperature
At 10°C:
K.E = K10
T = 10°C + 273 = 283 K
Therefore,
K10 = (3/2)(K)(283)
FOR TWICE VALUE OF K10:
T = T1
Therefore,
2 K10 = (3/2)(K)(T1)
using the value of K10:
2(3/2)(K)(283) = (3/2)(K)(T1)
T1 = 566 k = 293°C
B)
The average kinetic energy of the molecules of an ideal gas is given by the formula:
K.E = (3/2)KT
but K.E is also given by:
K.E = (1/2)(m)(vrms)²
Therefore,
(3/2)KT = (1/2)(m)(vrms)²
vrms = √(3KT/m)
where,
vrms = Root Mean Square Velocity of Molecule
K = Boltzman Constant
T = Absolute Temperature
m = mass
At
T = 10°C + 273 = 283 K
vrms = √[3K(283)/m]
FOR TWICE VALUE OF vrms:
T = T2
Therefore,
2 vrms = √(3KT2/m)
using the value of vrms:
2√[3K(283)/m] = √(3KT2/m)
2√283 = √T2
Squaring on both sides:
(4)(283) = T2
T2 = 1132 k = 859°C
A) The temperature at which the average kinetic energy will have a value of 2K10 is; T1 = 293 °C
B) The temperature at which the molecules have twice the rms speed, 2vrms is; T2 = 859 °C
A) We are given;
Initial temperature; T = 10°C = 283 K
Initial kinetic energy; KE = K10
Final kinetic energy; KE1 = 2K10
Now,formula for average kinetic energy of the molecules of an ideal gas is given as;
KE = (3/2)kT
Where;
k is Boltzmann constant
T is temperature
We are told that in the second case, KE = 2K10. Thus;
2K10 = (3/2)kT1
K10 = ¾kT1 - - - (eq 2)
In the first instance, we have;
K10 = (3/2)kT - - - (eq 1)
Put (3/2)kT for K10 in eq 2 to get;
(3/2)kT = ¾kT1
k will cancel out to get;
(3/2)T = ¾T1
Make T1 the subject to get;
T1 = 2T
Thus;
T1 = 2 × 283
T1 = 566 K
Converting to °C gives;
T1 = 293 °C
B) We want to find the temperature T2 (in degrees Celsius) at which the molecules will have twice the rms speed, 2v_rms.
Formula for kinetic energy is also;
KE = ½mv²
Thus;
½m(v_rms)² = (3/2)kT
v_rms = √(3kT/m) - - - (eq 1)
When rms speed is 2v_rms, we have;
½m(2v_rms)² = (3/2)kT2
v_rms = √(¾kT2/m) - - - (eq 2)
Thus;
√(3kT/m) = √(¾kT2/m)
Square both sides to get;
(3kT/m) = (¾kT2/m)
4T = T2
T2 = 283 × 4
T2 = 1132 K
Converting to °C gives;
T2 = 859 °C
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Which step can ordinary people take to minimize the effects of earthquakes and volcanoes and prevent the loss of human life
The step which ordinary people can take to minimize the effects of earthquakes and volcanoes and prevent the loss of human life is through awareness and warning systems by the appropriate authorities.
What is Earthquake?This is referred to as the process which involves the sudden shaking of the ground as a result of the passage of seismic waves through Earth's rocks.
Its effect with that of volcanoes can be reduced by creating the necessary awareness and warning systems so that the citizens adopt land use practices and building codes best suited for areas prone to this type of condition.
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Frank has a paperclip. It has a mass of 12g and a volume of 3cm3. What is its density?
Answer:
D = 4 g/cm³
Explanation:
Density = Mass / Volume
Step 1: Define
D = x
M = 12 g
V = 3 cm³
Step 2: Substitute
D = 12g/3 cm³
Step 3: Simplify
D = 4g / cm³
good morning how ya'll doing today
Answer:
good
Explanation:
Answer:
fine
Explanation:
make me as brainliast
A protein-digesting enzyme when mixed with starch solution would
Answer:
It would produce fat..........
