The table shows the values Jane obtained when she measured the thickness of a steel pipe. The known thickness of the pipe is 1.32 centimeters. Which statement about her results is true?

The marble accelerates at a constant rate as it moves down the slope because of the constant gravitational force acting on it in a major portion and the rolling tangential force on the object is acting in the smaller form.

Rolling motion of any object occurs when the marble starts sliding in a different methods from the other objects such as when the objects starts to roll from the ramp or any other sloppy surface and it rolls down due to the gravitational force and with many other forces such as the rolling tangential force. many forces are acting on the object at the same moment and we are just seeing the gravitational force which is playing a major portion. Hence by this information we can consider that the ball accelerates at a constant rate as it moves down the slope because of the constant gravitational force acting on it in a major portion and the rolling tangential force on the marble is acting in the smaller form.

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Stretching that is passive, such as static stretching, is contrasted with active stretching, such as dynamic stretching. It entails motion, putting the muscles and joints through their full range of motion.

Active stretching – what is it? Active stretching is the process of relaxing and stretching opposing muscles without the use of external pressures, as opposed to dynamic stretching or ballistic stretching. Stretching that is active is not passive.

In general, an active stretch doesn't require the use of an external force. An illustration would be a side-leaning stretch with the arms overhead. It is not necessary to pull, push, hold, brace, or hold the stretch. Active stretching is a common practice in yoga, as you'll discover.

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Answer:

R*F

Explanation:

When we wear the backpack, the center of gravity will go to the back and up direction.

A location established in relation to an object or set of objects is the center of mass. It represents the system's average location as weighted by each component's mass. The center of gravity for straightforward stiff objects with homogeneous density is found at the centroid.

Because the center of mass of any body is situated where the majority of the body mass is concentrated, when we wear a backpack, the center of mass shifts toward the up and back.

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Answer: Natural selection, Genetic drift , Mutations and Gene flow

Explanation:  

Hormones are substances that communicate with your organs, skin, muscles, and other tissues through your blood to coordinate various bodily functions.

It serves as a sensory organ (touch, temperature detection), aids in temperature control, protects against mechanical, thermal, and physical injury as well as hazardous substances, prevents moisture loss, reduces the harmful effects of UV radiation, has an immune system that can detect diseases, etc.

The six primary functions of the skin are: protection, absorption, excretion, secretion, regulation, and sensation.

Our first line of defence against harmful chemicals, radiation, and poisons is our skin.

The outside world is kept at bay by a skin barrier. is the first line of defence against potentially harmful microbes.

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Answer:

I think it's b. False

Explanation:

The acceleration due to gravity at the surface of Neptune is calculated to be 10.08 m/s².

Here, we can apply the concept of Newton for the definition of the gravity of a planet, for which he defines that this is proportional to the product of the mass of the planet by the universal gravitational constant, and inversely proportional to the square of the radius of the planet. Mathematically this can be described as

g = GM/r²

where,

G is universal gravitational constant

M is the mass of the planet

r is the radius of the planet

Given that,

Mass of the planet M = 1.025 × 10²⁶ kg

Diameter of the planet = 49532 km = 49532 × 10³ m

Radius of the planet = 24766 × 10³ m

After putting the values into the equation above, we have,

g = GM/r² = (6× 10⁻¹¹) (1.025 × 10²⁶)/(24.7 × 10⁶)² = (6.15 × 10¹⁵)/(24.7 × 10⁶)² = 10.08 m/s²

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The gills of fish have a structure known as "countercurrent oxygen exchange" that increases the quantity of oxygen that can be taken up by the blood.

They accomplish this by increasing the amount of time that their blood is in contact with water that has more oxygen while the blood absorbs more oxygen.

The ability to extract a greater amount of the heating fluid's heat is one of the major benefits of counter-current flow. It is significant to notice that at the same terminal temperature, the LMTD value for counter-current flow is significantly higher than for concurrent flow. The streams enter the heat exchanger at the opposing ends in the countercurrent mode.

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Answer: B

Explanation:

Free fall -> constant acceleration of g = 9.81ms-1

Constant acceleration -> velocity increases at a constant rate (increases proportionally with time)

Math behind it:

* Velocity is the integration of acceleration, likewise acceleration is the differentiation of velocity. Integrating a constant value gives linearly increasing function in terms of x. (integrating with respect to x)

Hence, graph B shows the trend that velocity increases at a constant rate.

Graph A - Velocity decreases linearly

Graph C - Also decreases nonlinearly

Graph D - Not possible scenario. Velocity approaches infinity.

The total change in momentum of the mass is calculated to be 80.16 kg m/s.

Given that,

Force F = 10 N

Mass m = 6 kg

Time t = 8 sec

"Newton's second law states that F = m a."

Making 'a' as subject,

a = F/m = 10/6 = 1.67 m/s²

From the equations of motion, let us calculate velocity.

v = u + a t

v = 0 + 1.67 × 8 = 13.36 m/s

Δp = m(v - u) = 6 × ( 13.36 - 0) = 80.16 kg m/s

Thus, the change of momentum is 80.16 kg m/s.

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The amount of energy stored in a battery is measured in watt-hours (Wh), kilowatt-hours (kWh), or ampere-hours (Ah) (Ahr).

Potential energy is stored energy that is affected by the relative position of various components of a system. When a spring is squeezed or extended, its potential energy increases. A steel ball has higher potential energy when lifted above ground than when it falls to Earth.

Because every item moved from its resting posture has stored energy, it is referred to as potential energy because it has the ability to accomplish work when released.

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The velocity, time and acceleration motion of Mark Watney rocket as he moves from M₀ to M₄ is described as follows;

1) v₀ = initial velocity = u

v₄ = u + 260 m/s

2) Δv = u + 260 m/s - u = 260 m/s

3) Δt = 2 seconds

4) Mark's acceleration is 13·g

Acceleration is the rate of change of velocity. Motion under a constant acceleration is one in which the velocity of the object changes as time changes.

The scale of the graph is 5 units = 46 meters

The distance between M₀ and M₄ = 25.5 units

1 unit = 46/5 meters/unit

25.5 units = (46/5) m/unit × 25.5 units = 234.6 meters

The time between M₀ and M₄ = 0.5 s × 4 = 2 s

= 25.5 unit × 0.5 s/unit = 12.75 s

The speed at M₄, v₄ =

The location of M₀ = 0

The location of M₄ =

The values of the speeds are;

The distance be

1) The time at M₀, t₀ = 0

The time at t₄ = 2 s

The speed, v = u + a·t

Where;

u = The initial velocity of the rocket

a = The acceleration = 13·g = 13 × 10 m/s² = 130 m/s²

The speed at v₀ = u + 130 m/s² × 0 s = u

2) The variation of the speed between v₄ and v₀, Δv, is found as follows;

Δv = v₄ - v₀

Therefore;

3) The number of change in position from M₀ to M₄ is found as follows;

The number of 0.5 seconds between M₀ and M₄ = 4

The time difference between t₀ and t₄ is therefore;

4) The formula for the acceleration is; [tex]a = \dfrac{\Delta v}{\Delta t}[/tex]

Therefore, the acceleration between positions M₀ and M₄ is found as follows;

The speed at M₀ = u

Speed at M₄ = u + 260 m/s

t₄ - t₀ = 2 seconds

[tex]a = \dfrac{u+260 \, m/s - u}{2\, s} = 130\, m/s^2[/tex]

The value of the acceleration due to gravity, g ≈ 10 m/s²

Therefore, a = 13·g

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Deviance has an effect on social power. Then, Powerful people in society keep their power by defining the laws of deviant .

Based on the nature is divided into two kinds, namely negative behavior and positive behavior.

a. Positive deviant behavior

Positive behavior is deviant behavior that gives or has a positive impact on social life, because it has innovative elements and ideas that emerge are also creative, so as to enrich people's insights.

Positive behavior is also directed primarily at the values to be achieved together as well as social interests and is often considered as something ideal in society. Positive behavior will usually be accepted by society, because it is a form of development and adjustment to the times.

b. Negative deviant behavior

Negative behavior is the opposite of positive behavior.

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Answer:

a

Explanation:

The work required to raise a 25.0 kg object from the surface of the earth to a height of 3.33 m

Formula: F = 25.0, D = 3.33, and W =?

W = F x D

Putting values together equals 25.0 x 3.33 W = 83.25 j.

Work = force times distance, or W = Fd.

F = W/d for force

Distance: W/F = d

W = work, F = force, and D = distance.

The integral of such a force applied over a displacement distance is referred to as "work." When one engages in work, they are doing something that requires them to use their strength or force.

When energy is transferred to an item, it is considered to have undergone work in science.

The integral of such a force applied over a displacement distance is referred to as work. When one engages in work, they are doing something that requires them to use their strength or force.

When energy is transferred to an item, it is considered to have undergone work in science.

The physics formula for work

The physics equation or formula is:

W = Fd

Work (force times distance)

For force, F = W/d.

Distance: W/F = d

The scalar dot product of force and displacement also yields work.

FDCos = W

Work-related SI unit :

Joule is the SI unit of work (J). The work performed by a force of one newton operating over a distance of one meter is defined as one joule in this context. kgm2s-2 is the SI base unit of work.

Work can be defined as the quantity of energy that a force transfers. Calculate work Another name for physics is the joule calculator. Work is represented by the letter "W."

Work is defined as a motion that is caused by a resisting force and is quantified by the force's product into the motion component that is resolved in the force's direction. The size of it is ML2T-2.

