hyrum is at a concert when a flute player hits a very high note at the end of a song. which of the following best explains why the pitch of the note sounds so high? responses it has a long wavelength and high frequency. it has a long wavelength and high frequency. it has a short wavelength and high frequency. it has a short wavelength and high frequency. it has a long wavelength and low frequency. it has a long wavelength and low frequency. it has a large amplitude. it has a large amplitude. it has a small amplitude.

The accelaration is 15 ms.

Acceleration (a) is the reason that  change in velocity (Δv) over to the change in time (Δt).

represented by the equation to  a = Δv/Δt. This allows you to measure how fast velocity by the  changes in meters per second squared (m/s^2).

1 . Here the change in to the  velocity is (50-20) or 30 m/s

And the time interval by to  the 5

So acceleration is 30/5 or 6 ms^-2

2. Here the change is the  (40-10) or 30 m/s in time is the  interval is 2 second

So acceleration is 30/2 or 15 ms^-2.

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96.640625 ft high will the ball go .

Calculation :

The distance of the ball in feet is given by the equation

s(t) = -16t²+77t+4

To calculate max height find derivative of s

s'(t) =-32t+77

equate to 0

t  = 77/32 = 2.40625 sec

------------------------------------------------------------

Max height = -16(2.4)²+77(2.4) + 4

= 96.640625 ft

Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time (e.g. 60 km/h northbound). Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies.

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1). For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector.

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The passage of ions through a potential difference V accelerates them. Parallel plates are connected by a voltage, and tiny amounts of ions are then injected into the space between them, close to the plate that already has a charge of the same sign as the ions.

Using a bending magnet, the magnetic sector mass spectrometers: The ions or atoms are forced to bend when they enter the magnet, and the light ions bend more sharply than the heavy ions. As a result, they are separated into a spectrum, like a rainbow.

Dempster's spectrometer only used a magnetic field to deflect the ion beam in a 180° arc. In Dempster's device, an ion beam that was homogeneous in mass and energy but diverging from a slit could be brought to a direction focus.

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Answer:

Below

Explanation:

I  believe that equation is   v = sqrt ( 19.6 h )      

 when h = 21 :

    v = sqrt (19.6  * 21) = 20.3 m/s

Angle with the vertical will be made by the loosely hanging hand straps is 13 degrees.

A string attached to an object can also exert a force but only if the string is pulled taut, and only in the direction of the string. This force is called tension.

We usually make the approximation that the string is massless and unstretchable, so we don’t need to worry about it sagging in the middle or about its length changing, our strings which we consider in questions are also usually unbreakable.

The force transmitted through a string, rope, cable, or wire that is pulled tight. The rope pulls with a tension force on both objects.

For examples, A box hangs from the ceiling by a cable. The cable exerts an upward tension force on the box. A dog is pulled by a dog chain. The chain exerts a force upon the dog.

Given,

V=13km/h = 4.4 m/s

TsinФ = mv^2/R------(1)

TcosФ = mg-------(2)

Divide (1) by (2)

tanФ = v^2/Rg

Ф = tan ^-1(4.4*4.4)/8.50*9.80

Ф = 13 degrees.

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Electron are basically discrete particles.

Electron is a type of particles that from all atoms.

Discrete orbits are those of  orbits where electrons to  remain stable. As long as, electrons remain in these are  orbits, they do not radiate by  energy. Discrete orbits are also known as energy shells and energy levels.

Quantization of orbital by the energy is caused by to the  wave nature of matter. Allowed orbits in atoms by  occur for constructively interference of electrons in to the orbit, requiring is an integral number of to the  wavelengths to fit in to the  orbit's circumference; that of  is, nλn=2πrn(n=1,2,3,...), where λn is the electron's to through the de Broglie wavelength.

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Both the balls hit the ground at the same time.

A body is said to be in freefall when it only moves in relation to the Earth's gravity. An external force exerted on the ball will cause its motion to accelerate. Gravitational acceleration is another name for this rate of free fall.

Due to the fact that the horizontally thrown ball's vertical motion is fully independent of its horizontal motion, both will strike the ground at the same time. As a result, both balls appear to be dropped and descending vertically at the same time in terms of vertical motion.

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The speed of the water leaving the end of the hose is 47.2 cm/sec means that the water is flowing with a distance of 47.2 cm in one second.

The rate of change of position of an object in any direction is called speed. Speed is measured as the ratio of distance to the time in which the distance was covered.

