How are mass and weight different? how does gravity affect mass and weight

This question involves the concepts of the bouyant force, weight, and volume.

The area of the slab is "[tex]\frac{m}{h(\rho_w-\rho_s)}[/tex]".

In order for the styrofoam slab to float on the water, the buoyant force acting on it must be equal to its weight:

[tex]Weight = Buoyant\ Force\\(m+M)g=\rho_w Vg\\m+M=\rho_w V[/tex]

where,

m = mass of swimmer

A = area of styrofoam slab = ?

h = thickness of strrofoam slab

[tex]\rho_s[/tex] = density of styrofoam slab

[tex]\rho_w[/tex] = density of water

M = mass of styrofoam slab = [tex]Ah\rho_s[/tex]

V = volume of styrofoam slab = Ah

Therefore,

[tex]m+(Ah\rho_s) = Ah\rho_w\\m= Ah(\rho_w-\rho_s)\\\\A=\frac{m}{h(\rho_w-\rho_s)}[/tex]

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2 or second vector best represents the force that could act concurrently with force A to produce force B.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

A resultant force vector is described as a single vector that has the same consequence as several other vectors taken together.To create the resulting force vector, two vectors facing the opposite direction are subtracted from one another. Here, the vector B is pointing in the opposite direction of the vector A, and the resulting force vector is called R.

2 or second vector best represents the force that could act concurrently with force A to produce force B.

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sublimation is the correct answer

Elastic collisions, where kinetic energy and momentum are conserved, can be demonstrated through the collision of glass marbles, steel blocks on ice, and carts with spring bumpers on an air track. These examples showcase momentum transfer and energy conservation in a nearly perfect manner, providing insight into the principles of physics.

Elastic collisions are fascinating phenomena where total kinetic energy and momentum are conserved. Here are three examples:

Although truly elastic collisions are rare in everyday experiences and more common in the microscopic realm of subatomic particles, these examples provide a good understanding of the concept within observable scenarios.

Upon striking the ground, the person's momentum goes to zero as they stop, with the momentum transferred to the Earth. Bending the knees upon landing extends the stopping distance, reducing the force experienced.

When a person jumps from a tree to the ground, the momentum of the person upon striking the ground changes drastically. Momentum is a product of the mass of an object and its velocity. In this case, the person carries momentum as they fall, due to their velocity and mass. Upon impact with the ground, this momentum is quickly reduced to zero because the person comes to a stop. According to the law of conservation of momentum, the momentum lost by the person is transferred to the Earth.

However, because the Earth's mass is so immense compared to that of the person, the change in the Earth's velocity is negligible and unobservable. If the person lands with stiff knees, a large force is experienced over a shorter stopping distance, while bending the knees extends the stopping distance, resulting in a smaller force felt by the person.

Due process of law is a legal concept that mandates the fair and equal application of the law, ensuring that no individual is deprived of life, liberty, or property without proper legal procedures and protections, as stated in the Fifth and Fourteenth Amendments of the U.S. Constitution.

The best definition of the term due process of law is a legal principle that ensures the government respects all legal rights owed to a person. According to the Fifth and Fourteenth Amendments of the U.S. Constitution, no one shall be "deprived of life, liberty, or property without due process of law." This includes two aspects: procedural due process, which pertains to the methods and processes the government must follow, and substantive due process, which relates to the government's obligations to treat individuals fairly and not to violate certain fundamental rights.

 a)

At constant pressure, the work done for gas to expand is given by:

W = PΔV

⇒W = 1.65 × 10⁵Pa × (0.320 - 0.110)m³= 3.46 × 10⁴J

b)

The total heat (Q) added to the system is used in work done and the remaining energy goes into internal energy.

ΔU = ΔQ-ΔW

⇒ΔU = 1.15 ×10⁵J - 3.46 × 10⁴J = 0.8 × 10⁵ J

c)

It does not matter that the gas is ideal or real because the work done would remain same. It would vary for real gases only at very high pressure.

(a). The work done by the gas is [tex]\boxed{3.47 \times {{10}^4}\,{\text{J}}}[/tex].

(b). The change in the internal energy of the gas is [tex]\boxed{8.03 \times {{10}^4}\,{\text{J}}}[/tex].

(c). There is no effect of the gas being ideal gas or real gas on the work done by the gas.

Further Explanation:

Given:

The initial volume of the gas is [tex]0.110\,{{\text{m}}^{\text{3}}}[/tex] .

The final volume of the gas is [tex]0.320\,{{\text{m}}^{\text{3}}}[/tex] .

The constant pressure at which the expansion of the gas takes place is [tex]1.65 \times {10^5}\,{\text{Pa}}[/tex] .

The amount of heat added to the gas is [tex]1.15 \times {10^5}\,{\text{J}}[/tex].

Concept:

Part (a):

The expansion of the gas is taking place at constant pressure. Therefore, the work done by the gas is:

[tex]W = P\left( {{V_f} - {V_i}}\right)[/tex]

Here, [tex]P[/tex] is the pressure and [tex]{V_f}[/tex] is the final volume and [tex]{V_i}[/tex] is the initial volume of the gas.

Substitute the values of [tex]P[/tex] , [tex]{V_i}[/tex] and [tex]{V_f}[/tex] in above expression .

[tex]\begin{aligned}W&= \left( {1.65 \times {{10}^5}} \right) \times \left( {0.320 - 0.110} \right)\\&= 3.465 \times {10^4}\,{\text{J}}\\&\approx 3.{\text{47}} \times {\text{1}}{{\text{0}}^4}\,{\text{J}}\\\end{aligned}[/tex]

Therefore, the work done by the gas is [tex]\boxed{3.47 \times {{10}^4}\,{\text{J}}}[/tex]

Part (b):

The change in internal energy of the gas is given by the first law of thermodynamics:

[tex]\begin{aligned}\Delta Q = \Delta U + W \hfill\\\Delta U = \Delta Q - W \hfill\\\end{aligned}[/tex]

Here, [tex]\Delta Q[/tex] is the heat added, [tex]\Delta U[/tex] is the change in internal energy of system and  [tex]W[/tex] is the work done by the gas.

Substitute the values of [tex]\Delta Q[/tex] and [tex]W[/tex] in above equation.

Part (c):

The ideal gas or the real gas does not affect the process of the expansion of gas because the change in energy of the gas is given by the First law of thermodynamics. The first law of thermodynamics is based on the conservation of energy.

The energy of a system will always remain conserved whether it has the real gas or the ideal gas.

Thus, there is no effect of the gas being ideal gas or real gas on the work done by the gas.

Learn More:

1. In the calorimetry experiment which energy will be calculated during the heat exchange https://brainly.com/question/2566525

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Answer Details:

Grade: High School

Subject: Physics

Chapter: Law of Thermodynamics

Keywords:  Ideal gas, cylinder, first law of thermodynamics, pressure constant, 0.110m^3 to 0.320 m^3, expansion, change in internal energy, work done by gas.

Final answer:

To find the average force of traction for the car, you can use the work-energy principle to determine the work done, which equals the change in kinetic energy. The work done is equal to the force multiplied by the distance, and from this, the average force can be calculated. The average force of traction in this case is 2723.17 N.

Explanation:

To calculate the average force of traction for a 1250 kg car that accelerates from rest to 6.13 m/s over a distance of 8.58 m, we can use the work-energy principle. This principle states that the work done by a force on an object is equal to the change in kinetic energy of the object.

First, let's find the final kinetic energy (KE) of the car:

KE = 0.5 * m * v^2

KE = 0.5 * 1250 kg * (6.13 m/s)^2

KE = 23369.8125 J (joules)

The work done (W) by the traction force is also the change in kinetic energy, so W = KE = 23369.8125 J. Since work is defined as the force multiplied by the distance (W = F * d), we can rearrange the formula to solve for the average force (F):

F = W / d

F = 23369.8125 J / 8.58 m

F = 2723.17 N (newtons)

Therefore, the average force of traction that the car experienced was 2723.17 N.

Answer:

All dwarf planets likely contain a mixture of rock and ice

Explanation:

The true statement about dwarf planets is that Pluto was the first to be discovered. Dwarf planets share common features like orbiting the sun and having a near-spherical shape but have not cleared their orbits of other objects.

The true statement about dwarf planets is that Pluto was the first dwarf planet to be discovered. Dwarf planets are celestial bodies that meet two of the three criteria set by the International Astronomical Union (IAU) for being a planet: they orbit the sun and have sufficient mass for a nearly spherical shape, but they have not cleared their orbits of other objects. While not all dwarf planets are beyond the outer planets (Ceres, for example, is located in the asteroid belt between Mars and Jupiter), all discovered dwarf planets have a mixture of rock and ice, and with the exception of Ceres, they are found beyond Neptune. Pluto, which was initially classified as one of the major planets, became known as a dwarf planet due to the redefinition of what constitutes a planet in 2006.

Answer:

with longer vectors

Explanation:

In any motion map of vectors we know that length of vectors is used to represent the magnitude

while the direction of the vector is represented by the angle made by the vector.

So here we have to represent the larger or greater velocity

This represents the magnitude of the vector to be more

so the correct answer would be

"with Longer vectors" we can show or represent velocity vector of greater velocity.

Answer:

The new volume of the gas is 2 m³

Explanation:

It is given that,

Initial temperature, [tex]T_1=5\ K[/tex]

Initial volume, [tex]V_1=1\ m^3[/tex]            

Final temperature, [tex]T_2=10\ K[/tex]

We need to find the new volume. The Charles law gives the relation between the temperature and the volume of the gas.    

i.e

[tex]V\propto T[/tex]

[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]

[tex]V_2=\dfrac{V_1}{T_1}\times T_2[/tex]

[tex]V_2=\dfrac{1}{5}\times 10[/tex]

[tex]V_2=2\ m^3[/tex]

So, the new volume of the gas is 2 m³. Hence, this is the required solution.

Final answer:

The frequency of the spring in the NASA test vehicle is approximately 2.28 Hz.

Explanation:

To determine the frequency of the spring in the NASA test vehicle, we need to use the equation for the frequency of a mass-spring system:

f = 1 / (2π) * sqrt(k / m)

Where f is the frequency, k is the force constant of the spring, and m is the mass of the ball.

Plugging in the given values, we get:

f = 1 / (2π) * sqrt(229 N/m / 3.50 kg)

Calculating this, we find that the frequency is approximately 2.28 Hz.

From the calculations and the data supplied, the braking distance is 65 m

The braking force is the force that is applied as the object comes to rest.

We know that the mass of the car is obtained from; 14,700 N/10 m/s^2 = 1470 Kg

Now;

a = F/m = 7100 N/1470 Kg

a = 4.8 m/s^2

Given that;

v^2 = u^2 - 2as

u^2 = 2as

s =  u^2/2a

s = (25)^2/2 * 4.8

s = 625/9.6

s = 65 m

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The magnitude of the acceleration of the cream tangerine as it passes by each window is constant at approximately 9.8 m/s² due to Earth's gravity.

You asked about the magnitude of the acceleration of a cream tangerine as it passes by three evenly spaced windows. When any object is thrown upward or downward close to the Earth's surface, it is accelerated by gravity. This acceleration is constant and has a magnitude of approximately 9.8 m/s² downward. This means that no matter which window the cream tangerine is passing, the magnitude of its acceleration will be the same because gravity is a constant force close to the surface of the Earth. Therefore, when ranking the windows according to the magnitude of acceleration of the cream tangerine while passing them, they will all be the same and thus tied for first place.

Final answer:

Given the density of gold and the dimensions of a 10-centimeter cube, a solid gold phone would weigh about 45 lbs, making it too heavy to casually pass around a table. Therefore, the correct answer is 3.

Explanation:

The question asks if a solid gold phone, with a volume equal to a 10-centimeter cube of gold, could be casually passed around a table from hand to hand. Given the density of gold is 19,300 kg/m³, we first calculate the volume of the cube in cubic meters (m³) by converting its dimensions from centimeters to meters (0.1 m x 0.1 m x 0.1 m = 0.001 m³). Multiplying this volume by the density of gold gives us the mass of the gold phone (0.001 m³ x 19,300 kg/m³ = 19.3 kg). Converting this mass into pounds (1 kg ≈ 2.2 lbs), the weight of the phone is approximately 42.46 lbs.

Therefore, the correct answer is 3: No; it weighs about 45 lbs. Such a phone would be quite heavy and not easily passed around from hand to hand.

Answer:

c for plato users

Explanation:

The answer is c, to change alternating current into direct current.

Please mark me as brainliest :)

Final answer:

Nuclear energy is not an example of kinetic energy; it is a form of potential energy stored within the nucleus of atoms. Kinetic energy is associated with the motion of objects, while nuclear energy involves the potential stored and released during nuclear reactions.

Explanation:

Kinetic energy is the energy that an object possesses due to its motion. It can be expressed mathematically as KE = ½mv², where 'm' is the object's mass and 'v' is its velocity. Examples of kinetic energy include a moving vehicle, a spinning turbine, and the thermal energy of atoms and molecules moving within a substance. However, not all forms of energy listed are examples of kinetic energy.

Nuclear energy is different from kinetic energy. It is a form of potential energy that is stored within the nucleus of atoms and is released during nuclear reactions such as fission or fusion. Therefore, nuclear energy is the correct answer to the question, as it is not a form of kinetic energy.

Other forms of energy such as electrical energy and chemical energy can involve kinetic energy when charges travel through a conductor or when molecular bonds are broken and rearranged, respectively. However, at a fundamental level, these forms also incorporate potential energy components.

A substance that is made up of only one kind of atom is called an element.

Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical or physical means. Each element is unique and consists entirely of one type of atom. For example, hydrogen, calcium, and iron are all elements, as they are each made up of only one type of atom.

The Periodic Table of the Elements lists all known elements, providing information about their atomic structure and properties. Many substances in the world are made up of combinations of different elements.

According to Lenz's law, an induced current is generated in a copper wire loop when its radius near a solenoid increases. The direction of this induced current opposes the increasing radius of the loop. This direction can also be determined by considering the magnetic force on the charges in the wire loop.

a. According to Lenz's law, when the radius of the copper wire loop near the solenoid increases, an induced current is generated in the loop. This induced current flows in a direction that creates a magnetic field opposing the change in magnetic flux through the loop. Therefore, the direction of the induced current would be such that it opposes the increasing radius of the loop.

b. To check the direction of the induced current, we can consider the magnetic force on the charges in the wire loop. As the radius of the loop increases, the magnetic field due to the solenoid through the loop also increases. By applying the right-hand rule for the direction of the magnetic force on a moving charge, we find that the induced current in the loop would flow in a direction opposite to the increasing radius, in order to resist the change in magnetic field.

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The answer is not D.  Just got it incorrect on my quiz.

Answer:

A.  The light will take 200 million years to reach Earth.

Explanation:

Answer:

Explanation:

The gravitation force of attraction between the two bodies is directly proportional tp the product of masses of two bodies and inversely proportional to the square of distance between them.

1200

Then; dn=k  

We can use the relationship to find the unknown, k:  

k = dn  

k = (24)(400) = 9600  

Then use k to find the unknown n:  

k= dn  

9600 = 8n  

n = 1200  

= 200 rpm

Answer: Fossils range from simple to complex across rock layers.

Explanation:

The finding of the fossils in the different layers of the earth crust suggests that the evolution of the living organisms from simple primitive one to the most complex organisms. The examination and determination of the morphological, anatomical and molecular features of the organisms in the fossils have helped in determining the chronological age and has also been helped in determination of the age of earth with respect to the fossils.

The question involves analyzing the motion of a football being kicked with given initial velocity and angle in Physics.

Physics: The question involves analyzing the motion of a football being kicked with given initial velocity and angle.

Example: Ingrid kicks a football with an initial velocity of 12 m/s at an angle of 45 degrees relative to the ground.

Concepts: Projectile motion, velocity, angle, and distance traveled are essential in solving such problems in physics.