Consider a solid sphere with volume charge density rho spread out uniformly across its interior. what is the electric field e inside the sphere?

Answer:

Balloons can be filled with air.

Air has mass.

Explanation:

Matter is anything that has mass and can occupy space.

Mass is the quantity of matter within a substance.  Notably, there are three states of matter which are solid, liquid and gas.

So, air is a matter because it has mass and it can be used to fill balloons.

Answer:

Balloons can be filled with air.

Air has mass.

Answer:

Rectilinear Propagation

Explanation:

In the rectilinear propagation, light is described as a ray that travels in a straight path.

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An example of the macroscale level when studying climate would be the global atmospheric circulation patterns, such as the Hadley cells and the jet stream.

When studying climate, the macroscale level refers to larger atmospheric processes and patterns that cover a large geographic area. Examples include global atmospheric circulation patterns, which have a significant impact on weather and climate around the world. The Hadley cells and the jet stream are examples of macroscale features that affect weather patterns and climate variability on a global scale.

Understanding the macroscale processes of climate is important for predicting weather patterns and climate change on a global scale. By studying the larger atmospheric processes, we can better understand how climate is changing and how it will impact our planet in the future.

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Answer:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

Explanation:

In the circulatory system, the blood carries the carbon dioxide to the right atrium of the heart through superior vena cava, then it move to right ventricle through tricuspid valve. The blood move to lungs following pulmonary artery and from lungs blood travels to the left atrium. From left atrium blood moves to the rest of the body through aorta and carries oxygen and nutrients to the whole body cells through.

Hence, the correct order is as follows:

blood picks up waste products such as carbon dioxide

returns to right atrium

moves to right ventricle and to lungs

blood travels from the lungs to the left atrium

carries oxygen and nutrients to the body cells

a. The third sphere must be placed between A and B, closer to A.

b.  the third sphere must be placed at 175 cm from the first sphere.

Since

Using Newton's law of universal gravitation, the net force on the first sphere on the third sphere is F = mAmC/x² where x = distance between sphere C and A

Also, the Force of attraction between there second sphere and the third sphere is F' = mBmC/(R - x)² where R = distance between mA and mB and x = distance between mA and mC.

Since the net force must be zero, then

F = F'

mAmC/x² = mBmC/(R - x)²

So, (R - x)²/x² = mB/mC/mAmC

(R - x)²/x² = mB/mA

Substituting the values of mA and mB into the equation, we have

(R - x)²/x² = 7/2

(R - x)²/x² = 3.5

(R - x)/x = √3.5

(R - x)/x = 1.87

R - x = 1.87x

R = x + 1.87x

R = 2.87x

x = R/2.87

x = 0.35R

Since x = 0.35R, the third sphere must be placed between A and B, closer to A.

Since the position of the third sphere is

So, x = 0.35 × 500 cm

x = 175 cm

So, the third sphere must be placed at 175 cm from the first sphere.

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The dimension of the cylinder will be r = 8.92 cm and h = 17.86 cm.

What is dimensions?

An item, region, or space's dimensions are its size or distance from another point in space. The metric of anything's length, width, and height can be put more simply.

Length and Breadth are  a common way to convey dimensions. 

Main body:

Volume of cylinder, \(v = \pi r^{2}h\)

Surface area = \(2\pi r^{2} + 2\pi rh\)

given surface area = \(1500 cm^{2}\)

\(h=(750/\pi r)-r ---(1)\)

V = \(\pi r^{2}\left \{ {(750/\pi r)-h\)

V = 750-3\(\pi r^{2}\)

put V' = 0

0 = 750-3\(\pi r^{2}\)

r≈ 8.92 cm

By substituting the value of r in eq (1)

we get h = 17.86 cm

therefore, the dimension of cylinder are r = 8.92 cm and h = 17.86 cm

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Answer:

The current would drop to half its previous value.

The process that involves lightening the hair and then recoloring to the desired color result is called the double-process.

Double-process is a two-step hair coloring process that involves lightening the hair to a pale blonde or platinum shade, then applying the desired color. This process is often used when the desired color is lighter than the natural hair color or when a vibrant color is desired.

The first step of the double-process involves applying a lightening agent, such as bleach or a high-lift color, to the hair. This is followed by a toner or a semi-permanent color to achieve the desired lightness. The second step involves applying the desired permanent color to the hair.

Double-process coloring can be damaging to the hair, so it's important to take proper precautions to minimize damage, such as using a deep conditioning treatment before and after the process, and spacing out appointments to give the hair time to recover.

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Answer: solute: sugar, coffee powder, salt, cocoa powder, liquid detergent, monosodium glutamate (vetsin).

solvent: cow's milk, water, fruit extract

Explanation:

A solution is a mixture that is made up of two or more substances including solute and solvent.

The solute is one which can be dissolved in a liquid part that is solvent. The solute can be liquid or solid. Solutes are sugar, salt, coffee powder, cocoa powder, liquid detergent, monosodium glutamate.

The solvent is one which dissolves in it solute particles or molecules. Solvent are cow's milk, water, and fruit extract.

The speed of the  Toyota Corolla would have  been 143.9 mph.

The acceleration of the F-15 can be calculated as follows:

Acceleration = Velocity Change / Time = (Take-off Speed) / Time

where;

Take-off Speed = √(2dg /t²)

Take-off Speed = √(2 x  (270 ft)  x 32.2 ft/s² / (2 s)²)

T  = √(17496) = 131.6 ft/s

Acceleration = Velocity Change / Time

= (131.6 ft/s) / (2 s) = 65.8 ft/s²

We can use the same acceleration to launch the Toyota Corolla, and calculate its final velocity:

Final Velocity = Initial Velocity + Acceleration x Time

where;

Final Velocity = 0 + (65.8 ft/s²) * (2 s) = 131.6 ft/s

Finally, we can convert the velocity from feet per second to miles per hour:

Velocity (mph) = Velocity (ft/s) x (1 hour/3600 s) x (5280 ft/mile)

= 131.6 ft/s x  (1 hour/3600 s)  x (5280 ft/mile)

= 143.9 mph

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Answer:

v = 3.53x10⁻³ m/s.

Explanation:

We can find the velocity of the rock by energy conservation:

\( \Sigma E_{i} = \Sigma E_{f} \)        

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

Where:

i is for initial and f is for final

k: is the stiffness of the rubber = 20 N/m

x: is the distance of the rubber compression = 5 mm = 0.005 m

m: is the mass of the stone = 40 kg

v: is the velocity =?

Hence, the velocity is:

\(v = \sqrt{\frac{kx^{2}}{m}} = \sqrt{\frac{20 N/m(0.005 m)^{2}}{40 kg}} = 3.53 \cdot 10^{-3} m/s\)

Therefore, the velocity with which the stone leaves the catapult is 3.53x10⁻³ m/s.

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When we say that a galaxy has a lookback period of one billion years, we are referring to how long it took for its light to travel across space to get to us.

What exactly is a galaxy?

Countless stars, solar systems, gas, and dust make up a galaxy. A galaxy is held together by gravity. Additionally, the Milky Way, the galactic center of our galaxy, has a supermassive black hole. When you look up at the stars in the night sky, you notice more stars in the Milky Way.

Why does a galaxy form?

Galaxies' exact origin is unknown to astronomers. Space was largely composed of hydrogen and helium after the Big Bang. According to some astronomers, gravity brought dust and gas together.

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Answer:

a reflected sound wave completely bounces off an object and diffraction occurs when there is an opening in a wall and only the waves that can fit through the wall go and then the waves start to expand again after going through the hole.

Explanation:

Answer:

The elastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.

Explanation:

Let U₁ = mgx be the gravitational potential energy of the object and U₂ = 1/2kx² the elastic potential energy of the spring.

Since U₁ = U₂ = U at x = x₀ = 0.5 m.

if x = 2x₀,

The gravitational potential energy is U₃ = mg(2x₀)

= 2mgx₀

= 2U

The elastic potential energy of the spring is U₄ = 1/2k(2x₀)²

= 1/2k × 4x₀²

= 4(1/2kx₀²)

= 4U

Now, U₄/U₃ = 4U/2U = 2

U₄ = 2U₃

So, the elastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.

Answer: The answer is C, The elastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.

Explanation:

The factors that determine forces a substance's solubility in water are SO2, C2H6OH, and NaCl.

Insoluble and soluble fiber come in two different varieties. Plant gums and pectin are examples of soluble fiber that can be dissolved in water. Water cannot dissolve insoluble fiber. Both plant and hemicellulose are present.

Things who dissolve in water are referred to as being soluble. Salt and sugar are two instances of soluble materials. Any substance that doesn't dissolve in water is referred described as "insoluble." Sand and flour are two examples of impenetrable materials.

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Answer:

Explanation:

So:

(

5

⋅

1

)

+

(

1

⋅

−

4

)

=

(

5

+

1

)

v

5

−

4

=

6

v

v

=

1

6

=

0.17

m

s

The final speed of the cart on the floor surface is 14.28m/sec if a grocery cart weight is  60.8N

Since, we need to find the final speed of the object and distance is given, it means that we can use third equation of motion, which is

v² - u² =2aS where v is the final velocity and u is the initial velocity,a is the acceleration of the object and S is the displacement of the object.

Since weight =60.8N,=W=mg

=>60.8=m×9.8

=>m=60.8/9.8

=>m=6.204kg

Now,we have mass and force,so we need to find the acceleration of cart which is given by the formula

=>F=ma

=>58.1N=6.204×a

=>a=(58.1)/6.204

=>a=9.364m/sec²

Now, we have acceleration and initial velocity of cart=0,so we can apply the third equation of motion

=>v²-0= 2×9.364×10.9

=>v²=204.155

=>v=√204.155

=>v=14.28m/sec

Hence, final speed is 14.28m/sec

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Answer:

pH value is between 6.5 and 6.8

Explanation:

Explanation:

Milk fresh from the cow typically has a pH between 6.5 and 6.7. The pH of milk changes over

The incline is oriented at an angle of approximately 10.8° above the horizontal.

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Answer:

According to Newton's third law of motion, the reaction force is equal to the action force.

Explanation:

Newton's third law of motion states that for every action there is an equal and opposite reaction. This means that if one object exerts a force on a second object, the second object exerts an equal force in the opposite direction. When Plate X pushes on Plate Y with the action force (Fx), Plate Y must push back with an equal force (Fy).

Therefore, the best explanation is that according to Newton's third law of motion, the reaction force is equal to the action force.

For every action, there has equal and opposite reaction - this statement best describes the action and reaction forces on the plates.

As a result of this interaction, there are two forces: one from plate X and one from plate Y. The third law of motion of Newton deals with these two forces, which are referred to as action and reaction forces. Newton's third law is officially expressed as follows: There is an equal and opposite reaction to every action.

The implication of the statement is that there are always two forces acting on the two interacting objects. The force acting on the first object is equal in size to the force acting on the second. The force acting on the first object is acting in the opposite direction to the force acting on the second object. Force pairs—equal and opposing action-reaction force pairs—always exist in pairs.

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Answer:

Explanation:

The power of the crane can be found by using the formula

\( p = \frac{ \orange{w}}{ \orange{t}} \\ \)

w is the workdone

t is the time taken

From the question we have

\(p = \frac{5600}{2.8} \\ \)

We have the final answer as

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The length of a lossless transmission line having a 50-ohm characteristic impedance depends on the frequency of the signal being transmitted.

The length can be calculated using the equation L = λ/4, where L is the length of the transmission line and λ is the wavelength of the signal. The wavelength can be calculated using the equation λ = c/f, where c is the speed of light and f is the frequency of the signal. Therefore, the length of the transmission line can be determined by knowing the frequency of the signal.

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"ECG is an equipment which measure the electrical impulses." Correct option is C.

These electrical impulses are captured by an ECG to provide information about the heart's rate, rhythm, and the intensity and timing of the electrical impulses as they pass through the various heart chambers. EKG variations can indicate a variety of heart-related diseases.

An electrocardiogram (ECG) is a quick examination that can be used to examine the electrical activity and rhythm of your heart. The electrical signals that your heart beats out each time it beats are picked up by sensors that are affixed to your flesh.

Electrocardiography involves attaching tiny, sticky electrodes to the arms, chest, and thighs. These electrodes are wired up to the ECG device so that it can identify the electrical impulses that are sent during each heartbeat.

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(a) The horizontal component of its velocity is 12 m/s.

(b) The speed with which the block is moving at the end of the given time  is 25.36 m/s.

The horizontal component of velocity is the velocity of a projectile directed along x - axis or x direction of the projectile path.

The horizontal component of a velocity is not affected by gravity since the velocity is directed along horizontal path.

This causes the horizontal component of velocity to be constant. That is the initial horizontal velocity is equal to the final horizontal velocity.

Since the rock is thrown horizontally, the horizontal component of its velocity will be constant and equal to 12 m/s.

The final speed of the block at end of the 2.28 s will due to change in vertical velocity.

The final vertical velocity of the block is calculated as follows;

v = u + gt

where;

v = 0 + gt

v = gt

v = (9.8)(2.28)

v = 22.34 m/s

The resultant final speed if calculated as follows;

v = √(Vx² + Vy²)

where;

v = √(12² + 22.34²)

v = 25.36 m/s

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Answer:

None of the light energy from the sun can be used directly to fuel cellular work. First it must be captured in the bonds of a molecule called adenosine triphosphate (ATP).

Explanation:

Answer:

I think the answer is D.)

Explanation:

If it means something needs to melt into liquid i would have gone with B.) or C.) but since it doesn't specifiy. I thought D.) since all you have to do is heat it and it melts or boils.

Answer:

\( \boxed{\sf Distance \ travelled \ by \ car = 195 \ km} \)

Given:

Speed = 65 km/hr

Time = 3.0 hrs

To Find:

Distance

Explanation:

Distance = Speed × Time

= 65 × 3

= 195 km

GiveN:

To FinD:

We know that, Distance is the product of speed of the body and the time taken in the same system of units. Then,

⇛ Distance = Speed × Time

⇛ Distance = 65 km/hr × 3 hrs

⇛ Distance = 195 km

And this is your required answer..\(.\)