What will happen to 4G phones when 5G comes?.

Momentum is defined as the product of mass and velocity units. We can use the simple formula P=mv to calculate momentum, where P is the momentum.

It is measured by "mass velocity," because momentum depends on velocity, and it also depends on the direction of the body's motion. Momentum is a vector quantity because velocity is a vector and mass is a scalar quantity. Momentum equals mass multiplied by velocity. Momentum is defined as "mass moving." Because all objects have mass, if an object moves, it has momentum - its mass is in motion. Momentum is the amount of motion of a moving body, calculated as the product of its mass and velocity. Its formula is mass velocity.

Here,

The product of mass and velocity units is defined as momentum. To calculate momentum, we can use the simple formula P=mv, where P is the momentum.

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88 kilometers northeast of Portland, amid the Cascade Mountains, is the stratovolcano Mount St. Helens. Since the volcano only developed about 40,000 years ago, it is a rather recent formation. It is the Cascade Range's most active, though.

The Cascade Mountain Range is a part of the Pacific Ocean's massive Ring of Fire, which frequently experiences powerful earthquakes and volcanic eruptions.

Through the state of Washington, the mountain range runs from British Columbia (Canada) to California.

The name of the summit was given by George Vancouver, a British navigator for the Royal Navy who discovered North America's Pacific Coast, according to the United States Geology Survey (USGS), in honor of Alleyne FitzHerbert, a British diplomat and a friend of his.

Therefore, 88 kilometers northeast of Portland, amid the Cascade Mountains, is the stratovolcano Mount St. Helens. Since the volcano only developed about 40,000 years ago, it is a rather recent formation. It is the Cascade Range's most active, though.

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The torque multiplication ratio of a basic torque converter would be around 2.5:1. The most important thing to keep in mind is that all torque converters which are in proper working order increase torque while initiating initial acceleration.

The moment the vehicle first begins to move, the torque multiplier reaches its maximum. The torque multiplication falls off as speed rises. Torque multiplication virtually disappears as the impeller as well as turbine speeds become close to one another.

Force times distance, or T2L2M, would be the dimension of torque. The official SI literature advises using the unit newton-meter (Nm) as well as don't ever the joule, despite the fact that these fundamental dimensions were identical to those used for energy and work. The appropriate abbreviation for the newton meter is Nm.

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The father of physics in Pakistan is Professor Dr. Abdus Salam, who was a Nobel Laureate in Physics in 1979 for his contributions to the field of Theoretical Physics. He was also the first Pakistani to receive a Nobel Prize in any field.  

Born in 1926 in Jhang, Punjab, Pakistan, Dr. Salam earned his B.Sc. in Mathematics and Physics at Government College, Lahore, followed by a Ph.D. in Mathematics at Cambridge University in 1951. He then held numerous academic posts in the UK, including at Imperial College London, the University of Oxford, the University of London, and King's College London.  In 1957, Dr. Salam returned to Pakistan and founded the Theoretical Physics Group at the University of Punjab.

In addition to his academic career, Dr. Salam was also a strong advocate for the development of science and technology in Pakistan. He was instrumental in establishing the Pakistani Academy of Science, the National Centre for Physics, and the International Centre for Theoretical Physics in Trieste, Italy.

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The 50 kg mass on 4 m2  on will exert more pressure.

Pressure is described as the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Mathematically pressure = force / area

From Newton's second law

force = mass x acceleration where Acceleration due to gravity = 9.8m/s²

Comparing both pressures where

P1 = 100x 9.8 / 10

p1 = 100 pa

p2 = 50 x  9.8/ 4

p2 = 125 pa

Therefore The 50 kg mass on 4 m2  on will exert more pressure since it exerts more pressure.

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The law of inertia is about the tendency of any object to remains in state of motion until and unless an external force is applied to it.

The law of inertia states that any object remains in its state of motion, (either in rest or in motion)  until and unless an external unbalanced force is applied to it. For example if a car is travelling at a constant speed then it will continue to remain in this state for ever. But practically it comes to at rest state after covering some distance. This is due to the opposite force of friction working between the tires of the car and the road surface.

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The Tenth Amendment to the Constitution states that "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states or to the people." This amendment is a source of law that limits the powers of the federal government and reserves certain powers to the states or the people. It is a principle of federalism, which divides the power between the federal government and the state governments. The powers that are not delegated to the federal government are left to the states or the people to decide.

The full-load current of a 25-horsepower, 480-volt, 3-phase, squirrel-cage induction motor is 12.7 A.

