Physics High School

Electromagnetic waves are ____ waves consisting of changing electric and magnetic fields


Combing equal amounts of the three primary pigments produces ?

Answers

Answer 1
the first question is Transverse
and if you mix yellow, magenta, and cyan you get black 
Answer 2
Final answer:

Electromagnetic waves are transverse waves consisting of changing electric and magnetic fields, and combining primary pigments results in black or dark gray.

Explanation:

Electromagnetic waves are transverse waves that consist of changing electric and magnetic fields. These fields oscillate at right angles to each other and to the direction of wave propagation. The movements of these fields generate each other, and this interaction forms the electromagnetic wave.

The second part of your question, concerning pigments, seems a bit out of context as it deals with a subject in color theory, from the field of Art or Physics. However, I can tell you that combining equal amounts of the three primary pigments (cyan, yellow, and magenta) results in the production of black or a very dark gray.

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Related Questions

The slope of a Velocity versus Time graph will tell you the object’s what?

A) Acceleration
 
B) Change in position
 
C) Velocity

Thanks

Answers

Hope it helped you.

My name is Charlie.

Today this question is about science,or chemistry.

A. Acceleration is a correct answer. Acceleration is a rate of change in velocity. 

It change in velocity/change in time. Next, to slope will be indicated by the acceleration.

B Change in position is a incorrect answer.

C. Velocity is a incorrect answer. Velocity is a displacement of an object during a specific unit of time. It can used two measurements are needed to determine velocity. It displacement or by the time. Displacement it includes a direction, so the velocity will also includes a direction. It can used speed with direction. Velocity it can be average velocity or an instantaneous velocity.

-Charlie

Have a great day!

Thanks!

((((Psychology))))According to Rubin, the desire to share your innermost thoughts and feelings is:

A. attachment.
B. caring.
C. intimacy.
D. all of the above.

Answers

According to Rubin, the desire to share your innermost thoughts and feelings is

c. intimacy

Hope this helps.
The answer is C. Intimacy


PLEASE HELP!!!! 15 point!!!!!


Scientist tested the effect of a fertilizer on the growth of plants. They had two sets of plants Group A which gets fertilizer water & and Group B which gets only water and sun (but equal amounts to Group A)

1. Explain how this scenario is a controlled experiment and identify the manipulated variable?

2. If the scientist only performed one experiment but it supported their hypothesis why can it not be considered a theory?

Answers

ANSWER 1: The manipulated variable is the fertilizer since the other factors (water and sunlight) are given in equal amounts. It is a controlled experiment because one group receives fertilizer while the other does not. Any differences in growth should be due to either having fertilizer or not.

ANSWER 2: In order for it to be a theory, it has to be tested numerous times by multiple scientists.

Hope it helps. God bless
2_ it doesn't because scientist have to do multiple tests and they have to get the same results

1_i don't know for sure

An electron with a kinetic energy of 3.90 ev collides with a sodium atom.

Answers

The wavelength  transition line is 
Δ = hc/Δ∈
=1240 e V. nm/3.75e V - 0,0ev
=330 .nm
Another wavelength transisiton is 
Δ = hc/Δ∈
1240e V. nm/3.19e V -2.104e V
1140 .nm
Some other wavelength transition are;
590, 816, 2180, 8860.

you stretch a spring by a distance of 0.3 m. the spring has a spring constant of 440 n/m. when you release the spring, it snaps back. what is the kinetic energy of the springs as it reaches its natural length?

Answers

Answer:

19.8 J

Explanation:

According to the law of conservation of energy, the total mechanical energy of the spring (sum of kinetic energy and elastic potential energy) must be conserved:

[tex]K_i + U_i = K_f + U_f[/tex] (1)

where we have

[tex]K_i[/tex] is the initial kinetic energy of the spring, which is zero because the spring starts from rest (2)

[tex]U_i[/tex] is the elastic potential energy of the spring when it is fully stretched

[tex]K_f[/tex] is the kinetic energy of the spring when it reaches the natural length

[tex]U_f[/tex] is the elastic potential energy of the spring when it reaches its natural length, which is zero because the stretch in this case is zero (3)

