a material that is not a mixture; it has the same properties all the way through is called. Its 9 letters long and the second letter is u and the eighth letter is c. Its a crossword clue by the way

Answer:

For a given force (as determined by the elastic modulus), "light" molecules can oscillate at a greater frequency than "heavy" molecules; so a less dense medium will have a higher frequency per wavelength (i.e. a higher wave speed) than a more dense medium. The speed of sound in air is 332m/s.

Explanation:

i need one more brainliest plz

Depending on the different mediums, sound can travel faster through them.

Answer:

3) a skier racing down a hill

Explanation:

Remember kinetic energy is energy which a body possess by virtue of being in motion. So anything that is in motion will gain kinetic energy and lose potential energy. Answer 3 was the only object in motion. Kinetic energy is also named energy of motion.

Answer:

Freefalling is a downward movement under the force of gravity only.

Explanation:

Hope this helps!

According to Boyle's Law, an ideal gas at a constant temperature will satisfy the following relation between the initial and final conditions of pressure and volume:

Isolate P_2 from the equation:

Substitute the values for the initial pressure as well as for the two volumes to find the value of the final pressure of the gas:

Therefore, the final pressure of the gas is:

The slope of position versus time graph represent the velocity.

position vs. time graph attached below.

In a position-time graph, the velocity of the moving object is represented by the slope of the graph line.

So, the position vs. time graph for a person walking at a  constant speed of 1 m/s for 10 seconds will be a straight line having slope of 1 in the interval of 0 to 10 seconds.

Similarly,  the position vs. time graph for a person walking at a  constant speed of 4 m/s for 10 seconds will be a straight line having slope of 4 in the interval of 0 to 10 seconds.

Graph attached below.

Learn more:

https://brainly.com/question/24191409

Answer:

The bright blue and black colors represent the following:

Constructive and destructive interference are represented by the blue and black colors, respectively. When two water waves collide constructively, the resultant wave is bright blue, while when they collide destructively, the resultant wave is black in color.

Explanation:

   When two propagating waves with the same frequency (say, \(\nu\)) and wavelength (say,\(\lambda\)) but slightly different amplitudes (say, A 1 and A 2) traveling in the same direction interfere or are superimposed on each other (that is incident at the same point or object), a third resultant wave with a different amplitude (increased or decreased) but same wavelength and frequency is generated.  

The direction difference between the two waves determines whether they intervene constructively (increasing the amplitude of the resultant wave) or destructively (increasing the amplitude of the resultant wave) (decreased amplitude of the resultant wave). To put it another way, when the difference in direction between the two waves is of the form -

      \(\Delta x = n\lambda , n=0,1,2,.....\) is the order of interference.

The two waves are then assumed to be in phase, and the interference is constructive, resulting in the resultant wave having a larger amplitude (which is the sum of the two amplitudes \(A_1 +A_2\)  also known as a maxima). When the difference in direction between the two waves is in the form -

  \(\Delta x = (2n-1)\frac{\lambda}{2} , n=0,1,2,.....\) is the order of interference.

The two intervening waves are then said to be out of phase, and the interference is disruptive, resulting in the resultant wave having a lower amplitude (which is the difference between the two amplitudes \(A_1+A_2\), also known as a minima).

Hence , the graphical representation of constructive (blue )and destructive (black) is attached.

Answer:

2.0 m/s

Explanation:

i found it on quizlet

Answer:

Ionic Compound

Explanation:

We know that an ionic compound dissolves easily in water. Its melting point is very high, and it is a conductor.

The equation for Ionic Compound (IC) versus Electricity (EC) is

IC=1/2 divided by EC

EC is the base for the mathematics, so EC is a base warmth at 360.

360 divided by 1/2 is 180

That is the speed in which the current has.

Glad I could help!

Call me if ya need anything!

:)

The angle of refraction is a. 15°

Snell's law is described as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given team of media”.

By Snell's law:

η = sin i / sin r. i = 25, η = 1.6

1.6 = sin25° / sin r

sin r = sin25° / 1.6

= 0.4226/1.6= 0.2641

calculating

r = sin⁻¹( 0.2641 )

sin−1(0.264) is ≈ 15.3075

the angle of refraction is a. 15°

So the angle associated with the incidence and refraction can have a relation to the refractive index of the two mediums. Snell's First Law: It states that the incident ray, the refracted ray and the standard lie on the same plane.

To learn more about refraction, refer

https://brainly.com/question/15838784

#SPJ9

The nail exerts the exact force of 200N back to the hammer.

A force is a push or a pull. It is the external force exerted on a body to either change its position or its direction.

Newton's third law states that for every action (force) in nature there is an equal and opposite reaction.

If object A exerts a force on object B, object B also exerts an equal and opposite force on object A.