To calculate the full-load current of a 25 horsepower, 480-volt, 3-phase, squirrel-cage induction motor, you can use the formula:

Full-load current (I) = (Horsepower * 746) / (Voltage * 1.73 * Power factor)

where 1.73 is the square root of 3, which accounts for the 3-phase power and Power Factor is assumed to be 0.8

Plugging in the given values, we get:

I = (25 * 746) / (480 * 1.73 * 0.8)

I = 25746/(4801.73*0.8)

I = 25746/(4803.07)

I = 25*746/1478.4

I = 25*0.508

I = 12.7 A

Therefore, the full-load current of a 25-horsepower, 480-volt, 3-phase, squirrel-cage induction motor is 12.7 A.

It's worth noting that this is just an approximation and the current can vary depending on the motor design, the load and the power factor.

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A automobile with a mass of 1000 kg and a speed of 30 m/s has kinetic energy equal 450,000 J.

If an object's mass increases, so will its kinetic energy. The object's speed is given by v. The aforementioned connection demonstrates that an object's kinetic energy is directly proportional to the sum of its mass and velocity.

Possible explanation: Because kinetic energy and speed are closely correlated, an object's kinetic energy increases as its speed increases. The nonlinear (square) proportional relationship (KE v2) between kinetic energy and speed 1. As an object's speed doubles, its kinetic energy grows four times. 2. As the object's speed is halved, the kinetic energy falls by a factor of four.

K.E: 1/2 *m * v^2

K.E= 1/2* 1000* 30^2

K.E = 450,000 J

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Every object falling freely accelerates at roughly the same rate near the surface of the earth. A g signifies this acceleration. The earth's center is where it is headed downward.

Constant g = 9.8 m/s^2 downward acceleration is experienced by objects in free fall. Newton's second law of motion, Force = Mass * Acceleration, can be used to describe the motion of an object falling (a).

We can use a little mathematics to find the object's acceleration as a function of the object's mass and the net external force (a = F / m). What is meant by acceleration: a measure of how quickly a speed changes over time. Because it has both a magnitude and a direction, acceleration is a vector quantity.

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change in momentum during this time is 2166.71 kg m/s.

To find the change in momentum during this time, we can use the equation for momentum, which is:

momentum = mass x velocity

We can also use the equation for acceleration:

       a = (vf - vi) / t

Where "a" is acceleration, "vf" is final velocity, "vi" is initial velocity and "t" is time.

We are given that the car's initial velocity is 18 m/s east, the acceleration is 1 m/s2, and the time is 1.57 s. We can use these values to find the car's final velocity:

vf = vi + (a x t)

vf = 18 + (1 x 1.57)

vf = 19.57 m/s east

Now that we know the final velocity of the car, we can use the equation for momentum to find the change in momentum:

change in momentum = mass x (vf - vi).

change in momentum = 1383 x (19.57 - 18).

change in momentum = 1383 x 1.57.

change in momentum = 2166.71 kg m/s.

So, during this 1.57s of time, the car's momentum changes from 18m/s to 19.57m/s east and total change in momentum is 2166.71 kg m/s.

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The number of rubber bands that will cause an object with half the mass to accelerate six times as quickly is 6.

Newton's second law of motion is a quantitative depiction of the progressions that a power can create on the movement of a body. It expresses that the time pace of progress of the energy of a body is equivalent in both greatness and bearing to the power forced on it. The force of a body is equivalent to the result of its mass and its speed.

So,we have given some of parameters like,

The force applied to the object by the two rubber bands, according to newton second law of motion is

F = ma

2 = ma--------(eq1)

When the mass of the object is halved, the number of rubber bands required is calculated as;

2/ma=n/(m/2)×6a

=>2/ma=2n/6ma

=>n=(2/ma)×(6ma/2)

=>n=6

Hence,6 rubber bands will be needed.

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(Complete question) is:

Two rubber bands cause an object to accelerate with acceleration a. How many rubber bands are needed to cause an object with half the mass to accelerate six times as quickly?

a) To find the speed of the signal in water, we can use the equation:

Speed = Wavelength x Frequency

Where Wavelength is given as 1.5 mm and Frequency is given as 1 x 10^6 Hz.

Speed = 1.5 x 10^-3 m x 10^6 Hz = 1.5 x 10^3 m/s

So the speed of the signal in water is 1.5 x 10^3 m/s

b) To find the period in water, we can use the equation:

Period = 1 / Frequency

Where Frequency is given as 1 x 10^6 Hz

Period = 1 / (1 x 10^6) s = 1 x 10^-6 s = 1 microsecond

So the period of the signal in water is 1 microsecond

c) The speed of sound in air is approximately 343 m/s. Since the frequency of the signal remains constant and the speed of sound in air is different than the speed of sound in water, the wavelength of the signal will also be different. However, since the period is inversely proportional to the frequency and is independent of the medium, the period of the signal in air will be the same as in water, which is 1 microsecond.

