Why is air considered a fluid

Answer:

Image result for what's newton's second law

Newton's second law is one of the most important in all of physics. For a body whose mass m is constant, it can be written in the form F = ma, where F (force) and a (acceleration) are both vector quantities. If a body has a net force acting on it, it is accelerated in accordance with the equation.

Why do teachers give such hard questions? anyways hopefully your question will get answered! (btw i also need the points but yeah gl!!!)

Answer:

Explanation:

P=F/A

F=P(A)

F=45(0.4)

F=18N. HOPE IT HELPS:)

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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Answer:

The answer is D. becomes more common in the population

Explanation:

Answer:

Time taken to accelerate is 8s.

Explanation:

\(v=u+at\)
\(50=10+5t\)
t=8

As per the given table, Gravitational Forces are proportional to the masses of the two objects. The correct option is A.

Because the gravitational forces are not always the strongest between objects of the same mass, the evidence does not support assertion B.

Since the gravitational forces do not always correlate with one item being more massive than the other, the data does not strongly support argument C either. For instance, despite having two distinct masses, the first entry has a higher force.

The facts also do not support Claim D since there are circumstances in which the gravitational force surpasses predetermined upper bounds.

As gravitational forces typically increase with object mass, Claim A is the one that best fits the evidence.

Thus, the correct option is A.

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Answer:

A 100 meters per minute.

Explanation:

Just divide 600 by 6

Answer:

Answer: 2nd Law - The soccer ball weighs less than the bowling ball, so you need less force to get it to have the same acceleration as the bowling ball.

Explanation:

1. The kinetic energy of the truck is 1959940.8 J

2. The kinetic energy of the car is 463037.04 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 6000 × 25.56²

KE = 1959940.8 J

Thus, the kinetic energy is 1959940.8 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 1200 × 27.78²

KE = 463037.04 J

Thus, the kinetic energy is 463037.04 J

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Answer:

The Holographic Principle, proposed by physicist Gerard 't Hooft and further developed by Juan Maldacena, is a fascinating concept in theoretical physics that has sparked significant interest and research. In the context of the AdS/CFT correspondence, it suggests that a gravitational theory in a higher-dimensional space can be mathematically equivalent to a quantum field theory in a lower-dimensional space.

At the heart of the Holographic Principle is the idea that the information and dynamics of a higher-dimensional theory can be fully captured by its boundary, implying that the entire bulk can be "holographically" encoded on the boundary. This concept challenges our conventional understanding of the relationship between space, gravity, and quantum mechanics.

The holographic duality proposed by Maldacena specifically relates a gravitational theory in Anti-de Sitter space (AdS) with a conformal field theory (CFT) in one fewer dimension. In this correspondence, the gravitational theory describes a curved space-time with gravity, while the CFT is a quantum field theory without gravity but living on the boundary of the AdS space. The holographic duality suggests that the two theories are mathematically equivalent and provide equivalent descriptions of the same physical phenomena.

The mathematical foundations of the AdS/CFT correspondence involve advanced concepts from string theory and quantum field theory. String theory postulates that fundamental particles are not point-like entities but rather tiny vibrating strings. By considering these strings propagating in a higher-dimensional space, theorists discovered that they naturally give rise to gravity. The holographic duality emerged as a surprising consequence of studying string theory in the AdS space.

The implications of the Holographic Principle are profound. First and foremost, it suggests a deep connection between gravity and quantum mechanics, two fundamental pillars of modern physics that have been notoriously difficult to reconcile. The holographic duality provides a framework to study strongly interacting quantum systems in terms of gravity, enabling insights into the nature of black holes, the behavior of matter in extreme conditions, and other phenomena that are challenging to analyze using traditional methods.

The Holographic Principle also has potential implications for our understanding of black holes. It proposes that the information that falls into a black hole is not destroyed, as suggested by the Hawking radiation phenomenon, but rather encoded on its event horizon. This idea, known as the "holographic encoding of information," has stirred intense debates and ongoing research in the field of black hole information paradox.

Furthermore, the Holographic Principle challenges our traditional notions of spacetime. It suggests that spacetime, as we perceive it, might emerge as an approximation or an emergent property from a more fundamental description involving quantum information. This notion aligns with the concept of "entanglement entropy," which measures the entanglement between quantum states and has been linked to the geometry of spacetime.

The potential revolutionary impact of the Holographic Principle lies in its potential to provide a unified framework for understanding quantum gravity and resolving long-standing mysteries in theoretical physics. It opens new avenues for studying the nature of black holes, the behavior of matter in extreme conditions, and the fundamental structure of the universe. However, it is important to note that the Holographic Principle is still an area of active research, and many aspects of its implications and applications continue to be explored and refined by physicists.

Answer:

1. 5 ft-lbs

2. 600 ft-lbs

The power of the first equation is 5 ft-lbs/sec and the power of the second equation is 10 ft-lbs/sec.