A plane flies 300km in 3 hrs. What is
the rate of the plane?
the plane is on a average of 100km a hour
Answer:
on average, the plane is traveling at 100km per hour, so i think the rate is 100:1
Explanation:
a hockey puck is hit by a player at the goalie. the puck is hit with a 1200 n force. the stick made contact for 0.1 seconds. what impulse was given to the puck?
The Impulse of 120 Ns was given to the puck by hitting at 1200N for 0.1 s of contact.
Impulse is the integral of force or we can say force over the time interval. In this case of hockey puck force provided is 1200n, for the time span of 0.1 seconds contacts. And Impulse is also called a change in momentum. That is dp(Delta p). So force and time of contact both are directly proportional to impulse.
so dp = fxdt............(dt- delta t or change in time)....(i)
dp = 1200x0.1 ........... from (i)dp= 120Here the impulse is calculated as 120-newton seconds on hitting the ball by 1200 N and in contact time of 0.1 s.
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Alfredo makes a diagram to organize his notes about charging objects.
Which statement should he place in the region marked X?
It does not involve touching the objects together.
The objects develop opposite charges.
Electrons do not move between objects.
The objects have the same charge.
The region marked X in the diagram shows that the objects have the same charge.
What is conduction?
The term conduction has to do with the manner of charging in which charge is passed from one object to another. Induction involves charging objects without the objects touching each other.
The region marked X in the diagram shows that the objects have the same charge.
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Answer:
D
Explanation:
!! i will mark as brainliest so pls answer quick !!
The student becomes negatively charged because of the friction between her socks and the carpet.
Explain why the friction causes the student to become charged
Answer:
A student becomes negatively charged because of the friction between his socks and the carpet. ... The electrons get rubbed and move towards the carpet so the carpets electrons move away and the student becomes negatively charged.
if the crumple zone exerts +200,000 N of force on the wall, how much force will the wall exert on the crumple zone?
Answer: -200,000N
(To be more specific, 200,000N in the opposite direction)
Explanation:
By Newton's 3rd law (Action reaction pair)
The crumple zone exerts a force on the wall, the wall will exert an equal but opposite force on the wall.
Same magnitude -> 200,000N
Opposite direction-> Include a negative sign as force is a vector which depends on both magnitude and direction.
Find the correct statement
The disturbance created by a source of sound in the medium do not travels through the medium but the particles of the medium does.
The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium
The particles and the disturbance created by a source of sound in the medium do not travels through the medium
The disturbance created by a source of sound in the medium travels through the medium along with the particles of the medium
Answer:The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium
Explanation:i hope this is right
A high-speed transmission medium that uses a protected string of glass to transmit beams of light.a. Trueb. False
A high-speed transmission medium that uses a protected string of glass to transmit beams of light.
Correct answer is, True.
This refers to fiber optic cables, which use glass or plastic fibers to transmit light signals at high speeds and are protected by a sheath or jacket., faster speeds, and resistance to electromagnetic interference.
This statement accurately describes fiber-optic cables, which are high-speed transmission mediums that use glass or plastic fibers to transmit light signals. Fiber-optic cables have several advantages over traditional copper cables, including higher bandwidth.
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in digital forensics, the record that documents the sequence of custody, control, transfer, analysis, and disposition of physical or electronic evidence is called what? coursera quiz
Term used to describe the record that documents the sequence of custody, control, transfer, analysis, and disposition of physical or electronic evidence in digital forensics is called a chain of custody.
A chain of custody is a critical aspect of digital forensics as it provides an unbroken record of the handling of evidence from the time it was collected to the time it is presented in court or used as part of an investigation.
The chain of custody is important to ensure the integrity of the evidence and to demonstrate that it has not been altered, tampered with, or contaminated during the investigation.
The chain of custody should include details such as the date and time the evidence was collected, the name of the person who collected it, the method of storage, and any analysis or testing that was performed.
This information is used to build a clear and comprehensive record that can be used to demonstrate the reliability of the evidence and support the findings of the investigation. In digital forensics, it is essential to maintain a secure and well-documented chain of custody to ensure the validity of the evidence and support the findings of the investigation.
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A bus travelling at 80km/h accelerates for 12 s to a speed of 100km/h. What was the acceleration
Answer:
0.463 m/s^2
Explanation:
I calculated the answer using my
a 34.0 kg child runs with a speed of 2.80 m/s tangential to the rim of a stationary merry-go-round. the merry-go-round has a moment of inertia of 510 kg m? and a radius of 2.31 m. when the child jumps onto the merry-go-round, the entire system begins to rotate. what is the angular speed of the system?
The final angular speed of the system is 0.4424 rad/s.
Before the child jumps onto the merry-go-round, the system consists of only the merry-go-round and has zero angular velocity.
When the child jumps onto the merry-go-round, the system becomes a composite object consisting of the child, the merry-go-round, and the rotational motion of the two.
Let's first calculate the angular momentum of the system before the child jumps onto the merry-go-round. Since the system is not rotating, its initial angular momentum is zero.
When the child jumps onto the merry-go-round, the system conserves angular momentum. That is, the total angular momentum of the system before the child jumps must be equal to the total angular momentum of the system after the child jumps.
Let's use the conservation of angular momentum to solve for the final angular speed of the system:
Initial angular momentum = 0
Final angular momentum = (Iω)final = (Iω)merry-go-round + (Iω)child
where I is the moment of inertia of the merry-go-round, ω is the angular velocity, and the subscripts "merry-go-round" and "child" refer to the respective contributions from each object.
We can find the angular momentum of the child using the formula L = mvr, where m is the mass of the child, v is the tangential velocity, and r is the radius of the merry-go-round.
Lchild = mchildvchildr = (34.0 kg)(2.80 m/s)(2.31 m) = 225.48 kg m^2/s
Since the child was initially moving tangentially to the merry-go-round, the direction of their angular momentum is perpendicular to the direction of the angular momentum of the merry-go-round.
Therefore, we can find the total angular momentum of the system by taking the vector sum of the angular momentum of the merry-go-round and the angular momentum of the child. We can use the right-hand rule to determine the direction of the total angular momentum, which is out of the page.
Final angular momentum = (Iω)final = (510 kg m^2)(ω) + 225.48 kg m^2/s
Since the total angular momentum is conserved, we can set the initial and final angular momenta equal to each other:
0 = (510 kg\(m^2)(\)ω) + 225.48 kg \(m^2/s\)
Solving for ω, we get:
ω = -225.48 kg m^2/s ÷ (510 kg \(m^2\)) = -0.4424 rad/s
The negative sign indicates that the direction of the angular velocity is opposite to the initial direction of the child's motion.
Therefore, the final angular speed of the system is 0.4424 rad/s.
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Drew likes to take the long way to school each morning. He walks 3 blocks west and then 3 blocks north to arrive at the school. Today he is running late and decides go directly to school to save time. (Assume there is nothing obstructing his path.) If one block is 310 feet, how many feet will he travel if he goes directly to school
If one block is 310 feet, he will travel 1,315.21 feet if he goes directly to school.
What is foot?The British imperial and American customary systems of measurement both use the foot as a unit of length (standard symbol: ft). One alternate symbol that is frequently used is the prime symbol, ′. Since the International Yard and Pound Agreement of 1959, one foot is precisely equal to 0.3048 metres. One foot equals 12 inches in both customary and imperial units, while one yard equals three feet.
The "foot" has historically been a component of numerous regional systems of units, including the Greek, Roman, Chinese, French, and English systems. It varied in length from nation to nation, city to city, and occasionally trade to trade. Its length was typically between 250 mm and 335 mm, and it was typically, but not always, divided into 12 inches.
Given that:
Total block in north = 3
Total block in west = 3
1 block = 310 feet
Then,
Total distance in north = 3 × 310 = 930 feet
Total distance in west = 3 × 310 = 930 feet
Distance travelled by Drew = √(Total distance in north² + Total distance in west²)
Distance travelled by Drew = √(930² + 930²)
Distance travelled by Drew = √(864,900 + 864,900)
Distance travelled by Drew = √1,729,800
Distance travelled by Drew = 1,315.21 feet
Thus, If one block is 310 feet, he will travel 1,315.21 feet if he goes directly to school.
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10th
According to the Law of Conservation of Energy, when one form of energy is
transformed into another,
energy is lost in the process
5
According to Law of Conservation of energy ,
One form of energy is transformed into another form of energy and there is no loss of energy in the transformation process.
The law of conservation of energy states that the energy can neither be created nor be destroyed only converted from one form of energy to the other form of energy means that the system always has the same amount of energy , unless its's added from the outside.
The only way to use energy is to transform energy from one form to another form.
example - Heat energy is transformed into Kinetic and Potential energy.
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What are the northern lights?
Answer:
The northern lights, one of several astronomical phenomena called polar lights (aurora Polaris), are shafts or curtains of colored light visible on occasion in the night sky.
Explanation:
Which law or theory is supported by the fact that different frequencies of sound waves maximally deform different parts of the basilar membrane?
a. opponent-process theory b. impulse frequency theory
c. place theory
d. the all-or-none law
The correct answer to your question is c. place theory among the law or theory is supported by the fact that different frequencies of sound waves maximally deform different parts of the basilar membrane .
The law or theory supported by the fact that different frequencies of sound waves maximally deform different parts of the basilar membrane is place theory.
The correct answer to your question is c. place theory. Place theory is supported by the fact that different frequencies of sound waves maximally deform different parts of the basilar membrane.
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A car rolls down a ramp in a parking garage. The horizontal position of the car in meters over time is shown below. Graph of horizontal position x (in meters) on y axis and time (in seconds) on x axis. The initial position is -3 m at t=0 s, and the position increases linearly to 3 m at t=8 s. Then the position is constant at 3 m until t=16 s, then increases linearly to 9 m at t=24 s.
Answer:
Explanation:
At t = 0 , X = -3 m
At t = 8s , X = + 3 m .
At t = 16s , X = + 3 m
At t = 24 s , X = + 9 m
Graph is shown in the attached file .
The displacement of the car between 8 seconds and 24 seconds is 6 m.
The given parameters:
Initial position of the car, x₁ = -3 m, time = 0 sSecond displacement, x₂ = 3 m, time = 8.0 sThird displacement, x₃ = 3 m, time = 16 sFinal displacement, x₄ = 9 m, time = 24 sThe displacement of the car between 8 seconds and 24 seconds is calculated as follows;
the position of the car at 8 seconds = 3 m
the position of the car at 24 seconds = 9 m
The displacement of the car = 9m - 3m = 6 m
Thus, the displacement of the car between 8 seconds and 24 seconds is 6 m.
The complete question is below:
What would be the displacement of the car between eight seconds and 24 seconds?
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Explain what the core muscles do and why it's important to have a strong set of core muscles.
Answer:
Since your spine runs by your core, having a strong core will help protect and stabilize your spine, and you're also are able to control movements such as walking or standing better with a strong core.
A 240 V circuit has 20 A flowing through it. How much power is it using?
Explanation:
P = IV
V = 240
I = 20
P = ?
P = 240 × 20
P = 4800 watts
The focal length of a converging lens is the distance.
The distance from the lens to the focal point is called the focal length.
What is a converging lens?Converging lenses, commonly referred to as convex lenses, have thicker centers and narrower upper and lower margins. The edges are outwardly curled. This lens has the ability to concentrate a beam of parallel light rays coming from the outside onto a spot on the opposite side of the lens. Convex lenses come in three different varieties, each with a unique structure.Convex mirrors are used in a car's side wing mirrors and rearview mirrors. This is so that the driver can see a wider area than the average person because of the distorted image that is created. aids the driver in keeping a closer eye on the road and vehicles in the back.Due to the greater field of view, it provides than usual, it is also utilized in driving mirrors and store security mirrors. Using blind corner mirrors to see around blind corners on the road is advantageous. By being able to see the traffic around tight turns, it improves road safety.To learn more about converging lens, refer to
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Image caught
on Screen is called
Answer:
Real Image
Explanation:
Images which are formed on the screen by the actual intersection of light rays are called real images.
Answer:
Virtual imageExplanation:
Virtual image can be caught on a screenhope this helps you.
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