In conclusion, according to Newton's third law, the nail would be exerting the same amount of force the hammer exerted on it.

Learn more about forces:https://brainly.com/question/388851

#SPJ1

Electric system components for EV or HEV are :

An electric vehicle is referred to as an EV. Vehicles known as electric vehicles (EVs) can run entirely or partially on electricity. Because they have fewer moving parts to repair and consume little to no fossil fuels, electric vehicles are very economical to operate (petrol or diesel).

Everything must be taken into account when assessing its environmental impact. Given the low total environmental impact of EVs, this implies that the severity of these production emissions reduces.

One method for reducing the lifecycle emissions of electric vehicles is recycling. Again, evidence can disprove erroneous assumptions.

To learn more about electric vehicle:

https://brainly.com/question/27434548

#SPJ4

Because the radiant of the Lyrid meteor shower is located in the constellation Lyra, one can conclude that the meteors in this shower are named after the constellation where they appear to originate.

Radiant is the point in the sky where the meteors appear to be coming from, and it is used to identify the specific meteor shower. When the Earth passes through the debris left by a comet or asteroid, the tiny particles collide with our atmosphere, causing the meteor shower. The Lyrid meteor shower is caused by the Earth passing through the debris left by Comet Thatcher.

Constellations are groupings of stars that are used to help navigate the night sky. The constellation Lyra is a small constellation that is easily recognizable by its bright star Vega. The Lyrid meteor shower occurs annually in late April when the Earth passes through the debris left by Comet Thatcher.

Observers can see around 10-20 meters per hour during this time. So, in conclusion, the radiant of the Lyrid meteor shower being in the constellation Lyra allows for the identification and naming of the meteor shower.

You can learn more about meteor showers at: brainly.com/question/16517600

#SPJ11

Answer:

15 μF

Explanation:

If two capacitors are in parallel, the equivalent capacitance is equal to the sum of the capacitances, so for the first two capacitors, we get:

C = 10 μF + 20 μF

C = 30 μF

Then, this capacitor C is in series with another capacitor of 30μF. For capacitor in series, we can find the equivalent as follows

Therefore, the answer is 15μF

Answer:

100 m/s^{2}

Explanation:

the given information we have is:
vi = 30m/s

vf = 20m/s

t = 0.10s

we need to find a so we will use the following kinematics equation

\(vf=vi+at\)

we can rearrange the equation so it will give us our desired answer like so:

\(a = \frac{vf-vi}{t}\)

now we can plug in our given numbers

\(a = \frac{20 m/s - 30 m/s}{0.10s}\)

which will equal

\(100 m/s^{2}\)

Answer:

Voltage

Explanation:

Answer:

Nonmetals gain

while metals lose

Answer:

We have 14 friends, and each team must have 6 players:

Then, in the two teams, we have 2*6 = 12 players.

This will mean that 2 of the friends can not be included in the game.

To solve this:

For example, each of those 2 players go to one of the teams, so we actually have two teams of 7 players.

Only 6 of them will play at the time, and the other player will rotate each fixed amount of time

Then the correct answer would be:

Rotate the players (in the teams) so all of them can play.

Answer:That only applies to highly polished surfaces, eg mirrors.

If you take a high quality laser (ie with low divergence) and aim it at a wall, you can see the spot where the laser beam reaches the wall from anywhere with a direct line-of-sight to the spot where the laser beam reaches the wall. This due to micro imperfections on the surface of the wall. At a microscopic level, the wall surface is very rough and pointing in all directions.

As to why, a beam of light bounces of a highly polished surface, I can only surmise that it is essentially due to kinematics, ie the only force opposing the light beam is normal to the surface, hence there no forces along the reflective surface. Since there are no forces along the reflective surface, the speed component of light along the reflective surface remains unchanged. However, on the plane perpendicular to the reflective surface the, the light photons bounce off at the same speed at which the hit the reflective surface because the mass of the reflective surface is much much much larger than the mass of the photons, which means that the reflective surface won’t move at all. Since conservation of momentum requires that momentum after the collision be the same as the momentum before the collision then the only way for that to happen is if the velocity of the photon perpendicular to the reflective surface is of exactly the same magnitude but in the opposite direction. Vector resolution of the speed component of the reflected beam means that the angle of reflection must be the same as the angle of incidence.

Explanation:

The cost of energy consumption to operate the heater for 15 days is $2.25

Voltage (V) = 200 V

Current (I) = 25 A

Power (P) = VI = 200 * 25 = 5,000 W

Now, the calculation of the energy consumption for 15 days in KW/h

We will convert W to kW,

1000 W = 1kW

Therefore,

5,000 W = 5000 W × 1 KW / 1000 W = 5kW

The daily energy consumption will be calculated. This is attainable as follows,

P = 5kW

Time(t) = 10 h

Energy (E) = P/t = 5/10 = 0.5 kW/h per day.

Finally, we will calculate the energy usage for the next 30 days. This is attainable as follows:

1 day = 0.5 kW

Cost of one day = 0.5 * 0.30 = $ 0.15

Now, the cost to operate the heater for 15 days = $ 15 * 0.15 = $2.25

To read more about energy consumption, visit https://brainly.com/question/16025398

#SPJ1

Answer & Explanation:

This can be explained with Newton's first law, Inertia - if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.  

When you walk, your entire body is in a forwarding motion. If your toe hits an object (in this case, a chair), only this unfortunate toe will stop while the rest of your body continues its forwarding motion, resulting in you falling forward.

If you shine a green light on a white sheet of paper, the paper would appear to be green. This is because an object appears to be a certain color because it reflects that color of light back to our eyes.

When white light, which contains all the colors of the visible spectrum, hits a white sheet of paper, the paper reflects all those colors back to our eyes, making it appear white. However, if you shine a green light on the paper, the paper will absorb all the colors of the visible spectrum except for green. The green light will be reflected back to our eyes, making the paper appear green. Therefore, the correct answer to this question is d) Green.
The color that a white sheet of paper would appear when you shine a green light on it is d) Green.

When a green light is shone onto a white sheet of paper, the paper appears green because it reflects the green light. White objects reflect all wavelengths of visible light, so when only green light is present, it only has green light to reflect. Therefore, the paper appears green to our eyes.

In summary, the white paper appears green under green light because it reflects the green light and no other wavelengths are present to create a different color.

To know more about green visit

https://brainly.com/question/1159962

#SPJ11

The normal stress is 518kpa and the shear stress is 518kpa.

Any object or body that experiences an external force that is perpendicular to the cross-sectional area undergoes stress in order to restore its original shape. The stress created in this way by a force acting perpendicularly on a particular area is known as normal stress.

The tension that is created in an item when a force applies parallel to its surface area is known as shear stress. The force F is acting parallel to the surface area ABCD, creating shear stress in the item, as shown in the drawing above.

F=11×cos45

F=7.77KN

V=11×sin45

V=7.77KN

Calculate the area at the section.

A=\(\frac{0.15\times0.075}{cos45}\)

A=0.015

Normal stress=\(\frac{7.77}{0.015}\)

=518kpa

Therefore, the normal stress at the section is 518 kpa

Shear stress =\(\frac{7.77}{0.0159}\)

=518kpa

Therefore, the shear stress at the section is518 kpa.

Learn more about stress

brainly.com/question/25632718

#SPJ4

Observation– the process of using the five senses to gather information

Answer:

Distance = speed*time = (52/1.6)*0.25 = 8.125miles

Explanation:

(52/1.6)*0.25 = 8.125miles

Answer: When you have more than one battery in a circuit, you add the values of the individual batteries to get the overall voltage of the circuit.

Explanation:

Answer:

they both produce energy

Explanation:

the atomic radius get bigger.

this is because as you add more electrons to an anion the electrons get farther apart.

they do this because they don't like each other so when you add more they need more space to stay away from each other

The Nernst Equilibrium Potential is the potential energy (in mV) when an ion is in electrical equilibrium. The correct option is C.

The Nernst equilibrium potential is a theoretical membrane potential at which the electrical gradient of an ion is precisely counterbalanced by the opposing chemical gradient. For the ion, this means that there is no net flux of the ion through the membrane, and it is at equilibrium.

As a result, this concept defines the voltage at which ion movement would be equal if there were no other forces opposing the movement. For a single ion, the Nernst equilibrium potential may be computed utilizing the following formula:

E ion = (RT/zF) * ln([ion]outside/[ion]inside)

where E ion  represents the Nernst equilibrium potential for an ion, R is the gas constant, T is temperature (in Kelvin), z is the charge of the ion, F is Faraday's constant, and [ion]outside/[ion]inside represents the ion concentration ratio outside/inside the cell.

learn more about potential energy here

https://brainly.com/question/21175118

#SPJ11

A free body diagram is a diagram that shows the direction of the forces that are acting on a body.

A free body diagram is a diagram that shows the direction of the forces that are acting on a body. We know that force is a vector quantity. This implies that the magnitude and the direction of a force are equally important when we are dealing with the forces.

Now, in a thug of war, there are two forces that are acting on the rope. The forces acts from the opposite ends in which the rope is being pulled. The rope would move in the direction in which the pulling that is exerted is found to be of greater magnitude.

Learn more about free body diagram:https://brainly.com/question/24087893

#SPJ1

Answer:

1609.3

Explanation: