two spherical objects have a combined mass of 150 kg. the gravitational attraction between them is 8.00 * 10-6 n when their centers are 20 cm apart. what is the mass of each?

Answer:

You may tip the car over or crash.

Explanation:

Going really fast at high speeds and turn a corner might make the car crash into an object or fall over.

Answer:

From least to greatest: Neon, Sodium, Silicon, Iron, Uranium

Explanation:

Here are all the atomic numbers for each one:

Iron = 26

Sodium = 11

Uranium = 92

Neon = 10

Silicon = 14

Hope this helps! :D

Answer: The correct statement is D (the sodium azide breaks down into sodium and nitrogen gas).

Explanation:

A chemical change is an irreversible chemical reaction in which new substances are usually formed. It is also defined as chemical decomposition of a substance leading formation of two or more other substances. A typical example is in the break down or decomposition of sodium azide into sodium metal and nitrogen gas. This is seen in the chemical balanced equation below:

2 NaN3 --> 2 Na + 3 N2

Sodium azide ( also called Sodium trinitride) is a chemical compound that is in built into automobile air bags which upon collision is being triggered to decompose. This leads to the generation of sodium and nitrogen gas that fills the air bag. This aid ls in reducing the impact of the collision and absorbs the forward-moving energy of the occupant.

Answer:

The answer is D Im doing the Exam noe

Explanation:

Hope this help :)

Red Riot out

If a balloon is cooled, its volume will decrease. This is because gases behave differently than solids and liquids when subjected to temperature changes.

In general, as the temperature of a gas decreases, the particles in the gas slow down and move closer together. This results in a decrease in the volume of the gas, since the same number of particles are now occupying a smaller space.

In the case of a balloon, the gas inside it will behave in the same way. As the gas cools, the particles will move closer together and the pressure inside the balloon will decrease, causing the balloon to shrink. This is why helium balloons, for example, tend to deflate in cold temperatures.

It is important to note that the decrease in volume will depend on the initial temperature and pressure of the gas, as well as the temperature to which it is cooled. In addition, if the cooling process is severe enough, the gas may even condense into a liquid or solid, which will result in a much greater decrease in volume.

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Answer:

20100s

Explanation:

For a long time, constructing new power stations was the primary solution to increased energy demands. However, this is no longer seen as a feasible solution for several reasons. First and foremost, new power stations are expensive to build and maintain. They necessitate a significant financial investment.

Additionally, new power stations can take years to construct. This is a long period to wait for additional energy capacity, particularly if demand is already high. In comparison, renewable energy sources such as wind and solar power have a much shorter installation period.

Finally, constructing new power stations to meet increased energy demand is frequently reactive rather than proactive. It only addresses the present energy demand rather than considering potential future needs. As a result, it is a short-sighted solution that is unlikely to be sustainable in the long run.

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Ocean drilling cores have been used to confirm the age of the oldest oceanic crust, which was formed about missing years ago.

An electric charge, an electric current, and magnetic materials are all affected magnetically by a magnetic field, which is a vector field. A force perpendicular to the magnetic field and its own velocity acts on a moving charge in a magnetic field.

Because it shields the planet from dangerous radiations such solar winds, which have high radiation levels, the magnetic field of the Earth is crucial. The sun's solar energy includes solar winds.

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Answer: Thus the velocity is 14meters per second

Explanation:

Answer:

showing the differences between states of matter.

Answer:

D

Explanation:

the kinetic theory of matter states that matter is made up of molecules that are in continuous motion.this in turn talks about the different states of matter

Answer:

amplitude, wavelength, frequency, and speed.

Explanation:

No matter whether you are talking about vibrations or waves, all of them can be characterized by the following four characteristics

When the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.

When the area of each plate of a capacitor is doubled while keeping the total charge on each plate and the separation between the plates constant, the following changes occur:

1. Electric Field: The electric field between the plates decreases. The electric field (E) between the plates of a capacitor is inversely proportional to the area (A) of the plates. As the area is doubled, the electric field is halved, assuming the other factors remain constant.

