the skin of tabala is tightened to produce shrill sound why​

Answer:

88.2 J (I put 10kg instead of 3kg last time oops)

Explanation:

https://www.calculatorsoup.com/calculators/physics/gravitational-potential.php

Answer:

\(\boxed {\boxed {\sf 88.2 \ Joules}}\)

Explanation:

Potential energy is energy due to position. It is the product of the object's mass, height, and the gravitational acceleration.

\(E_p= m \times \ g \times h\)

The mass of the ball is 3 kilograms and the height is 3 meters. Assuming this is on Earth, the gravitational acceleration is 9.8 meters per square second.

Substitute these values into the formula.

\(E_p= 3 \ kg \times 9.8 \ m/s^2 \times 3 \ m\)

Multiply the first two numbers.

\(E_p=29.4 \ kg*m/s^2 \times 3 \ m\)

Multiply again.

\(E_p= 88.2 \ kg*m^2/s^2\)

\(E_p= 88.2 \ J\)

The ball has 88.2 Joules of potential energy.

The direction of the force vector and acceleration are identical (downwards) during the motion. The simulation also indicates the same relation.

Newton's 2nd regulation, F = ma is a vector equation. It says that the net force (a vector) acting on a mass m (a range of) causes an acceleration (a vector) of the object within the same path as the net force.

A simple mathematical relationship exists between the mass of an item (m), the net force at the item (f) and its acceleration (a). The acceleration of an object is without delay proportional to the net force and indirectly proportional to the item's mass (a = f/m).

For example, displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.

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Answer:

Explanation:

Given:

m = 0.005 g = 5·10⁻⁶ kg

R = 3 m

__________

J - ?

J = m·R² = 5·10⁻⁶·3² ≈ 45·10⁻⁶ kg·m²

Answer:

The snapshot of idleness of given point mass still up in the air by,

Where,

- snapshot of idleness

- mass = 0.005 g = ( 0.005/1000 ) = 5 × 10⁻⁶ kg

- opposite distance = 3 m

Put the qualities in the equation,

Hence; the snapshot of idleness of given point mass is 4.5 × 10⁻⁵ kgm².

To find out about snapshot of idleness,

Explanation:

Snapshots of dormancy can be found by adding or coordinating over each 'piece of mass' that makes up an article, increased by the square of the distance of each 'piece of mass' to the hub. In vital structure the snapshot of latency is I=∫r2dm I = ∫ r 2 d m .

For a planar item, the snapshot of idleness about a hub opposite to the plane is the amount of the snapshots of dormancy of two opposite tomahawks through a similar point in the plane of the article. The utility of this hypothesis goes past that of computing snapshots of rigorously planar items.

Picture result for track down the snapshot of idleness of a mark of mass of 0.005g at an opposite distance of 3m from its hub of revolution.

What is snapshot of inactivity of an empty circle about a hub going through its middle ? Arrangement : 'I = (2)/(3) MR^(2)', where 'M' is the mass and 'R' is sweep of the empty circle.

Answer:...........................

Explanation:.........................................

The minimum coating thickness of the material to minimize reflection at 700 nm will be approximately 0.05 mm.

The minimum coating thickness of a material to minimize reflection depends on various factors such as the refractive index of the material, the wavelength of the incident light, and the angle of incidence of the light.

In general, a thicker coating can provide better reflection control, but it may also increase the cost and weight of the coating. Therefore, the optimal coating thickness will depend on the specific application and trade-offs between reflection control and other factors.

Assuming that the material has a refractive index of 1.5 and the wavelength of interest is 700 nm, the minimum coating thickness can be calculated using the formula:

d = 1 / (n * λ)

where d is the coating thickness, n is the refractive index of the material, and λ is the wavelength of the incident light.

For a wavelength of 700 nm, the minimum coating thickness can be calculated as:

d = 1 / (1.5 * 700) ≈ 0.05 mm

Therefore, the minimum coating thickness of the material to minimize reflection at 700 nm will be approximately 0.05 mm. However, it is important to note that this is only an approximate value and the actual minimum coating thickness may be different depending on the specific material and other factors.  

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Solar energy and terrestrial reradiation are usually measured in units of length called micrometers.

Radiometers are sensors that can be used to measure solar and terrestrial radiation. These sensors detect electromagnetic radiation and convert it into a measurable electrical signal. The energy that the sensor detects can be measured in units of length called micrometers (µm).

