The gravitational force is altered more by an increase in the separation between the objects than by an equivalent increase in mass.
It is based on the mass and gravitational acceleration of the item. Mass is a fundamental, immutable feature. Weight depends on gravitational force, which is a force. The mass has a direct relationship with this force. The force of gravity will be stronger the more mass an item has. As a result, when we compare the distance traveled by objects of various masses, gravity is shown to be irrelevant. Air resistance, often known as drag, is a significant component of the force.
The slope tells us how much force, in newtons, is applied to each kilogram of mass. A thing's mass is a measure of how much matter there is in it. This is a physical trait that cannot be altered. Mass cannot be created or destroyed. The combination of mass and gravitational acceleration produces weight.
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What is time travel and is it possible?
Answer:
According to NASA, time travel is possible, just not in the way you might expect. Albert Einstein's theory of relativity says time and motion are relative to each other, and nothing can go faster than the speed of light, which is 186,000 miles per second. Time travel happens through what's called “time dilation.
Explanation:
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What is angular momentum Mcq?.
The angular momentum of a particle rotating around an axis is defined as the moment of the particle's linear momentum around that axis.
What is angular momentum?Angular momentum is the rotational equivalent of linear momentum in physics. It is an important physical quantity because it is a conserved quantity—in a closed system, the total angular momentum remains constant. Both the direction and magnitude of angular momentum are conserved. The property of any rotating object given by moment of inertia times angular velocity is defined as angular momentum. It is the property of a rotating body determined by the product of the rotating object's moment of inertia and angular velocity.
Here,
The moment of a particle's linear momentum about an axis is defined as its angular momentum. The product of linear momentum and the perpendicular distance of its line of action from the axis of rotation is used to calculate it.
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what will be the acceleration, if the vehicle starte form rest and the velocity reaches 30m/s and after 6 sec
Explanation:
Acc=change in velocity/time
a=30-0 / 6
a =30/6
a = 5m/s^2
In a physics lab experiment, a spring clamped to the table shoots a 19 g ball horizontally. When the spring is compressed 20 cm, the ball travels horizontally 5.2 m and lands on the floor 1.6 m below the point at which it left the spring. What is the spring constant?
Answer:
The spring constant is 907.2 N/m
Explanation:
v^2 = u^2 + 2as
Where:
v = final velocity
u = initial velocity
a = acceleration
s = displacement
As the spring is clamped to the table, the only displacement is horizontal, so the only acceleration is due to gravity. The final velocity is 0, as the ball lands on the floor. Therefore, we can use the equation of motion to determine the initial velocity of the ball:
v^2 = u^2 + 2as
0 = u^2 + 2g(1.6 m)
u = √ (2g(1.6 m))
We know that acceleration due to gravity is 9.8 m/s^2, so:
u = √ (2 * 9.8 * 1.6) = 4.6 m/s
Now we can use the conservation of energy to solve for the spring constant.
The spring constant can be determined by using the equation:
PE = 1/2 kx^2
where PE is the potential energy stored in the spring, k is the spring constant, and x is the compression of the spring.
KE = 1/2 mv^2
where KE is the kinetic energy of the ball, m is the mass of the ball, and v is the initial velocity of the ball
The sum of the potential energy stored in the spring and the kinetic energy of the ball is conserved, so:
1/2 kx^2 = 1/2 mv^2
We can now substitute the values we know into the equation:
1/2 k * (0.2)^2 = 1/2 * (19g) * (4.6m/s)^2
Solving for k:
k = (19g * (4.6m/s)^2 ) / (0.2m)^2
k = 907.2 N/m
Note that the unit of mass is gram (g) and it needs to be converted to kg to make the units consistent.
What is momentum example?.
A truck loaded with goods has a large mass, so it have to slow down before a stop light as it has a large momentum with the same velocity, making stopping difficult.
What is momentum?A body's amount of motion is referred to as momentum. Since velocity and the direction of a body's motion have an impact on momentum, it is measured by "mass velocity". Given that mass is a scalar variable and velocity is a vector, momentum is a vector quantity. Mass multiplied by velocity equals momentum. Momentum is a body's "power" while it is moving, demonstrating how much force it can exert on another body. For instance, a baseball (small mass) thrown quickly can have the same momentum as a bowling ball (big mass) travelling slowly (low velocity) (high velocity).
