Can someone give me a detailed explanation on the physics of drums? How do drums get that sound from a physics perspective? (It is for a project on the physics of musical instrument and I have drums

Convection is a type of heat transfer that occurs when a fluid is heated and the resulting buoyancy forces cause the heated fluid to move.

Buoyancy force is the upward force exerted on an object immersed in a liquid or gas, due to the pressure of the liquid or gas pushing up on it. It is also known as the Archimedes principle, named after the famous Greek mathematician and inventor, Archimedes of Syracuse.

In order to explain convection, we can use kinetic theory, which states that all matter is composed of particles that are in constant motion. When the fluid is heated, the particles that make up the fluid gain energy and move faster. This faster movement causes the particles to move further apart, resulting in an increase in pressure. This pressure difference causes the hotter, less dense particles to move upward, while the cooler, denser particles move downward. This movement of fluid particles is convection.

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Answer: the answer is 3rd

Answer:

Its Newton third law of motion.

Explanation:

For every action,there is equal and opposite reaction.

Answer:

This structure can be viewed as consisting of six separate parts: (1) a nucleus, (2) a central bulge, (3) a disk (both a thin and a thick disk), (4) spiral arms, (5) a spherical component, and (6) a massive halo. Some of these components blend into each other. Three views of the Milky Way Galaxy.

Explanation:

Answer:

1) a nucleus, (2) a central bulge, (3) a disk (both a thin and a thick disk), (4) spiral arms, (5) a spherical component, and (6) a massive halo

Explanation:

Answer:

The answer is water

Explanation:

it has a netural ph of 7.0

why is the only option milk?

The Ph for milk is about 6.5 to 6.7,  it varies becauses milks gets sour when it rots.

Answer:

The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element)

Explanation:

Answer:

Lookback time explains that the farther away something is, farther in the past we see it. The Sun's light takes about 8 minutes to reach our eyes. So in reality, we see the Sun as it was 8 minutes ago.

Explanation:

Answer:

d = 6 km

Explanation:

In this case we have the relative speed of the boot changes, suppose that the boat and the river have the same direction when the boat goes from A to point B

       vbr = vrt + vbt

        vbr = 2 + 4

        vbr = 6 km / h

        v₁ = 6 km / h

velocity is constant

         v₁ = d / t₁

         t₁ = d / v₁

when the boat returns to the starting point the speed is both opposite

        vbr = vbt - vrt

        vbr = 4-2

        vbr = 2 km / h

        v₂ = 2 km / h

as the speed is constant

         t₂ = d / v₂

they also indicate that the total time is 4 h

       t₁ + t₂ = 4

we substitute

       4 = d / v₁ + d / v₂

       4 = d (1 / v₁ + 1 / v₂)

       d = 4 / (1 / v₁ + 1 / v₂)

let's calculate

       d = 4 / (1/6 + 1/2)

       d = 4 / 0.6666 67

       d = 6 km

If the Earth were modelled as a spinning vertical cylinder, the temperature distribution would show a pattern of lowering temperatures from the sides (equator) to the top and bottom (poles).

If the Earth were modeled as a vertical cylinder rotating on its axis, we can expect a general distribution of heat that varies with different regions of the cylinder, including the sides, top, and bottom. Here's a description of the possible temperature distribution:

   The sides of the cylinder, representing the Earth's equatorial regions, would generally experience higher temperatures due to their proximity to the Sun. These regions would be characterized by hot or warm temperatures, as they receive more direct sunlight and experience longer durations of daylight.

   The top region of the cylinder, corresponding to the Earth's North Pole or South Pole, would experience cold temperatures. These areas receive oblique sunlight, leading to lower solar radiation and shorter daylight periods. As a result, the temperatures would generally be cold, with icy conditions prevailing.

   The bottom region of the cylinder, corresponding to the opposite pole from the top, would exhibit similar characteristics to the top region. It would also experience cold temperatures due to the oblique sunlight and shorter daylight periods.

Overall, the temperature distribution on the Earth modeled as a rotating vertical cylinder would follow a pattern of decreasing temperatures from the sides (equator) to the top and bottom (poles).

This distribution is influenced by the varying angles at which sunlight reaches different latitudes, leading to variations in solar radiation and daylight duration.

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Answer:

a) Time = 2.67 s

b) Height = 35.0 m

Explanation:

a) The time of flight can be found using the following equation:

\( x_{f} = x_{0} + v_{0_{x}}t + \frac{1}{2}at^{2} \)   (1)

Where:

\( x_{f}\): is the final position in the horizontal direction = 80 m

\( x_{0}\): is the initial position in the horizontal direction = 0

\(v_{0_{x}}\): is the initial velocity in the horizontal direction = 30 m/s

a: is the acceleration in the horizontal direction = 0 (the stone is only accelerated by gravity)

t: is the time =?  

By entering the above values into equation (1) and solving for "t", we can find the time of flight of the stone:  

\( t = \frac{x_{f}}{v_{0}} = \frac{80 m}{30 m/s} = 2.67 s \)

b) The height of the hill is given by:

\( y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2} \)

Where:

\( y_{f}\): is the final position in the vertical direction = 0

\( y_{0}\): is the initial position in the vertical direction =?

\(v_{0_{y}}\): is the initial velocity in the vertical direction =0 (the stone is thrown horizontally)            

g: is the acceleration due to gravity = 9.81 m/s²

Hence, the height of the hill is:

\( y_{0} = \frac{1}{2}gt^{2} = \frac{1}{2}9.81 m/s^{2}*(2.67 s)^{2} = 35.0 m \)  

I hope it helps you!

Answer:

1=false and 2=1st answer is correct

Answer: the dorsal cavity

Explanation:

Dorsal body cavity is the body cavity in the human body which is located posteriorly and it comprises of two type of body cavities that are cranial and the spinal. The cranial cavity is formed inside the skull and it protects the vital organ brain inside the bony protection and the spinal cavity houses the spinal cord. Thoracic cavity and pelvic cavity are the ventral cavities that means they are present in the front of the body.

Answer:

the cranial cavity

the vertebral cavity

Explanation:

i got it right

The most scientific guess (hypothesis) based on what is known about the behavior of galaxies is that Galaxies are continuously moving away from each other. This hypothesis can be tested using Hubble's Law.

Hubble's law indicates that almost all galaxies are moving apart from one another because the universe as a whole is expanding. Choose any two galaxies at arbitrarily, and they're most likely traveling apart from each other.

Hubble discovered that galaxies move away from us at a rate proportionate to their distance: more distant galaxies move away faster than closer ones. The accompanying graphic shows Hubble's classic graph of measured velocity vs. distance for neighboring galaxies.

The graph shows a linear relationship between galaxy velocity (v) and distance (d).

The equation for the above linear relationship is:

                                          v = H₀ x d

Where:

H₀ is the expansion rate

v = velocity of the galaxy; and

d = distance.

Using the above formula, the astronomer can measure or test to know whether indeed the new galaxy is moving relative to the Milky Way galaxy and at what rate.

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Answer:

a) F = 5.14 10⁻⁸ Hz,  f = 4.76 10-8 Hz,  b)   v = 2.29 m / s,   f = 42.5 Hz

Explanation:

a)This problem has two parts.

For the calculations relative to the planet Venus, we use that the period and the frequency are related

            f = 1 / T

frequency of the orbit around the Sun

Let's reduce the period to the SI system

           T = 225 days (24h / 1days) (3600 s / 1h) = 1.94 10⁷ s

           F = 1 / 1.94 10⁷

           F = 5.14 10⁻⁸ Hz

rotation frequency

            T = 243 d = 2.1 107 s

             f = 1 / T

             f = 1 / 2.1 107

            f = 4.76 10-8 Hz

b) give the data of some marine waves

the speed of the wave can be found with kinematics

            v = x / t

            v = 50.0 / 21.8

            v = 2.29 m / s

If the wavelength is L = 9.28m

this distance is the distance between two consecutive ridges or valleys

             λ / 2 = L

             λ = 2L

             λ = 2 9.28

             λ = 18.56 m

the speed of the wave is

             v = λ f

             f = v /λ

             f = 2.29 / 18.56

             f = 42.5 Hz

Answer:

