What is Newton's 2nd law of motion apply it in an example?.

The potential energy of the object is 980 Joule. The result is obtained by using the formula for potential energy.

Potential energy is the energy of an object due to its position.

The energy of an object in a gravitational field is called gravitational potential energy. It can be expressed as

U = mgh

Where

An object has

Find the potential energy!

The Earth's gravitational field is g = 9.8 m/s².

Using the formula above, we get

U = mgh

U = 10 × 9.8 × 10

U = 980 Joule

Hence, the object has the potential energy of 980 Joule.

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An item can move, or can accelerate, slow down (decelerate), stop, or change direction as a result of the action of a force. It is possible to say that a force acting on an item causes that object to accelerate because any change in velocity is regarded as acceleration.

What knowledge is required for a pupil to distinguish between a moving object's speed and velocity?

Speed is the rate at which motion changes, or the distance that an item moves in a given amount of time, regardless of direction. Speed with regard to direction is defined as velocity. Velocity is a vector, whereas speed is a scalar.

In contrast to speed, which of the following best represents a velocity?

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.

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The effective weight of the  ice skater is 497.75 N.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

The effective weight of the  ice skater = mass × net acceleration

= 55 kg × (9.8 m/s² - 0.75 m/s²)

= 497.75 N.

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Yes, mass does change with gravity. The mass of an object is affected by the gravitational pull of the environment around it. The greater the gravitational pull, the higher the mass of the object.

This is because the object is being pulled closer to the source of gravity and thus its inertia increases, resulting in an increased mass. For example, if we were to compare two objects, one on the Earth’s surface and one on the Moon, the object on the Earth’s surface would be heavier due to the greater gravitational pull of the Earth. This is because the gravitational pull is stronger on the Earth than on the Moon, and thus the object on the Earth is being pulled closer to the source of gravity.

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Answer:

the correct answer is b 8/3

Answer:

Explanation:

ME = GPE + KE

At the top of building all the mechanical energy is GPE because the ball isn't moving yet.  Just before it hits the ground, all the mechanical energy is KE because the GPE has decreased to 0 (h = 0 at ground level).

a.  Total E (top of bldg.) = mgh = (5 kg)(9.8 m/s²)(22 m) = 1078 J

b.  Total E (at ground) = 1/2mv² = 1/2(5 kg)(18 m/s)² = 810 m/s

c.  The energies are not the same because some of the energy is converted to thermal energy as they ball falls due to friction.

Answer:100

Explanation:100 times is 100

The force acted on the golf ball is 2,700N.

Momentum in physics is the tendency of a body to maintain its inertial motion i.e. the product of its mass and velocity, or the vector sum of the products of its masses and velocities.

According to this question, a golf ball increases its momentum by 6.75 kgm/s. The impact between the ball and club lasted for 0.0025s.

Force is the rate at which momentum changes with respect to time i.e. (F = dp/dt).

Force = 6.75kgm/s ÷ 0.0025s

Force = 2,700N

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First velocity of the car with one washer attached to a pulley is v1 = 0.25 m / t1, where t1 the average times the car took to reach the 0.25 m mark.

The velocity at time interval t = 0 is represented by the symbol u. It is the speed which shows that the motion has begun. There are four different initial velocity formulas: (1) If time, acceleration, and final velocity are given, the initial velocity is expressed as u = v - at.

The final velocity, on the other hand, is a vector quantity that determines the speed and direction of a body in motion after it has reached maximum acceleration.

The velocity of a body at any given time is known as instantaneous velocity. Average velocity is defined as total displacement divided by total time and can be calculated as v = x/t, where x is the total displacement of the body and t is the time. Because displacement can never be greater than the distance travelled, average velocity is always less than or equal to average speed.

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The statement is untrue since a vector is not a unit vector if all of its components are equal to 1.

Do all the elements of a unit vector have the value 1?

A unit vector is one with a magnitude of 1. It also goes by the name Direction Vector. Learn more about vectors here. Vector v = (1,3), for instance, is not a unit vector.

What is the unit vector's truth?

Since the denominator and numerator both have the same value, the unit vector has a magnitude of 1. Only direction exists in the unit vector. We are aware that a vector must have both magnitude and direction.

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The rate of change (ROC) describes how rapidly something changes over time. It is hence the pace of change (rather than the amount of individual changes) that is important.

Continuous data is data that can have any value. Continuous data include height, weight, temperature, and length. Some continuous data will fluctuate over time, such as a baby's weight in its first year or the temperature in a room during the day.

A continuous variable is one that may take an uncountable or endless set of values.

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The mass of the boat is 124.2 kg.