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The magnitude  displacement vector's magnitude (or length), which is indicated by the arrow's length, measures the separation between the locations.

d = (((x2 - x1)2 + (scaling factor - y1)2)12 represents the displacement's magnitude. The displacement vector's size, or distance d, is its length. The guided line segment connecting P1 and P2 is the displacement vector's (d) direction. We refer to this straight line segment as a geometric or look of the scalar d.

When we talk about magnitude, we don't only imply the amount of a displacement; we also imply its orientation  just a number with a unit  As just an illustration, the professor might repeatedly pace back and forth, possibly

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On prevent the puppies from tearing down the board, Ginger must apply 32 N of force to the opposite side.

The total force acting on the system is equal to the acceleration of the center of mass times the system's total mass. When applied to an extended object, Newton's second law, F = ma, predicts the motion of a specific reference point for this object.

The vector sum of all forces acting on an object is known as the net force. In other words, the net force is the sum of all the forces, taking into mind that a force is a vector and that two forces that have the same magnitude but facing the opposite direction will cancel each other out.

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The 2.00-kilogram object weighs 19.6 newtons on Earth, its weight on the Mars is 2.00 kg.

The mass is known as the amount of matter which is contained in a body.  It is a property which is consistent in a body regardless of the body's current location, gravitational pull and various other factors which exist.

Mass and weight are two separate quantities. Weight is computed as a product of mass and acceleration. Mass has a property to remain constant and it means that whether the object is on any planet, irrespective of that, it will be constant. The mass remains the same that is 2.00 kg.

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In a year, the earth revolves around the sun once in a circular motion. Therefore, the earth will orbit the sun at a 2.95 m/s speed.

Planets in our solar system did not appear out of thin air. Neither did the sun. They were all a part of a large cloud of gas and dust. Gravity accumulated a lot of material in the center to form the sun. As it spun around the forming sun, the extra matter clashed and gathered together. Some would be capable of attracting more gas and dust, eventually forming planets, because to their powerful gravitational forces.

The answer to the query is

v = 2πR / T

2R equals 6.28 * 9.3 * 107 miles.

T = 24 * 3600 * 365 = 3.15 × 10⁷ sec

v = 9.3 / 3.15 = 2.95 m/s.

Hence, the earth's speed of the earth around the sun will be 2.95 m/s.

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The electrostatic force connecting two electrostatic force is expressed by the statement that it is stronger when the voltages of the items are greater.

The study of energies between charged, as outlined by Coulomb's Law, is known as electrostatics. We introduce the idea of a magnetic charge encircling charges. The electric current near a line and a plane are examples that we go through as we create detailed definition for both "electric potential" and "voltage."

Examples involving electrostatic forces are: With the aid of a comb, we can create electrostatic force when i pass a piece of paper through to the oil in my heads. When one balloon is brushed with hair, the other balloon becomes drawn to it.

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Platform moves towards to west with a speed of v0/2 when the dog moves towards to east at a speed of v0, in accordance with the rule of conservation of momentum.

The speed at which an object's location changes in any direction. The distance travelled to the time needed to travel that distance is known as speed. Since speed only has a magnitude and no direction, it is a scalar quantity.

Acceleration is the method of changing a speed with which an object moves. If a substance's velocity does not change, it is not accelerating. Acceleration is a vector quantity.

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The driver of a car traveling at 30.2 m/s applies the brakes and undergoes a constant deceleration of 1.4 m/s 2 . The car makes 139 revolutions.

A change in velocity that does not alter over time is referred to as a constant acceleration. A car's average acceleration stays constant at 20 mph per minute even if it increases its speed by 20 mph in one minute and another 20 mph the next.

Acceleration in the direction crosswise to the direction of the velocity is always referred to as deceleration. Deceleration always slows down motion. However, negative acceleration is just acceleration in the opposite direction according to the selected coordinate system.

Given:

v₀ = 30 m/s

v = 0 m/s

a = -1.4 m/s²

Find: Δx

v² = v₀² + 2aΔx

(0 m/s)

² = (30 m/s)

² + 2 (-1.4 m/s²) Δx

Δx = 321.43 m

The tires' circumference is 2 m plus 0.37 m, or 2.32 m. Therefore:

139 rev = 321.43 m (1 rev / 2.32 m)

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The angle (in degrees) of the water surface with the horizontal is 14.3 degrees

The angle of the water surface with the horizontal can be determined using the concept of the accelerations of gravity and centripetal force. The acceleration of gravity acts in the downward direction, and the centripetal force acts in the opposite direction of the acceleration. In this case, the horizontal acceleration of the tank is 2.45 m/s^2, which acts in the opposite direction of the gravitational acceleration.

The angle of the water surface with the horizontal can be found by taking the tangent of the ratio of the centripetal acceleration to the gravitational acceleration.

tan(theta) = (centripetal acceleration) / (gravitational acceleration)

tan(theta) = (2.45 m/s^2) / (9.8 m/s^2) = 0.25

Theta = 14.3 degrees

So the angle of the water surface with the horizontal is 14.3 degrees.

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In 1957, Sputnik I was propelled into orbit around the planet. Its speed when it was at its perigee was was approximately 7.935 x 10^3 m/s.

The speed of an object in orbit around Earth can be calculated using the vis-viva equation:

v = sqrt(GM/(r))

where v is the velocity of the object, G is the gravitational constant, M is the mass of the Earth, and r is the distance of the object from the center of the Earth.

Given the perigee distance of 6.41 x 10^6 m and the mass of the Earth being 5.972 x 10^24 kg, the velocity of Sputnik I at its perigee would be:

v = sqrt((6.67 x 10^-11 N*(m^2)/(kg^2) * (5.972 x 10^24 kg)) / (6.41 x 10^6 m))

v = 7.935 x 10^3 m/s

So, the speed of Sputnik I when it was at its perigee was approximately 7.935 x 10^3 m/s.

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The new volume of Carbon dioxide be 5.36 mL.

Boyle's Law can also be used to explain how a syringe operates. A syringe's plunger being drawn out causes the volume inside the barrel to expand, which lowers the pressure inside the barrel.

According to Boyle's Law, P1V1=P2V2 while the temperature is constant. In accordance with Boyle's Law, pressure and volume are inversely linked. In other words, volume decreases as pressure rises (and vice versa).

Given:

Volume (V1) =5ml

Pressure (P1) = 30 mmHg

Pressure (P2) =28 mmHg

Volume (V2) = ?

From Boyle's Law,

[tex]P_1V_1=P_2V_2[/tex]

[tex]30*5=28*V_2[/tex]

[tex]V_2=\frac{30*5}{28}[/tex]

[tex]V_2= 5.36 ml[/tex]

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If there is no friction and block B pushes block A with a force of magnitude F, therefore FA will also have a magnitude F, according to Newton's third law of motion.

According to Newton's third law, each force (action) in nature has an opposite and equal response. Whenever object B pulls on object A, item A pulls back on item B with an equal and opposing force.

Given :

Mass of Block A = M

Mass of Block B = 3M

Force exerted on block A is FA

Because both boxes are in contact.

Hence, force exerted by block A on block B is same that is FA

Force exerted by block B on block A has magnitude F (Given)

From Newton's third law of motion, the magnitude of FA is F Newton.

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The required mass of the object with an acceleration of 10 m/s² and a force of 10 newtons to accelerate it is 1 kg.

From Newton's second's law of motion, force is described in equation form as, F = m × a

where, m is mass

a is acceleration

Given that,

Acceleration of an object = 10 m/s²

Force needed to accelerate the object = 10 N

Object's mass = ?

From the above equation, making mass as the subject, we have,

F = m × a

m = F/a = 10/10 = 1 kg

Thus, the required object's mass is calculated to be 1 kg.

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The statement is False, there is no limit to the mass with which a star can be born.

A star is a celestial body comprised of a mass of gas, primarily hydrogen and helium, that gives off heat and light through nuclear fusion reactions in its core. Stars are the most widely recognized astronomical objects and serve as a fundamental reference point in astronomy. Stars come in a variety of sizes and colors and are classified based on their temperature, size, and luminosity.

There are many different types of stars, including main-sequence stars, red giants, white dwarfs, and neutron stars. Stars are formed when large clouds of gas and dust collapse under the force of gravity, causing the material to heat up and form a protostar. Over time, the protostar becomes hot enough to trigger nuclear fusion reactions, and it is at this point that the star becomes visible to observers on Earth. Stars eventually die out, either exploding as supernovae or fading away as white dwarfs. Starlight is the source of illumination for our night sky, and the beauty of stars has captivated humans since the dawn of time.

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An extinguishing agent, including such water or chemicals, is stored in a fire extinguisher. It is not intended to put out a large fire, only a small one.

To burn, fire needs fuel, heat, and oxygen. In order to stop a fire from spreading, fire extinguishers use a substance to reduce the heat of the flames, smother the fuel, or cut off the oxygen supply. If used by a trained person, a portable fire extinguisher can quickly put out a small fire.

First off, red is the color linked to both danger and fire, making fire extinguishers an obvious association. Second, red is the color that is easiest to see, particularly in darker settings like a smoke-filled

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A fish under water appears to be at a different depth than it actually is due to the refraction of light as it passes through the water.

When light travels through a medium with a different index of refraction, such as air to water, it bends, or refracts. This causes objects to appear displaced, or closer or farther away than they actually are. Because water has a higher refractive index than air, light bends more when it enters the water, causing objects, like fish, to appear closer to the surface than they actually are.

The result is that the fish will appear to be deeper in the water than it actually is.

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