Levers pivot on the
A. fulcrum
B. resistance arm
C. effort arm
D.moon

The x-ray tube and image receptor move in opposite directions around a stationary axis or pivot point during the exposure.

This is referred to as the pivot or fulcrum. The x-ray tube and image receptor can travel in a circular or elliptical motion around the patient thanks to the pivot point, which is normally in the middle of the patient's body. Several images of the same area can be obtained thanks to the motion of the x-ray tube and image receptor, giving more in-depth knowledge of the patient's anatomy. The motion can be managed manually or by a computer, and the speed and direction of the movement can be altered to improve the quality of the image.

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1.6x15=24

0.4x4.5=1.8

24+1.8=25.8

1.6+0.4=2

25.8/2=12.9

Answer:

1.6x15=24

=0.4x4.5=1.8

=24+1.8=25.8

=1.6+0.4=2

=25.8/2=12.9

The answer is 6.

Add 4 then divide 2. You should have 18 after you do that, subtract 10 then multiply 20. You then have 6.

Answer:

maneeee , i just need a couple points so ..

Explanation:

hehee , played yall

Answer: 13 N

Explanation: You have to use F=m * g

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in the question,

Velocity = 60/6

Velocity = 10 m/sec

acceleration = Velocity / time

acceleration = 10/10

acceleration = 1 m/sec²

Force = mass. acceleration

Force = 13 . 1

Force = 13 N

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N

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Answer:

Explanation:

you got that wrong it is  a 0.4

The weightlifter has done 900 Joules of work to move the weight over her head. Work is a measure of the energy transferred when a force is applied over a distance. In this case, the weightlifter has transferred 900 Joules of energy to the weight.

The work done by the weightlifter to move the weight over her head can be calculated by multiplying the force applied to the weight by the distance it is moved. In this case, the force applied is 500N and the distance moved is 1.8m.

So, the work done is:

Work = Force x Distance

Work = 500N x 1.8m

Work = 900 Joules

It's important to note that the weightlifter's own weight and the force of gravity also played a role in the overall work done to move the weight. The weightlifter had to overcome the force of gravity to lift the weight off the ground, and her own weight contributed to the force required to lift the weight. However, for the purpose of this calculation, we have assumed that the weight was lifted in a smooth and controlled motion without any effort or sudden movements.

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Given:

To find:

Fill in the blanks

Explanation:

1) Energy can undergo conversion, changing from one form to another. For example, a wind turbine converts the mechanical energy of the wind into electric energy in the power grid. This power grid can then be converted into thermal energy by an electric heater.

2) Solar panels generate electrical energy by taking radiant energy from the sun and having it undergo conversion. This process does obey the law of conservation of energy because energy isn't randomly created, but it is simply converted.

The angle between the two forces in the question is 102°.

The angle between two forces can be calculated using the following formula:

F² = F₁² + F₂² + 2F₁F₂cosθ

where F is the magnitude of the resultant force, F₁ and F₂ are the magnitudes of the two forces and θ is the angle between them.

Using this formula, we can calculate the angle between the two forces in question.

Given that two forces of 564 newtons and 466 newtons act on a point and the resultant force is 997 newtons, we can calculate the angle between them as follows:

997²= 564² + 466² + 2 x 564 x 466 x cosθ

cosθ = (997² - 564² - 466²) / (2 x 564 x 466) = -0.186

θ = cos⁻¹(-0.186) = 102 degrees

Therefore, the answer is 102 degrees (rounded to the nearest integer).

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The potential energy of the system is 16.2 J when the potential energy of the three charges is zero.

In the given scenario, we have a system comprising three point charges of equal magnitude, with each charge measuring 1.20 mc. These charges are positioned at the corners of an equilateral triangle, where each side of the triangle has a length of 0.400 m.

The objective is to determine the potential energy of the system, considering the potential energy of the charges as zero when they are infinitely far apart.

So the distance between the charges, r= 0.4 m

The charges are equal in magnitude, q1 = q2 = q3 = 1.20 mc

The electrostatic potential energy of this system is given by the equation:

U = (1/4πε₀) (q₁q₂/r₁₂ + q₂q₃/r₂₃ + q₃q₁/r₃₁)

Our task is to compute the potential energy of the system. It's worth noting that the three charges in the system have the same magnitude.

Therefore, the above equation reduces to:

U = (3/4πε₀) ((1.20 mc)²/0.4 m)

U = (3/4πε₀) (1.44 × 10⁻⁶ C²/0.4 m)

U = (3/4πε₀) (3.6 × 10⁻⁶ C²/m)

The value of ε₀ = 8.85 × 10⁻¹² C²/(N m²)

Substituting the value of ε₀, we get

U = (3/4π × 8.85 × 10⁻¹² C²/(N m²)) (3.6 × 10⁻⁶ C²/m)U = (4.5 × 10⁹ N m²/C²) (3.6 × 10⁻⁶ C²/m)

U = 16.2 J

Therefore, the potential energy of the system is 16.2 J when the potential energy of the three charges is zero.

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To solve this problem, we need to use the equation for rotational motion he reel undergoes an angular acceleration of approximately 3.42 rad/s^2 when.

Acceleration is defined as the rate of change of velocity with respect to time. It is usually denoted by the symbol a and is a vector quantity, meaning it has both magnitude and direction.The SI unit of acceleration is meters per second squared (m/s^2). If an object's velocity changes by Δv in a time interval of Δt, the acceleration In three-dimensional motion, acceleration is a vector quantity with components in each coordinate direction. The total acceleration vector can be found by taking the vector sum of the acceleration components in each direction.Acceleration plays an important role in physics, as it describes the changes in motion of objects due to the influence of forces. For example, in classical mechanics, Newton's second law states that the force acting on an object is equal to its mass times its acceleration. In this way, acceleration can be used to describe the motion of objects subject to forces such as gravity, friction, and electromagnetic fields.

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Answer:

21 m

Explanation:

Since the displacement from the door is 2 m West, we have our vector as -2i. The vector representing 14.0 m South is -14.0j. The vector representing 25.0 m East is 25.0i. The vector representing 11.0 m North is 11.0j. And, the vector representing 2.0 m West is -2.0i.

So, to get our position vector at the other location, we add all the vectors together.

So, r = -2i + (-14.0j) + 25.0i + 11.0j - 2i

= -4i + 25.0i - 14.0j + 11.0j

= 21.0i -3j m

Now, if we assume the position vector for the door is at the origin, we have r₀ = 0i + 0j m

So, our displacement from the door is r - r₀ = 21.0i - 3.0j - (0i + 0j) =  21.0i - 3.0j

So, the magnitude of the resultant displacement |r - r₀| = √(21.0² + 3.0²)

= 3.0√(7.0² + 1)

= 3.0√(49 + 1)

= 3.0√50

= 3.0 × 7.0711

= 21.2

≅ 21 m to the nearest integer

The momentum of the girl is -120 kgm/s in the direction opposite to the boy.

The momentum of an object is defined as the product of its mass and velocity. Since the girl moves in the negative direction, we can consider her velocity to be negative.

The momentum of the girl can be calculated as:

momentum = mass x velocity

momentum = 40 kg x (-3 m/s)

momentum = -120 kgm/s

Therefore, the momentum of the girl is -120 kgm/s.

Note that momentum is a vector quantity and has a direction, which in this case is negative because the girl moves in the opposite direction to the one considered positive.

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The drift velocity (v) of charge carriers in a conductor is given by the following equation: v = I / (n \(\times\) A \(\times\) q).

v = I / (n \(\times\) A \(\times\) q)

where:

v is the drift velocity, measured in meters per second (m/s)

I is the current flowing through the conductor, measured in amperes (A)

n is the number of charge carriers per unit volume of the conductor, measured in per cubic meter (\(m^(-3)\))

A is the cross-sectional area of the conductor, measured in square meters (m^2)

q is the charge of a single carrier, such as an electron, measured in coulombs (C)

This equation relates the drift velocity of the charge carriers to the current flowing through the conductor, the number of charge carriers per unit volume, the cross-sectional area of the conductor, and the charge of a single carrier. The drift velocity represents the average velocity of the charge carriers as they move through the conductor in response to an applied electric field.

The number of charge carriers per unit volume (n) depends on the material of the conductor and the temperature. In metals, the charge carriers are typically electrons, and the number density is on the order of 10^28 to 10^29 electrons per cubic meter.

The cross-sectional area (A) of the conductor is the area of the cross-section of the conductor perpendicular to the direction of the current flow, and is a measure of the amount of material available for the charge carriers to move through.

The charge of a single carrier (q) is typically the charge of an electron, which is approximately 1.6 x \(10^{-19\) coulombs.

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Answer:

548800J

Explanation:

Given parameters:

Mass of roller coaster  = 800kg

Height of hill  = 70m

Unknown:

Change in potential energy  = ?

Solution:

The change in potential energy is the difference between the potential energy at the bottom and at the top.

Potential energy at the bottom is 0J

  So;

      Change in potential energy  = mgh - 0

m is the mass, g is the acceleration, h is the height

  Change in potential energy  = 800 x 9.8 x 70  = 548800J

The thing same about a particle as gas, liquid, or solid is its chemical composition.

Matter exists in three different states: solid, liquid, and gas. By examining the configuration of their particles, it is possible to understand why they have various qualities. Theoretically, at this temperature, particles move slowly and have the least amount of energy.

Phase refers to the material's actual state. To pay attention to is the word physical. Only physical means can change the state of matter. You can make a physical change if energy is added (by raising the temperature) or subtracted (by freezing things).

The chemical composition of matter same about a particle as gas, liquid or solid.

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The outside temperature of a frozen lake can be calculated if the heat flow through a given area of the ice layer and the conductivity of the ice are known.

The outside temperature of a frozen lake can be determined using the formula for heat flow through a material, which relates the rate of heat transfer to the temperature difference across the material and its thermal conductivity. In this case, we are given the heat flow through a 1.00 m2 area of the ice layer and the thermal conductivity of the ice. We can use this information to calculate the temperature difference across the ice layer and hence the outside temperature.

To calculate the outside temperature, we first need to find the temperature difference across the ice layer. This can be done using the formula for heat flow:

\(Heat\, flow = (Thermal\,conductivity) \times (Area) \times \frac{Temperature \, difference}{Thickness}\)

Rearranging this equation to solve for the temperature difference, we get:

\(Temperature\,\, difference = \frac{(Heat flow \times Thickness)}{Thermal\,\,conductivity \times Area}\)

Substituting the given values, we get:

\(Temperature difference = \frac{(185 W\times 0.338 m)}{2.40 W/(mK) \times 1.00 m^2} = 24.5 K\)

Therefore, the outside temperature is the temperature of the ice plus the temperature difference, which is:

Outside temperature = 0 K + 24.5 K = 24.5 K

Thus, the outside temperature of the frozen lake is approximately -248.7°C.

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The correct answer is option B) 1.2A. According to Ohm's Law, current (I) is equal to voltage (V) divided by resistance (R). Therefore, for a voltage of 12 volts and a resistance of 10 ohms, the current can be calculated.

To find the current for a voltage of 12 volts and a resistance of 10 Ohms, we will use Ohm's Law, which states that Voltage (V) = Current (I) * Resistance (R). We can rearrange the formula to find the current: I = V / R.

Given:
Voltage (V) = 12 volts
Resistance (R) = 10 Ohms

Now, calculate the current:
I = V / R = 12 volts / 10 Ohms = 1.2 A

So, the current is 1.2 A (Option B).

Now, let's define current, voltage, and resistance with their SI units:

1. Current (I): The flow of electric charge through a conductor, measured in Amperes (A).

2. Voltage (V): The electric potential difference between two points in a circuit, which causes the flow of current. It is measured in Volts (V).

3. Resistance (R): The opposition to the flow of electric current in a conductor, measured in Ohms (Ω).

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Answer:

A & C

Explanation:

Answer:

A and C

Explanation:

Answer:

A Peak

B Period

C 1/2 Period

D Trough

E Period

F 1/2 Period

Explanation:

Science

Answer:

uuuuuuuum be specific

232.5 m/s is the speed of the earth's surface where 2/3 of the length of the arc between the poles and the equator.

Latitude is the angle between a place on the earth's surface and the planet's centre. It identifies a point's north-south location on the surface of the Earth. Latitude is an angle that can be either north or south of 0° at the equator and 90° at the poles.

The radius of the earth's surface is 6.37 X \(10^6\) metres,

and its angular displacement from the pole is 90 degrees,

According to the information provided above.

So the 2/3 is 60 degrees.

Since v = \(\omega\)r,

where r is the radius of the earths surface

\(\omega\) is the angular displacement

r = 6.37x\(10^6\) x cos(60)

r = 3.185x\(10^6\)m,

v = 7.3x\(10^{-5}\) x 3.185x\(10^6\)

v =232.5 m/s

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Answer:

-10.8m/s^2

Explanation:

a=change in velocity/change in time

-27 m/s/2.5=10.8m/s^2

or if its not negative

27m/s/2.5=10.8m/s^2

Answer:

f = 270.37 Hz

Explanation:

Given that,

The length of the long open end air column, L = 63.8 cm

The speed of sound in the air is 345 m/s

We need to find the frequency of the air column. For an open pipe, the frequency is given by :

\(f=\dfrac{nv}{2L}\\\\f=\dfrac{345}{2\times 63.8\times 10^{-2}}\\\\f=270.37\ Hz\)

So, the frequency of the air column is equal to 270.37 Hz.

AnswerAnswerAnswerAnswerAnswer:0.3571m

Explanation:

Answer:

D. a nonrenewable resource

Explanation:

From the description given, helium is a non-renewable resource.

Explanation:

satellite A, because of its closest orbit.

Answer:

C and D

Explanation:

A: is a simple composition

B: is a single replacement

C: C is a double displacement

D: is a double replacement

Answer:

The answers are C abd D.

Explanation:

Here,

A no. Is a combination or analysis chemical reaction.

B no.is a single displacement reaction as cl2 goes to zn.

C no. Is double displacement reaction.

D no. Is a double displacement reaction.

Hope it helps.....

Answer:

1. B- kinetic to gravitational potential energy

2. A-gravitational to kinetic energy

Explanation:

When the train goes up the hill, the kinetic energy decreases (the speed decreased) due to the pull of gravity.

When the train goes down the hill, the speed increases (kinetic energy increases) and since the object is coming downwards the gravitational potential energy decreases

As the train went up the hill, Kinetic energy was converted into Gravitational potential energy, and As the train went down the hill, Gravitational potential energy was converted back into Kinetic energy. The correct option for both is B.

The conversion of energy refers to the process of changing energy from one form to another. Energy can be converted from one form to another, but it cannot be created or destroyed. This is known as the law of conservation of energy. Therefore, the total amount of energy in a closed system remains constant, even though it can be converted from one form to another.

Energy can be converted between different forms, such as mechanical, thermal, electrical, chemical, and nuclear energy. For example, when a car moves, the energy from the fuel is converted into mechanical energy to make the car move. When a light bulb is turned on, electrical energy is converted into light and heat energy. When food is digested, chemical energy is converted into mechanical and thermal energy.

The efficiency of energy conversion is an important factor in many processes, and the goal is often to maximize the amount of useful energy that can be obtained from a given amount of energy input. Energy conversion is an important concept in physics, engineering, and many other fields, as it helps us understand and analyze various physical processes and phenomena.

Here in the Question,

As the train went up the hill, Kinetic energy was converted into Gravitational potential energy. Because As the train goes up the hill, it gains height, and its potential energy increases. At the same time, its speed decreases due to the work done by gravity against the train's motion, causing a decrease in kinetic energy. Therefore, the kinetic energy of the train is converted into gravitational potential energy.

As the train went down the hill, Gravitational potential energy was converted back into Kinetic energy. Because As the train goes down the hill, its height decreases, and its potential energy decreases. At the same time, its speed increases due to the work done by gravity in the direction of the train's motion, causing an increase in kinetic energy. Therefore, the potential energy of the train is converted back into kinetic energy.

Therefore the correct answer to both questions is option B.

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