The mass of the boat is calculated by applying the principle of conservation of linear momentum as follows;

momentum of the man = momentum of the boat

m₁v₁ = m₂v₂

where;

Since speed is directly proportional to distance, our new equation becomes;

m₁d₁ = m₂d₂

m₂ = ( m₁d₁ ) / ( d₂ )

m₂ = ( 89.3 x 5.8 ) / ( 4.17 )

m₂ = 124.2 kg

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Three formulas of newton's law of motion are:- a) v = u + at, b) S = ut +0.5at² c) v² = u² + 2as

Newton's first law of motion defines the relation between final velocity(v) of an object after some time(t), if the initial velocity of the object is u and acceleration is a.

v = u + at

Newton's second law of motion is used to determine the distance(S) travelled by an object in accelerated motion for time(t), having an initial velocity u.

S = ut +0.5at²

Newton's third law gives the relationship between, final, initial velocities, acceleration(a), and the distance(s) travelled by the object.

v² = u² + 2as

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The dot product of the force and the displacement of the force point is used to calculate the amount of work done by force. In the case of angular motion, torque takes the place of force and angular displacement of linear displacement.

Typically, the product of r and F is used to represent torque.  τ = r × F = r F sinθ

The torque's work is equivalent to the body's change in rotational kinetic energy.

As you apply a force somewhere and move a distance, there is a connection between torque and work. Torque, however, is merely a proximate indicator of force.

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Examples of substances that can move into or out of the cell by diffusion are water, carbon dioxide, oxygen etc.

A substance tends to move from a high concentration area to a low concentration area during the diffusion process until its concentration is equal throughout a space.

Passive transport involves a substance diffusing down a concentration gradient across a membrane without the cell expending any energy. A concentration gradient is simply a region of space where the concentration of a substance changes, and substances will naturally move down gradients, from higher concentration to lower concentration.

Some molecules in cells can move down concentration gradients by directly crossing the lipid portion of the membrane, while others must pass through membrane proteins in a process known as facilitated diffusion.

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Because the light beam chooses the shortest path to its destination, the angle of incidence equals the angle of reflection. Fermat's principle refers to this behaviour of light. When a light beam is reflected off a planar surface, it exhibits the same behaviour.

According to Fermat's theory of light behaviour, a light beam always chooses the shortest path to its target. At the point of reflection, the same behaviour is observed. The angle of incidence equals the angle of reflection when a ray is reflected from a plane.

Angle of incidence equals angle of reflection at a small surface area.

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Through photosynthesis process introduced oxygen into the atmosphere.

Jan Ingenhousz was a Dutch-born British physician and scientist who was most famous for discovering photosynthesis, the process by which green plants in sunlight absorb carbon dioxide and release oxygen. He was born on December 8, 1730, in Breda, the Netherlands, and died on September 7, 1799, in Bowood, Wiltshire, England. The process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The vast majority of life on Earth depends on photosynthesis to survive. It is how almost all of the biosphere's energy is made accessible to living beings.

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The speed of the ball thrown that traveled 60 feet in 0.4 seconds is 150ft/s.

Speed is the rate of motion or action, specifically the magnitude of the velocity i.e. the rate distance is traversed in a given time.

Speed = distance moved (m) ÷ time taken (s)

According to this question, the fastest baseball pitch ever recorded was by Aroldis Chapman who threw a ball that traveled 60 feet in 0.4 seconds. The speed of the ball can be calculated thus;

Speed = 60feet ÷ 0.4s

Speed = 150ft/s

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Radius is considered as r in this formula. The gravitational force which try pulls two objects with masses m1 and m2 apart over a certain distance is represented by the equation F = G*m1*m2/r^2. G, which represents the universal gravitational constant.

The product of each object's individual mass determines the gravitational force between them. The square of one object's mass determines how much gravity will pull on the other. If their mass is raised by a factor of two, the gravitational force between the two objects is quadrupled.

The formula F = GMm /r^2 describes the dimensions of G as the gravitational force that pulls two objects with point masses of m1 and m2 toward one another, and r represents the distance between them.

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Answer:

The correct answer is C. Low melting point, tendency to share electrons, nonelectrolyte. Covalent compounds are formed by the sharing of electrons between two atoms and they have a low melting point and are non-electrolytes.

The magnitude for A =- 2i +2j+2k is 2[tex]\sqrt{3}[/tex].

The definition of magnitude in physics is "distance or quantity," which is all there is to it. It displays the motion of an object in motion, including any absolute, relative, or specific sized movements. It can be used to define the size or scope of anything. In physics, the general term "magnitude" is used to describe size or distance.

A number called the magnitude of a force serves as a measure of its strength. Let's say there is a 10 N force coming from the east. "towards east" designates a direction, while "10" denotes the strength of the force. The "value" or "amount" of any physical quantity can be thought of as the magnitude, in other words.

= [tex]\sqrt{a^{2}+b^{2}+c^{2} }[/tex]

[tex]= \sqrt{2^{2}+2^{2} +2^{2} } \\= \sqrt{12} \\= 2\sqrt{3}[/tex]

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Correct Question:

What is the magnitude of A =- 2i +2j+2k?.

Mineralogically, barite is a sulfate, bornite is a sulfide, cuprite is an oxide, magnesite is a carbonate.

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Among the mineral groups, barite is a sulfide mineral, bornite is a sulfide mineral, cuprite is an oxide mineral, and magnesite is a carbonate mineral.

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The movement of a projectile through a resisting medium, like as air, is referred to as a ballistic issue. The projectile's launch, flight, behaviour, and effects are all studied by the mechanics subfield known as ballistics.

The science or art of creating and speeding projectiles to create a desired performance, particularly projectiles like bullets, unguided bombs, rockets, or the like. A weapons engineer or armorer—often referred to as a "ballistician"—creates cartridges using the scientific principles of ballistics. The term "rocket" refers to any missile, spacecraft, aircraft, or other kind of vehicle that runs on rocket power. The name "ballistics" is derived from the Greek verb meaning "to throw." An object is a projectile if it is propelled into the air by the use of force.

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Answer:

Ultrasound monitoring of fetuses and mapping the seabed are similar in that they both use sonar technology to create images.

Explanation:

Ultrasound monitoring uses high-frequency sound waves to create images of the developing fetus inside the womb. The sound waves are sent out by a transducer and are reflected back to create an image of the fetus, similar to how sonar sends out sound waves and receives the echoes to create an image of the seabed.

Mapping the seabed uses sonar technology to create images of the seafloor. Sound waves are sent out by a transducer and are reflected back by the seafloor, creating an image of the seabed. The time it takes for the sound waves to return is used to determine the depth of the seafloor.

Both ultrasound monitoring and mapping the seabed use the principle of echolocation, which is the ability to locate objects by reflecting sound waves off them and measuring the time it takes for the echoes to return.

In summary, both ultrasound monitoring and mapping the seabed use sonar technology to create images by sending out sound waves and receiving echoes, which is the principle of echolocation.

Explanation:

both are actually using the principle of sonar basically involves sound waves ,bouncing doing waves and measuring effectively the echoes mm hmm for ultrasound well.

The magnitude of the new gravitational force is F' = 32 F when the masses are changed to 2m and 2m, and the distance is changed to 4r.

The universal Gravitational Force can be formulated by, F = G M₁ M₂ / d²

As per the data we know that,

M₁ = m

M₂ = m

d₁ = r

F₁ = F

M₂ = 2m

d = (r/4)

F₂ = ?

i) Original force

F₁ = G (m)(m) / r² = G m² / r² = F

ii) Modified force

F₂ = G (m)(2m) / (r/4)² = G 2m² / (r² / 16) = 32 [Gm² / r²] = 32 F

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Gravity operates as the action force, pulling the book toward the table, and the normal force of the table, acting as the reaction force, pushing the book higher.

A massive object's potential energy in relation to another massive object because of gravity is known as gravitational energy or gravitational potential energy. The energy that is released when the items fall toward one another is the potential energy associated with the gravitational field.

The potential energy associated with gravitational force is known as gravitational energy because it takes effort to lift items out of the gravitational pull of the Earth. Water in an elevated reservoir or kept behind a dam is evidence of gravitational potential energy, which is the potential energy resulting from elevated locations.

The book is being pulled toward the table by gravity, which acts as the action force, and is being pushed upward by the table's normal force, which acts as the reaction force.

When an object is present in a gravitational field, it has or can acquire gravitational potential energy, which is the energy that results from a change in position. Gravitational potential energy is an energy that is connected to gravitational force or gravity, to put it simply.

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The frequency of this wave is 15Hz. so, option (c) is correct. This indicates the size of the frequency is the turning fork vibrates 320 times every second.so, option (d) is correct.

What is frequency?

The number of waves that pass through a fixed location in a specific amount of time is known as frequency. As a result, if a wave travels for 1/2 second, the frequency is 2 per second.

What is wave?

A disturbance or variation that causes energy to gradually move from one point in a medium to another. It can be in the form of an elastic deformation or a change in pressure, electric or magnetic intensity, electric potential, or temperature.

Therefore, frequency of this wave is 15Hz. so, option (c) is correct. This indicates the size of the frequency is the turning fork vibrates 320 times every second.so, option (d) is correct.

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The water bath has a starting temperature of (18 0.5) °C and a finishing temperature of (40 0.3) °C, respectively.

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