So

[tex]U_i = \frac{1}{2}k(\Delta x_i)^2[/tex]

where

k = 440 N/m is the spring constant

[tex]\Delta x_i = 0.3 m[/tex] is the initial stretching of the spring

Substituting,

[tex]U_i = \frac{1}{2}(440)(0.3)^2=19.8 J[/tex]

And so using eq.(1) and keeping in mind (2) and (3) we find

[tex]K_f= U_i = 19.8 J[/tex]

50 POINTS!! I'M BEING TIMED, PLEASE HURRY!!

A box is sitting on the floor. It is then pulled with a force, Ft. The free-body diagram of the box is shown. Which describes the motion of the box? It is moving up with a net force of 20 N. It is moving to the right with a net force of 10 N. It is in dynamic equilibrium with a net force of 0 N. It is in static equilibrium with a net force of 0 N.

Answers

I might be a little late on the answer, however it would be a static equilibrium with a net force of 0 N because the sum of either direction of force being put onto the box is 0 in all directions. 10+-10 is 0, and 20+-20 is also 0. So therefore the object is not moving. It is "Static", and the net force is 0 N.
The 4th answer would be correct.

Without the skeletal system, the body could not fight off infection. Please select the best answer from the choices provided. T F

Answers

Answer:

TRUE

Explanation:

got it right on edge 2022.

The statement Without the skeletal system, the body could not fight off infection is false.

The skeletal system provides support, protection, and movement for the body, and it also plays a role in the production of blood cells through bone marrow. However, the primary function of fighting off infections is carried out by the immune system, which includes the lymphatic system, the spleen, the thymus, and bone marrow, among other components. While bone marrow is part of the skeletal system and is crucial for producing immune cells, the skeletal system itself is not the sole or primary defense against infection. Therefore, the statement is incorrect because it overstates the role of the skeletal system in immune function. The immune system, not the skeletal system, is specialized to fight off infections

What aspects of bone’s structure make it stronger than concrete? think about the engineering design of bone. use the terms tensile strength and compressional strength in your answer?

Answers

Bone's structure is optimized for strength due to its complex arrangement of organic and inorganic materials.

Tensile strength is a key factor: collagen fibres in bone resist pulling forces, making it flexible yet tough.

Compressional strength is achieved through the dense arrangement of mineralized hydroxyapatite crystals, providing resistance against crushing loads.

This combination of tensile and compressional strength allows bone to withstand bending, twisting, and impact. In contrast, concrete primarily relies on compressional strength, making it brittle and prone to fracture under tension.

Bone's intricate structure, with collagen providing flexibility and hydroxyapatite providing rigidity, makes it significantly stronger and more resilient than concrete in various mechanical scenarios.

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Bones have a higher tensile and compressional strength than concrete due to their composite structure of collagen fibers and mineralized matrix, along with a complex microarchitecture designed to adapt to mechanical stresses. These aspects make bones robust and efficient weight-bearing structures.

The aspects of bone's structure that make it stronger than concrete are related to its complex microarchitecture and composite nature, which enable it to have a high tensile strength and compressional strength. Bones are formed from collagen, much like the steel rebar in concrete, and a mineralized matrix rich in calcium, which bears similarity to the concrete itself. However, the collagen provides flexibility and tensile strength, while the inorganic salts provide compressional strength, making bones robust and capable of adapting to mechanical stresses.

The ultimate strength of human bones, particularly in the femur, is impressive, with an ultimate compressive strength of 205 MPa and an ultimate tensile strength of 135 MPa. This strength is a result of bones being weight-bearing structures, designed to carry loads much like the columns in a building or fibrous structures like trees. The engineering design of bones takes into account different stresses on different parts of the body, which is why the structure of the femur can vary from thin sheets separated by marrow to cylindrical shapes filled with or without marrow.
The elastic modulus of bone also varies based on whether it is under tension or compression, highlighting the bone's capability to withstand different directional forces. Such properties make bones incredibly efficient at carrying weight and resisting different types of stresses without fracturing under normal circumstances.

What causes the northern and southern halves of the planet to experience winter and summer at opposite times?

Answers

The angle of the Earth on its axis making the sun to beam on the Northern and Southern Hemispheres differently. When one side is fronting the sun, the other is on the side the darkness, so, when it's Winter in the northern half, it's Summer in the southern half. 

Which of the following is an example of a safe laboratory produced?
A) eating or drinking from laboratory glasware
B) Tying back long hair and lose clothing
C) testing an odor by directly inhaling the vapor
D) touching hot objects with your bare hands

Answers

I think you meant to say "procedure" instead of "produced". 

Choice B is the answer as it is the safest and most sensible (to prevent damage to clothing or start a fire for example). The other choices are nonsensical or silly. 

What would you need to know to calculate the angular momentum of a man on a Ferris wheel?

Answers

The angular momentum calculated with respect to the axis of rotation of an object is given by:
[tex]L=mvr[/tex]
where m is the object's mass, v is its tangential speed, and r is its distance from the axis of rotation.

In case of a man on a Ferris wheel, we need to have these quantities in order to calculate his angular momentum. These quantities corresponds to:
- m, the mass of the man
- v, the tangential speed of the wheel at its edge
- r, the radius of the wheel

It is possible to calculate the angular momentum even if we don't know v, the tangential speed. In this case, we need to know at least the angular velocity [tex]\omega[/tex] (because from this relationship we can find the tangential speed: [tex]v=\omega r[/tex]) or the period of rotation of the wheel, T (because we can find the angular velocity from it: [tex]\omega= \frac{2 \pi}{T} [/tex]).

To calculate the angular momentum of a man on a Ferris wheel you need to know the mass distribution, radius, initial and final angular velocity, and angular acceleration of the system.

Angular momentum of a man on a Ferris wheel can be calculated using the formula:

Angular momentum = Moment of inertia x Angular velocity

To calculate this, you would need to know the mass distribution, radius, initial and final angular velocity, and angular acceleration of the system.

which of the following ideas provided an important step toward a more complete understanding of blackbody radiation?

Answers

The theory of blackbody radiation is shown by the equation. E= h×f
Where E = energy of the photon, f is the frequency of photon and h is equal to 6.63 ×10⁻³⁴ J.s in the plank constant. Light exists in form of a bundle of energy which is called photon and its energy is determined by frequency.
Therefore, any emission or absorption of light must involve discrete changes in energy of the system. Light is composed of discrete chunks that must be absorbed as a unit.

Answer:

Light is composed of discrete chunks that must be absorbed as units

Explanation:

What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche?

During an avalanche, the ___energy of the snow on the mountain is converted into ___ energy as the snow cascades down.

Drop down one: Elastic
Kinetic
Potential
Radiant
Drop down two: Chemical
Kinetic
Nuclear
Potential

Answers

1. Potential energy.
2.kinetic energy.

A 0.500-kg glider, attached to the end of an ideal spring with force constant undergoes shm with an amplitude of 0.040 m. compute (a) the maximum speed of the glider; (b) the speed of the glider when it is at (c) the magnitude of the maximum acceleration of the glider; (d) the acceleration of the glider at (e) the

Answers

There is a missing data in the text of the problem (found on internet):
"with force constant k=450N/m"

a) the maximum speed of the glider

The total mechanical energy of the mass-spring system is constant, and it is given by the sum of the potential and kinetic energy:
[tex]E=U+K= \frac{1}{2}kx^2 + \frac{1}{2} mv^2[/tex]
where
k is the spring constant
x is the displacement of the glider with respect to the spring equilibrium position
m is the glider mass
v is the speed of the glider at position x

When the glider crosses the equilibrium position, x=0 and the potential energy is zero, so the mechanical energy is just kinetic energy and the speed of the glider is maximum:
[tex]E=K_{max} = \frac{1}{2}mv_{max}^2 [/tex]
Vice-versa, when the glider is at maximum displacement (x=A, where A is the amplitude of the motion), its speed is zero (v=0), therefore the kinetic energy is zero and the mechanical energy is just potential energy:
[tex]E=U_{max}= \frac{1}{2}k A^2 [/tex]

Since the mechanical energy must be conserved, we can write
[tex] \frac{1}{2}mv_{max}^2 = \frac{1}{2}kA^2 [/tex]
from which we find the maximum speed
[tex]v_{max}= \sqrt{ \frac{kA^2}{m} }= \sqrt{ \frac{(450 N/m)(0.040 m)^2}{0.500 kg} }= 1.2 m/s[/tex]

b)  the speed of the glider when it is at x= -0.015m

We can still use the conservation of energy to solve this part. 
The total mechanical energy is:
[tex]E=K_{max}= \frac{1}{2}mv_{max}^2= 0.36 J[/tex]

At x=-0.015 m, there are both potential and kinetic energy. The potential energy is
[tex]U= \frac{1}{2}kx^2 = \frac{1}{2}(450 N/m)(-0.015 m)^2=0.05 J [/tex]
And since 
[tex]E=U+K[/tex]
we find the kinetic energy when the glider is at this position:
[tex]K=E-U=0.36 J - 0.05 J = 0.31 J[/tex]
And then we can find the corresponding velocity:
[tex]K= \frac{1}{2}mv^2 [/tex]
[tex]v= \sqrt{ \frac{2K}{m} }= \sqrt{ \frac{2 \cdot 0.31 J}{0.500 kg} }=1.11 m/s [/tex]

c) the magnitude of the maximum acceleration of the glider;

For a simple harmonic motion, the magnitude of the maximum acceleration is given by
[tex]a_{max} = \omega^2 A[/tex]
where [tex]\omega= \sqrt{ \frac{k}{m} } [/tex] is the angular frequency, and A is the amplitude.
The angular frequency is:
[tex]\omega = \sqrt{ \frac{450 N/m}{0.500 kg} }=30 rad/s [/tex]
and so the maximum acceleration is
[tex]a_{max} = \omega^2 A = (30 rad/s)^2 (0.040 m) =36 m/s^2[/tex]

d) the acceleration of the glider at x= -0.015m

For a simple harmonic motion, the acceleration is given by
[tex]a(t)=\omega^2 x(t)[/tex]
where x(t) is the position of the mass-spring system. If we substitute x(t)=-0.015 m, we find 
[tex]a=(30 rad/s)^2 (-0.015 m)=-13.5 m/s^2[/tex]

e) the total mechanical energy of the glider at any point in its motion. 

we have already calculated it at point b), and it is given by
[tex]E=K_{max}= \frac{1}{2}mv_{max}^2= 0.36 J[/tex]
Final answer:

To compute the maximum speed, use the equation vmax = Aω. At x = 0, the speed is 0. The maximum acceleration is given by amax = Aω².

Explanation:

To compute the maximum speed of the glider, we can use the equation vmax = Aω, where A is the amplitude (0.040 m) and ω is the angular frequency. The angular frequency is given by ω = √(k/m), where k is the force constant (N/m) and m is the mass (kg). In this case, k = 80 N/m and m = 0.500 kg.

For part (b), the speed of the glider when it is at x = 0 (the equilibrium position) is 0. This is because the velocity is at a maximum when the glider passes through the equilibrium position, and at that point, it changes direction.

The maximum acceleration of the glider can be found using the equation amax = Aω². The magnitude of the maximum acceleration occurs at the position x = -A, so we can substitute -A for x in the equation. Finally, the acceleration of the glider at x = -A can be found by substituting this value into the equation a = -Aω².

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which of the following discoveries can be directly attributed to the use of imaging radar

Answers

Imaging radar has given archaeologists "x-ray vision" and helped them locate sites such as the Lost City of Ubar, which was hidden in the sands of the Sahara Desert, and Angkor, and ancient Cambodian kingdom hidden for centuries under the dense tropical forests which covered it.

Final answer:

Imaging radar has enabled the monitoring of flood extents, improved aircraft detection via Doppler technology, and contributed significantly to space exploration by mapping celestial bodies.