2. Potential Difference: The potential difference (V) across the plates remains the same. The potential difference across the plates of a capacitor depends on the charge (Q) and the capacitance (C), which is determined by the geometric and material properties of the capacitor. Since the total charge and separation between the plates are held constant, the potential difference remains unchanged.

3. Stored Energy: The stored energy in the capacitor increases four times. The energy stored in a capacitor (U) is directly proportional to the area of the plates (A). When the area is doubled, the stored energy is quadrupled (increases by a factor of four).

Therefore, when the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.

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The tension in the rope is equal to the weight of the box when lowering it at a constant speed.

When you lower a box attached to a rope straight down at a constant speed, the tension in the rope must equal the weight of the box. This is due to the equilibrium of forces acting on the box.

The weight of the box, which is the force exerted by gravity, pulls the box downward. To counteract this downward force and maintain a constant speed, the tension in the rope must match the weight of the box.

In this scenario, the tension in the rope is the force that is transmitted from your hand to the box through the rope. When the box is at a constant speed, it means that the net force acting on the box is zero.

The tension in the rope must balance out the weight of the box to achieve this equilibrium. If the tension is less than the weight of the box, the box would accelerate downward. Conversely, if the tension is greater than the weight, the box would accelerate upward.

By adjusting the tension in the rope to match the weight of the box, you can lower it at a constant speed without any acceleration. This principle is important to ensure stability and control when manipulating objects using ropes or cables.

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Atoms have no electric charge because they have an equal number of electrons and protons.

Explanation:

So from this, we can conclude that atoms have no electric charge because they have an equal number of electrons and protons. Option C is correct.

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Answer:

every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Explanation:

Answer: Newton's law of gravitation, states that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them

Explanation: More of a simple answer is a law stating that any two masses attract each other with a force equal to a constant (called the gravitational constant) multiplied by the product of the two masses and divided by the square of the distance between them.

Answer:

tips to get you started

Make a menu. ...

Plan your meals around foods that are on sale. ...

Plan at least one meatless meal a week. ...

Check your pantry, refrigerator and freezer. ...

Enjoy grains more often. ...

Avoid recipes that need a special ingredient. ...

Look for seasonal recipes. ...

Plan to use leftovers.

Explanation:

sana po makatulong

3. An electronics company is manufacturing circuit boards.They want to use minimum wire to connect the pins in a way that there are exactly two connected components of any size.

The wire needed to connect each pair of pins is given by the distance between them. How should they arrange the pins to minimize the total length of wire needed?

To minimize the total length of wire needed, the electronics company can use a specific arrangement of pins known as a "Minimum Spanning Tree" (MST). A Minimum Spanning Tree is a connected subgraph of the original circuit board graph that includes all the pins while minimizing the total length of the edges (wires) used.

The company can follow these steps to determine the optimal pin arrangement:

1. Create a graph representation of the circuit board, where each pin is represented by a vertex and the distance between two pins is represented by the weight of the edge connecting them.2. Apply a suitable algorithm for finding the Minimum Spanning Tree of the graph, such as Kruskal's algorithm or Prim's algorithm.

3. The resulting Minimum Spanning Tree will provide the arrangement of pins that minimizes the total length of wire needed while ensuring that there are exactly two connected components of any size.

By using this approach, the electronics company can achieve an efficient and optimized wiring configuration for their circuit boards.

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Answer:2n

Explanation:10/5=2

Answer:

He is suffering from hypermetropia.

Explanation:

There are some defects of vision.

Longsightedness of hypermetropia : It is the defect of vision in which the person is not able to see the nearby objects clearly but can see the far off objects clearly. This is due to the elongation of size of eye ball. It is cured by using convex lens of suitable focal length.