The power is a proportion of how rapidly work is being finished. It is the rate at which energy is moved or work is performed. The unit of force is watts (W), which is comparable to joules each second (J/s).

To compute power, we utilize the equation P = W/t, where P is power, W is work, and t is time. Work is how much energy moved when a power is applied over a distance, and it is estimated in foot-pounds (ft-lbs) or joules (J).

In the primary condition, the power is determined by partitioning 250 ft-lbs of work when it took to accomplish the work, which is 50 seconds. Thusly, the power is 5 ft-lbs/sec.

In the subsequent condition, we first proselyte 4 minutes to seconds, which is 240 seconds. Then, at that point, we partition 2400 ft-lbs of work by 240 seconds to get a force of 10 ft-lbs/sec.

The units for power are dependably ft-lbs/sec or J/s, and they address how much work done per unit time.

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Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

C, Each type of atom contains a different number of protons in its nucleus.

Each type of atom contains a different number of protons in its nucleus. Correct option is C.

Protons: Protons are positively charged particles found in the nucleus of an atom. They have a mass of approximately 1 atomic mass unit (amu). The number of protons in an atom is called the atomic number, and it determines the element's identity. For example, all hydrogen atoms have 1 proton, all helium atoms have 2 protons, and so on.

Neutrons: Neutrons are neutral particles found in the nucleus alongside protons. They also have a mass of approximately 1 amu. Neutrons help stabilize the nucleus by counteracting the repulsive forces between positively charged protons. The number of neutrons can vary for atoms of the same element, leading to different isotopes of that element.

Electrons: Electrons are negatively charged particles that orbit the nucleus in energy levels or electron shells. They have a much smaller mass compared to protons and neutrons. Electrons are involved in chemical reactions and the formation of chemical bonds. The number of electrons usually equals the number of protons in an atom, ensuring overall electrical neutrality.

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Answer:

Forty million years ago, the continent of India, which was being carried northward by the Indo-Australian plate, collided with Asia forming the Himalayan mountain range (fold mountains). Since the initial encounter, the subcontinent of India has moved 2,000 kilometers farther north at a rate of 5 centimeters a year, sliding beneath Asia as it moves. In 10 million years India will plow into Tibet a further 180km. This is about the width of Nepal.

Answer:Since the initial encounter, the subcontinent of India has moved 2,000 kilometers farther north at a rate of 5 centimeters a year, sliding beneath Asia as it moves. In 10 million years India will plow into Tibet a further 180km. This is about the width of Nepal.

Answer: B.) Rotational motion

Explanation: An object can be explained as exhibiting a rotational state of motion if the movement of the object occurs along a circular path such that the body is positioned about a fixed point, that is the axis of rotation is fixed. Therefore, the axis or rotation point does not change and the body moves in a circular path. Rotational motion could be observed during the motion of a fan, wheels of cars or bicycles. Here, the axis of rotation is fixed at a point and the wheel of the car or blades of the fan moves along a circular path about the fixed point.

Answer:

Mechanical efficiency accounts for losses due to engine friction and ancillaries such as the lubricant pump, coolant pump, fuel pump and cooling fan. Engine friction arises whenever there is relative motion between parts. Journal bearings on the crankshaft, connecting rods and camshaft as well as piston rings and piston skirts are important sources

Explanation:

Answer:

Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

Thus, Since the turn of the 20th century, glass has been made with calcium fluoride, a novel substance. It is a solid that dissolves readily in water and has a special physical and chemical makeup that makes it suitable for usage as a glassmaking material.

Glass used in windows, bottles, and other glass goods was formerly created from calcium silicates before the invention of this substance. The new glass, referred to as glass with added fluorides, has a number of advantages over calcium silicates, which have drawbacks that make them unsuitable for the creation of modern glass.

Calcium Fluorine is a naturally occurring element that is frequently found in rock, soil, plants, and animals.

Thus, Calcium Compunds-The fluoride,CaF²,is important to the production of hydrofluoric acid,Wich is made from CaF² by the action of sulfuric acids.CaF² us used laboratory instruments as a window material both infrared and ultraviolet radiation.

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The air currents across the continents would determine the distribution of the air.

Air currents across the continents are primarily driven by temperature differences and the rotation of the Earth. The warm air near the equator rises and flows towards the poles, while the cooler air near the poles sinks and flows towards the equator.

This creates large-scale circulation patterns known as Hadley cells, Ferrell cells, and Polar cells. These cells are responsible for the trade winds, westerlies, and easterlies, respectively. Additionally, there are also local winds caused by differences in terrain, such as sea breezes and valley breezes.

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Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.

Explanation:

Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping

Answer:0 km from its s

Explanation: 50 - (50 * 1) = 0

Answer:

A)

Explanation:

amplitude is the amount of amps or decibals a sound wave is and is measured by going high and low depending on the sound.

Answer:

shortstop

Explanation:

cause there are 5 positions ( i think)

Center, Wingers, Defensemen, Goalie, Forwards.

¯\_(ツ)_/¯

Answer:

d.shortstop

Explanation: