stored energy and the energy of positions are ________________ energy

B. Piron > Pwater > Pwax

Wax normally floats in water,it is less dense than water.

Iron is more dense than water, so it sinks.

Answer:

B.    P iron >  P water > P wax

To change the direction in which an object is moving, you need to apply a force in the desired direction. By doing so, you can alter the object's velocity and redirect its path. This was demonstrated by Sir Isaac Newton, a famous physicist and mathematician.

To change the direction in which an object is moving, one needs to apply a force in the desired direction. This was demonstrated by Sir Isaac Newton, a famous physicist and mathematician. According to Newton's first law of motion, an object will continue moving in a straight line at a constant speed unless acted upon by an external force.
To alter the object's direction, a force must be applied perpendicular to the current direction of motion. This force causes the object to change its velocity, which is a vector quantity that includes both speed and direction. The greater the force applied, the quicker the change in direction will occur.
For example, if you want to change the direction of a rolling ball, you can kick it on the side. The force from your kick acts perpendicular to the ball's initial motion, causing it to change direction.
In conclusion, to change the direction in which an object is moving, you need to apply a force in the desired direction. By doing so, you can alter the object's velocity and redirect its path.

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A binary star system is made of stars, one of which is brighter than the other. An astronomers are able to detect the dimmer star because its gravity causes the bright star to wobble.

Basically, a star means giant astronomical or celestial object that contains a luminous sphere of plasma and bounded together by its own gravitational force. A binary star system refers to a star system that typically comprises two stars that includes a brighter star and dimmer star.

The dimmer star are easily detectable by astronomers because its gravity causes the bright star to wobble and can be spotted by astronomers through an observation of a phenomenon that is referred to as an eclipsing binary.

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Answer:

Resistance / Edge 2022

Explanation:

This is late, but just in case someone needs the answer. Hope this helps!

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Tungsten metal is used exclusively for making the filament of electric bulbs because it has a very high melting point

Tungsten metal is used exclusively for making the filament of electric bulbs because it has a very high melting point. Due to its high melting point, the tungsten filament can be kept white-hot without melting away

Tungsten wire is used as the filament in light bulbs. It glows white-hot as current passes through it.

Tungsten is used in light bulbs because its high resistivity converts electric energy into light and heat.

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Answer:

The correct option is;

-Pointing the fan exhaust upward

Explanation:

The fan cart transfers reaction force from the jet of air it blows through the exhaust into motion in the opposite direction of the jet. By pointing the fan exhaust upwards, the direction of motion of the cart is therefore, into the ground. Due to the solid nature of the ground the motion is resisted, and by Newton's first law of motion, a body will remain in motion unless resisted by a force. In the case of the question, the ground is resisting the motion of the cart and the cart will remain at rest and having zero acceleration.

Explanation:

power=f×v. recall= distances/ time

= f× d/t

= 30 × 2/5

=12watt

Answer:

Many of these gases occur naturally, but human activity is increasing the concentrations of some of them in the atmosphere, in particular:

carbon dioxide (CO2)

methane.

nitrous oxide.

fluorinated gases.

Explanation:

Answer: Obviously carbon dioxide, nitrogen argon, neon, helium, krypton.... etc etc....

Explanation: Have a great day!!!

The globe on which we dwell rotates, causing the celestial sphere to complete one full rotation every day.

A celestial sphere, which would be thought to have an unlimited radius, is a helpful concept for explaining the positions of the stars in the sky. The pole and tropical plane of a celestial sphere are congruent with those of earth, and their centers are the same.

The celestial sphere, which is a hypothetical sphere centered just on Earth and onto all of which celestial bodies may be projected, is used to define the positions of the sky's objects. Its celestial sphere is indeed a valuable tool for locating things in space even if it is based on such a geocentric framework.

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The activation energy of the composite reaction is 25 kJ mol-1.

In a composite reaction with a fast pre-equilibrium step followed by an elementary step, the activation energy of the composite reaction is determined by the highest activation energy in the rate-determining step. In this case, the fast pre-equilibrium step has forward and reverse activation energies of 25 kJ mol-1 and 38 kJ mol-1, respectively, while the elementary step has an activation energy of 10 kJ mol-1.

Since the forward activation energy in the pre-equilibrium step (25 kJ mol-1) is the highest value, it determines the

activation energy of the composite reaction.