Nearsightedness or Myopia : It is the defect of vision in which a person is not able to see the far off objects clearly but can see the nearby objects clearly. It is due to the contraction in the size of eye ball. It is cured by using concave lens of suitable focal length.

So, Hideki is suffering from hypermetropia. So, he should use the convex lens of suitable focal length.  

The labels A and B in the triangle's supplied picture stand for the transitions from a gas to a liquid and a gas to a solid, respectively.

Arrow A, which descends one side of the triangle from the top labelled "gas," symbolises condensation, the transformation of a gas into a liquid.

When a gas loses energy and changes into a liquid state, condensation takes place.

The transition from a gas to a solid is shown by arrow B, which also descends from the top and is labelled "gas" but is located on a different side of the triangle. Deposition is the term for this alteration. When a gas loses energy, it decomposes into a solid without changing to a liquid state, which is known as deposition.

Arrow C travels horizontally from the point designated "liquid" on the bottom of the triangle to the place designated "solid." This illustrates freezing, the transition from a liquid to a solid state. When a liquid loses energy, it freezes and changes from a liquid state to a solid state.

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The theoretical angle required to launch the puck so that it goes up the same distance in the y direction as it travels in the x direction is 45 degrees.

To understand why the theoretical angle is 45 degrees, we can consider the motion of the puck on the table. Since the table is a square, the distance traveled in the x direction is equal to the distance traveled in the y direction when the puck reaches the right corner.

When an object is launched at an angle, its horizontal and vertical motions can be treated independently. In this case, the puck's motion in the x direction is determined by its initial velocity and the time it takes to reach the right corner. Similarly, the motion in the y direction is determined by the initial velocity and the time it takes to reach the same height.

For the puck to travel the same distance in the y direction as in the x direction, we need the vertical displacement to be equal to the horizontal displacement. This can be achieved when the angle of launch is 45 degrees.

At this angle, the horizontal and vertical components of the initial velocity are equal. As a result, the puck will travel the same distance in the y direction as it does in the x direction, reaching the right corner of the table.

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Answer:

"The process in which iron (Fe) is reacting to water (H2O) and oxygen (O) to form iron oxide (Fe2O3) is a perfect demonstration of a chemical change."

________________________________________________________

"A chemical change occurs when one chemical substance is transformed into one or more different substances, for instance how iron becomes rust after a chemical change. In this situation, there is a chemical change occurring, transforming a chemical substance (iron) into iron oxide due to the reaction when combined with that of water and oxygen. Hence, the best demonstration of chemical change out of the listed situations above would be Option D."

Hope this helps! If so, please lmk! Thanks and good luck!

Chemical transitions, commonly referred to as chemical reactions, are processes that change one or more chemicals into one or more brand-new, distinct substances. The correct option is D.

A chemical change is the transformation of one substance into another, the emergence of new compounds with distinct properties, or any combination of these. It happens when two compounds unite to create a new substance (synthesis) or when two substances break down to create new substances.

Iron, oxygen, and water react to form rust as a result. Iron oxide is also referred to as rust. The chemical reaction is shown graphically as 4Fe (s), 3O₂ (g) → 2Fe₂O₃ + H₂O (l).

Thus the correct option is D.

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Our atmosphere is transparent to solar radiation, but it traps the energy that causes the greenhouse effect because the solar energy absorbed by Earth is reradiated as longer-wavelength radiation.

The atmosphere is transparent to incoming solar radiation, which is mostly visible light and short-wavelength radiation. However, the Earth absorbs some of this solar radiation and heats up.

The Earth then radiates this heat energy back out to space as longer-wavelength radiation, mostly in the form of infrared radiation. The greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, are able to absorb this longer-wavelength radiation and trap some of the heat energy in the atmosphere, causing the greenhouse effect.

Hence, this is why the atmosphere is transparent to solar radiation but traps the energy that causes the greenhouse effect.