Explanation:

The use of imaging radar has led to several significant discoveries. One such discovery is the ability to monitor flood extents under any weather condition, as demonstrated by data from the European Resource Satellite (ERS-1), which clearly depicted the smooth surface of a flooded Mississippi River deflecting radio signals away while the surrounding rougher land reflected them. Additionally, the Doppler radar technology has enabled the differentiation of aircraft from ground echoes by leveraging the Doppler shift, significantly improving aerial detection systems. Beyond aviation and weather forecasting, radar has been instrumental in space exploration, determining distances to planets, rotation periods of Venus and Mercury, and mapping the terrain of various celestial bodies with high resolution.

A car travels straight for 20 miles on a road that is 30 degrees north of east what is the east component of the cars displacement to the nearest tenth of a mile

Answers

17.3 boiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

*a small object with a momentum of 6 kg∙m/s to the west approaches head-on a large object at rest. the small object bounces straight back with a momentum of 5 kg∙m/s. what is the change in the momentum of the small object? what is the impulse exerted on the small ball? what is the impulse exerted on the large object?

Answers

1) The change in the momentum of the small object is given by the difference between its final momentum and its initial momentum:
[tex]\Delta p = p_f - p_i[/tex]
where [tex]p_f, p_i[/tex] are the final and initial momentum of the small object. Substituting the numbers of the problem, we find
[tex]\Delta p = - 5kg m/s -(6 kg m/s) = -11 kg m/s[/tex]
where we put a negative sign in front of pf because the direction of the object after the collision is opposed to its initial direction.

2) The impulse is equal to the product between the force applied to an object and the time interval:
[tex]J= F \Delta t[/tex] (1)
since the force is the product between the mass and the acceration: F=ma, and the acceleration is equal to the change in velocity divided by the time, we can rewrite (1) as 
[tex]J=F \Delta t=ma\Delta t=m \frac{\Delta v}{\Delta t} \Delta t = m \Delta v = \Delta p [/tex]
So, the impulse is equal to the variation of momentum. Therefore, the impulse exerted on the small object is
[tex]J=\Delta p = -11 kg m/s[/tex]

3) We have to find the final momentum of the large object. Initially, its momentum is zero, because it is at rest. Using the law of conservation of momentum,
[tex]p_i + 0 = p_f + P_f[/tex]
where [tex]p_f, p_i[/tex] are the final and initial momentum of the small object, while [tex]P_f[/tex] is the final momentum of the large object. By substituting the numbers we had before:
[tex]P_f = p_i - p_f = 6 kg m/s -(-5 kg m/s) = 11 kg m/s[/tex]
So, the impulse exerted on the large object is equal to its variation of momentum:
[tex]J= \Delta P = P_f - P_i = 11 kg m/s -0 = 11 kg m/s[/tex]

The impulse exerted on the large object will be [tex]J=11\ kg\frac{m}{s}[/tex]

what will be the impulse?

1) The change in the momentum of the small object is given by the difference between its final momentum and its initial momentum:

[tex]\Delta p=(p_f-p_i)[/tex]

where  [tex]p_f\ \ p_i[/tex]  are the final and initial momentum of the small object. Substituting the numbers of the problem, we find

[tex]\Delta p=-5-6=-11\ \frac{kgm}{s}[/tex]

where we put a negative sign in front of pf because the direction of the object after the collision is opposed to its initial direction.

2) The impulse is equal to the product between the force applied to an object and the time interval:

[tex]J=F\times \Delta t[/tex] (1)

since the force is the product between the mass and the acceration: F=ma, and the acceleration is equal to the change in velocity divided by the time, we can rewrite (1) as

[tex]J=F\times \Delta t=ma\Delta t=mv\frac{\Delta t}{\Delta t}=mv=\Delta p[/tex]

So, the impulse is equal to the variation of momentum. Therefore, the impulse exerted on the small object is

[tex]J=\Delta p=-11\ \frac{kgm}{s}[/tex]

3) We have to find the final momentum of the large object. Initially, its momentum is zero, because it is at rest. Using the law of conservation of momentum,

[tex]p_i+0=p_f+P_f[/tex]

where  are the final and initial momentum of the small object, while  is the final momentum of the large object. By substituting the numbers we had before:

[tex]P_f=p_i-p_f=6-(-5)=11\ \frac{kgm}{s}[/tex]

So, the impulse exerted on the large object is equal to its variation of momentum:

[tex]\Delta p=P_f-p_i=11-0=11\ \frac{kgm}{s}[/tex]

Hence the impulse exerted on the large object will be [tex]J=11\ kg\frac{m}{s}[/tex]

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photoelectric effect definition

Answers

Photoelectric effect is the emission of electrons by a substance that has been subjected to electromagnetic energy 

When light waves strike a blue object, what happens to the light waves of all colors except blue?

Answers

In this situation I am pretty sure that all colors except for the blue light would be absorbed. The blue light would be reflected.

Answer:

All colors are absorbed by the object except blue color.

Explanation:

When a white beam of light any object the light beam gets dispersed in its constituent colors. The object reflect a single color and absorb all remaining colors. So the object appears of the color which is reflected by object.

When the light beam strikes the blue object it gets dispersed in its constituent colors. All the colors are absorbed by the object except blue color. Blue color is reflected by the object.

Thus, the object appears of blue color.

Which of the following best describes acceleration

A. S/M

B. M/S

C. M2

D. M/S2

Answers

Acceleration is best described as : m/s2

Reason :

Acceleration (a) = velocity (v) /time (t)
a = m/s /s
a = m/s2

Which of the following are more reactive than tin?

Check all that apply.

A. Gold
B. Calcium
C. Aluminum
D. Copper
pick more than one it multiple answer

Answers

Gold and copper are less reactive than Hydrogen. 
Hydrogen is less reactive than tin. This means that tin is more reactive than Gold and Copper. 

Calcium and Aluminum are the one reactive than tin.

B and C are right for apex!!

which statement best describes Gay-Lassac’s law

Answers

Gay-Lussac’s Law is a component of the Ideal Gas Law that deals with the relationship between the change of pressure and temperature while holding volume constant. The equation looks like this:

P1 P2
— = —
T1 T2

where P1 and T1 represent the pressure and temperature before the change, and P2 and T2 represent the pressure and temperature after.
Final answer:

Gay-Lussac's law states that the pressure of a given amount of gas is directly proportional to its temperature on the Kelvin scale, provided the volume is constant. This was initially discovered by Guillaume Amontons and later refined by Joseph Louis Gay-Lussac. The mathematical representation is P proportional to T, P = constant × T or P = kx T.

Explanation:

The best description of Gay-Lussac's law is that it states that the pressure of a given amount of gas is directly proportional to its temperature on the Kelvin scale when the volume is held constant. Guillaume Amontons was the first to empirically establish this relationship between pressure and temperature of a gas around 1700, and Joseph Louis Gay-Lussac defined the relationship more accurately around 1800. This relationship is expressed mathematically as PxT or P = constant × T or P = kx T.

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A force of 50 pounds is directed 30 from the horizontal, find the vector that represents this force.

Answers

I assume it is directed 30 degrees above the positive x-axis. F = 50 pounds F_x = 50 cos(30) pounds = 43.3 pounds F_y = 50 sin(30) = 25 pounds Let i and j be unit vectors along the x and y axes, respectively.  Then F = F_x i + F_y j = (43.3 i + 25 j) pounds

Why is the reactor coolant water kept contained within the primary loop instead of allowing it to mix with the feed water and leave through the cooling tower? it is contaminated and radio active?

Answers

For the answer to the question above, I the answer is yes, It is both contaminated and radioactive at the same time. That's why they keep the water spinning.I hope my answer helped you. Have a nice day!

Answer:

Yes, It is contaminated and radio active

Explanation:

The coolant in the primary loop is actually in contact with the reactor fuel. So it will have some trace amount of the reactor fuel and all the other radioactive by products like cobalt.

Also the neutrons in the reactor will convert the hydrogen in the water into radioactive tritium. and the oxygen into radioactive nitrogen.

This is why the primary loop water is kept isolated from the feed water.

How does electromagnetic induction happen?

Answers

it occurs whenever a magnetic field and an electric conductor move relative to one another so the conductor lines in force in the magnetic field.

1.The question below refers to the following graph.



What is the approximate period of this wave?

15 centimeters
15 seconds
10 seconds
5 seconds
2. The question below refers to the following graph.



What is the wavelength of this wave?

10 cm
15 cm
60 cm
cannot be determined
3. The question below refers to the following graph.



What is the frequency of this wave?

1 wave/sec
10 waves/sec
0.1 wave/sec
cannot be determined

Answers

1. 10sec

2. Can not be determined

3. 0.1wave/sec

Answer :

(1) T = 10 seconds

(2) Wavelength cannot be determined.

(3) Frequency, [tex]\nu=0.1\ waves/sec[/tex]

Explanation :

(1) From the given graph :

Time period of the wave is defined as the time taken by it to complete one cycle.

So, the period of this wave is (C) " 10 seconds".

(2) The distance between two consecutive crest or the trough is called the wavelength of the wave.

From the graph it is clear that the distance between two consecutive crests is 10 cm(see attached figure).

So, the correct option is (a) "10 cm".

(3) As the time period of the wave is 10 seconds.

So, [tex]f=\dfrac{1}{T}[/tex]

[tex]f=\dfrac{1}{10\ s}\ waves/sec[/tex]

[tex]f=0.1\ waves/sec[/tex]

So, the correct option is (c) " 0.1 wave/sec ".

Which of the following are disadvantages of solar energy? Check all that apply. A. It contributes to global warming. B. It is expensive. C. It is not equally effective for all areas of the world. D. It is not effective at all times of day.

Answers

B, C, and D.

Solar energy is green energy, it wouldn't contribute to global warming. However some places of the world don't receive as much sunlight (the poles) and at night you don't receive as much sunlight either. Solar energy is also very expensive to farm.

Which of the following best describes alternating current? current that increases and decreases in temperature current that constantly turns on and off current in which charges change direction current that gains and loses electrons

Answers

Answer: Charge that jiggles  back and forth very quickly.

Explanation: Alternating current is an electric current that peroidically reverses direction  .

A P E X

The following best describes alternating current, Charge that jiggles  back and forth very quickly.

What increases or decreases alternating current?

A transformer is a machine that either boosts or reduce the voltage of alternating current.

Step-up transformer rises the voltage of alternating current whereas step-down transformer reduces the voltage of alternating current.

Thus, Alternating current is an electric current that peroidically reverses direction.

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Which statement is true? A) All waves travel at the same speed through any medium. B) All waves travel at the same speed if no medium is present. C) Electromagnetic waves require a medium, but mechanical waves do not. D) Mechanical waves require a medium, but electromagnetic waves do not. Eliminate

Answers

D) Mechanical waves always require a medium, while electromagnetic waves do not and can thus travel through open space.
i just took the test and it D . have a good day

*PLEASE HELP WILL GIVE BRAINLIEST*

List the following events in the order that they happen as a sound wave is generated and transmitted through the air.

1. The object's energy transfers to the surrounding air particles.

2. Something causes an object to vibrate.

3. Vibrating air particles bump into other air particles.

4. Air particles around the object begin to vibrate.

5. Energy transfers outward from air particle to air particle.

Answers

Answer: The order is 2,1,5,4,3

Explanation: Hope This helps.

The order in which events occur in the generation and transmission of a sound wave begins with an object vibrating, which transfers energy to air particles, leading to the vibration of surrounding air and the eventual transfer of energy from particle to particle, forming a sound wave.

Sound is produced and travels through a medium via a series of events that can be listed in sequential order:

Something causes an object to vibrate.

The object's energy transfers to the surrounding air particles.

Air particles around the object begin to vibrate.

Vibrating air particles bump into other air particles.

Energy transfers outward from air particle to air particle.

For example, when a tuning fork is struck, its tines vibrate and cause air molecules nearby to oscillate. These vibrations propagate outward as successive air molecules collide, similar to ripples in water when a stone is thrown. This movement of air molecules forms a sound wave, which can be detected by the ear as changes in air pressure and interpreted as sound.

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