Explanation:

When a coil of wire is moved around a magnet, it induces electrons into the wire and creates electric current. Thus, the correct option is

moves through and cuts magnetic field lines

Answer:

Okay I might be wrong and sorry if i am either its 12 or 0.402

Explanation:

* I recommend the second one cause its more logical

Be aware I might be wrong

We have that for the Question" how long will this nonstop trip from stein to constance take?" it can be said that  this nonstop trip from stein to constance take

From the question we are told

Generally the equation for the distance from  stein to schaffhausen    is mathematically given as

d_1=2/3(x+y)

And distance from  schaffhausen to stein

d_2=(x-y)

Therefore

2/3(x+y)=x-y

x=5y

Hence from (x-y)

d_3 =4x/5

Thereofre

Stein to constance

d_3 =4x/5

Where

\(Time=\frac{d}{v}\)

T=4/5hrs

T=4/5*60*60

T=2880s

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The correct option is option E) three times slower than on Earth.

The acceleration due to gravity near the surface of Mars is about one-third of the value near the Earth's surface, which is approximately 3.71 m/s^2. On Earth, the acceleration due to gravity is approximately 9.8 m/s^2.

Gravity is a fundamental force of nature that acts between any two masses. It is what holds the planets in orbit around the Sun, and what keeps the Moon in orbit around the Earth.

The strength of the gravitational force between two objects depends on their masses and the distance between them.

The final velocity of an object falling under the influence of gravity can be calculated using the equation:

vf = vi + g * t

where:

vf = final velocity

vi = initial velocity (assumed to be zero for an object dropped from rest)

g = acceleration due to gravity

t = time of fall

If a rock fell for the same amount of time on Mars and Earth, the final velocity of the rock on Mars would be:

vf = vi + 3.71 m/s^2 * t

and the final velocity of the rock on Earth would be:

vf = vi + 9.8 m/s^2 * t

Since the time of fall is the same in both cases, we can see that the final velocity of the rock on Mars would be one-third of the final velocity of the rock on Earth. So, the speed with which the rock hit the ground on Mars would be lower than the speed with which it hit the ground on Earth.

Therefore, The correct option is option E) three times slower than on Earth.

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Answer: Newton was a realist

Explanation: Newton held a realist reading of scientific theory as based upon inference from facts and observation, and his gravitational theory (or NGT) as deduced from observed phenomena and Kepler's laws.

The new  time period of the system is 8.77 sec. If she stands up.

calculation

T = 2π√(L/g)

l = g*(8.85/2π)^2

new length = l -0.35= 8.85-0.35

T = 8.77 sec

Term (T) is the amount of time an oscillating body takes to repeat itself, and Frequency (f or ν) is the variety of instances it repeats in one 2d or unit time. in case you degree time in s (seconds) then frequency is measured in Hz (cycles or durations in keeping with second.

center of mass:

The centroid of a mass distribution in space is the unique point where the weighted relative positions of the distribution masses sum to zero. This is the point where force can be applied to produce linear acceleration without angular acceleration.

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Yes there are

Explanation:

Both kind of charges exist. (e≈1.60 x 10^-19 C)

Charge is the intrinsic property of a body, that allows it to have either of two kinds of itself.

Positive elementary charge is

\({x}^{1 +} \)

And negative is

\( {x}^{1 -} \)

There are two types of electric charges in nature, they are positive and negative charges.

What is meant by charge ?

Charge is defined as the intrinsic property of matter, by which it experiences a force, when placed in an electromagnetic field.

Here,

In nature, there are two type of electric charges. They are positive charge and negative charge.

The two charges exists in the nature, because, the positive charge attracts the negative charge.

The earth is actually neutral in nature. If a positive charged body is connected to the earth, the positive charge will be drained to the ground. This can be clearly described that, when the surface of earth becomes positively charged, there occurs a potential difference between the surface and the ground.

As a result, the electrons flows from the ground to the surface. The negative charge and positive charges cancels each other and thus neutralizing the surface.

The same happens when a negative charged body is connected to the surface of earth, the charge will be neutralized by the positive charge.

Hence,

There are two types of electric charges in nature, they are positive and negative charges.

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The difference in the apparent movement of the man, trees, and mountains in the video is due to their relative distances from the camera, with the closer objects showing more parallax than the more distant ones.

Parallax is the apparent shift in position of objects relative to each other when viewed from different angles. In the case of the video, the man is closer to the camera than the trees and mountains, which means that his apparent movement will be greater than theirs when the camera moves.

The trees, although farther away than the man, are still relatively close to the camera, so they appear to move slightly as the camera pans. The mountains, however, are so far away that their apparent movement is negligible.

Therefore, the differences in parallax between the man, the trees, and the mountains in the video has to do with their relative distances from the camera.

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The correct answer is b) 2.25 s.

To find the time it takes for the motor to lift the object, we can use the formula for power:
Power = Work / Time

We are given the power output of the motor (8.0 W) and the work done by the motor, which is equal to the force applied to the object multiplied by the distance it is lifted:

Work = Force x Distance = (Mass x Acceleration) x Distance = (2.0 kg x 9.8 m/s^2) x 0.88 m = 17.36 J

Now we can plug these values back into the formula for power and solve for time:

8.0 W = 17.36 J / Time
Time = 17.36 J / 8.0 W = 2.17 s

Therefore, it takes 2.17 seconds for the motor to lift the object 88 cm. However, since the answer choices are in multiples of 0.225, we can round our answer to the nearest multiple, which is 2.25 s. So the correct answer is b) 2.25 s.

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Diffraction of light, as it is used to describe light, occurs more explicitly when a light wave passes by a corner or via an opening or slit that is physically smaller than the wavelength of that light, if not even smaller.

The intensity pattern that appears on the lit screen is determined by the superposition principle. When the difference in pathways from the two slits to a location on the screen equals an integral number of wavelengths (0,, 2,...), constructive interference takes place.

Light passing through an object causes a little bending known as diffraction. the perimeter of anything. The degree of bending is influenced by the wavelength of light's size in relation to the opening's size.

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Answer:

The positive charges point away from each other

Explanation:

Why?

Arrows point away from the positive charge and toward the

negative charge.

Explanation:

Suppose that you rubbed a balloon with a sample of animal fur such as a wool sweater or even your own hair. The balloon would likely become charged and its charge would exert a strange influence upon other objects in its vicinity. If some small bits of paper were placed upon a table and the balloon were brought near and held above the paper bits, then the presence of the charged balloon might create a sufficient attraction for the paper bits to raise them off the table. This influence - known as an electric force - occurs even when the charged balloon is held some distance away from the paper bits. The electric force is a non-contact force. Any charged object can exert this force upon other objects - both charged and uncharged objects. One goal of this unit of The Physics Classroom is to understand the nature of the electric force. In this part of Lesson 1, two simple and fundamental statements will be made and explained about the nature of the electric force.

Perhaps you have heard it said so many times that it sounds like a cliché.

Opposites attract. And likes repel.

These two fundamental principles of charge interactions will be used throughout the unit to explain the vast array of static electricity phenomena. As mentioned in the previous section of Lesson 1, there are two types of electrically charged objects - those that contain more protons than electrons and are said to be positively charged and those that contain less protons than electrons and are said to be negatively charged. These two types of electrical charges - positive and negative - are said to be opposite types of charge. And consistent with our fundamental principle of charge interaction, a positively charged object will attract a negatively charged object. Oppositely charged objects will exert an attractive influence upon each other. In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object. This repulsive force will push the two objects apart. Similarly, a negatively charged object will exert a repulsive force upon a second negatively charged object. Objects with like charge repel each other.

The activity where to explore the relationships between the electricity field charged with particles and those of the hockey field

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Answer:

hydrogen chloride...........

Net force = 4 N

Direction is right

Answer: 4N right

Explanation:

This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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Answer:

Trait

Explanation:

You already have the right answer chosen.

Answer:

trait

Explanation:

Looks like you already had the right answer