One common type of radiometer is a pyranometer, which measures the total amount of incoming solar radiation. Another type of radiometer is a pyrgeometer, which measures the amount of outgoing longwave radiation from the Earth's surface. Both of these sensors measure radiation in units of micrometers.

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The speed of the sound wave after the flash was seen, in the experiment for measuring the speed of sound gun is 110 m/s.

The speed of the sound wave can be determined by applying the principle of echoe as shown below;

v = 2d/t

where;

v = (2 x 715) / (13)

v = 110 m/s

Thus, the speed of the sound wave after the flash was seen, in the experiment for measuring the speed of sound gun is 110 m/s.

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Answer:

insulator

Explanation:

it keeps heat in not moves it

Answer:Pitch.

Explanation:The relative highness or lowness of sounds produced by the human voice is called pitch.

The relative highness or lowness of sounds produced by the human voice is called pitch. Humans have excellent relative pitch and can discriminate between different frequencies, allowing us to identify different musical notes.

The relative highness or lowness of sounds produced by the human voice is called pitch. Pitch is determined by the frequency of the sound waves produced. Humans have excellent relative pitch and can discriminate between different frequencies, allowing us to identify different musical notes.

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Answer:

center of the Earth

Explanation:

So, when the body is at the center there is no need to pull it towards the center anymore. So, acceleration due to gravity is zero at the center of the Earth.

Answer:

so the answer is number one which is A

The integration of x(t) represents the accumulated step changes, while the integration of y(t) represents the accumulated linear increase.

Equations for signals x(t) and y(t) using step and ramp functions:

Let's assume x(t) is a step function and y(t) is a ramp function. The equations for these signals can be written as follows:

x(t) = u(t) (unit step function)

y(t) = r(t) (unit ramp function)

Here, u(t) represents the unit step function and r(t) represents the unit ramp function.

Derivatives of x(t) and y(t) and their equations using δ(t), u(t), and r(t) functions:

The derivative of x(t) and y(t) can be calculated using basic calculus. The derivatives of these signals can be represented using δ(t) (delta function), u(t) (unit step function), and r(t) (unit ramp function).

The derivative of x(t), denoted as x'(t), can be expressed as follows:

x'(t) = δ(t)

The derivative of y(t), denoted as y'(t), can be expressed as follows:

y'(t) = u(t)

Here, δ(t) represents the delta function, which is the derivative of the unit step function, and u(t) represents the unit step function.

The equations for the derivatives of x(t) and y(t) relate to the answers in problem 2 by showing the instantaneous rate of change of the respective signals. The derivative of x(t) (x'(t) = δ(t)) indicates an impulse or spike at t = 0, which can represent a sudden change in the signal. The derivative of y(t) (y'(t) = u(t)) represents a constant non-zero value, indicating a constant increase over time.

Integrals of x(t) and y(t) and their equations:

The integrals of x(t) and y(t) can be determined using integral calculus. The equations for the integrals can be expressed as follows:

∫x(t) dt = ∫u(t) dt = x_integral(t) (integral of the unit step function)

∫y(t) dt = ∫r(t) dt = y_integral(t) (integral of the unit ramp function)

The integration of the unit step function u(t) results in a signal x_integral(t) that represents a step function with a linearly increasing value over time. The integration of the unit ramp function r(t) results in a signal y_integral(t) that represents a quadratic function with increasing values over time.

The equations for the integrals of x(t) and y(t) relate to the answers in problem 2 as they showcase the cumulative effect of the signals over time. The integration of x(t) represents the accumulated step changes, while the integration of y(t) represents the accumulated linear increase.

Sketching the integral iz(t) and derivative dz(t) of the signal z(t):

To provide a response for this part, I would require information about the signal z(t) and the specific time interval shown for the sketch. Please provide additional details about the signal z(t) and the time interval to proceed with sketching the integral iz(t) and derivative dz(t).

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(a) Take into account that the centrifugal force experienced by each car is given by:

where v1 and v2 are the speed of both cars and R1 and R2 are the radius of the curve traveled by each car, m is the mass of the cars.

If you solve for m, you obtain:

due to the masses of the cars are identical, you have:

(b) Now, consider that:

R1 = 2R

v1 = v

R2 = 6R

v2 = 3v

Now, divide the equation for F1 over the equation for F2, replace the previous expressions for the parameters and simplify for F1:

The advantages and disadvantages may vary depending on the specific application, material, and the expertise of the personnel conducting the magnetic particle testing.

