melting wax
evaporating gasoline
freezing water
These changes are all examples of
A) nuclear changes.
B) physical changes.
C) chemical changes.
D) energy consumption.

A sand castle that was changed by the ocean waves would be slowly taken away from by the waves and would just become a smooth mound of sand. If Dylan stomped on it then it would still have all of the same sand as before but in a different shape. It would also become a mound of sand but it would have all the same sand as before.

(I don't know if I was supposed to talk about fancy physics stuff so I just gave a basic explanation. I don't know if my answer is really right or not... hope it helped though :))

Answer:

10 J

Explanation:

Pulmonary The main artery of the human circulatory system is called the aorta. It comes directly off of the heart, carrying oxygenated blood to other arteries that carry it to… the body's cells. About the thickness of your thumb, it is also the largest artery.

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the answer is temperature

To check impulse you will need more information you will require more data as it was diverse with time. In this question, there are two balls with various mass and speed, along these lines they have diverse force. I will expect you are getting some information about the momentum.

The momentum of ball 1 should be:

momentum 1 = mass₁ x velocity₁

momentum 1 = 2kg x 10m/s = 20kg m/s

The momentum of ball 2 should be:

momentum 2= mass₂ x velocity₂

momentum 2= 1.5kg x 20 m/s = 30kg m/s

The answer would be "1.5kg ball because it was travelling faster".

Answer:

the answer is d

Explanation:

Answer:

Below

Explanation:

Electrical conductivity (I believe)

Answer:

It cause the change in the direction of the motion at every instant of time

Explanation:

When an object is revolving around a fixed point with uniform speed then in that case the acceleration of the object tangential to the path must be zero.

which mean the component of acceleration along the speed of the object at all instant of time will zero or not present because it's speed must remains the same

now since the direction of motion is continuously changing here so we can say that the force must acting here in such a way that will cause the change in the direction of the object

So this force must be perpendicular to the velocity at all instant so that the magnitude of velocity will remain the same while the direction of the velocity will continuously changing

So centripetal force will always act along the center of the path of the object

Evidence supporting the theory of plate tectonics includes B) sea-floor spreading, D) identical rock formations on separate continents, E) matching fossils across oceans, and F) glacial evidence in tropical areas.

To support the theory of plate tectonics, one must look for evidence that indicates movement of the Earth's plates and their historical configurations. The correct options that show evidence supporting this theory are:

Considering that, the ocean can forcefully drive the boat's built-in part off. Many people would support it to give the vote momentum. To be utilized for boats or boards, that is the main reason new dead anchors are located close to the ocean in the first place.

Our understanding of the sea floor and just how sea floor surveys are carried out, especially with reference to open water navigation, have been significantly altered of the introduction of deep ocean, multibeam mapping devices as Sea Beam to the oceanographic community.

With the real ability to cover the whole in every with deep water resolution of 100-200 m, these systems offer a more than one hundred-fold increase in survey resolution. As a result, they have not only put a lot of stress on shipboard navigation, but they have also directly made it possible to navigate in previously surveyed areas using very accurate terrain-following techniques.

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Distance can be equal to displacement ... if the motion is all in a straight line ... but distance can never be greater than displacement.

Yes, it is possible that the distance can be equal to the displacement. a further explanation is given below.

Thus the above answer is right.

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The object will be moving at approximately 25.04 m/s when it strikes the ground.

How to determine the speed at which an object will be moving

To determine the speed at which an object will be moving when it strikes the ground after being dropped from a height,  use the equations of motion under constant acceleration.

The acceleration is due to gravity and can be approximated as 9.8 m/s².

The equation that relates the final velocity (v) of the object, the initial velocity (u), the acceleration (a), and the displacement (s) is:

v² = u² + 2as

Given:

Initial velocity (u) is 0 m/s (as the object is dropped).

Acceleration (a) is -9.8 m/s² (negative because it acts in the opposite direction to the object's motion).

Displacement (s) is the height of the building, which is 32 m.

Plug in the values into the equation, we have:

v² = 0² + 2 * (-9.8 m/s²) * 32 m

v² = -2 * 9.8 m/s² * 32 m

v² = -627.2 m²/s²

Take the square root of both sides to solve for v:

v = √(-627.2 m²/s²)

Since we are interested in the magnitude of the velocity, the negative sign is ignored.

v ≈ 25.04 m/s

Therefore, the object will be moving at approximately 25.04 m/s when it strikes the ground.

A chemical change results in a new element being formed, and a physical change results in a new compound being formed.

Answer:

Waves and glaciers weather and erode the Earth’s surface.

Explanation:

Science

Glaciers are important agents of change on the Earth's surface. They can shape the landscape, provide water resources, and impact global climate patterns.

Glaciers are large masses of ice that form over many years from compacted snow in areas where snowfall exceeds snowmelt. As glaciers move, they can have significant impacts on the Earth's surface, including:

(1)Erosion: Glaciers can erode and shape the land as they move. As they flow downhill, they can scrape and grind rocks and soil, carving out valleys and creating features such as cirques, aretes, and u-shaped valleys.

(2)Deposition: As glaciers melt, they deposit sediment they have carried, creating features such as moraines, drumlins, and eskers. These deposits can significantly alter the landscape and create unique features.

(3)Water supply: Glaciers can serve as a source of freshwater for ecosystems and human populations. As they melt, they can provide water for rivers and streams, which can support a variety of plants and animals.

(4)Sea level: Melting glaciers can contribute to rising sea levels, which can have significant impacts on coastal communities and ecosystems.

(5)Climate: Glaciers play a role in regulating the Earth's climate by reflecting sunlight back into space. As glaciers melt, they can reduce this reflective effect, leading to warming temperatures and further melting of glaciers.

Hence, If glaciers melt they have significant impacts like Erosion, Deposition, Water supply, Sea level, and Climate on our earth's surface.

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Answer:

worry

Explanation:

Joshua is a young boy who has a crush on a girl. Now as Joshua is about to speak with the girl, he is bit nervous and anxious. So he is worried as he is not quite sure about how the conversation will go with her. This makes him feel worried. He is expecting to be nice with her as she is his crush and wishes everything to go well. But this makes his heart beat to pulse faster so he is worried about the conversation with her.

Explanation:

When an object is placed inside water, an upward force is exerted by water called as buoyant force.

An object will float or sink, this completely depends on the density of object. Also, if the magnitude of gravitational force is more as compared to the buoyant force the object will sink otherwise float.

If the density of substance is more than water, it will sink and if the density of substance is less than water it will float.

Answer:

The rate of a reaction is the number of moles of reactants converted or products formed per unit time.

Reaction rates can be increased by:

I. Increasing the concentration of solid and liquid reactants.

II. Increasing the pressure of gaseous reactants.

III. Increasing the surface area (area of contact) of the reactants.

IV. Increasing the temperature of the reaction mixture.

V. Increasing the intensity of light for light-sensitive reactions.

VI. Adding a suitable reaction catalyst. This will help lower the activation energy of the reaction, making it to occur faster.

We can solve for the resultant x and y components by using the sine and cosine functions.

resultant x = 2.5 cos 35 + 5.2 cos 22 = 6.87 km

resultant y = 2.5 sin 35 + 5.2 sin 22 = 3.38 km

The resultant displacement is calculated using hypotenuse equation:

displacement = sqrt (6.87^2 + 3.38^2)

displacement = 7.66 km

The resultant angle is:

θ = tan^-1 (3.38 / 6.87)

θ = 26.20°

Therefore the magnitude and direction is:

7.66 km, 26.20° to the ground