Using the law of conservation of energy, what is the kinetic energy at B? K.E. = 3, 6, or 4.8

Answer:

False

Explanation:

Answer:

The answer is False

Explanation:

Explanation:

u=60

t=90s

a=

v=0

v=u+at

0=60+90a

90a=-60

a=-3/2

Answer:

waking up,eat,sleep

Explanation:

notice how i didn't say math :)

The equation =c/f relates wavelength and frequency. There is an inverse relationship between wavelength and frequency.

One crucial equation connects them all: The speed of light is equal to the frequency times the wavelength of any electromagnetic wave. If we know the other measurement, we can use this connection to calculate the wavelength and frequency of the any electromagnetic wave.

The distance between the crests of two waves is known as the wavelength, which also applies to troughs. The number of vibrations that pass across a certain area in a second is the frequency, which is expressed in seconds per cycle (Hz) (Hertz). This article discusses how wavelength and frequency relate to one another.

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An object's loss in gravitational potential energy as it descends freely close to the surface of the earth is equal to its "kinetic energy."

Both in the scientific and common sense, climbing stairs as well as lifting objects count as work because they both involve exerting force against gravity. Energy undergoes a transition when work is done.

Thus, an object's loss in gravitational potential energy as it descends freely close to the surface of the earth is equal to its kinetic energy.

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The complete question is-

As an objects falls freely near earths surface the loss in gravitational potential energy of the objects is equal to its _______.

The cards are observed to move forward as the coins gel in the jar. This happens because the coin has rest inertia. Rest inertia is the resistance that an object exerts at rest. resist change and fall into the glass.

Coins have inertia. If you move the card slowly, it won't be fast enough to overcome this force. With a quick flick, the coin stays in one place and falls into the cup. A stationary object remains stationary. You could change position and fall to the ground or be inside the glass. This is because the paper changes its position when a strong force is applied or a quick pull is applied.

The law of inertia, also known as Newton's first law, states in physics that if an object is at rest or moving in a straight line with a constant velocity, it is at rest or moving in a straight line with a constant velocity. We assume that This is when a force is applied.

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A force of 40. 0 n accelerates a 5. 0-kg block at 6. 0 m/s2 along a horizontal surface. The value of the net force acting on the block will be  79N.

The combination of mass and acceleration is known as force, and it acts on the body to cause it to move. Since the block is being affected by an external force, there will be a frictional force that prevents the block from moving. The frictional force is given by and can be represented by the symbol f(k).

f(k) = external force - (ma)

f(k) = 40N - (5×6)

f(k) = 40N - 30N

Since it opposes the external force, f(k) = 10N, and since the sign is negative, f(k) = -10N.

In addition, the body is subject to a gravitational force that is equal to mg, where g is the acceleration caused by gravity.

Now, force of gravity = mg

= 5×9.8 = 49N

Now, net force acting on the block = 40N - 10N + 49N= 79N.

Your question is incomplete but most probably your full question was

A force of 40.0 N accelerates a 5.0-kg block at 6.0 m/s2 along a horizontal surface. what is the net force acting on the block

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Answer:

The elastic potential is 1/2 as much.

Explanation:

The reason I say this is because of you take a new rubber band, after stretching the first time, all the way until it doesn't snap, you stretch it again and there's not as much resistance as when it was new.

I hope this helps.

The equilibrium temperature (T_final) of bodies A, B, and C will be equal to the initial temperature of body A (T_A).

To find the equilibrium temperature when bodies A, B, and C are put in contact, we can apply the principle of thermal equilibrium, which states that when two objects are in contact and there is no heat transfer to the surroundings, they will reach a common temperature.

Let's assume the initial temperatures of bodies A, B, and C are T_A, T_B, and T_C, respectively. Given the information provided:

Temperature of body B = 2 * Temperature of body A

Temperature of body C = 2 * Temperature of body A

Since all three bodies are in contact and made of the same material, they will eventually reach thermal equilibrium. This means that the final temperature (T_final) of the system will be the same for all three bodies.

To determine the equilibrium temperature, we can set up an equation based on the principle of thermal equilibrium:

(mass of A * specific heat of the material * change in temperature for A) + (mass of B * specific heat of the material * change in temperature for B) + (mass of C * specific heat of the material * change in temperature for C) = 0

Since the masses of A, B, and C are equal (ma = mb = mc), and they are made of the same material, we can simplify the equation to:

(ma * specific heat * (T_final - T_A)) + (mb * specific heat * (T_final - T_B)) + (mc * specific heat * (T_final - T_C)) = 0

Substituting the given information, we have:

(ma * specific heat * (T_final - T_A)) + (mb * specific heat * (T_final - 2 * T_A)) + (mc * specific heat * (T_final - 0.5 * T_A)) = 0

Simplifying further, we have:

ma * (T_final - T_A) + mb * (T_final - 2 * T_A) + mc * (T_final - 0.5 * T_A) = 0

Expanding and rearranging the equation:

T_final * (ma + mb + mc) - (ma + 2 * mb + 0.5 * mc) * T_A = 0

Since ma = mb = mc (equal masses), we have:

T_final * (3 * ma) - (3 * ma) * T_A = 0

Dividing both sides by 3 * ma:

T_final - T_A = 0

Therefore, the equilibrium temperature (T_final) of bodies A, B, and C will be equal to the initial temperature of body A (T_A).

In conclusion, the equilibrium temperature of the system will be the same as the initial temperature of body A.

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Answer:

B

Explanation:

Answer:

The term for the region where the north and south poles of atoms in a material line up is a "domain." In magnetic materials, the north and south poles of atoms are called "magnetic dipoles." When the magnetic dipoles in a material line up, they create a region of magnetic field called a "domain." This alignment of magnetic dipoles can produce strong magnetic properties in the material, which is why it is often used in applications such as magnets and motors.

Answer:

A. Good conductor of heat

Explanation:

The group 10 elements are a group of chemical elements as part of VIII elements and they include nickel, platinum, palladium etc. These group of chemical elements are all d-block transition metals, highly ductile and lustrous and are mostly white to light grey in color.

The statement which most likely describes a Group 10 element is that they are good conductor of heat because they have some of the chemical and physical properties of metals.

The temperature change produced by a given amount of heat depends on the nature of the substance and its mass because different substances have different specific heat capacities.

The specific heat capacity of a substance is the amount of heat energy required to raise the temperature of one gram of the substance by one degree Celsius.

Different substances have different specific heat capacities due to differences in their molecular structures and the way their atoms and molecules interact with each other. F

or example, water has a higher specific heat capacity than most other common substances, which means it takes more heat energy to raise the temperature of water than it does to raise the temperature of other substances by the same amount.

The mass of a substance also affects the temperature change produced by a given amount of heat. The more mass a substance has, the more heat energy it can absorb before its temperature changes significantly.

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Answer:

The answer should be True, but it's False on Edge 2021

Explanation:

이것이 도움이 되었기를 바랍니다.

(✿◡‿◡)

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-Jiyen~

The magnitude of the electric field in terms of q and the distance r from the common center of the two shells for r is given by;E = kq(r-R1)/(r^2R2).

When two metal shells of different radii, R1 and R2 (R2>R1) have equal and opposite charges of magnitude q, and their common center is at a distance r from the common center of the two shells, the electric field at a point outside both shells (r>R2) is given by the expression;E = kq(r-R1)/(r^2R2)where;q= charge on the metal shells, k = 1/4πε0;ε0 = permittivity of free space, R1 and R2 are the radii of the shells respectively.Magnitude of electric field; E = kq(r-R1)/(r^2R2) Therefore, the magnitude of the electric field in terms of q and the distance r from the common center of the two shells for r is given by;E = kq(r-R1)/(r^2R2)

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Jupiter's volume is more than ten times as large as Saturn's volume. This statement is true. Jupiter is the largest planet in our solar system with a volume of about 1,431,281,810,739 km³ while Saturn is the second-largest planet with a volume of about 827,129,915,150 km³.

Jupiter is approximately 11 times larger than Saturn. The two planets belong to the gas giant category, and they share many similarities such as having a large number of moons. Jupiter is famous for its Great Red Spot and powerful magnetic field, while Saturn is well-known for its stunning ring system. Both planets have been the focus of scientific research and exploration, and they continue to fascinate scientists and stargazers alike. In conclusion, Jupiter's volume is more than ten times as large as Saturn's volume.

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Solution,

We know that,

\(f = ma \\ \frac{f}{m} = a \\ \frac{1000}{100} = a \\ 10 = a\)

Therefore,

Acceleration produced will be 10m/s².

Answer:

There are three laws of newton

The direction of wind around a low pressure in the northern hemisphere is anti-clockwise. Option  b. anti-clockwise.

This is known as cyclonic flow, where the air flows towards the center of the low pressure and is deflected to the left due to the Coriolis effect. This creates a counterclockwise circulation around the low pressure center. The wind direction is not perpendicular or parallel to isobars, but rather follows a curved path due to the Coriolis effect.

The direction of wind around a low pressure system in the Northern Hemisphere is: b. anti-clockwise This is due to the Coriolis effect, which causes moving objects, such as wind, to be deflected to the right in the Northern Hemisphere. This results in a anti-clockwise flow around areas of low pressure. Choice  b. anti-clockwise is thus the correct choice.

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The aim of the experimental model is to test the effect of humidity (changes in weather) on evaporation (rates) from lakes

The control variables in an experiment are the variables that the experimenter intends to keep constant always so as to limit their effect on the measurements of the relationship between the dependent and the independent variable

Therefore in order to have a proper measurement of the effect of humidity on evaporation rate, other variables such as temperature, and the volume of the water in the experiment investigations which affect evaporation rate by the provision of heat, (temperature) and their heat capacity, (the volume and therefore, mass of water) should be controlled

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Answer: B: Volume of water and temperature

Explanation:

Just took the quiz

Among the four options listed here, time has the least impact on the potential energy or kinetic energy of an object. Thus, option 3 is the correct answer.

Potential energy is the energy an object has due to its position or state, and is dependent on the height of the object from the ground and its mass. Kinetic energy is the energy an object has due to its motion, and is dependent on its mass and speed.

While time is a factor that can affect an object's potential and kinetic energy, it is not directly related to these forms of energy. Time can affect the amount of potential energy an object has by allowing it to move to a higher or lower position, but it does not directly affect the energy itself. Similarly, time can affect the kinetic energy of an object by allowing it to move for a longer or shorter period, but it does not directly affect the energy itself.

Therefore, time has the least impact on the potential energy or kinetic energy of an object compared to mass, speed, and height from the ground.

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Answer:

6m/s

Explanation:

Centripetal force is expressed according to the formula;

F = mv²/r

m is the mass of the body

v s the speed of the cart

r is the radius

Given

M = 2kg

r = 3m

Force F = 24N

Substitute into the formula and get v

24 = 2v²/3

24×3 = 2v²

72 = 2v²

v² = 72/2

v² = 36

v =√36

v = 6m/s

Hence the speed of the cart is 6m/s

Answer:

The lightbulbs were exploding after several mins of use

Explanation:

Answer:

the lightbulbs were exploding after several minutes of use

Explanation:

a p e x :))

Answer:

30 and 60 degrees

Explanation:

A 1.2 X 10⁻³ kg ball moving 4.0 collides head on and inelastically with a second 1.2 X 10⁻³ kg ball initially at rest. After colliding, the balls move together at the speed of 4.0 m/s.

To solve this problem, we can apply the principles of conservation of momentum and conservation of kinetic energy.

Given:

Mass of the first ball, m₁ = 1.2 x 10⁻³ kg

Mass of the second ball, m₂ = 1.2 x 10⁻³ kg

Initial velocity of the first ball, v₁ = 4.0 m/s

Initial velocity of the second ball, v₂ = 0 m/s

Since the collision is inelastic, the two balls stick together after the collision, moving as one object. Let's denote the final velocity of the combined balls as \(v_f_i_n_a_l\).

1) Conservation of momentum:

The total momentum before the collision is equal to the total momentum after the collision. Mathematically, it can be expressed as:

(m₁ * v₁) + (m₂ * v₂) = (m₁ + m₂) * \(v_f_i_n_a_l\)

Substituting the given values:

(1.2 x 10⁻³ kg * 4.0 m/s) + (1.2 x 10⁻³ kg * 0 m/s) = (1.2 x 10⁻³ kg + 1.2 x 10⁻³ kg) * \(v_f_i_n_a_l\)

(4.8 x 10⁻³ kg*m/s) = (2.4 x 10⁻³ kg) *\(\\v_f_i_n_a_l\)

2) Conservation of kinetic energy:

The total kinetic energy before the collision is equal to the total kinetic energy after the collision. Mathematically, it can be expressed as:

(1/2) * m₁ * v₁² + (1/2) * m₂ * v₂² = (1/2) * (m₁ + m₂) * \(v^2_f_i_n_a_l\)

Substituting the given values:

(1/2) * (1.2 x 10⁻³ kg) * (4.0 m/s)² + (1/2) * (1.2 x 10⁻³ kg) * (0 m/s)² = (1/2) * (1.2 x 10⁻³ kg + 1.2 x 10⁻³ kg) * \(v^2 _f_i_n_a_l\)

(4.8 x 10⁻⁶ kg*m²/s²) = (2.4 x 10⁻³ kg) * \(v^2_f_i_n_a_l\)

Dividing the first equation by the second equation, we get:

\(v_f_i_n_a_l/v^2_f_i_n_a_l\) = (4.8 x 10⁻³ kg m/s) / (4.8 x 10⁻⁶ kg m²/s²)

\(v_f_i_n_a_l=|v_f_i_n_a_l|\)

Since velocity is a scalar quantity, the final velocity of the combined balls must be a positive value.

Therefore, the final velocity of the combined balls is equal to the magnitude of the final velocity. In this case, the final velocity is positive and has the same magnitude as the initial velocity:

\(v_f_i_n_a_l=|v_f_i_n_a_l|\) = 4.0 m/s.

Hence, after the collision, the two balls move together at a speed of 4.0 m/s.

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Answer:

a - temperature

b sun ( how things work science)

Answer:

(A)

Explanation:

because they are asking at temperature does water boil they can do experaments to find or they can use science

Answer: Inelastic: Elastic= 1:2

Explanation: