Answer:
The question isn't complete. Do you want to find the tension in the two Cables?
On which does mass depend?.
While an object's weight is affected by gravity, its mass is not.
A thing's mass is the total amount of its constituent parts. Mass is a scalar quantity with a single value and no directionality.
mg = mass (N).
Gravity causes variations in acceleration that cause an object's weight to vary from one place in space to another. Weight is a vector quantity, hence it has a magnitude and a direction. As a result, weight depends on gravitational pull.
This leads us to the conclusion that while an object's mass is not affected by gravity, its weight is.
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The anode of an x ray tube i at a potential of 125 000 V with repect to the cathode. A) How much work i done by the electric force when an electron i accelerated from the cathode to the anode? b) If the electron i initially at ret, what kinetic energy doe the electron have when it arrive at the anode?
A) The work done by the electric force on an electron is equal to the change in its electrical potential energy, which is equal to the potential difference between the cathode and the anode multiplied by the charge of the electron.
W = qV = (1.6 x 10^-19 C)(125 000 V) = 2 x 10^-14 J
B) The kinetic energy of an object is given by the equation KE = 1/2 mv^2. If the electron is initially at rest, its final kinetic energy is equal to the work done on it by the electric force, since all the energy used to accelerate it is converted to kinetic energy.
KE = W = 2 x 10^-14 J
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Does Faster internet reduce latency?.
Yes, Internet latency is decreased by fast internet speed.
Internet transmission rate. Your internet connection speeds might impact your ping in addition to the different elements that determine how good your ISP is or latency. Your ping will decrease as a result of faster data transmission and reception.
A slower internet connection would result in noticeably lower FPS no matter what game you were playing. A slower internet connection results in more ping, which can make everything lag and lead players to become immobile. Anything under 100ms is ok for browsing and streaming in general. You should aim for a maximum of 50ms, but under 30ms would be great for serious play.
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a physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time.
if two balls are launched from a height. One is horizontally and other is vertically downwards, then both of the balls will touch the ground exactly at the same time.
When a ball is launched from a height than at some angle then its velocity(v) can be considered as divided into two components: One is vertical and the other is horizontal.
v₁ = vcosθ (horizontal component)
v₂ = vsinθ (vertical component)
Vertical component is always subjected to the acceleration due to gravity. Which is same for every vertical motion. Since the dropping height is same for both the balls, so their travelling time in the vertical downward direction will also be same. So they will touch the ground exactly at the same time.
--The given question is incomplete, the complete question is
"A physical demo launches a ball horizontally while dropping a second ball vertically at exactly same time from same height. Which ball will touch the ground first?"--
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Is magnitude always positive?.
The magnitude is always positive because magnitude is the absolute value and it cannot be negative as the minus sign in a vector means direction.
A force that is negative implies that it is moving in the opposite way of a reference direction. The magnitude of a force, however, cannot be negative. The component of the vector that lacks direction is its length (positive or negative). The summation's values are squared in the formula, making them positive. It just takes one step to determine the magnitude of a simple integer. The next step is to find the number's absolute value. When dealing with simple integers, the absolute value can be thought of as the "positive" of each number. This is the one and only instant when you can disregard the negative sign. The minus sign is deleted when the magnitude or absolute value is being discussed. In the realm of magnitude and absolute value, negative numbers are always considered positive.
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what type of magnet is used for the coil in a relay?
Electromagnet is the type of magnet which is used in the coil in a relay.
What kind of magnet does a relay use?Two or more electromagnets in the relay are energized by the relay coil. The static iron core is positioned between the electromagnet. The rotational magnetic field is produced by the coil that is wound on the electromagnet.
A relay magnet: what is it?The activating or primary side of a relay is another synonym for the magnetic, coil system, or motor unit. It is made up of every part required to transform the electrical energy from the primary side into the mechanical force needed to open the contacts and switch the secondary circuit.
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How do you find the maximum gravitational force between two objects?.
The maximum gravitational force between two objects can be found by the given formula:
Gravitational force= (Gravitational constant X Mass of the first object x Mass of the second object) / (Distance between the centre of two bodies)².
In Physics, the gravitational force is one of the types of forces that attracts any two objects with mass. The other name of gravitational force is an attractive force as it pulls the two objects towards each other.
Newton's law of gravitation states that every object that exists in our universe is pulled by other objects. the other type of forces are the electromagnetic force, weak force, strong force etc.
The gravitational force on earth is maximum at the poles as the earth is an oblate spheroid, and that means it bulges out in the middle (the equator). This means that the poles of the earth ends up a little closer to the center of gravity as compared to other positions.
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An object is shot upwards, from the ground, with an initial velocity of 120
m/s. How high will it be after 4.0s?
480 m
402 m
380 m
302 m
We can use the kinematic equation: h = vit + 1/2g*t^2 to determine the height of an object shot upwards with an initial velocity of 120 m/s after 4.0s.
Where h is the height, vi is the initial velocity, t is the time, and g is the acceleration due to gravity (approximately 9.8 m/s^2).
h = 1204 + 1/29.8*4^2
h = 480m
The height of the object after 4.0s is 480m. So the answer is 480 m.
help!!! Which of the following statements are examples of negative social impacts of some technologies? (Choose all that apply)
a.Improvements in communication technology allow people to share new ideas and scientific knowledge.
b.People may spend so much time learning and using new technology, that it gets in the way of doing tasks.
c.The burning of fossil fuels releases compounds into the air that can be harmful to breathe.
d.Communication technology can cause people to undervalue face-to-face communication.
e.People can become unnecessarily dependent on technology to complete tasks they used to do themselves.
c.The burning of fossil fuels releases compounds into the air that can be harmful to breathe.
d.Communication technology can cause people to undervalue face-to-face communication.
e.People can become unnecessarily dependent on technology to complete tasks they used to do themselves.
What is the formula of total weight?.
What are the 4 steps to solving any physics problem?.
what is the loudest sound ever recorded and what was its specific measurement?
The loudest sound ever recorded was the Krakatia volcano eruption and its specific measurement is 194dB.
The loudest sound ever recorded was due to a volcanic eruption that occurred on an Indonesian island named Krakatoa. The eruption occurred on 27th August 1883. The explosion led to a tsunami with waves as high as 46m thereby causing almost two-thirds of the island to collapse. The height of the waves was so high that they could rock the ships as far as South Africa. At a sound as high as 194 dB, a complete vacuum is created as the energy in the waves of sound starts distorting. At this position the sound waves while moving start pushing the air rather than moving through the air. This pushing away of the air leads to formation of the pressurized wall of moving air.
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What is momentum Class 9 very short answer?.
Momentum is characterised as the intensity of a body's motion. The formula is "mass times velocity."
As momentum depends on velocity, it also depends on the body's direction of motion. Since velocity is a vector and mass is a scalar, momentum is a vector quantity.
Mass times speed equals momentum.
Momentum can be viewed as a body's "power" while it is moving, or the amount of force it can exert on another body. For instance, a baseball that is thrown quickly and with a tiny mass could have the same momentum as a bowling ball with a heavy mass travelling very slowly.
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A flat piece of paper has a mass of 5 grams. When the paper is crumpled into a ball, the mass of the crumpled paper is
answer choices
O much more than the flat
O slightly more than the flat
O the same as the flat
A flat piece of paper has a mass of 5 grams. When the paper is crumpled into a ball, the mass of the crumpled paper is D) the same as the flat paper.
Definition of MassMass was first discovered by Sir Isaac Newton through research on the gravitational and inertial properties of objects he developed. Newton was an English physicist, mathematician, chemist, astronomer, natural philosopher, and theologian.
Mass can be interpreted as a measure of the number of particles contained in a substance or object. Mass is also one of the principal quantities that shows the size of the inertia of an object.
Mass becomes an intrinsic property of an object, so that wherever the object is, the mass value will remain the same. If it is based on the effect of the object on the direction of motion, mass is classified as a scalar quantity (only has value).
Mass has units in the International System , namely kilograms (kg). These units can be further reduced to grams (g), or milligrams (mg). Generally, mass is measured using a balance, for example a three-arm O'hauss balance, a digital balance, and a two-arm analytical balance.
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a hollow metallic sphere of radius 10 cm is given a charge of 3.2 * 10 ( to power -9 ) C. what is the electric intensity at a point 4 cm from the center
The electric intensity at a point 4 cm from the center is 2,880 N/C.
What is the electric intensity of the charge?
The electric field intensity of the charge is calculated by applying the following formula as show below.
E = F / q
E = ( kq ) / ( r² )
where;
K is the coulomb's constantq is the magnitude of the charger is the distance of the chargeThe electric intensity at a point 4 cm from the center is calculated as;
E = ( 9 x 10⁹ x 3.2 x 10⁻⁹ ) / ( 0.1² )
E = 2,880 N/C
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What is the difference between rotation and revolution explain with the help of an example?.
Rotation is the movement of an object on its own axis whereas revolution is its movement around another object.
A rotation is the circular movement of an object around a pivot point. A rotation axis is a line that three-dimensional objects such as the earth, moon, and other planets always rotate around. If the axis passes through the centre of mass of the body, the body is said to rotate or spin.
Rotation is frequently used as a synonym for revolution. In many fields, such as astronomy and related subjects, however, revolution is referred to as an orbital revolution. It is used when one body moves around another, whereas rotation is when one body moves around the axis. The Moon, for example, revolves around the Earth, and the Earth revolves around the Sun.
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Calculate the frequency of ultraonic wave that can be generated by nickel rod of length 4 cm Young' modulu of nickel i 207 gpa denity of nickel i 8900kg\m^3
The frequency of the ultrasonic wave generated by a nickel rod of length 4 cm is 415 kHz.
What is Frequency?Frequency is the number of times a phenomenon occurs within a given period of time. It is measured in hertz (Hz), which is equal to one occurrence per second. Frequency is used in a variety of fields, including sound, radio waves, light, and electricity. It is a measure of how often a certain event occurs, and it is often used to measure oscillations in a system. Frequency is an important concept in physics and mathematics, and it is used to calculate the speed of waves and the behavior of particles.
The frequency of an ultrasonic wave that can be generated by a nickel rod of length 4 cm can be calculated using the speed of sound in Nickel (V), Young’s Modulus (E) and density (ρ).
The speed of sound in Nickel (V) is calculated using the formula V = √(E/ρ).
Therefore, V = √((207 GPa)/(8900 kg/m³))
V = 3320 m/s
Now the frequency (f) of the ultrasonic wave generated can be calculated using the formula:
f = V/λ
where λ is the wavelength of the wave.
The wavelength (λ) is calculated using the formula:
λ = 2L
where L is the length of the rod.
Therefore, λ = 2*4 cm = 8 cm
Now, f = 3320 m/s/8 cm
f = 415 kHz.
Therefore, the frequency of the ultrasonic wave generated by a nickel rod of length 4 cm is 415 kHz.
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What is mass in class 9?.
What is the main difference between torque and force?.
Answer:
Torque is a measure of the force that can cause an object to rotate about an axis. Force is what causes an object to accelerate in linear kinematics, torque is what causes an object to acquire angular acceleration.
An object of mass 178 kg moves in a smooth
straight tunnel of length 2640 km dug through
a chord of a planet of mass 4.48 x 1024 kg and
radius 8.26 x 106 m.
y
F/m
Find the effective force constant of the har-
monic motion.
The value of gravitational
constant is 6.67259 x 10-¹1 Nm²/kg².
Answer in units of N/m.
Answer: If the mass of the object is 178 kg: k = 9.44*10^-5 N/m
Answer for the mass being 82 kg is not complete, because G was not given.
Explanation:
If the mass of the object is 178 kg:
The mass of object (m) = 178 kg
Length of tunnel (l) = 2640 km
***The minimum displacement (its amplitude) of object from its mean position,
A = 2640/2 = 1320 km = 1.320 * 10^6 m
Mass of planet (M) = 4.48 * 10^24 kg
Its Radius (R) = 8.26 * 10^6 m
Gravitational constant (G) = 6.67259 * 10^-11 Nm^2/kg^2
Now, restoring force for given hormonic motion will be
Vector of F = -((GMm)/R^3) * x
Comparing with, vector of F = -k*x, we get
k = (GMm)/R^3
k = (((6.67259*10^-11)*(4.48*10^24)*178)/(8.26*10^6)^3)
k = ((5320.99017*10^(-11+24))/(563.559976*10^18))
k = 9.44*10^(13-18)
k = 9.44*10^-5 N/m
If the mass of the object is 82 kg:
The mass of object (m) = 82 kg
Length of tunnel (l) = 2430 km
***The minimum displacement (its amplitude) of object from its mean position,
A = 2430/2 = 1215 km = 1.215*10^6 m
Mass of planet (M) = 4.16 * 10^24 kg
Its Radius (R) = 7 * 10^6 m
Gravitational constant (G) not given in the photo
Now, restoring force for given hormonic motion will be
Vector of F = -((GMm)/R^3) * x
Comparing with, vector of F = -k*x, we get
k = (GMm)/R^3
k = ((G*(4.16*10^24)*82)/(7*10^6)^3)
Remember that when multiplying two values with exponents, you add the exponents together!
k = ((3.4112*10^26 * G)/(3.43*10^20))
Insert G to solve!
Is Newton's third law always true?.
Newton's third law does not hold always true.
Newton's third law, also known as the law of action and reaction, states that for every action force, there is an equal and opposite reaction force. This means that if object A exerts a force on object B, object B will exert an equal and opposite force on object A.
This is often demonstrated with examples such as a person pushing a wall or a rocket being propelled forward by the force of its exhaust.
One exception to this law is when forces such as friction and air resistance act on an object. These forces are not equal and opposite to the action force and can cause the reaction force to be less than the action force.
Another exception is when Newton's laws are applied in the realm of quantum mechanics, the laws of classical mechanics such as Newton's laws, no longer hold true.
In the quantum world, particles don't have definite positions or velocities, and they can exist in multiple places at once. As a result, the laws of classical mechanics do not apply to the quantum world.
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2. What is the kinetic energy of a car with a mass of 1050 kg and a velocity of 5 m/s?
The kinetic energy of a car with a mass of 1050kg and a velocity of 5m/s will be 13,125 joules or 13,125 kg⋅m2⋅s−2.
As we know, the formula to find the kinetic energy in a system is [tex]1/2 m v^{2}[/tex] where m is the mass of the system and v is the given velocity at the moment. So , by putting the given data in the equation, we get :
⇒[tex]1/2mv^{2}[/tex]
⇒1/2 x 1050 x 5 x 5
⇒525 x 25
⇒13,125
∴ The Kinetic energy of the car will be 13,125 Joules where joule is the SI unit of energy.
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Is there an equal and opposite reaction for every action?
Answer: Yes it is true according o newton third law of motion
What is Newton Third Law of motion ?
--According to Newton's third law of motion, every action has an equal and opposite reaction.
--These two forces act on two different bodies.
-- Example,
1- while swimming, you push the water backward. The water, in turn, pushes you forward.
--Similarly, while walking, you push the ground backward.
-- The ground then exerts a reaction force on you in the forward direction.
What is Newton Second Law of motion ?
--Newton's second law of motion states that “Force is equal to the rate of change of momentum.
--For a constant mass, force equals mass times acceleration.
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What is the G stand for in Newton's universal gravitational formula?.
Newton included a constant known as the universal gravitational constant since we always need to introduce one to remove "G" proportionality.
Every particle in the cosmos is drawn to every other particle by a force that is directly proportional to the product of their masses and inversely proportional to the square of their separation, according to Newton's Law of Universal Gravitation.
F∝ Mm / r^2.
The gravitational constant, which is a proportionality constant, is what Newton utilized to derive his law of gravitation. The universal gravitational constant (UGC) is the force of attraction between any two unit masses separated by a unit distance.
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A potter’ wheel move from ret to an angular peed of 0. 40 rev/ in 36. 1. Auming contant angular acceleration,
what i it angular acceleration in rad/2
?
Anwer in unit of rad/
2
The constant angular acceleration is 0.0069 [tex]rad/s^{2}[/tex].
Angular Acceleration is defined as the time rate of change of angular velocity. It is usually expressed in radians per second per second. The angular acceleration is also known as rotational acceleration. It is a quantitative expression of the change in angular velocity per unit time.A varying velocity results in acceleration. If an object is spinning and its speed is changing, then we say it is accelerating angularly.Angular acceleration is measured in units of angle per unit time squared (which in SI units is radians per second squared), and is usually represented by the symbol alpha .Given:
Angular speed = 0.40 rev/s
Time = 36.1 s
So Angular acceleration = [tex]0.04 rad/s * \frac{2\pi rad}{1 rev} * \frac{1}{36.1} = 0.0069 rad/s^{2}[/tex]
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What is Newton's 2nd law called?.
Newton's second law, also known as the law of acceleration or the force law, states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass.
It means that the force applied to an object is equal to the product of its mass and acceleration.
In simple terms, it says that the more force applied to an object, the greater its acceleration will be, and the more massive an object is, the less it will accelerate for a given force.
This law is used to calculate the motion of objects under the influence of forces and is important in explaining the behavior of objects in motion. It can be represented mathematically as F = ma, where F is the net force acting on an object, m is the mass of the object and a is its acceleration.
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What is the SI unit of linear momentum Mcq?.
The SI unit representing momentum is kilograms per second. Strength or force acquired by motion or a sequence of occurrences
In real life, what does momentum mean?Mass in motion is a definition of momentum. All things have mass, thus if something is moving, it must have momentum because its mass is in motion. How much material is going and how quickly it is moving are the two factors that determine how much momentum an object has.
What does the word momentum mean?Increasing forward motion is often referred to as momentum. The speed of a boulder riding down a hill increases. The economy, a successful team, or a wonderful concept all have positive effects. You must multiply the mass by the velocity of an object to determine its physical momentum.
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What is ballistic in simple words?.
Ballistics is the study of projectile propulsion, flight, and impact. It is separated into a number of disciplines. The subjects of internal and external ballistics, respectively, are projectile propulsion and flight.
Intermediate ballistics refers to the phase that exists between these two regimes. Ballistics is the study of how projectiles are fired, how they fly, and how they strike a target. It is frequently related to rockets, guided missiles, and projectiles launched from weapons.
The word "ballistic" refers to how an object travels through space. Typically, it refers to projectiles fired by weapons, such as bullets or rockets. Get out of the way if a ballistic missile is headed your way! A ballistic missile is only guided during its initial launch.
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How long will it take a peron on a kateboard to travel 45 m and attain a peed of 7 m/ from ret ?
Here, a denotes acceleration, t denotes time, and u and v denote beginning and ultimate velocities, respectively. u = v + at.
Can you use a skateboard to travel?In carry-on luggage, skateboards are permitted. If there are any size or weight limits, please check with your airline additional forbidden itemsSkateboards that fit under seats do not need to be under bags or covers, but they must be stored with their wheels up to prevent rolling. A skateboard must be packed in a bag or have the wheels covered if it is to be stored in an overhead container (trash bag is acceptable).As the skateboarder comes to a stop, his final velocity will be zero. To calculate the value of time, replace the necessary values (t).0 m/s = 45 m/s + 7 m/s t t = 6.42 s.
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Find the modulation index of an AM wave having 8V variation where maximum amplitude of the AM wave i 9V
Correct option is (A) 0.8
What is Modulation Index ?
-- Modulation index is defined as the ratio of the amplitude of the modulating wave to that of the carrier wave
- Modulation index: m = Am / Ac
: Given 2Am = 8 Am + Ac = 9
⇒ Ac = 5
∴ m = 4/5 = 0.8.
What is Electromagnetic Wave ?
-'Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field.
-- In other words, EM waves are composed of oscillating magnetic and electric fields.
What is Magnetic Field?
-- A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.
--A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.
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