Speed is a scalar quantity as it has only direction and no magnitude. Dimensional formula of Distance = M0L1T-1

There are four types of speed and they are, Uniform speed, Variable speed, Average speed, Instantaneous speed. The invention of the calculus supplied the mathematical rigor to the above definition, and the final solution to the problem of the measurement of motion.

Given,

Radius=  0.0137 m

Area = π*(0.0137)^2 = 0.00058935 m^2

                                 = 5.89 cm^2

volume filled in 3 sec = 25 L

Rate = 25/3 = 8.33 cm^3/sec

Rate=area*velocity(v)

v = 8.33*1000/5.89

v = 47.2 cm/sec

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It is supposed to be replicated by another researcher and provide similar results  predict future behaviors  proves the research hypothesis.

This is because, an experiment is considered reliable if different researchers repeats it and even then get the same or a similar answer over and over again. So, it suggests that the experiment is reliable, when it tends to give the same result when other researchers repeat the entire experiment.

An explanation for a phenomenon is offered in the form of a hypothesis, or hypotheses. According to the scientific method, a hypothesis must be testable in order to qualify as a scientific hypothesis. Typically, scientists base their hypotheses on prior observations that leave room for doubt on the validity of the existing body of knowledge. A scientific theory is different from a scientific hypothesis, despite the fact that the terms "hypothesis" and "theory" are frequently used interchangeably. In a process that starts with an educated guess or notion, a working hypothesis is a hypothesis that has been accepted provisionally and is offered for additional study.

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A mass-containing crate must stop with a net effort of 24.63 joules.

When a physical influence called force is imparted to an item, the object accelerates in the direction the force was applied from. The amount of matter that makes up an object is expressed by its mass, which is expressed in kilograms. The rate at which an object's velocity along the same straight line as the unbalanced force changes is known as its acceleration.

Force and Mass

According to the question,

Mass, m = 72 kg

Speed, v = 1.89 m/s

Acceleration due to gravity, g = 9.8

We know,

The force, F = mg

By substituting the values,

       = 72×1.89

      = 136.08 N

By using Equation of motion,

v² = u² + 2gS

(1.89)² = 0 + 2ₓ 9.81 S

3.57 = 19.62 S

S = 3.57 / 19.62

S = 0.181 m

hence,

The work done (W) will be:

= F × S

= 136.08 ₓ 0.181

= 24.63 joule

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The average flow-rate of gasoline in cm³/s is 2.78 cm³/s to start the engine while travelling at 100 km/h.

In order to decide the Flow Rate represented as Q, we have to outline each the quantity V and the factor in time it's far flowing beyond represented through t, or Q = V/t. Additionally Flow price and pace are associated through the equation Q = Av wherein A is the cross-sectional vicinity of glide and v is its common pace.

Flow is the quantity of fluid that passes in a unit of time. In water resources, glide is regularly measured in gadgets of cubic toes consistent with second (cfs), cubic meters consistent with second (cms), gallons consistent with minute (gpm), or different numerous gadgets.

From the question : Q = v/A'.................... Equation 1

Where Q = Average flow rate, A' = inverse of Area, v = velocity of the car.

Given: v = 100 km/h, A' = 10 km/L

Substitute this value into equation 1

Q = 100/10

Q = 10 L/h.

Now, we convert L/h to cm³/s.

Since,

1 L = 1000 cm³, and

1 h = 3600 s

Therefore,

Q = 10(1000/3600) cm³/s

Q = 2.78 cm³/s

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Option B; When hydrogen is fused into helium, energy is released from conversion of matter to light energy.

In order for different types of light to be visible to human eyes, light energy must be converted into a different kind of kinetic energy. A heated object such as a laser, a lightbulb, or the sun emits light, which is an electromagnetic radiation.

Photons are little energy packets that are present in light. Photons are created when the atoms of an object are heated; this is the way photons are created. The heat excites the electrons, who then get additional energy as a result. As the substance gets hotter, more photons emerge as the energy is released in the form of a photon.

The way that light moves as it moves is as a wave. The need to transport energy is necessary regardless of the situation.

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So, the equilibrium temperature after the first object mixed with second object is approximately 53.3°C.

Hi! I will help you to solve Black's Principle. Black's Principle state that the heat absorbed by one object is always similar to the heat released by another. So, these objects will transfer heat into each other until they reach an equilibrium temperature. Usually, Black's principle used to find the equilibrium temperature after the interaction of two objects with the same masses but different types, with the same type but different masses, or different types and masses. The type of objects will affect the heat absorbed or released because each type has its specific heat characteristics (c).

So, mathematically Black's Principle can be expressed in the following equation:

[tex] \sf{\bold{Q_1 = Q_2}}[/tex]

[tex] \boxed{\sf{\bold{m_1 \cdot c_1 \cdot (T_1-T') = m_2 \cdot c_2 \cdot (T'-T_2)}}}[/tex]

With the following condition:

[tex] \sf{m_1 \cdot c_1 \cdot (T_1-T')= m_2 \cdot c_2 \cdot (T'-T_2)}[/tex]

[tex] \sf{1 \cdot \cancel c \cdot (80-T')= 2 \cdot \cancel c \cdot (T'-40)}[/tex]

[tex] \sf{80 - T'= 2T' - 80}[/tex]

[tex] \sf{-3T'= -160}[/tex]

[tex] \sf{T'= \frac{-160}{-3}}[/tex]

[tex] \sf{\bold{T' \approx 53.3^\circ C}}[/tex]

So, the equilibrium temperature after the first object mixed with second object is approximately 53.3°C.

The following kelvin temperatures to the Celsius and Fahrenheit scales:

[°F] = [K] × 9/5 - 459.67

[°C] = [K] -273

A) 400k

F = 260.33

C = 127

B) 95 k

F= -288.67

C = -178

C) 1.55*10^7K

F = 2.79 *10^7

C = 1.55*10^7

The Fahrenheit scale was first proposed by German physicist Daniel Gabriel Fahrenheit in 1724. Using a tube filled with mercury or alcohol, Fahrenheit used his three points to determine the scale. He set the point where water, ice, and ammonium chloride (a salt) are stable at his 0°F.

The Celsius scale or Celsius scale is a temperature scale based on the freezing point of water at 0°C and the boiling point of water at 100°C. The Fahrenheit scale is a temperature scale based on the freezing point of water at 32°F and the boiling point of water at 212°F. Fahrenheit is used primarily in the United States, while Celsius is used worldwide.

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The acceleration of the truck is 0.85 m/s².

The acceleration of the truck in vector form is → 0.85 m/s²

The acceleration of the truck is determined as follows;

Acceleration = Total force/mass of truck

The total force acting on the truck is the net force

The net force = mg sinθ

where

θ is the angle = 5°

Net force = 3000 * 9.8 * sin 5°

Net force = 2562.4 N

Acceleration = 2562.4 / 3000

Acceleration =  0.85 m/s²

The vector form of the acceleration will be → 0.85 m/s².

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The horizontal and vertical components of the velocity are 41.1 m/s and  389 m/s respectively.

The initial velocity of the projectile = 40.9 m/s

The angle of elevation = 6°

The horizontal and vertical components of the velocity can be found using the formula,

                 Horizontal component, cosθ = v/vₓ

                 Vertical component , sinθ = v/vₙ

where θ is the angle of the elevation

           v is the initial velocity

           vₓ and vₙ are horizontal and vertical components of the velocity respectively.

Let us substitute the known values in the above equation. We get

Horizontal component:

                  cos 6° = v / vₓ

                     0.961 = 40.9 / vₓ

                        vₓ = 40.9/0.995

                            = 41.1 m/s

Vertical component

                   sin 6° = 40.9 / vₙ

                  0.105  = 40.9 / vₙ

                         vₙ = 40.9 / 0.105

                             = 389 m/s

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Ampere. A ____ is one thousandth of an amp. the current utilized for face and scalp treatments is measured in milliamperes.

The electrical potential difference is measured in volts. The force that propels electrons across an electrical circuit to create an electric charge that is measured in amperes is another way to define volt. Amperes are units used to quantify electric current, or even the number of electrons moving across a circuit.

He developed the astatic needle, an indispensable facet of the contemporary astatis galvanometer, that was the first to show that a magnetic field is produced when parallel wires are electrically charged. He is usually acknowledged as the first to develop electromagnetic.

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The period of oscillation of the pendulum is: 3.51 sec

The process of any quantity or measure fluctuating repeatedly about its equilibrium value in time is known as oscillation. A periodic change in a substance's value between two values or around its central value is another way to describe oscillation.

Given that,

l = 5.26 m

Moment of inertia (I) = ml²/12 + m(l/4)²

= ml²/12 + m(l²/16)

= 7 ml²/48

Thus, torque (τ):

or, Mg sinθ × (l/4) = I × α

or, Mg sinθ × (l/4) = (7 ml²/48) × α

or, sin θ = - (7l/129) × α

or, θ = - (7l/129) × α    [ As, sinθ ≈ θ]

Thus, ω² = 129 / 7l

Now, T = 2π/ω

or, T =  2π [tex]\sqrt{7l/129}[/tex]

or, T = 2 × 3.14 [tex]\sqrt{7*5.26/129}[/tex]

or, T = 3.51 sec

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The complete question is as follows:

A uniform rod of length L is pivoted at L/4 from one end. It is pulled to one side through a very small angle and allowed to oscillate in a vertical plane. Determine the period of oscillation of the pendulum if L = 5.26 m.

a concentric ring model in which social groupings are spatially organised in a hierarchy of rings. The upper class resides further away from the center, while the lower class is located closer to it.

The concentric ring model operates on the presumption that cultural content results from the incorporation of original ideas into the creation and/or presentation of music, text, and picture, and that these concepts originate in the fundamental artistic creativity spheres. Burgess' concentric ring model concept envisions growth occurring in a series of concentric rings surrounding the concentric ring model . According to Hoyt's sector model, economic expansion follows transportation corridors.

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The inductive reactance of the series circuit of inductance 0.1 H is 37.68 Ohms.

The circuit diagram is attached below

Inductive reactance is the opposition offered by the inductor in an AC circuit to the flow of ac current.

To calculate the inductive reactance of the series circuit, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the inductive reactance is 37.68 Ohms.

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First image:cardiac muscle cell.

Second image: elastic cartilage.

Third image: Pseudo-stratified Columnar Epithelium.

Fourth image: cilia.

Cardiac muscle, a kind of striated, involuntary muscle found solely in the heart, is what allows the heart to pump blood.

Cardiac muscle cells are found in the heart's walls, where they may be seen as being striped (or striated) and controlled by an involuntary process.

Cells in cardiac muscle tissue, or the myocardium, respond to electrical signals from the nervous system by contracting and expanding. Together, these cardiac cells create the wavelike, rhythmic contractions that make up the heartbeat.

Part A:

In the first image, the highlighted structure is cardiac muscle cell.

The cartilage type in the second image is elastic cartilage.

In the third image,  the epithelium indicated by the arrows are pseudo-stratified Columnar Epithelium .

In the fourth image the highlighted structures are cilia.

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The complete question is as follows:

A certain brand of freezer is advertised to use 880 kW*h of energy per year, thus values are:

(A) P = 401.82 W

(B) K = 10.26

(C) m = 35.52 kg

Both a thermal Carnot efficiency and a Carnot coefficient of performance exist. The temperatures of the system's hot and cold reservoirs affect its maximum coefficient of performance.

(A)

Use the relation between power and energy to calculate the require power to operate engine.

The required power for the freezer to operate is:

P = E/t

E = Energy and t = time

The freezer operates for 6 h each day, and then in 1 year, the freezer operates for a time period is:

t = (365 days) × (6 h /1 day)

or, t = 2190 h

Thus, P = E/t

or, P = (880 Kw.h/ 1 year) × (10³ W / 1 KW) × (1 year/2190 h)

or, P = 401.82 W

Therefore, the required power is: 401.82 W

(B)

The theoretical maximum performance co-efficient is:

K = T(C) / [T(H) - T(C)]

or, K = (-6°C +273)/[(20°C + 273) - (-6°C +273)]

or, K = 267 K / 293 K - 267 K

or, K = 10.26

Therefore, the theoretical maximum performance co-efficient is: 0.26

(C)

The heat needed to make 1 kg ice is:

Q = m×[c(water)]×ΔT +mL

Here, specific heat of water [c(water)], heat of fusion of water L.

Q = m×[c(water)]×ΔT +mL

or, Q = (1 kg) × (4190 J/kg.K) × (293K - 273K) +  (1 kg) × (334 × 10³ J/Kg)

or, Q = 417800 J

The heat of removal is,

Q(removal) = WK

or, Q(removal) = PtK

or, Q(removal) = (401.82 W) × (3600 sec) × (10.26)

or, Q(removal) = 14841623.52 K

Mass of the ice is,

m = Q(H) /Q

or, m = 14841623.52 Ws / 417800 J

or, m = 35.52 kg

Therefore, the mass of the ice is: 35.52 kg

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A 1000 foot long by 100 foot broad coal barge is submerged in 12 feet of 60 degree water. Estimate the friction drag if the vehicle is being pulled at 12 mph. It is being dragged at a 5 ft/s speed.

What is  friction drag?

The water density of the barge's friction drag. In 60 feet of water, a coal barge that is 1000 feet long and 100 feet wide is submerged. It is being towed at a 12 mph speed. A flat-bottomed barge that was 80 feet long and 35 feet broad was submerged. A 1000 foot long by 100 foot wide coal barge is immersed in water that is 12 feet deep. It is being dragged at a 5 ft/s speed.

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Answer:

Move the magnet through loops of wire.

Explanation:

See person? that wasn't so hard its litteraly easier to put in an actual answer instead of all that spam.

One way to use a magnet to gather evidence that magnetic fields and electric currents have a causal relationship is to move the magnet through loops of wire that are present in the first option.

The relationship between magnetic fields and electric currents is known as electromagnetic induction. and electromagnetic induction states that a changing magnetic field induces an electric current in a nearby conductor, and a changing electric current induces a magnetic field around the conductor, and this relationship is the foundation for the operation of many electrical devices, such as generators, motors, transformers, and induction heaters, among others.

Hence, the correct answer is to move the magnet through loops of wire that is the first option.

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A final velocity is a speed at which an object is moving after having gone through an acceleration over some time.

Given;

mass of the package, m₁ = 10 kg

mass of the cart, m₂ = 25 kg

initial velocity of the package, u₁ = 3 m/s

initial velocity of the cart, u₂ = 0

let the final velocity of the cart = v

(a) Apply the principle of conservation of linear momentum to determine common final velocity for ineleastic collision;

m₁u₁  + m₂u₂ = v(m₁  +  m₂)

10 x 3   + 25 x 0   = v(10  +  25)

30  = 35v

v = 30 / 35

v = 0.857 m/s

(b) the impulse experienced by the package;

The impulse = change in momentum of the package

J = ΔP = m₁v - m₁u₁

J = m₁(v - u₁)

J = 10(0.857 - 3)

J = -21.43 kg.m/s

the magnitude of the impulse experienced by the package = 21.43 kg.m/s

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The renewable energy source among the given is wood and wood wastes. However they cannot be treated as perfectly renewable source because they will produce hydrocarbons when burned and will be exhausted after  massive consumption.

Renewable energy source is the source of energy which can  be regenerated or recycled after use. Solar energy, wind energy, hydrothermal energy etc. are renewable sources of energy.

Renewable sources are more efficient and nature genuine sources of energy. Whereas non-renewable source such as biogas, fossil fuels, etc. cannot be regenerated and will be exhausted after use.

Wood wastes is a common fuel used in homes as well. However, wood wastes produces harmful gases on burning and moreover they require cutting trees to get sufficient fuel.

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The downward force of magnitude must be applied to the small piston for the lift to raise a load whose weight is Fg = 15.0 kN is 225N.

Given that,

The small piston of a hydraulic lift has a cross-sectional of 3.00 cm^2.

And its large piston has a cross-sectional area of 200 cm^2.

Based on the above information, the calculation is as follows:

Here we use the Pascal's principle,

........... (1)

Here

F denoted Force exerted on the larger piston,

f denoted force that applied to the smaller piston,

A denoted cross-sectional area of the larger piston,

And, a denoted cross-sectional area of the smaller piston.

Now

=  225 N

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The fastest muscle contraction would be produced by a type IIb fibers.

Although Type IIB fibers are designed to produce ATP through anaerobic metabolic pathways, they can't provide enough ATP to the skeletal muscle fibers constantly and get tired quickly. have a rapid contraction velocity and ATP production. The muscles of the arms include a lot of these fibers. The "traditional" fast-twitch muscle fibers that are best at delivering short, intense bursts of speed are those that produce energy through anaerobic metabolism.

That type IIB fiber, which predominates in tiny mammals, is absent in large mammals, including humans, is a significant distinction. The most fatigue-prone and quickly contracting subtype of fast fibers is Type IIB. For type II muscle fibers, there is a range of slow to high contraction speeds.

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The correct option is B. A bow wave is produced while a pace boat moves faster than the waves.

In regular use and in kinematics, the velocity (generally known as v) of an object is the value of the trade of its function over time or the magnitude of the trade of its function consistent with a unit of time; it is, for this reason, a scalar amount. The common speed of an object in a c programming language of time is the distance traveled by using the object divided by means of the length of the c programming language; the on-the-spot speed is the restriction of the common velocity as the duration of the time c language processes 0. velocity isn't always similar to pace.

Pace denotes only how rapidly an object is moving, while pace describes how speedy and wherein path the item is transferring. If a vehicle is said to travel at 60 km/h, its velocity has been distinctive. however, if the automobile is stated to move at 60 km/h to the north, its velocity has now been designated.

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Answer:

Explanation:

A wooden table with a mass of 10 kg was set on a wooden floor and pushed with a force of 10N to the table, however, it did not move due to friction.

Because the force of friction was greater than the force given to the object, it did not move.

To move the box, the force applied should be more than 10N