the point where the pressure is equal to the average pressure on a submerged surface is called?

The arrow and the hay bale target would slide backwards at a speed of approximately 0.499 m/s.

We can use the principle of conservation of momentum to solve this problem.

Since the hay bale is at rest prior to the collision, let its initial velocity be zero. After colliding, let v represent the velocities of the arrow and the hay bale target. Next, we have :

(m1 * v1) + (m2 * v2) = (m1 + m2) * v

Where

Plugging in the given values, we get:

(0.105 kg * 48 m/s) + (10.0 kg * 0 m/s) = (0.105 kg + 10.0 kg) *

5.04 kg m/s = 10.105 kg * v

v = 5.04 kg m/s / 10.105 kg

v = 0.499 m/s

Therefore, the arrow and the hay bale target would slide backwards at a speed of approximately 0.499 m/s.

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Answer:

true

Explanation:

hope I helped a bit

Explanation:

P =F * v

F = m * a = 65 kg * 9.81 ms^-2 * 12 passengers

v = d/t = 150m / 64 s

I think you can calculate and substitute this units should be watts

The power needed to transport the passengers through this height is 17.933 KW or 17933 Watts.

Power can be defined as the rate at which work is done by an object. Power can be calculated by the formula:

P = W × t

where, P = power, w = work done, and t = time taken.

The SI unit for power is the watt (W), where 1 watt power is equal to 1 joule/second (1W = 1J/s). Because, the work done by an object is the energy transfer by the object, and power is also the rate at which energy is expended.

P = F × v

where, P = Power, F = Force, and V = velocity of the object

F = m × a = 65 kg × 9.81 ms⁻² × 12 passengers = 7651.8

v = d/t = 150m / 64 s = 2.343

P = 7651.8 × 2.343

P = 17,933.90

P = 17.933 KW

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Answer:

1. the pencil would have the momentum and would keep going until it hits the windshield. 2. when the car suddenly accelerates, the pencil would be inert and it would move toward the back of the car until a constant speed from the car is reached.

Answer:

The correct answer to the following question will be Option A (High specific heat).

Explanation:

A thermal or heat insulator has been used to help avoid heat from travelling from one location to the another.

Other given choices are not related to the given scenario. So that Option A seems to be the right answer.

Amplitude

The amplitude of wave is is the maximum displacement of the wave from its respt position. It can also be seen as the distance from the center line to the trough or o the crest

The amplitude of wave is related to the energyu carried by the wave.

If the amplitude of a wave is high, then the wave is of high energy. Also, if a ave has a low amplitude, then the wave is a low energy wave

Answer:

The fundamental frequency is "190.52 Hz".

Explanation:

The given question is incomplete, please find attachment of the complete problem.

The given values are:

Frequency,

f = 146.8 Hz

Length of D-string,

L = 0.61

As we know,

⇒ \(f = \frac{v}{2L}\)

On putting the given values, we get

⇒ \(146.8 = \frac{v}{(2\times 0.61)}\)

⇒       \(v=146.8\times 1.22\)

⇒       \(v=179 \ m/s\)

So,

The new length will be:

⇒  \(f = \frac{179}{(2\times 0.47)}\)

⇒     \(=\frac{179}{0.94}\)

⇒     \(=190.52 \ Hz\)

The fundamental frequency, in hertz, of the new tone that is produced when the string is plucked is 168.84 Hz

Let assume that the oscillating length on the guitar is 0.62 m,

If the guitarist shortens the oscillating length of the properly tuned D-string by 0.15 m.

Then the new length of the oscillating string L' = (0.62 - 0.15 )m = 0.47 m

The fundamental frequency of the new tone can be computed by using the formula:

\(\mathbf{f = \dfrac{1}{2L'} \sqrt{\dfrac{T}{m/L}}}\)

where;

T  = 4× 0.62× 147 × 1.5× 10⁻³  (assuming old fundamental frequency = 147)

T  = 4× 0.62× 147 × 1.5× 10⁻³

T = 80.39 N

∴

\(\mathbf{f = \dfrac{1}{2 \times 0.47} \sqrt{\dfrac{80.39}{1.5 \times 10^{-3}/0.47}}}\)

f = 168.84 Hz

Therefore, the fundamental frequency, in hertz, of the new tone that is produced when the string is plucked is 168.84 Hz

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Answer:

B. Applied

Explanation:

Applied means that somethings is pushing directly into it like a person to a box. and well the reasons why the others are not contact force are because gravity its cause to an attraction to the planet and no matter where you are it will still attract you, electric is not because it can flow through air, magnetic it affects to an invisible field that even if its not torching the marital you can still feel the magnetic push or pull

So applied

The position of the image is 24 cm behind the mirror, and its height is 4 cm.

To determine the position and height of the image formed by a concave mirror, we need to use the graphical method. First, we draw the incident ray from the top of the object, parallel to the principal axis, and then we draw the second ray from the top of the object through the focal point of the concave mirror. The intersection of these two rays gives us the location of the image.
Using the given values, we can calculate the position of the image as follows:
1/f = 1/p + 1/q
where f is the focal length, p is the object distance, and q is the image distance.
Substituting the values, we get:
1/8 = 1/12 + 1/q
Solving for q, we get:
q = -24 cm
Since q is negative, it indicates that the image is virtual and upright.
To find the height of the image, we use the magnification formula:
m = -q/p
Substituting the values, we get:
m = -(-24 cm) / 12 cm = 2
This indicates that the image is twice the size of the object and upright.

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Answer:

Explanation:

Given:

A = 0.1 m²

F = 200 N

_________

p - ?

Pressure:

p = F / A

p = 200 / 0.1 = 2 000 Pa

Answer:

gas

Explanation:

Solids are compact together, liquida arent compact but are still close, and gases are free roaming and may be very far apart from eachother.

Answer:

The Answer is Gas.

Explanation:

Answer:

weight

Explanation:

the reason is because I am invteble

The statement that is wrong concerning the two tails of a comet is "they are perpendicular to each other." Two tails of a comet can't be perpendicular to each other.

Comets are celestial bodies that circle around the sun, originating from the Kuiper Belt and Oort Cloud. Comets are believed to be made up of ice, rock, and dust, and they can range in size from a few meters to tens of kilometers in diameter. Comets typically consist of two tails: a gas or plasma tail and a dust tail. Two tails of a comet. The two tails of a comet are made up of gas, plasma, and dust. They all point in opposite directions from the comet's nucleus, or core, as it travels through space. The dust tail of a comet is more massive than its ion tail, which is made up of electrically charged particles that are affected by the sun's magnetic field. Both tails of a comet are not perpendicular to each other because they are pointing in opposite directions. A gas tail may be tens or hundreds of thousands of kilometers long. It consists of highly volatile molecules such as water and carbon dioxide that have been energized by the sun's ultraviolet radiation. As they lose energy, the molecules release the energy in the form of light, which is what makes the gas tail visible. A dust tail, on the other hand, consists of tiny grains of rock and dust that have been kicked off the surface of the comet. It's typically much shorter than the gas tail, but it can be much brighter.

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Answer:

Initial: bring ek, eg and ech all to 2, in the end bring ek, eg up to 3 each

Explanation:

The initial state of the ball, the effect the ball might have on the Earth, and the balls final state. Ek stands for kinetic energy, Eg stands for gravitational potential energy, and Ech stands for chemical change (stored energy in food/fuel), Eint stands for internal energy change.

Kinetic energy is the type of energy present in a body due to the property of its motion and potential energy is the kind of energy present in a body due to the property of its state.

Kinetic energy can be easily transferred from one body to another but potential energy is not transferable. Kinetic energy is relative with respect to nature and potential energy is non-relative with respect to nature.

As the ball is rolling down a ramp, its potential energy decreases and kinetic energy increases.  The ball has the maximum potential energy when it is at the top, and this potential energy is transformed into both translational and rotational kinetic energy as it rolls down.

When the ball is at the topmost height, its gravitational potential energy is maximum and zero kinetic energy. When a ball reaches the bottom of the ramp, it will have zero potential energy and maximum kinetic energy.

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The equation that describes the graph is y = 16.7x + 150.

We have been given the graph of a certain function data set in physics. We know that the graph is the representation of data on cartesian coordinates. In this case, we are asked to find the equation of the graph in the form; y=mx+b

m = slope of the graph

b = intercept of the graph.

To obtain the slope;

m = y2 - y1/ x2 - x1

m = 400 - 200/ 16 - 4

m = 200/ 12

m = 16.7

Then we can see from the graph that the y - intercept is 150. Having these data, the equation that could describe the graph is now;

y = 16.7x + 150

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Answer: The width of bands will be 2λ

Explanation: Please see the attachments below

1. 2.1 m/s west.

2. 2.0 m/s west.

3. 1.4 m/s west.

Momentum is a conserved quantity, meaning that it is neither created nor destroyed. This means that the total momentum of the system (cue ball and eight ball) before and after the collision must stay the same. After the collision, the momentum of the system is equal to the momentum of the eight ball alone since the cue ball no longer has momentum after it stops (for option 1) or has a different momentum depending on its speed (for options 2 and 3).

Since momentum is mass times velocity, we can solve for the velocity of the eight ball by rearranging this equation:

Momentum = Mass x Velocity

Velocity = Momentum / Mass

Plugging in the given values:

1. Velocity = (2.1 m/s east) / (mass of both balls) = 2.1 m/s west

2. Velocity = (2.1 m/s east + 0.10 m/s east) / (mass of both balls) = 1.9 m/s west

3. Velocity = (2.1 m/s east + 0.70 m/s east) / (mass of both balls) = 1.4 m/s west

Answer:

The red substance was ionic. The white substance was molecular.

Explanation:

B.C.

If Clarisse had three substances, A white substance was waxy and malleable. A red crystal was translucent, and it cracked when she hit it with a hammer. A silver substance could be flattened by hitting it with a hammer, but it did not crack. the two true statements are the red substance was ionic and the white substance was molecular. therefore the correct option is B and D.

The chemical compound is a combination of two or more either similar or dissimilar chemical elements, for example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

These chemical compounds are formed because of different types of bonds between the constituent's elements, the chemical bonds are mainly ionic bonds, covalent bonds,s, and hydrogen bonds.

Ionic bonds are formed due to the transfer of electrons between two bond-forming pairs differentiated by their electronegativity.

Covalent bonds are formed by the sharing of electrons. Generally, organic compounds are formed as the reason for covalent bonds.

As the white substance is waxy and malleable and the silvers substance could be flattened by hitting with a hammer but it did not crack it means the white substance is a metallic material that is molecular in nature , the red crystal is translucent and cracked when hit with a hammer this means it is ionic in nature.

Thus, the correct options are option B and option D.

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The specific heat of a substance of a container affect the quantity of substances that can be accommodated in the container at a given temperature.

The specific heat capacity of a substance is the quantity of heat required to raise the temperature of a unit mass of the substance.

Mathematically, the formula relating specific heat capacity and heat capacity of a substance is given as;

Q = m x  c  x Δθ

where;

From the formula above we can make mass " m " the subject of the formula;

m = ( Q ) / (  c  x Δθ )

As the specific heat of a substance increases, the smaller the mass of the substance that can be held in a container at equal heat gain and temperature and vice versa.

Thus, the specific heat of a substance affects the performance of a container as it depends the mass or volume of the substance that can be held in a container at a constant heat capacity and temperature.

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The term dry gas pressure refers to 3)Total pressure of the pure gas plus the water vapor pressure when a gas sample is collected over water

When a gas sample is collected over water, the pressure it exerts is referred to as dry gas pressure because the water vapour component has been eliminated or taken into consideration. When a gas is gathered over water, it frequently includes water vapor in addition to the gas of interest. Water vapour can have an impact on pressure measurements since it adds to the system's overall pressure.

The partial pressure of water vapour must be deducted from the overall pressure in order to obtain the dry gas pressure. The amount of water vapor present is measured using methods like the vapour pressure of water at a particular temperature or other measurement tools like a hygrometer.

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Complete Question:

What does the term "dry" gas pressure refer to when a gas sample is collected over water?

1)Atmospheric pressure

2)Vapor pressure of water

3)Total pressure of the pure gas plus the water vapor pressure

4)Pressure of the pure gas

Answer:

Energy exists in how objects interact with each other. Often energy can only be indirectly observed - by observing the processes that happen within a system.

Explanation:

For example: person A drops a rubber ball on the floor and it bounces back to them.

As it's falling you are creating gravitational energy and turning that into the energy of motion: kinetic energy.

Answer:

i would say Momentum

Explanation:

because they need the quantity of motion

The given information says that the wind is blowing at 61 cvs. Therefore, the speed of the wind blowing is 61 cvs.

Wind speed is usually measured in miles per hour (mph), kilometers per hour (km/h), meters per second (m/s), or knots (nautical miles per hour, abbreviated kt or kts). To find the speed of the wind, these measurements use different mathematical formulas and conversion factors.It is stated in the given question that the wind speed is 61 cvs. However, this unit of wind speed is not commonly used, as it is not a standard unit of wind speed measurement.

The speed of the wind is an essential factor in predicting weather conditions and determining their potential impact on people, structures, and the environment. Wind speed is typically measured in units such as miles per hour (mph), kilometers per hour (km/h), meters per second (m/s), and knots. According to the given information, the wind speed is 61 cvs. This unit of wind speed is not widely used, as it is not a standard unit of wind speed measurement. To determine the wind speed, it is necessary to employ various mathematical formulas and conversion factors that differ depending on the unit of measurement used.