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The leading explanation for the existence of spiral arms in galaxies is the **density wave theory**.

According to the density wave theory, spiral arms are not fixed structures but rather dynamic patterns that result from density waves propagating through the galactic disk. These waves cause regions of higher density and compression, leading to the formation of the spiral arms.

The theory suggests that as gas and stars move through the galactic disk, they are subjected to gravitational perturbations from neighboring objects or asymmetries in the gravitational field. These perturbations create wave-like patterns that move through the disk, causing regions of compression and enhanced star formation, which manifest as the bright arms we observe.

The density wave theory explains the persistence and relatively stable appearance of spiral arms over long periods. It also accounts for the observed differential rotation of stars within a galaxy, with stars moving faster or slower as they pass through the spiral arms.

While the density wave theory is the leading explanation, other factors such as interactions between galaxies and the effects of magnetic fields can also play a role in shaping and maintaining spiral arms. Ongoing research continues to refine our understanding of the mechanisms behind the formation and dynamics of these beautiful structures in galaxies.

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Answer:

yea its D  .

Explanation:

Neither the wall or the elephant are moving when Bob pulls on them because the force applied by Bob on them is equal to the reaction they exerted on Bob.

Newton's third law of motion states that for every action, there is an equal and opposite reaction.

That is action force and reaction force are equal in magnitude but opposite in direction.

When Bob apply 500 N force to pull the wall or the elephant, the force in which the wall pull back at Bob is equal in magnitude to the 500 N force applied by Bob but in opposite direction.

Since the forward force (action force ) is equal to the backward force (reaction force), the wall or the elephant will remain stationary because of net zero force acting on each of them.

For wall or the elephant to move in the direction of the force applied by Bod, the force applied by Bob must be greater than the reaction exerted by either the wall or the elephant.

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Answer:

Heyo!

Explanation:

Science, they would claim, can describe elements of the natural world but not explain them. For many scientists, this is a distinction without a difference. The Nobel Prize-winning physicist Steven Weinberg, an eloquent advocate for science's place in the realm of ideas, takes this distinction at face value - in order to demonstrate that science does indeed explain something.

Hope This Helped

Capacitance is a property of a capacitor and represents its ability to store electrical charge. It is denoted by the symbol C and is measured in farads (F).

The capacitance of a capacitor is determined by its physical characteristics, such as the size, shape, and materials used. It can be calculated using the equation:

C = Q / V

C =  capacitance in farads,

Q = charge stored in the capacitor in coulombs,

V = voltage across the capacitor in volts.

In practical terms, capacitance describes the amount of charge that a capacitor can store per unit voltage. A capacitor with a higher capacitance can store more charge for a given voltage, while a capacitor with a lower capacitance can store less charge.

The farad (F) is a relatively large unit of capacitance, and in many cases, capacitors are commonly measured in smaller units such as microfarads (μF), nanofarads (nF), or picofarads (pF), which are equivalent to 10⁻⁶ F, 10⁻⁹ F, and 10⁻¹² F, respectively.

Thus, a capacitor's capacitance reflects its capacity to hold an electrical charge. It is measured in farads (F) and has the sign C.

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Complete question:

What is the capacitance?

Express your answer in farads.

Yes, the reflection and refraction of light are color-dependent.

This is because the extent of bending or refraction, and reflection of light varies with the wavelength of light, which is related to the color of light. Shorter wavelengths bend more than longer wavelengths during refraction. Also, the index of refraction, which determines the extent of bending, varies with the color of the light. How to tell if reflection and refraction of light are color-dependent?

The best way to determine whether the reflection and refraction of light are color-dependent is to observe light passing through different materials or at different angles. Some colors may appear brighter or dimmer when reflected or refracted depending on the angle of incidence and the properties of the material. Light of different colors refracts at different angles, which is why a prism separates white light into its component colors. The amount of refraction of different colors of light is not the same, which leads to color dispersion.

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