The information given on the X-axis of the graph attached is the years from 1920-2005 (option B).

A graph in mathematics or statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set.

A graph consists of two axes namely; X-axis and Y-axis. The x-axis on a graph is usually drawn left to right and usually shows the range of values of an independent variable.

On the other hand, the Y-axis is the axis on a graph that is usually drawn from bottom to top and usually shows the range of values of variable dependent on one other variable.

Therefore, according to the graph illustrated above, the x-axis shows the years from 1920-2005.

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Answer:

When you kick a football and it moves from one place to another

Explanation:

This means that the unbalanced force troops are acting upon it. The ball moves from one place to another after it's kicked. This is an example of an unbalanced force

It is the property of a rotating body determined by the product of the rotating object's moment of inertia and angular velocity. It is a vector quantity, which means that the direction is taken into account in addition to the magnitude. It is expressed in SI base units: Kg.m2.s-1

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. An object's angular momentum is the product of its rotational inertia and angular velocity. The angular velocity of an object is the rate at which it turns.

Here,

It is a rotating body property that is determined by the product of the rotating object's moment of inertia and angular velocity. It is a vector quantity, which means that the direction, in addition to the magnitude, is considered. It is written in SI base units: Kg.m2.s-1

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The two factors upon which torque depends are the magnitude of force and the perpendicular distance from the point to the line of action of force.

It is also called as moment of force. The standard units of torque are N.m.

Mathematically, torque is written as, τ = r × F.

where, τ is torque, r is perpendicular distance, F is force.

Three factors affect how much torque a rigid body produces. the applied force, the vector of the lever arm that connects the torque measurement point to the application point of the force, and the angle formed by these vectors. τ = r F sinθ  

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The light source and aperture are most important in determining the resolution of the microscope, as the resolution of the microscope is determined by the cone of light entering the lens, the refractive index, and the wavelength of the light.

The most important factor in determining the resolution of a microscope is the numerical aperture (NA) of the objective lens. The higher the NA, the higher the resolution. However, other factors also play a role. The numerical aperture of the condenser that forms the beam of light that illuminates the object on the slide should match the numerical aperture of the objective lens (or at least not be much smaller). Another factor is the refractive index of the medium between the objective lens and the slide. For low magnification lenses (low NA) this medium is usually air. Air has a refractive index of 1.0 (for the wavelengths of light used in microscopy).

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The distance the springs need to bring the car to a stop can be calculated using the equation for the potential energy of an object at a height, which is:

PE = mgh

where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s^2), and h is the height.

In this case, the car has a mass of 1,836 kg and is at a height of 88.6 meters. So the potential energy of the car at the top of the roller coaster is:

PE = 1,836 kg * 9.8 m/s^2 * 88.6 m = 1.5*10^5 J

Next, we need to find the work done by the spring. Work can be calculated using the equation

W = 1/2 * kx^2

where k is the spring constant (100,000 N/m) and x is the compression distance of the spring.

Since the work done by the spring is equal to the potential energy of the car, we can set the two equations equal to each other and solve for x (the compression distance of the spring):

1/2 * kx^2 = 1.510^5 J

x = sqrt(2 * 1.510^5 J / 100,000 N/m)

x = sqrt(30000/100000)

x = 0.173 m

Therefore, the spring needs a distance of 0.173 m to bring the car to a stop.

The kinetic energy for an 10 kg object at a 5 m/s speed is 125.

Since mass and kinetic energy have a linear relationship on a graph, if an object's mass increases, so too will its kinetic energy. The object's speed is v. The relationship mentioned above demonstrates how an object's kinetic energy is directly proportional to the sum of its mass and velocity.

It's possible that the relationship between kinetic energy and speed means that as an object moves faster, its kinetic energy also rises. Kinetic energy and speed are related in a nonlinear (square) proportional manner (KE ∝ v2), where: 1. As an object's speed doubles, its kinetic energy grows fourfold. 2. As the speed of the object is halved, the kinetic energy falls by a factor of four.

K.E = 1/2 *m *v^2

K.E = 0.5*(10)*(5^2)

K.E= 125

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Relative Centrifugal Force or g force is calculate with the formula-

g force (RCF)= (RPM)² x 1.118 x 10⁻⁵ x r where, r is the radius .

The relative centrifugal force, or g force, is the radial force generated by the spinning rotor in relation to the gravitational force of the Earth. The g force acting on particles is proportional to the rotational speed measured in revolutions per minute (RPM).

Increasing the rotational speed by a factor of four increases the centrifugal force. The centrifugal force increases with distance from the axis of rotation. When choosing the right centrifuge, these two parameters are crucial.

The RCF or g force is proportional to the rotational speed in RPM and the particle distance from the centre of rotation. When the rotational speed is given in RPM and the distance (r) is given in centimetres.

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She puts her skis in with less pressure because her skis have a larger surface area than her shoes do. Thus, Ingrid doesn't need to ski to travel across the snow.

The pressure on the snow is reduced by the size of the skis. The pressure on the snow is lessened by the larger surface area of skis. This prevents the skis from burying themselves too deeply in the snow.

Pressure is defined as the force perpendicularly applied to an object's surface divided by the area across which it is distributed. Gauge pressure is the pressure in relation to the air pressure outside. To express pressure, various units are employed.

Ingrid can move over the snow without skiing because there is less pressure when she puts her skis on compared to her shoes.

The question is incomplete. The complete question is 'Ingrid lives in a cold country that sometimes gets lots of snow. When that happens , people can enjoy the sport of skiing. Ingrid goes outside to see if the snow is fit for skiing. She sinks into the snow , but when she puts her skis in, she can move over the snow without skiing. Why?'

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Torque is calculated using the formula, τ = r × F, where, r is the perpendicular distance, F is the force.

It is also described as the cross product of distance vector and force vector. Mathematically, τ = r × F = r F sinθ, where, θ is the angle between r and F.

For example, a force is applied to a particle free to rotate about a fixed axis. Force is shown divided into perpendicular and parallel components. Torque is pointed outward from the page and has the magnitude

τ = r F sinθ

Newton-meters, sometimes known as N.m, are the SI units for torque. Although these units are the same as joules, torque isn't considered to be work or energy, therefore N.m should be used instead.

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A collision that is fully elastic is one where there is no kinetic energy lost during the contact. In an inelastic collision, a proportion of the energy is converted into another kind of energy during the contact.

In elastic collisions, kinetic energy and momentum are both conserved. Consider two similar trolleys that are moving in the same direction at the same pace. With no loss of speed, they collide and bounce off one another. Since no power has been lost, this collision is fully elastic.

photo of A description of completely elastic collision

When a system's maximal quantity of kinetic energy is equal to zero, a relatively inelastic collision takes place.

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A collision that is fully elastic is one where there is no kinetic energy lost during the contact. In an inelastic collision, a proportion of the energy is converted into another kind of energy during the contact.

In elastic collisions, kinetic energy and momentum are both conserved. Consider two similar trolleys that are moving in the same direction at the same pace. With no loss of speed, they collide and bounce off one another. Since no power has been lost, this collision is fully elastic.

photo of A description of completely elastic collision

When a system's maximal quantity of kinetic energy is equal to zero, a relatively inelastic collision takes place.

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Newton's first law, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity unless acted upon by an external force.

In simple terms, it says that an object will remain in its current state of motion unless acted upon by a net force.

This means that if an object is moving in a straight line at a constant speed, it will continue to move in that way unless something changes its motion.

Similarly, if an object is at rest, it will stay at rest unless something applies a force to it. This law is fundamental in understanding the principles of motion and forms the basis for many other laws of physics.

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Answer: 2 J

Explanation: Work is defined as the energy exerted by an object when a force acts on it. The formula to find the work is

W = F .d

where, F = force applied

d = displacement

In the given question,

F = 20 N

d = 0.1 m

Hence, Work done, W = F.d

= 20 x 0.1

= 2 Nm

= 2 J

The energy of the ball is transformed into heat during the contact. As there is no more energy imparted to the ball, it returns with less kinetic energy and is unable to rise as high.

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About 2,900 kilometers (1,802 miles) beneath the surface of the Earth, the core can be located.

Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.

Furthermore, it is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

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The force applied by the breaks on the bus traveling at 26.6m/s will be 34,546 Newtons.

First we have to calculate the negative acceleration applied by the breaks. We know that [tex]v^{2} - u=2as^{2}[/tex], where V is the final velocity, u is initial velocity, s is the displacement and a is the acceleration Therefore, by putting the given values, we get :

⇒(0 x 0)- (26.6 x 26.6)=2 x 47 x a

⇒-[tex]\frac{706.56}{2*47}[/tex]

⇒-7.51

∴ Acceleration applied by the breaks is -7.51 [tex]ms^{2}[/tex]

Now, by F=ma, we can calculate force as we already know the mass of the bus. Therefore,

⇒m x a

⇒4600kg x (-7.51)ms-2

⇒34,546 Newtons will be the answer.

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