Summary: Considering the given activation energies in the pre-equilibrium and elementary steps, the activation energy of the composite reaction is 25 kJ mol-1.

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The probability is 0.006

                          \(\begin{aligned}\\\\P &= 0.6\times0.6\times0.6\times0.6\times0.6\times 0.6\times0.6\times0.6\times0.6\times0.6\\\\&= 0.0060466\\\\&\approx0.006\end{aligned}\)

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Answer:

An animal that doesn’t eat meat is called a herbivore. An few examples would be cows, rabbits, horses, and goats.

:)

Answer:

the electric and magnetic fields that make up an electromagnetic wave are perpendicular (at right angles) to each other. Both fields are also perpendicular to the direction that the wave travels. Therefore, an electromagnetic wave is a transverse wave.

Explanation:

Conventional method of heat transfer.​

How it works?

For example:

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The wavelength of the emitted photon is 5.48 x 10^-17 m, and the mass of the particle is 1.05 x 10^-26 kg.

The energy levels of a particle in a one-dimensional box are given by:

En = (n^2 * h^2)/(8mL^2)

where n is the quantum number, h is Planck's constant, m is the mass of the particle, and L is the length of the box.

We are given En = 51.5 MeV and En+1 = 74.2 MeV, and L = 10 fm.

Using En, we can find the mass of the particle:

m = (n^2 * h^2)/(8L^2 * En)

m = (5^2 * (6.626 x 10^-34 J s)^2) / (8 * (10 x 10^-15 m)^2 * (51.5 x 10^6 eV) * (1.602 x 10^-19 J/eV))

m = 1.05 x 10^-26 kg

Now, we can find the wavelength of the photon emitted in the n+1 to n transition using the formula:

ΔE = Efinal - Einitial = hc/λ

where ΔE is the energy difference between the two levels, h is Planck's constant, c is the speed of light, and λ is the wavelength of the emitted photon.

ΔE = En+1 - En = 74.2 MeV - 51.5 MeV = 22.7 MeV

Converting MeV to joules:

ΔE = 22.7 MeV x (1.602 x 10^-13 J/MeV) = 3.63 x 10^-12 J

Plugging in the values, we get:

λ = hc/ΔE

λ = (6.626 x 10^-34 J s) * (3.00 x 10^8 m/s) / (3.63 x 10^-12 J)

λ = 5.48 x 10^-17 m

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Explanation:

The purpose of cellular respiration is the to provide energy for the body of an organism. In this process, food materials are broken down by complex metabolic actions usually with the availability of oxygen. Then, energy is liberated for use by an organism and the waste is expelled.

Cellular respiration and photosynthesis are both similar. In that they are ways by which organisms obtain nutrition. The food for plant is derived by the process of photosynthesis. Also, other organisms use this food for their own nourishment.

Answer:

The bowling ball has greater kinetic energy.

Explanation:

Kinetic energy is given by:

\( K = \frac{1}{2}mv^{2} \)

Where:

m: is the mass

v: is the speed

For the bowling ball we have:

\(K = \frac{1}{2}mv^{2} = \frac{1}{2}5 kg*(6 m/s)^{2} = 90 J\)

And for the ship:

\(K = \frac{1}{2}mv^{2} = \frac{1}{2}120000 kg*(0.02 m/s)^{2} = 24 J\)

Therefore, the bowling ball has greater kinetic energy.

I hope it helps you!

Answer:

It uses x-rays. The image is produced by polarizing exciting hydrogen nuclei of water molecules in the human tissue which will produce the image.  

Answer:

It uses x-rays. The image is produced by polarizing exciting hydrogen nuclei of water molecules in the human tissue which will produce the image.

haha ctrl + v go brrrrrrrrrrrrrr

The amount of charge on an electron is a fundamental concept in physics and chemistry. In short, the charge on an electron is a fundamental unit of electric charge in physics, and is equal to -1.602 x 10^-19 coulombs.

To understand the charge on an electron, it's important to first understand the concept of electric charge. Electric charge is a property of subatomic particles that determines their ability to interact with electromagnetic fields. Electric charge can be positive or negative.

Electrons are subatomic particles that have a negative charge. The charge of an electron is considered to be the basic unit of electric charge in physics. In other words, the charge on an electron is used as the reference point for all other charges. The charge of an electron is equal to -1.602 x 10^-19 coulombs.

This value was determined through experiments and is considered to be a fundamental constant of nature. The charge of an electron is an important value in many calculations and measurements in physics and chemistry, such as in determining the behavior of atoms and molecules in chemical reactions.

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Answer:

None of the statements are correct.

Explanation:

There is no mention of potential energy in the given information, so it is not correct to say that there are 1,900 joules of potential energy in this system.

It is not correct to say that 900 joules of energy are destroyed in this system. Energy cannot be destroyed, it can only be converted from one form to another or transferred from one place to another.

It is not correct to say that 2,500 joules of work are being done by this model engine. Work is defined as the product of force and displacement, and the given information does not include any information about force or displacement.

It is not correct to say that 1,000 joules of energy leave the system. The given information only states that the thermal energy of the engine increases by 900 joules, but does not specify whether any other forms of energy leave the system.

It is correct to say that 1,500 joules of kinetic energy are produced by this model engine for every 3,400 joules of chemical energy taken in. However, it is not correct to say that this energy can be used to move an object without any further information about the object or the conditions under which the energy would be used.

The direction of the friction force F exerted by the horizontal surface on the crate will be in the left direction.

From the information given, the 85-lb force P is applied to the 200-lb crate, which is stationary before the force is applied.

mg = 200 ×  0.2248 × 9.8 = 440.608

The static friction force will be:

= 0.5 × 440.608

= 220.304N

Therefore, the static friction is greater than the force applied. Therefore, there'll be a static friction acting on the box on the left direction.

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Answer:

4

Explanation:

4-3

The work done by the toy car when it travels 2 m is 20 J.

The work done by the toy car when it travels 1 m is 10 J.

The work done by the toy car held 3.75 m above the ground is zero.

The work done by the toy car when it travels 7 m is 70 J.

The work done by the toy car when it travels 10 m is 100 J.

The work done by the toy car when it travels 2 m is calculated as follows;

W = Fd

W = (ma)d

W = (2 x 5) x 2

W = 20 J

The work done by the toy car when it travels 1 m is calculated as follows;

W = Fd

W = (ma)d

W = (2 x 5) x 1

W = 10 J

Work is said to be done when an object is displaced from its initial position. Since the car wasn't displaced, the work done is zero.

The work done by the toy car when it travels 7 m is calculated as follows;

W = Fd

W = (ma)d

W = 2(10 - 5) x 7

W = 70 J

The work done by the toy car when it travels 10 m is calculated as follows;

W = 2 x (5 - 10) x 10

W = -100 J

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80 KN/m - 180 KN/m bending moment equations would be needed to determine the elastic curve for the entire beam.

The bowing second is how much twisting that happens in a shaft. It is an estimation used to distinguish where the best measure of twisting happens. For most pillars with a consistently conveyed load (UDL), this bowing happens mid-range. Twisting second is an amount of the minutes over a specific cross-part of the bar because of Clockwise and Counter Clockwise Moments. This attempts to twist the bar in the plane of the part, and because of transmission of it over a cross-segment of the pillar, the Developed Bending pressure circulation is Linear from the impartial pivot of the bar.

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Answer:

An object that does not vibrate cannot produce sound

Explanation:

because of the weight of the person sitting on it ...also frictional force increases

Answer:

The solution absorbs the red and green wavelengths; however, the blue light is reflected and passes through, so the solution appears blue. This procedure takes place whenever an object displays visible color.

The list of elements with increasing number of valence electrons are Sr, Ca, Mg, Be.

Valence electrons are the electrons that is found at the outer shell of an atom which make the atom to form a chemical bond in which each atom involve contribute one or more valence electrons to form the bond.

Therefore, The list of elements with increasing number of valence electrons are Sr, Ca, Mg, Be.

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Alice is weightless because she is in free fall.

Free-fall occurs when an object is experiencing the force of gravity but is not experiencing any other forces, such as air resistance. Because Alice is in a spacecraft, air resistance is not a factor, so she is essentially in a vacuum.

When an object is in a vacuum, the only force acting upon it is gravity. Therefore, Alice is in free fall and is experiencing weightlessness. This is in contrast to you, who is experiencing 1g of acceleration due to the force of the engine of your spacecraft.

This force is greater than the force of gravity, so you are not in free fall, and thus you are feeling the effects of the gravitational field.

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