Here,
Because a truck loaded with goods has a large momentum with the same velocity, it must slow down before a stop light, making stopping difficult.
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Why is reducing latency important?.
Customers demand to communicate with technology in real time without any delays, hence low latency is essential. Users may stop interacting with a platform due to problems with high latency and time delays.
then switch permanently to a different programme.
One of the biggest causes of user service abandonment is poor latency. To put it clearly, excessive latency can result in enormous losses in revenue and a declining user base. One of the most crucial elements in the success of your application is eliminating latency.
Numerous physical obstacles, such as internet service, internet speed, or particular IP networks, might have an impact on latency. Businesses and IT specialists have consistently developed and implemented methods to enhance network speeds and the overall user experience. This has often taken the shape of data distribution, expanding the global data storage capacity, and enhancing network connectivity.
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A light-year is a unit generally used to express the distance that light travels in one year. Which of these can be expressed in light years?.
A light-year is a unit generally used to express the distance that light travels in one year, the distance between two stars can be expressed in light years.
What is the name of the length that light travels in a year?Light-years are units used to express the distance that light travels in a year. Light travels through interstellar space at a speed of 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.
A light-year is a unit of measurement for distance rather than time (as the name might imply). A light-year is the distance a light beam travels in one Earth year, which is equivalent to roughly 6 trillion miles (9.7 trillion kilometers).
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Complete question is " A light-year is a unit generally used to express the distance that light travels in one year. Which of these can be expressed in the light years?
A] the age of a rock
B] the distance between two stars
C] the speed at which the earth revolves around the sun
D] the time earth takes to complete a revolution around the sun".
difference between external resistor and internal resistor
Answer:
The resistance within a battery or other voltage source that causes a drop in source voltage when current is present is referred to as internal resistance. The resistance present in the external circuit, on the other hand, is referred to as external resistance.
How is torque different from work even though the dimensional formula of is same as that of work?.
Torque and work have the same dimension formula but only work is expressed in the SI unit of Joule. Torque is a vector quantity and work is a scalar quantity.
Torque in angular motion is equivalent to what force is in linear motion. In other words torque cause the angular change in and makes the object to rotates in a circular path around its own axis of rotation. It is formulates as T = F ×R. Where F is the force, R is the radius of circular path. its dimension will be [MLT⁻²] × [L] = [ML²T⁻²].
On the other hand, work is the product of force vector(F) and displacement vector(d). Work is said to be done when the object gets displaced in the direction of the force applied. Its SI unit is Joule.
W = F × d × sinθ
Where θ is the direction of force with respect to the displacement.
Its dimension would be, T = [MLT⁻²] × [L] = [ML²T⁻²]
So the dimension formula for both will be the same.
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111. When a meteorite strikes Earth, the meteorite or its pieces remain on or near Earth's surface. Suppose a giant object from space enters the solar system and collides head-on with Earth as Earth travels in its path around the Sun.
If the object's speed is twice Earth's speed, how massive must it be to reduce Earth's orbital velocity by even a hundredth of a percent? Annotate your calculation with a description of your approach.
Answer:
Explanation:
To calculate the mass of an object that would reduce Earth's orbital velocity by even a hundredth of a percent, we need to use the conservation of momentum principle. According to this principle, the total momentum of a system remains constant if no external forces act on it.
In this scenario, we can consider the Earth and the object as a closed system. The initial momentum of the system is Earth's momentum, and the final momentum is Earth's momentum after the collision.
Let's assume the mass of the Earth is M_E and the initial velocity of Earth is V_E. After the collision with the object, the final velocity of Earth is V_E' . The mass of the object is M_O, and its velocity is V_O (twice Earth's velocity)
The conservation of momentum principle states that:
M_E * V_E = M_E * V_E' + M_O * V_O
To reduce Earth's orbital velocity by even a hundredth of a percent, we can assume that V_E' = V_E - (0.0001 * V_E)
Therefore,
M_E * V_E = M_E * (V_E - (0.0001 * V_E)) + M_O * (2 * V_E)
Rearranging this equation we can find the mass of the object M_O
M_O = M_E * (V_E / (2 * V_E - 0.0001 * V_E))
To get the exact mass of the object, we need to know the mass of the Earth and the velocity of Earth, which are not provided in the question. However, this calculation will give an approximate mass that the object would need to have in order to reduce Earth's orbital velocity by even a hundredth of a percent.
how many days did the trekkers predict it would take them to walk from phakding to everest base camp
It will take about 12 days for the trekkers predict to walk from phakding to Everest base camp.
What is Trekking?This is referred to as a form of movement which consists of walking for several days or several weeks and being entirely or partially self-sufficient.
The standard Everest Base Camp Trek is 130km round trip and is usually divided into 12 days which includes time and space for acclimatization to the region and then we have 8 days to get to Everest Base Camp and 4 days to get back which is therefore the reason why ythe predicted days will be 12 and is the correct choice.
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What is the unit of the distance Mcq?.
According to the International System of Units, the SI unit of distance is a metre. Surprisingly, by using this as the base unit and some equations, many other derived units or quantities such as volume, area, acceleration, and speed are formed.
What is distance?The magnitude or size of displacement between two positions is defined as distance. It is important to note that the distance between two points is not the same as the distance traveled between them. The total length of the path traveled between two points is referred to as the distance traveled. The total length of an object's actual path is referred to as distance. The displacement of an object between two points is the straight line (shortest) distance between those points, directed from one position to the other. The SI unit for measuring distance and displacement is the meter (m).
Here,
According to the International System of Units, a metre is the SI unit of distance. Surprisingly, by using this as the base unit and some equations, many other derived units or quantities, such as volume, area, acceleration, and speed, can be formed.
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Your spaceship is equipped with advanced sensing equipment and you have measured the following information based on your current situation.
The answer is
1 . The force of gravity on the ship at that orbit be using the early measurements be 5.435 × 10^5 N..
2. The acceleration of your lander due to gravity be 4.94 m/s^2..
Force of Gravity
The gravitational force, which is what pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth. Your body is kept on the ground by this force. However, all mass-bearing objects are pulled toward one another by gravity.
Super-Earth-sized exoplanet Proxima Centauri b revolves around a M-type star. It has an Earth-mass of 1, orbits its star every 11.2 days, and is 0.048 AU away from it. In 2016, news of its finding was released.
Given that,
Planet Proxima Centauri B has a mass of approximately7.6x10^24 kg.
The ship lander has a mass of approximately 1.1x10^5 kg.
stable orbit radius of 9000000 m from the center of planet Proxima Centauri B.
1. Using Newton's Law of Universal Gravitation, the force of gravity on the ship at that orbit be using the early measurements = GMm/r²
= (7.6 × 10⁻¹¹)×(7.6x10^24)(1.1x10^5)/(9000000)² N
= 5.435 × 10^5 N.
2. the acceleration of your lander due to gravity: a = F/m
= 5.435 × 10^5 N/ 1.1x10^5 kg.
= 4.94 m/s^2.
3.The planet's mass distribution might not be uniform, which is one of the potential factors that might explain the discrepancy between expected and actual figures. Therefore, the planet's centre of mass is not found at the geometric centre.
The orbiting path of gravity could be elliptical rather than circular.
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Write the equation for work. Then insert the known quantities
Work can be calculated with the equation given as Work = Force × Distance
What is work?When a force acts on an object to cause a displacement, it was said that work was taking place. Three variables must be known in order to calculate the work when a force causes an object to be displaced.
Work = Force × Distance is the formula for calculating work. The joule (J), also known as the Newton meter (N m), is the SI unit for work. When an object is moved over a distance of 1 m with 1 N of force, one joule is equal to the amount of work that is accomplished.
To determine the amount of work, three quantities must be known. The force, the displacement, and the angle between the force and the displacement are the three variables.
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what is the ability of a fluid to exert an upward force on an object
The ability of a fluid to exert an upward force on an object is called buoyancy or upthrust. The upward force is called buoyant force.
What is buoyancy?The buoyancy as explained above is caused by the pressure exerted by the fluid in which the object is immersed. That pressure force is called an upthrust force or buoyant force.
According to Archimedes principle, the buoyant force is the upward force exerted by a fluid on an object placed in them. The magnitude of the buoyant force is equal to the weight of a fluid displaced by an object.
Due to the buoyant force, a body immersed wholly of partly in a fluid will to lose its weight. In other words, it appears to be lighter. This phenomenon makes it possible for fish, swimmers, ships, icebergs, and hot air balloons to stay afloat.
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What is the name for the spontaneous process of transport or dispersing of molecules until there is a uniform concentration of molecules throughout a solution?.
The process by which molecules spontaneously move through a solution or disperse until they are evenly distributed throughout is known as diffusion.
Diffusion is the movement of molecules (either solution- or gas-borne particles) from a region of high concentration to a region of lower concentration, or down a gradient in concentration. Diffusion over the cell surface membrane allows some chemicals to enter and exit cells.
The term "facilitated diffusion" refers to a type of passive transport. It happens when chemicals like glucose or amino acids shift from a state of high concentration to a state of low concentration with the help of carrier proteins or membrane pores.
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What does the variable G in the gravitational force equation represent fg gm1m2 r 2?.
The gravitational or universal (G) constant, which relates force to mass and distance, is a symbol for this proportionality (G).
The gravitational constant, G, whose value depends on the units employed and is a universal constant, is multiplied by the product of the masses (m1 and m2) and divided by the square of the distance R to represent the attractive force in symbols: F = G(m1m2)/r^2.
Between two objects with masses m1 and m2, where f is the force. d is the separation between two objects, and G is the gravitational constant. The gravitational constant is G. m = the object's mass, M = the earth's mass, and r = the earth's radius.
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Analyze the formula FG = mg to explain how an object's weight can change even when its 'mass remains constant.
Weight is the gravitational attraction that an object experiences. The mass of an item remains constant, but its weight might vary based on the amount of gravity acts on it.
The mass of the item has a direct relationship with the gravitational force (FG) and may be determined by applying the formula FG=mg.
The weight, mass, and gravitational force that are applied to an object are represented in the formula FG=mg by the letters FG, m, and g. FG varies if gravity changes, even though the mass remains constant.
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A basic truth of inheritance that had been known well before darwin's time was that.
A basic truth of inheritance that had been known well before Darwin's time was that: Offspring frequently resemble their parents AND they inherit genes from their parents.
What is inheritance?Assets left to a person's heirs after their death are referred to as inheritance. Cash, investments like stocks or bonds, and other things like jewellery, cars, works of art, antiques, and real estate can all be included in an inheritance. Evolutionary transformation requires genetic inheritance. It explains how genes are transmitted down across generations. Therefore, it may initially appear odd that life history research rarely takes into account genetic inheritance. The most widespread types of inheritance include autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, multifactorial, and mitochondrial inheritance. Traits that are determined by the genes found on the autosomes are referred to as "autosomal."
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The complete question is as follows:
A basic truth of inheritance that had been known well before Darwin's time was that Select one:
a. Offspring inherit genes from their parents.
b. selective breeding improves domesticated plants and animals
c. Offspring frequently resemble their parents AND they inherit genes from their parents
d, Offspring frequently resemble their parents.
What factors does latency depend on?.
Latency has four primary causes: The main factor causing network slowness is data processing. In order to determine a data packet's precise destination at this time, the header must be studied.
Select the best route, and then add it to the relevant link's transmission queue. Unstructured data must be converted into machine-readable information through a process known as data processing. So acquiring, recording, organizing, storing, and adapting or modifying the data constitute the process of converting raw data into usable information. Latency has four primary causes: The main factor causing network slowness is data processing. All actions taken to convert useless data into information are categorized as data processing. Informational outputs include things like reports from analytics, visualizations, and well-organized data collections.
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The complete question is -
What factors does network latency depend on?.
Abullet of ma 0. 01kg i fired into andbag of ma 0. 49kg hanging from atree. The and bag,with the bullet embedded into it, wing at 10m/
A) the momentum after the colliion
B )the momentum before the colliion
C) the velocity of the bullet
The answer is the momentum after the colliion
m1v1i + m2v2i = m1∗v1f + m2*v2f
What is meant by colliion ?
A collision in physics is any situation in which two or more bodies quickly exert forces on one another. Despite the fact that the most common usage of the word "collision" refers to situations in which two or more objects clash violently, the scientific usage of the word makes no such assumptions.A collision is considered inelastic if most or all of the total kinetic energy is lost; this results in the objects colliding head-on and coming to a complete stop.This is by design; in the event of a collision, the car's structure will instead absorb the energy of the impact, protecting both the occupants and any onlookers.p = m∗v(mathematical definition of momentum)
p1i + p2i = p1f + p2f
(mathematical formula for conservation of momentum)→
m1v1i + m2v2i = m1 ∗ v1f + m2*v2f
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How do you find velocity at time t 0?.
When an object doesn't move over time, its velocity is zero. When there is no displacement of the item, the velocity of the object is 0. Between two different time intervals, the object's position is unchanged.
By dividing the entire distance traveled by the time it took the object to go a certain distance, you may calculate the object's initial velocity. V, d, and t are the three variables that make up the equation V = d/t.
Angular acceleration at time zero is -10 rad/s2, and the angular velocity is 27.5 rad/s. How many complete rotations does the disc make before coming to a stop. The circular path is always parallel to the linear velocity. The tangential speed determines magnitude.
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Correct Question:
How do you find velocity at time t=0?.
Samples g and h were selected from the same population of quantitative data and the mean of each sample was determined. The mean of sample g is equal to the mean of the population.
The mean of the sample is point estimator of mean of the population from which samples are drawn randomly.
Correct option: II and III is correct choice.
What is the relationship between population mean and sample mean?Samples G and H are selected from the same population of quantitative data. Mean of G is equal to the mean of the population. We cannot work on population in most of the cases thus we draw samples and work on sample to predict the properties of population. Sample mean is point estimator of population mean, and is used to predict the population mean.
Since both G and H are samples drawn from same population, thus, they both are point estimators of the population mean. It is not necessary that both G and H must be same. They can be same and cannot be same.
Thus, Option: II and III is correct choice
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The complete question is as follows:
Samples G and H were selected from the same population of quantitative data and the mean of each sample was determined. The mean of sample G is equal to the mean of the population. Which of the following statements must be true?
I. The mean of sample H must also be equal to the population mean.
II. The mean of sample G, TG, is a point estimator for the mean of the population.
III. The mean of sample H, my, is a point estimator for the mean of the population.
A. I only
B. II only
С. III only
D. I and II
E. II and III
Uppoe a rocket-propelled motorcycle i fired from ret horizontally acro a canyon 1. 00km wide. What minimum contant acceleration in the x-direction mut be provided by the engine o the cycle croe afely if the oppoite ide i 0. 750 km lower than the tarting point?
To safely cross a canyon 1.00 km wide with a starting point 0.750 km lower than the opposite side, the minimum constant acceleration in the x-direction that must be provided by the engine of the motorcycle is 9.8 m/s² (approximately the acceleration due to gravity).
Rocket Motorcycle Canyon CrossingThe motorcycle must have a minimum constant acceleration in the x-direction of 9.8 m/s² in order to safely cross the canyon. This acceleration is necessary to counteract the force of gravity and ensure that the motorcycle and rider can clear the distance of the canyon and land on the opposite side at a point that is 0.750 km higher than the starting point. The motorcycle is assumed to be fired horizontally from the starting point, and the rider must be able to maintain balance throughout the crossing.
To safely cross a canyon 1.00 km wide with a starting point 0.750 km lower than the opposite side, the minimum constant acceleration in the x-direction that must be provided by the engine of the motorcycle is 9.8 m/s² (approximately the acceleration due to gravity). This is assuming that the motorcycle is fired horizontally from the starting point and that the rider is able to maintain balance throughout the crossing.
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Kepler was the first astronomer to look at the planet’s orbital __________. He discovered that these had a/an _________ shape.
------------------------------------------------------------------------------------------------
The heliocentric model is actually just a model for ___________, not our entire universe.
Kepler was the first astronomer to look at the planet’s orbital paths. He discovered that these had a/an elliptical shape.
The heliocentric model is actually just a model for the solar system, not our entire universe.
How much work is done when a 100 lb rock is lifted to a height of 3 ft?
the effort done is 300 joules when a 100 lb rock is raised to a height of 3 ft, according to the work done calculation.
How much work has been done?
It should be converted to energy in order to move an object. Energy can be transferred by the use of force. Work done refers to the amount of energy used by a force to move an object.
What exactly is a physics "work done"?
When an object is moved over a distance by an external force, at least a portion of that force must be applied in the direction of the displacement. This is known as work in physics.
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How do you solve gravitational equations?.
Gravitational equation can be solved by knowing the values of universal gravitational constant, masses of both the object, and the distance between them.
According to Newton's law of gravitation, every object in the universe attracts every other object with a force called gravitational force. Gravitation equation defines the gravitational force exerted by two objects on each other. If they are kept apart at some distance.
F = GMm/R²
Where F is the gravitational force between the object, G is the universal gravitational constant, M & m are masses of both the object and R is the distance between the objects. Gravitational force is a vector quantity.
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What is the formula and unit of work done?.
Answer:
Work Done = Force x Displacement
Explanation:
The formula for work done is defined as the product of the magnitude of the force applied on an object and the displacement of the object in the direction of the force. Mathematically, this is expressed as:Work Done = Force x DisplacementThe unit of work done is the joule (J). This is derived from the SI unit for force (Newton, N) and the SI unit for displacement (meters, m). The joule is defined as the amount of energy transferred or converted when a force of one newton moves an object one meter in the direction of the applied force.Work is a measure of energy being transferred or converted from one form to another. This transfer of energy is accomplished by applying a force onto an object over a distance. Work done is measured in joules, which is the amount of energy transferred or converted in the process. It is important to note that for work to be done, the force must be applied in the direction of the displacement. For example, if you push a box across the floor, the force you apply is in the direction of the displacement. This means that work is being done on the box. However, if you push the box up against a wall, the force you apply is perpendicular to the displacement. In this case, work is not done on the box because the force is not applied in the direction of the displacement.In addition, it is important to remember that work done is equal to the product of the force applied and the displacement of the object in the direction of the force. This means that if the force applied is doubled, the work done will also be doubled. Similarly, if the displacement of the object is doubled, the work done will be doubleIn conclusion, the formula for work done is Force x Displacement, and the unit of work done is the joule. Work is a measure of energy being transferred or converted from one form to another, and is equal to the product of the magnitude of the force applied and the displacement of the object in the direction of the force. In order for work to be done, the force must be applied in the direction of the displacement.What is momentum and write its formula?.
Momentum is a moving body's quantity of motion, measured as the product of its mass and velocity. It is calculated as mass *velocity.
What is momentum?Momentum is defined as the quantity of motion of a body. It is measured by "mass velocity," since momentum is affected by velocity and the direction of the body's motion. Because velocity is a vector and mass is a scalar variable, momentum is a vector quantity. Momentum is defined as mass multiplied by velocity. The definition of momentum is "mass moving." Because all objects have mass, when they move, they have momentum - their mass is in motion. Momentum is a moving body's quantity of motion, measured as the product of its mass and velocity.
Here,
Momentum is a moving body's amount of motion, calculated as the product of its mass and velocity. It is calculated as mass *velocity.
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If a shopping cart is traveling at 7 m/s at time, t=1s, and then the same shopping cart is traveling
at 28 m/s at time, t=4s, what is the cart's acceleration?
Acceleration is the rate of change of velocity over time. To calculate the acceleration of the shopping cart, you would need to use the formula:
a = (v2 - v1) / (t2 - t1)
where a is the acceleration, v1 is the initial velocity, v2 is the final velocity, t1 is the initial time, and t2 is the final time.
In this case, the initial velocity is 7 m/s at time t = 1s and the final velocity is 28 m/s at time t = 4s. So,
a = (28 m/s - 7 m/s) / (4s - 1s) = 21 m/s^2
So the cart's acceleration is 21m/s^2
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