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Answer:

a. 150 J

b. 150 J

c. 0 J

d. 0 J

Explanation:

The given parameters are;

The horizontal force with which the man pulls the canister, F = 50 N

The distance he moves the vacuum cleaner, d = 3.0 m

a. Work done, W = Force applied, F × Distance moved by the force, d

Therefore, for the work done by the 50 N force on the canister, we have;

W = 50 N × 3.0 m = 150 N·m = 150 J

b. Given that he pulls the canister at a constant speed, we have;

The acceleration of the canister, a = 0 m/s²

Therefore, the net force on the canister, \(F_{NET}\) = F - \(F_{Friction}\)  = m × a

Where;

m = The mass of the canister

a = The acceleration of the canister

F = The applied force = 50 N

\(F_{Friction}\) = The force of friction

∴ \(F_{NET}\) = m × a = m × 0 m/s² = 0 N

Therefore;

\(F_{NET}\) =  F - \(F_{Friction}\) = 0 N

From which we have;

F = \(F_{Friction}\) = 50 N (The applied force, F is equal to the force of friction,

The work done by friction = The force of friction × The distance in which the force of friction acts

∴ The work done by friction = \(F_{Friction}\) × d - 50 N × 3.0 m = 150 J

The work done by friction = 150 J

c. The normal force, N acts perpendicular to the force of friction

The distance the canister moves in the perpendicular direction, \(d_p\) = 0 m

∴ The work done by the normal direction = N × \(d_p\) = N × 0 m = 0 J

The work done by the normal direction = 0 J

d. The vacuum weight, W, acts on the same line as the normal force but in the opposite direction to the normal force, N

Therefore, the weight, W, acts perpendicular to the line of motion of canister

The distance the canister moves in the direction of the weight, \(d_{wieght}\) = 0 m

Therefore, the work done by the weight = W × \(d_{wieght}\) = W × 0 m = 0 J

The work done by the weight = 0 J

Peter tosses his baby, Stewie, up into the air to keep the child entertained. Stewie reaches a maximum height of 0.333 m above the release point. Stewie took approximately 0.289 seconds to reach the peak height.

To calculate the time taken by Stewie to reach the peak height, we can use the kinematic equation for vertical motion. Since Stewie is tossed up, we assume an initial velocity of zero at the release point. The equation we can use is:

y = v_i * t + (1/2) * g * t^2

Where:

y = maximum height reached (0.333 m)

v_i = initial velocity (0 m/s)

g = acceleration due to gravity (-9.8 m/s^2, negative since it opposes the upward motion)

t = time

Plugging in the values, we get:

0.333 = 0 * t + (1/2) * (-9.8) * t^2

Simplifying the equation, we find:

4.9 * t^2 = 0.333

Solving for t, we get:

t^2 = 0.333 / 4.9

t^2 = 0.068163

Taking the square root of both sides, we find:

t = √0.068163

t ≈ 0.289 seconds

Therefore, it took Stewie approximately 0.289 seconds to reach the peak height.

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Answer:

3,033,276 J

Explanation:

The work can be calculated as

W = Fd

Where F is the force and d is the distance.

Replacing F by 29,738 N and d by 102 m, we get:

W = (29,738 N)(102 m)

W = 3,033,276 J

Then, it has done 3,033,276 J

Answer:

i am the best star ever

Explanation:

A single-phase half-controlled bridge rectifier driving a separately excited motor operates by controlling the firing angle of the thyristors to regulate the average output voltage applied to the motor's armature winding, thus controlling its speed and direction.

In a single-phase half-controlled bridge rectifier, only two out of four diodes are controlled by thyristors or other electronic switches. This allows control of the output voltage and current. The rectifier converts the AC input voltage into a pulsating DC voltage.

When this rectifier is used to drive a separately excited motor, the rectified DC voltage is applied to the motor's armature winding, while the motor's field winding is supplied by a separate source or controlled separately.

The operation of the rectifier and motor can be explained as follows:

1. During the positive half-cycle of the input AC voltage, one thyristor (T1 or T2) is fired and conducts, allowing current to flow through the motor's armature winding. The motor rotates in one direction.

2. During the negative half-cycle of the input AC voltage, the other thyristor (T3 or T4) is fired and conducts, reversing the current flow through the motor's armature winding. The motor rotates in the opposite direction.

By controlling the firing angle of the thyristors, the average output voltage and thus the speed of the motor can be controlled.

To obtain the transfer function of the rectifier from the (Vt−α) curve, the transfer function can be derived based on the relationship between the input voltage Vt and the firing angle α. However, without specific information on the (Vt−α) curve, it is not possible to provide the exact transfer function.

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i searched this in googl.e, and there was one website, so i clicked it, and umm it was very disgusting ,,,