Advantages of using the magnetic particle method of defect detection:

Sensitivity to Surface and Near-Surface Defects: Magnetic particle testing is highly sensitive to surface and near-surface defects in ferromagnetic materials. It can detect cracks, fractures, and other discontinuities that may not be easily visible to the  eye.

Rapid and Cost-Effective: Magnetic particle testing is a relatively fast and cost-effective method compared to other non-destructive testing techniques.

Real-Time Results: The method provides immediate results, allowing for real-time defect detection. This enables quick decision-making regarding the acceptability of the tested components or structures, leading to faster production cycles and reduced downtime.

Disadvantages of using the magnetic particle method of defect detection:

Limited to Ferromagnetic Materials: Magnetic particle testing is applicable only to ferromagnetic materials, such as iron, nickel, and their alloys. Non-ferromagnetic materials, such as aluminum or copper, cannot be effectively inspected using this method.

Surface Preparation Requirements: Proper surface preparation is crucial for effective magnetic particle testing. The surface must be cleaned thoroughly to remove dirt, grease, and other contaminants that can interfere with the test results. This additional step may require additional time and effort.

Limited Detection Depth: Magnetic particle testing is primarily suited for detecting surface and near-surface defects. It may not be as effective in detecting deeper or internal defects. Other non-destructive testing methods, such as ultrasonic testing or radiographic testing, may be more appropriate for inspecting components with deeper or internal flaws.

It's important to note that the advantages and disadvantages may vary depending on the specific application, material, and the expertise of the personnel conducting the magnetic particle testing.

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Answer:

The uterus plays a significant part in the pregnancy, menstruation, zygote implantation, conception, labor, and delivery of the baby along with other essential reproductive system organs.

Explanation:

The uterus is a female reproductive organ that is pare shaped and situated between the urinary bladder and the rectum ins the pelvis.  The placenta develops links with the uterine blood vessels that provide the embryo with nutrition through an umbilical cord. When this happens, the uterus delivers signals to the brain to adjust the secretion of the hormone such that releases of more eggs (i.e. ovulation) are halted and the menstrual cycle momentarily stops, thereby verifying the pregnancy. In pregnancy the uterus provides the space and an adequate atmosphere for the fetus to develop safely, it provides feedback to the brain which regulates hormones release. The uterus forms a link between the mother and the baby through the placenta and umbilical cord not only to provide the requisite nutrients and oxygen but also to extract the waste products and purify the blood of the fetus before the fetal organs take over.

Assuming a steady state, the residence time of the substance in the reservoir is 12 years.

The residence time of a substance in a reservoir can be calculated by dividing the mass of the substance in the reservoir by the flux through the reservoir. In this case, the mass of the substance is 60 × 10^6 kg and the flux through the reservoir is 5 × 10^6 kg/annum.

Residence time = Mass of substance in reservoir / Flux through reservoir

Residence time = 60 × 10^6 kg / 5 × 10^6 kg/annum

Residence time = 12 years

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The ball will travel more distance when projected or kicked at an angle of 35 degrees.

The range of the projectile or the horizontal distance traveled by the ball is calculated by applying the following kinematic equation as shown below.

R = ( u² sin (2θ ) ) / g

where;

The horizontal distance traveled by the ball when projected at 35 degrees is calculated as;

R = ( 13.9² x sin ( 2 x 35 ) ) / ( 9.8 )

R = 18.53 m

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The speed of the bullet was approximately 117.6 m/s.

\(m_bullet * v_bullet = (m_{block} + m_{bullet}) * v_{final}\)

\(W_{friction}\) = (1/2) * (\(m_{block} + m_{bullet}\)) \(v_{final}\)²

Solving for v_bullet, we get:

\(v_{bullet}\) =  \(\sqrt{\frac{(2 * g * mu_k * d * m_block)}{(m_bullet * (m_block + m_bullet)} }\))]

Substituting the given values, we get:

\(v_{bullet}\)  \(= \sqrt{\frac{(2 * 9.81 * 0.20 * 0.18 * 10)}{(0.01 * (10 + 0.01))} }\)

\(v_{bullet}\)= 117.6 m/s (rounded to one decimal place)

Speed is the rate at which an object moves, usually measured in units of distance traveled per unit of time, such as meters per second or miles per hour. It is a fundamental concept in physics and plays a critical role in many fields, including engineering, transportation, sports, and science. The distance an object travels divided by the time it takes to travel that distance will give its speed. The faster an object travels, the greater its speed, and the longer it takes to travel a given distance, the lower its speed.

It is different from velocity, which is a vector quantity that includes both magnitude and direction. For example, a car may be traveling at a speed of 60 miles per hour, but its velocity will depend on its direction of travel. The concept of speed is closely related to distance and time, which are the two fundamental components of its definition.

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Heat flows from hot to cold on its own spontaneity. Temperature is used to measure how hot or cold an object is in relation to its reference point.

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Answer: D

Explanation:

It is at organ level because the kidney is an organ

Answer: 35

Explanation:

Given the following :

M = 0.5 kg

Power of heater = 100W

From the graph ;

Time (t) = 7seconds

Change in temperature(Dt) = t2 - t1

Where t2 = 70°C, t1 = 30°C

Dt = (70 - 30)°C = 40°C

Recall Q = iVt

IV = power

Q = mcDt

c = specific heat capacity of liquid

mcDt = ivt

mcDt = power × t

0.5 × c × 40°C = 100 × 7

20°C × c = 700 J

c = 700 J/ 20°C

c = 35 J / kg°C

The steam engine moves a piston back and forth inside a cylinder using the force created by the pressure of the steam. A connecting rod and crank can convert this pushing force into a rotational force for wo

Because electric and diesel locomotives are faster, more effective, and simpler to operate, steam locomotives are no longer utilized to transport people or goods. The locomotives that are still in operation are historical artifacts from the 1800s that serve as a great reminder of how far we've come.

Simply explained, steam engines generate heat energy by boiling water and producing steam using fire and coal (chemical energy). This heat energy is then used to push the cylinder and piston, which in turn moves the wheels (kinetic).

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Answer:

D. Solution

Explanation:

Sugar dissolved in water is an example of solution.

A solution is a homogenous mixture of solutes and solvents.

In a solution the solute particles ae distributed uniformly in the solvents. The solute is the substance and it is the sugar here that is dissolved to make a solution.

The solvent is the water in this instance that helps to dissolve the solute.

Answer:

D. Solution

Explanation:

Dissolving sugar in water is an example of a physical change. Here's why:

A chemical change produces new chemical products. In order for sugar in water to be a chemical change, something new would need to result.

Answer:

7 m/s^2

Explanation:

Given that the jet is traveling 37.6 m/s when the pilot receives the message. 

And it takes the pilot 5.37 s to bring the plane to a halt.

Acceleration of the plane can be calculated by using first equation of motion

V = U - at

Since the plane is going to stop, the final velocity V = zero.

And the acceleration will be negative

Substitute all the parameters into the formula

0 = 37.6 - 5.37a

5.37a = 37.6

Make a the subject of formula

a = 37.6 / 5.37

a = 7.0 m/s^2

Therefore, the acceleration of the plane to bring the plane to a halt is 7 m/s^2

Explanation why a decrease in CFC emissions did not result in an immediate increase in the concentration of stratospheric ozone CFC (chlorofluorocarbon) is a stable chemical compound that remains in the atmosphere for a long period of time. Therefore, even if the production of CFC were to be stopped, the concentration of the compound in the atmosphere would continue to exist for years.

The halogenated chemicals that damage the ozone layer are known to have long atmospheric lifetimes; they remain in the atmosphere for several years to decades. Therefore, even if humans stopped producing all ozone-depleting chemicals tomorrow, the stratospheric ozone layer would continue to be affected for many years. Predicting how the levels of stratospheric ozone are expected to change in the coming decades CFCs (chlorofluorocarbons) are synthetic organic chemicals made of carbon, chlorine, and fluorine. They are used in various applications such as refrigeration, air conditioning, and aerosols. If current trends continue, CFC levels are expected to decrease in the coming decades, and stratospheric ozone concentrations are expected to increase.

However, other factors, such as climate change, can also impact the concentration of ozone in the stratosphere. Greenhouse gases such as CO2, CH4, and N2O emitted into the atmosphere as a result of human activities can increase temperatures in the troposphere and decrease temperatures in the stratosphere. The temperature drop in the stratosphere is a result of the greenhouse gases trapped in the atmosphere, which in turn increases the concentration of polar stratospheric clouds. These clouds can act as surfaces for chemical reactions, which deplete the ozone layer. As a result, even if CFC levels decrease, stratospheric ozone concentrations may not increase if these other factors are not addressed.

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Answer:

c

Explanation: