what is the function of the three small bones in the ear? they convert airwaves into waves in the fluid of the choclea they spread out the air waves over an area of larger diameter they change the frequency of air waves into lower frequencies that can be heard they hold the tympanic membrane in place

At 21.6 m/s2, the wheel is speeding up angularly. In the case of a wheel with a radius of 0.15 m, the wheel starts out at rest and after 4 seconds, it has reached an angular speed of 12 rad/s.

In physics, angular acceleration refers to how quickly angular velocity changes over time. Since spin angular velocity and orbital angular velocity are two different forms of angular velocity, respectively, there are two different types of angular acceleration. Spin angular acceleration and orbital angular acceleration are the names for these. Angular speed is defined as the pace at which the angular displacement changes. Angular speed is measured in radian per second. The same equation can be used to define both angle speed and angle velocity.

angular acceleration = (12*12)*0.15 = 21.6 m/s^2

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The probability that a student takes both Algebra 2 and Chemistry is 1.36%.

To find the probability that a student takes both Algebra 2 and Chemistry, you need to multiply the probability of taking Algebra 2 (8%) by the probability of taking Chemistry given they are taking Algebra 2 (17%).

1. Convert the percentages to decimals: 8% = 0.08, 17% = 0.17
2. Multiply the probabilities: 0.08 * 0.17 = 0.0136
3. Convert back to a percentage: 0.0136 * 100 = 1.36%

So, the probability that a student takes both Algebra 2 and Chemistry is 1.36%.

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Answer:

2000

Explanation:

ddoes rest : add the components

If the time is doubled to reach the same final velocity, then the acceleration will be half the acceleration before.

The rate of change of an object's velocity with respect to time is defined as acceleration. Vector quantities are accelerations.

Let's assume the final and the initial velocity of the object is v and u, respectively. Also, the time it takes is represented by t. Therefore, the acceleration can be written as,

a₁ = (v-u)/t

Now, if the time is doubled then the acceleration can be written as,

a₂ = (v-u)/2t

    = (1/2) × [(v-u)/t]

    = 0.5 × a₁

a₂ = 0.5a₁

Hence, If the time is doubled to reach the same final velocity, then the acceleration will be half the acceleration before.

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a. The initial velocity of the pumpkin is approximately 63.44 feet per second. b. The total time that the pumpkin is in the air is approximately 8 seconds.

a. To calculate the initial velocity of the pumpkin, we can use the kinematic equation for projectile motion:

s = ut + (1/2)gt^2

Where:

s = distance traveled (400 feet)

u = initial velocity (unknown)

t = time of flight (unknown)

acceleration due to gravity (g) = 32.2 ft/s^2)

Equation to solve for u:

u = (s - (1/2)gt^2) / t

Substituting the given values, we have:

u = (400 ft - (1/2)(32.2 ft/s^2)(8 s)^2) / 8 s

u ≈ 63.44 ft/s

b. The total time that the pumpkin is in the air can be determined using the equation:

t = 2u / g

Substituting the values, we get:

t = 2(63.44 ft/s) / (32.2 ft/s^2)

t ≈ 8 s

a. The initial velocity of the pumpkin is approximately 63.44 feet per second.

b. The total time that the pumpkin is in the air is approximately 8 seconds.

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Answer:

Neither.

Explanation:

After 10 seconds the object will have travelled 490.5m, not 98.1. The vertical distance covered in freefall by an object in time t is given by Distance= 1/2 x 9.81 x t^2. Simply multiplying 9.81 by the time will NOT give the distance covered.

The acceleration of the object will not change, it will always be 9.81 m/s^2. Its speed will keep increasing by 9.81 m/s every second, thats what the ‘per second squared*’ means. The speed after 10 seconds will be 98.1 m/s

To summarise, after 10 seconds, the object will have covered 490.5 metres, and it will have a final speed of 98.1 m/s. It’s acceleration will remain 9.81 m/s^2 at all times

The term "RAD" in physics means radiation absorbed dose (option D).

Radiation absorbed dose is one of the two units used to measure the amount of radiation absorbed by an object or person.

RAD reflects the amount of energy that radioactive sources deposit in materials through which they pass.

The radiation-absorbed dose (rad) is the amount of energy (from any type of ionizing radiation) deposited in any medium (e.g., water, tissue, air).

An absorbed dose of 1 rad means that 1 gram of material absorbed 100 ergs of energy (a small but measurable amount) as a result of exposure to radiation.

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The purpose of this lab is to investigate and understand the processes and factors involved in the formation of the solar system.

By conducting experiments and analyzing data, we aim to gain insights into the origin of our planetary system, including the formation of the Sun, planets, moons, asteroids, and comets.

Through this lab, we seek to explore various theories and models proposed by scientists to explain the formation of the solar system. This involves studying concepts such as the nebular hypothesis, accretion, gravitational collapse, and planetary differentiation.

By conducting experiments and simulations, we can recreate some of the conditions that existed during the early stages of the solar system's formation and observe the outcomes.

Additionally, this lab allows us to understand the composition, structure, and dynamics of the solar system through the analysis of meteorites, lunar samples, and remote sensing data from space missions.

By examining these samples and data, we can draw conclusions about the processes that occurred billions of years ago, shedding light on the formation and evolution of our cosmic neighborhood.

Ultimately, the goal of this lab is to provide a deeper understanding of the origins of our solar system, enabling us to comprehend the broader context of our existence and the unique characteristics of our celestial surroundings.

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The difference between longitudinal and transverse waves is with respect to their mediums.

Transverse waves and longitudinal waves are two different forms of waves that differ in the direction that the medium is moving. When the medium's vibration is parallel to the wave direction, a transverse wave is produced. At a right angle to the wave's direction of travel, amplitude is recorded. When the medium being employed vibrates parallel to direction of wave, longitudinal waves are produced.

Amplitude is measured at a zero-degree angle to the wave's travel direction. Transverse waves include crests and troughs, whereas longitudinal waves have compressions and rarefactions. While longitudinal waves can move through fluids like liquids and gases, transverse waves need a relatively rigid medium to do so.

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Answer:

\(40\:\mathrm{m}\)

Explanation:

We can use kinematics equation \(\Delta y={v_i}^2+\frac{1}{2}at^2\) to solve this problem. Because the metal ball's initial velocity was 0, \({v_i}^2=0\).

Therefore, our equation becomes:

\(\Delta y=\frac{1}{2}at^2\) (freefall equation).

\(t\) is given as 3 seconds and \(a\) is acceleration due to gravity (\(9.81\:\mathrm{m/s}\)).

Therefore, our answer is:

\(\Delta y = \frac{1}{2}\cdot9.81\cdot3^2=44.145=\fbox{$40\:\mathrm{m}$}\) (one significant figure).

Answer:

What happens when you throw a basketball up

toward the hoop? If you are lucky, the ball sinks

into the net, scoring two points before dropping

back down to the ground. The basketball isn’t

that heavy, so why doesn’t it stay up in the air

saying, “What comes up must come down”?

This saying is a simple explanation for what

causes the basketball to fall back to the ground.

It is being acted on by an invisible force called

gravity, which is the basic force in the universe

that attracts all objects to each other.

1 Gravity has existed since the beginning of the universe. It is hard to understand how or why it

works, but we know it is always there because it holds everything in the universe in place. First,

you need to understand that there is a gravitational attraction between you and Earth, between

Earth and the Moon, and between Earth and the Sun. Even though you can’t feel it, the

gravitational attraction between you and Earth is what keeps your feet planted firmly on the

ground. Imagine spinning around and around on a merry-go-round. As long as you are holding

on, then you stay on the merry-go-round, but if you ever let go, you will fly off and land on the

ground. This is a useful analogy in visualizing the gravitational attraction between Earth and

you. Earth is spinning on its axis and thanks to gravity, you are held to your position on Eart

rather than flying out into space. Explanation: this is what i can do!:)

Answer:

I believe gravity is the most important aspect of our universe. Without it we would all be floating off into the universe. There wouldn’t be any orbits; instead, all planetary bodies would simply float around, running into each other when they crossed paths and just wandering forever.

Explanation:

this is the best match

Answer i know they both exhibit the doppler effect, so i believe it is this one.

Explanation:

The celestial objects correctly listed in order from the smallest mass to the largest mass are:

The celestial objects have a wide variety of shapes and masses. Based on some scientific equations, the average mass of different celestial objects is stated as below:

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The rank of the terrestrial planets based on their expected cooling rates, from fastest cooling to slowest cooling is as follows -

mercury , Mars, Venus, Earth

Mercury - It is the smallest terrestrial planet in the solar system. It has a thin atmosphere, which causes it to swing between burning and freezing temperatures.

Mars - It is less dense than Earth and has a smaller magnetic field, which is a indication of a solid core rather than a liquid one. Mars is known to have water ice and organics- some of the ingredients for living things.

Venus - It is about the same size as Earth and has a thick, toxic carbon-monoxide (CO) dominated atmosphere that traps heat, making it the hottest planet in the solar system.

Earth - Out of the four terrestrial planets, Earth is the largest and has regular seasons for much of it surface; regions closer to the equator tend to stay warm, while spots closer to the poles are cooler and in the winter, icy.

Therefore, the cooling rate of terrestrial planets is Mars, Earth, Venus, Mercury

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Answer:

when there is uniform velocity the acceleration of a body is zero

Answer:

How long would it take a machine to do 13,000 joules of work if the power rating ... An object gains 15 joules of potential energy as it is lifted vertically 5.0 meters. ... As the time required to do a given quantity of work decreases, the power ... How much work is being done to the system by the person of the sled moves 10 m?

Answer:

1.An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.

3.Let speed of balls are v

1

and v

2

.

There is no external force acting, momentum will be conserved.

m

1

u

1

+m

2

u

2

=m

1

v

1

+m

2

v

2

⇒m×6−m×6=mv

1

+mv

2

⇒v

1

=−v

2

Coefficient , e=−

u

1

−u

2

v

1

−v

2

⇒

3

1

=−

6+6

v

1

−v

2

⇒v

1

=−2m/sWhen two objects with the same mass collide, Newton's laws tell us that they will accelerate the same amount but in opposite directions.

Collision Forces - 5/5

1. A) Motion will be either created, stopped or changed.

2. D) 5,208 N

3. B) the mass and acceleration of each person

4. C) balanced forces

5. B) 13.125 N to the right

Hope this helps ya out peeps!

Answer:

Your answer would be letter B. Electrons orbit the nucleus in energy level.

Explanation:

Hope it helps..

Just correct me if I'm wrong, okay?

But ur welcome!!

(;ŏ﹏ŏ)(◕ᴗ◕✿)

Answer:

B

Explanation:

Dalton's 4 principles did not involve discussion of the electrons or their orbits.

Answer:

The atomic number is typically located above the element symbol. ... The atomic mass number is equal to the number of protons plus neutrons, which provides the average weight of all isotopes of any given element. This number is typically found beneath the element symbol.

Explanation:

The periodic table is the systematic arrangement of the elements in the increasing order of their atomic number.

The periodic table is the organized arrangement of all the elements, arranged in the increasing order of their atomic numbers.

The elements are grouped into the s-block, p-block, d-block and the f-block elements in the periodic table.

The atomic number is typically located above the element symbol. The atomic mass number is equal to the number of protons plus neutrons,

which provides the average weight of all isotopes of any given element. This number is typically found beneath the element symbol.

Thus the periodic table is the systematic arrangement of the elements in the increasing order of their atomic number.

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The first-order maximum for 450-nm wavelength blue light falling on double slits separated by 0.0500 mm is approximately 6.2°.

The angle of the first-order maximum refers to the angle at which the brightest interference pattern appears on a screen placed behind two closely spaced slits when illuminated with the blue light of 450-nm wavelength.

The angle is determined by the equation:

theta_m = (m*lambda)/d

where m is the order, lambda is the wavelength, and d is the slit separation.
theta_m = (1*450E-9 m)/0.0500 mm
theta_m = 6.2°

Thus, the first-order maximum for double slits of 0.0500 mm at 450 nm λ blue light is around 6.2°.

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Given average acceleration is 3.2 m/s². Let's determine the time of acceleration down the runway before the plane lifts off.

We use the kinematic equation given below to find time of acceleration: v = u + atWhere v = final velocityu = initial velocitya = accelerationt = time elapsedIt is given that the initial velocity of the plane is zero (u = 0) and the acceleration is 3.2 m/s² (a = 3.2 m/s²). The velocity at the moment the plane lifts off (v) is not provided.To find the time of acceleration, we can rearrange the equation above as shown below:t = (v - u) / aIn this case, since the initial velocity u is zero, the equation reduces to:t = v / aWe need to determine the value of v. We know that when the plane lifts off, the velocity is equal to the takeoff speed (VTO). In this case, the takeoff speed is not provided. However, we can use the formula below to find the takeoff speed:VTO = √(2gh)where g = acceleration due to gravity (9.81 m/s²) and h = height of the plane at takeoff (not provided).Since we do not know the height of the plane at takeoff, we cannot use this formula to find the takeoff speed. Therefore, we cannot find the time of acceleration down the runway.

In conclusion, the time of acceleration down the runway before the plane lifts off cannot be determined since we do not know the takeoff speed or the height of the plane at takeoff.

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Answer:

The law of gravity

Explanation:

If the current is clockwise around the outside edge of the page and a uniform magnetic field is directed parallel to the page from left to right, the magnetic force will exert a torque on the page.

According to the right-hand rule, the direction of the torque will be perpendicular to both the current direction and the magnetic field direction. In this case, the torque will be directed into the page, causing the page to rotate clockwise. Therefore, the right edge of the page will move towards you. So, the correct answer is moves toward you.

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The resistance of a circuit that contains two 50.0 Ω resistors connected in series with a 12.0 V battery is 100 Ω. The resistance of the circuit is equal to the sum of the individual resistors when they are connected in series.

In this case, two 50.0 Ω resistors are connected in series, resulting in a total resistance of 100 Ω. Resistance can be defined as the obstruction that electricity faces when it travels through a conductor. The greater the resistance, the less current is allowed to flow through the circuit. The following equation is used to calculate resistance: R = V / IWhere R is resistance, V is voltage, and I is current.

Resistance can also be calculated using Ohm's Law if we know the values of voltage and current. When resistors are connected in series, the total resistance of the circuit is equal to the sum of the individual resistors. This is expressed by the following equation:RT = R1 + R2 + ... + RNWhere RT is the total resistance of the circuit, and R1, R2, and RN are the individual resistors. In this case, the circuit contains two 50.0 Ω resistors connected in series.

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Answer:

240N

Explanation:

The formula for force is F=mass×acceleration.

Therefore, Force= 120×2= 240N

The scientist responsible for the modern periodic table that we study today is Dmitri Mendeleev. Mendeleev was a Russian chemist who lived in the 19th century. He is often credited as the creator of the periodic table because of his significant contributions to its development.

In the mid-1860s, Mendeleev was working on organizing the known elements based on their chemical properties. He noticed that there was a recurring pattern in the properties of the elements when they were arranged in order of increasing atomic mass. Mendeleev proposed that these elements could be arranged in a table format, where elements with similar properties would fall into the same groups or columns.

Mendeleev's breakthrough came when he realized that there were some gaps or missing elements in his proposed table. Instead of discarding these gaps, he made a bold move and predicted the existence and properties of the yet-to-be-discovered elements. He left spaces for these elements, specifying their properties based on the patterns he observed.

What made Mendeleev's periodic table significant was that it not only organized the elements based on their atomic masses but also successfully predicted the properties of the missing elements. Over time, his predictions were proven correct when the missing elements were discovered and found to match Mendeleev's descriptions.

Mendeleev's periodic table formed the foundation for the modern periodic table that we use today. Although there have been some modifications and improvements to the table since Mendeleev's time, his work laid the groundwork for understanding the periodicity and organizing the elements based on their properties. His contributions to the field of chemistry and the development of the periodic table have had a lasting impact on our understanding of the elements and their relationships.

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You are using 5 different temperature for one bacterium in the temperature effect exercise in an order to determine the Answer is thermal death point

Thermal death point (TDP) of bacteria is basically the study of effect of heat on the growth of bacteria. In simple terms it is the time needed to kill bacteria in a medium of liquid culture at a particular teperature.

So, the basic procedure is Requirements

Sample: Bacterial sample

Others: Nutrient agar plates, Inoculating loops, Incubator

Procedure

Take two nutrient agar plate and divide it into five quadrants. On each quadrant assign time like 0.15sec, 2min, 5min, 15min. This time will depict at particular temperature for how much time the organism was heated. Now take your sample culture that were heated in different temperatures. Under proper aspetic conditions, with the help of an inoculating loop streak the culture on each part of the quadrant. Incubate the plates at 37 degrees centigrade.

Based on the growth of the bacteria the thermal death point can be estimated. The quadrant in which there is no growth is the temperature and the time required to destroy the bacteria.

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Complete Question

You are using 5 different temperatures for one bacterium in the temperature effects exercise in order to determine the 2.

Multiple Choice

a- thermal death point

b- Benaturation time

c-  decimal education value

d-othermal death time

Given :

Speed of automobile for first 55 km , \(v_1=20\ km/h\) .

Speed of automobile for first 60 km , \(v_2=55\ km/h\) .

To Find :

Average velocity of the full trip .

Solution :

We know , average velocity is given by :

\(v_{avg}=\dfrac{\text{Total distance covered}}{\text{Total time taken }}\)

Now , time is given by :

\(T=\dfrac{D}{v}\)

So ,

\(v_{avg}=\dfrac{55+60}{\dfrac{55}{20}+\dfrac{60}{55}}\\\\v_{avg}=29.94\ km/h\)

Therefore , the average velocity (km/h) of the car during the full 115 km trip is 29.94 km/h .

Hence , this is the required solution .

Answer:

a.  Frequency is 5.45 x 10^14 hz

b.   The period = 1.8 x 10^-15 sec  {or 1.8 femptoseconds]

Explanation:

The velocity of an electromagnetic wave is given by the product of the wave's frequency(f) times its wavelength(λ).  

V = λ f     where,

V is the wave speed,

f is the wave frequency,

λ is the wavelength.

To find frequency, rearrange to:

f = V/ λ

Light travels at 3.00x10^8 m/sec.

λ is 5.50 x 10^-7 m

f = (3.00x10^8 m/sec)/(5.50 x 10^-7 m)  meters cancels, secs is on the bottom]

f = (3.00/5.50)*(10^15)  [The base 10 exponent on the bottom ius subtracted from the one on top:  98-(-7)) = 15)  

f = 0.545 x 10^15 1/s or hz

f = 5.45 x 10^14 hz

b.  The period of a wave is the inverse of it's frequesncy.  It is the time it takes for 1 wave to pass.  Invert the frequency:

 Period = 1/f

  Period =  1/(0.545 x 10^15 1/s)

Period = 1.8 x 10^-15 sec  {or 1.8 femptoseconds]

Answer:

1 - b

2 - e

3 - d

4 - a

5 - c