Curare is a paralyzing poison that functions as an:.

Answer:

the answer is 32,400

Explanation:

I looked it up for you

The average speed denotes the average rate of speed over the extent of a trip. The average speed of a car which travels 270 meters in 30 seconds is 9m/s.

The average speed can be defined as the ratio of the total distance travelled by an object to the total time taken. It is a scalar quantity. It is represented by the magnitude and does not have direction. Its SI unit is m/s.

The average speed of an object help us to calculate the rate of travel time and the distance. The average speed of an object when it covers the same distance at two different speed, X and Y is:

Average speed = 2XY/ X+Y

The equation used here to calculate the average speed is:

Average speed = Total distance / Total time

Average speed  = 270 m / 30 s = 9 m/s

Thus the average speed is 9 m/s.

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If the temperature of the sink is equal to absolute zero, the efficiency of a heat engine should be 100%.

This is because the efficiency of a heat engine is calculated using the formula: efficiency = 1 - (Tc/Th),

where Tc is the temperature of the sink and Th is the temperature of the source.

When the temperature of the sink is absolute zero, Tc = 0, so the efficiency becomes 1 - (0/Th) = 1 - 0 = 1.

In other words, all the heat energy absorbed from the source is converted into useful work, resulting in maximum efficiency.

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Answer:

a) Mat swum 100 meters.

b)after 4 length , Mat's displacement is zero.

Explanation:

As given, Mat and David are training for the swimming team , and Length of 1 side of the pool is 25 meter.

As swimming pool will be a cube or a cuboid , so it has only 4 sides.

a)

1 length = 23 meter

⇒4 length = 4×25 = 100 meter

So, Mat swam 100 meters.

b)

As after swam 4 lengths of the pool, Mat reaches to its initial position i.e Mat come back to its starting point.

As Displacement is always measures from the starting point.

So, after 4 length , Mat's displacement is zero.

When rock is eroded mechanically by forces like wind, water, gravity, freeze-thaw cycles, or root growth in the rock, this is known as physical weathering.

However, as gravity defines the ensuing interaction between two masses, it is a force in the broadest sense. The deformation of spacetime and indeed the motion of things through the stretched spacetime are the primary causes of gravitational effects. It appears as though a force was exerted towards the end, though.

Gravity's acceleration can be quantified as 9.8 m/s/s, which is the most precise figure. This number (to the second decimal place) has a few tiny changes, most of which are related to altitude.

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Answer:

70km/h

Explanation: add up distances then divide by total time

Answer:

80.26km/hr

Explanation:

speed formulae is speed =distance travelled ÷ time taken

so, we first calculate the first one that is 215÷ 3.50 to get 61.4...

then, we calculate the second that is 175÷1.50 to get 116.67

Then, we calculate the third one that is 345÷5.50 to get 62.7

Then we add all of the three value we calculated that is 61.4+ 116.67 + 62.7 to get 240.77

then we divide 240.77 by 3 to get the average speed that is 80.26km/hr

3 electrical equipments consider for this circuit diagram are,

1. Ammeter

2. Resistance

3. Resistance

The circuit diagram with 6 lamps and 3 electrical equipments and 1 power source with open circuit form is represented as,

The vector BR in unit vector notation is:

BR = 8.485 î + 8.485 j

What is Vector?

Vectors can be added together to find the result, which is known as the vector sum. The vector sum can be found using the head-to-tail method, where the tail of one vector is placed at the head of the other vector. The vector sum is the vector that goes from the tail of the first vector to the head of the second vector.

To write the vector BR in unit vector notation, we need to find its components in the i and j directions.

Given that the magnitude of the vector is 12.0 and it makes an angle of 45 degrees with the positive x-axis, we can use trigonometry to find the components.

The x-component (i-direction) of the vector is given by:

Bx = B cos θ = 12.0 cos 45° = 8.485

The y-component (j-direction) of the vector is given by:

By = B sin θ = 12.0 sin 45° = 8.485

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The amount of force required to stop an object, based on the forces of inertia and momentum, varies according to speed, weight, and the distance between impact and stop.

Inertia is the tendency of an object to remain in motion unless acted upon by an outside force, while momentum is the product of an object's mass and velocity. The amount of force required to stop an object is proportional to its mass, velocity, and the distance it needs to travel before it comes to a stop. The greater the mass, velocity, and distance, the more force is required to stop the object.

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The centripetal force on the turbine blade is 1332.3 N.

A force that causes a body to follow a curved path is known as a centripetal force. It always moves in a direction that is the opposite of the body's velocity and in the direction of the immediate center of curvature of the path.

When a constant speed circular motion is applied to an item, the centripetal force always acts inward since the object's velocity is tangential to the circle. This would imply that the direction of the force is always perpendicular to the direction in which the object is being moved.

The formula for centripetal force is

F = mω²r ........................ Equation 1

Where F = Centripetal force, ω = angular velocity, r = radius.

Where π = 3.1415

Given: m = 3 kg, ω = 0.5 rev/s = (0.5×2π) rad/s = 3.1415 rad/s, r = 45m.

Substitute into equation 1

F = 3(3.1415)²(45)

F = 1332.3 N

Hence the centripetal force on the turbine blade = 1332.3 N

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An electrical circuit refers to the combination of various electrical components that are connected together. - True

An electrical circuit refers to the combination of various electrical components that are connected together in a closed loop, thereby allowing electrons to flow through the circuit. Electrical circuits are essential for the operation of most electronic devices and are made up of a variety of components such as resistors, capacitors, inductors, and transistors.

These components are connected together using conductive materials. The conductive material is generally the copper wire which is used to create the circuit. The flow of electrons through the circuit can be controlled and manipulated using various techniques, such as switching and modulation, to perform a wide range of functions.

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Before the collision, the velocity of the orange marble is -2 m/s which is equal to the velocity of the blue marble.

The velocity of an object is the speed of the object in a specified direction.

The distance traveled by an object in a specified direction is known as the displacement of the object.

Hence velocity can be defined as the ratio of displacement and the time taken.

Velocity = displacement/time taken.

Considering the velocity of the two marbles;

Before the collision, the blue marble has an equal velocity as the orange marble but in an opposite direction. Taking the direction of the blue velocity as positive, the velocity of the orange marble will be equal to the velocity of the orange marble in a negative direction.

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Answer:

C

Explanation:

Without thinking, the answer is C.

The problem is with D. Of course it is going to depend on the transparency. If the material is a rock, then the light won't go through, and n >>>1.  I don't think you are intended to think that way, but I sure wish D wasn't there. I'd answer C, but be prepared to see it come out as D.

Answer:

it and i quote you "is less than in free space

Explanation:

i cant explain

To draw vectors C⃗ = A⃗ + B⃗ and D⃗ = A⃗ − B⃗, plot vector A⃗ starting from the origin, then add B⃗ to its terminal point for C⃗ and subtract B⃗ from A⃗ for D⃗.

1. Begin by drawing a coordinate system or grid on a piece of paper or a graphing software.

2. Identify the initial point for vector A⃗. Let's assume it starts at the origin (0, 0).

3. Determine the magnitude and direction of vector A⃗. Suppose A⃗ has a magnitude of 4 units and a direction of 30 degrees above the positive x-axis.

4. From the initial point of A⃗, draw an arrow that represents vector A⃗ with the determined magnitude and direction.

5. Repeat steps 2-4 for vector B⃗. Suppose B⃗ starts at the origin (0, 0), has a magnitude of 3 units, and is directed 45 degrees below the positive x-axis.

6. Draw vector B⃗ from its initial point with the appropriate magnitude and direction.

7. To find vector C⃗, add vectors A⃗ and B⃗ algebraically. Place the initial point of vector B⃗ at the terminal point of vector A⃗, and draw an arrow from the initial point of A⃗ to the terminal point of B⃗. This represents vector C⃗.

8. To find vector D⃗, subtract vector B⃗ from vector A⃗. Place the initial point of vector B⃗ at the terminal point of vector A⃗, and draw an arrow from the initial point of A⃗ to the terminal point of B⃗. This represents vector D⃗.

By following these steps, you will have accurately drawn vectors C⃗ = A⃗ + B⃗ and D⃗ = A⃗ − B⃗. Remember to label the vectors appropriately for clarity.

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Wavelength of the light that is received by the observer on the Earth is 5.4 x 10⁻⁷m.

a) Speed of the galaxy, v = 3.9 x 10⁴ m/s

Speed of light, c = 3 x 10⁵ m/s

Wavelength of the light emitted from the galaxy, λ = 6.2 x 10⁻⁷m

(i) The expression for the change in wavelength of the light that is received by the observer on the Earth is given by,

Δλ = (v/c)λ

Δλ = (3.9 x 10⁴/3 x 10⁵) 6.2 x 10⁻⁷

Δλ = 8.06 x 10⁻⁸m

(ii) Wavelength of the light that is received by the observer on the Earth,

λ' = λ - Δλ

λ' = 5.4 x 10⁻⁷m

b) Redshifts have been observed for almost all galaxies. When light from far-off galaxies travels from the galaxy to our telescopes, it is stretched (made redder) by the universe's expansion, which is known as "cosmological redshift".

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The substitution method is a quick and easy way to algebraically solve a set of linear equations and determine the variables' solutions.

Thus, According to what the name implies, this method entails determining the value of the x-variable in terms of the y-variable from the first equation and then substituting or replacing the value of the x-variable in the second equation.

One of the algebraic techniques for solving simultaneous linear equations is the substitution approach. It entails changing any variable's value from one equation to the other by substituting it in.

The cross multiplication method and the elimination method are the other two algebraic strategies for resolving linear equations and variables.

Thus, The substitution method is a quick and easy way to algebraically solve a set of linear equations and determine the variables' solutions.

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\(\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}\)

Actually Welcome to the Concept of the Rays of light.

Since we know that, The light ray on a shiny surface makes a angle with the normal, hence The Angle of incidence is equal to angle of reflection made with Normal Axis in the middle.

Thus Option c.) is correct.

C.) is the Answer.

The angle of reflection given the incident ray from the given diagrams is option C.

When a light ray strikes the shining surfaces, the part of the light gets refracted. The bouncing back of the light is called reflection. When the light strikes the surface is called an incident ray.

When the light ray incident on the surface, the light returns back to the same medium is called reflection. The laws of reflection are, the angle of incidence is equal to the angle of reflection, and the incident ray, reflected ray, and normal takes place in the same plane. The speed of light remains the same in the process of reflection.

The reflected light ray changes the path of direction in the same medium. When a light ray enters from one medium to another, the speed of light gets decreases.

Thus, the ideal solution is option C.

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If you shine a green light on a white sheet of paper, the paper would appear to be green. This is because an object appears to be a certain color because it reflects that color of light back to our eyes.

When white light, which contains all the colors of the visible spectrum, hits a white sheet of paper, the paper reflects all those colors back to our eyes, making it appear white. However, if you shine a green light on the paper, the paper will absorb all the colors of the visible spectrum except for green. The green light will be reflected back to our eyes, making the paper appear green. Therefore, the correct answer to this question is d) Green.
The color that a white sheet of paper would appear when you shine a green light on it is d) Green.

When a green light is shone onto a white sheet of paper, the paper appears green because it reflects the green light. White objects reflect all wavelengths of visible light, so when only green light is present, it only has green light to reflect. Therefore, the paper appears green to our eyes.

In summary, the white paper appears green under green light because it reflects the green light and no other wavelengths are present to create a different color.

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Answer: The table that would organize and summarize the class data on pH levels of the different soil types is found in the attachment below.

Explanation: As an A+ student, I love to help people on brainly in my free time! If this answer helped you, please click the heart, click the crown to give brainliest and give a 5 star rating! I'd appreciate it if you did at least one of those <3 Have a great day.

Magnitude of the average contact force exerted on the leg = 2395.45 N

What is contact force ?

A contact force is the force exerted by an object in contact. A contact force acts on the point of direct contact between two objects. This force can be continuous as a continuous force or momentary in the form of an impact

v o = initial velocity of the hand = 4.25 m/s

v = final velocity of the hand = 0 m/s

t = time interval = 2.75 m s = 0.00275 s

m = mass of the hand = 1.55 kg

F hand = force on the hand

Using Impulse change in momentum equation

F hand t = m (v - v o)

F hand (0.00275) = (1.55) (0 - 4.25)

F hand = - 2395.45 N

F leg = force on the leg

Using Newton's third law

F leg = - F hand

F leg = - (- 2395.45)

Fl eg = 2395.45 N

magnitude of the average contact force exerted on the leg = 2395.45 N

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Answer:

B. A well-tested explanation for a widely accepted hypothesis

Explanation:

This is true about a scientific theory going by the fact of it being a well tested explanation. For example, in one of the Newtons law of motion which he stated to be "To every action, there is equal and opposite reaction", the hypothesis has been known till he was able to offer a well tested explanations with calculations showing that, it was actually true.

Answer:

I think it is the third one

Explanation:

Everything about it is flipped

The electromagnets with poles that are reversed from the electromagnet  is according to image C.

A substance which is negative charged at one end and positive charged at another end creating the magnetic field around it.

A bar is a magnet which can attract the particle which are charged. It has two poles North and South.

The electromagnet is find in the electric motor. In the motor, loop made up of conductor is rotated by the effect of magnetic field of permanent magnet.

An electromagnet is a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

When the poles are reversed, then the direction of current flow is also reversed.

Thus, the correct option is C.

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The volume of the balloon when the pressure inside it equalizes with the atmospheric pressure is 475 L.

Boyle's law states that the product of pressure and volume is constant for a given amount of gas at constant temperature, P1V1 = P2V2, where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.

The ideal gas law relates pressure, volume, temperature, and the number of moles of gas, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature. Since the temperature and the amount of gas (number of moles) are constant in this problem,

P1V1 = P2V2

Solving for V2, V2 = (P1V1) / P2, where P1 is the initial pressure of the helium tank, V1 is the initial volume of the helium tank, and P2 is the final pressure of the balloon (equal to the atmospheric pressure of 1.00 atm).

Plugging in the given values,

V2 = (25.0 atm * 19.0 L) / 1.00 atm

V2 = 475 L

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Answer:

ok

Explanation:

solid- molecules are close together and vibrating

liquid - molecules are loser, faster moving and take the shape of its container

gas- fast moving molecules and take whatever shape they want (like a room or the air outside)

Explanation:

Solids: The inter-molecular attraction force is the highest and the inter-molecular distance is the least. Solids have definite shape and volume.

Liquids: The inter-molecular attraction force is less than that of solids and the inter-molecular distance is more than solids. Liquids have definite volume but no definite shape.

Gases: The inter-molecular attraction force is the least and the inter-molecular distance is the highest. Gases have no definite shape or volume.

The force that must be applied down at an angle of 37.8° to the horizontal to make the box start moving is 3.99 N.

Force is obtained by multiplying the mass of a body by its acceleration.

To calculate the force that must be applied to make the box start moving, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the force that must be applied to the box is 3.99 N.

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Answer:

\(\boxed {\boxed {\sf 157.5 \ Joules }}\)

Explanation:

Work is equal to the product of force and distance.

\(W=F*d\)

The box is being pushed with an effort (force) of 45 Newtons and the distance is 3.5 meters.

\(F= 45 \ N \\d= 3.5 \ m\)

Substitute the values into the formula.

\(W= 45 \ N * 3.5 \ m\)

Multiply.

\(W= 157.5 \ N*m\)

\(W= 157.5 \ J\)

157.5 Joules of work are done on the crate.

The period of a particle's vibration is the time it takes for one complete cycle of vibration. In this case, the particle vibrates 4.0 times every 1.5 seconds.

To find the period, we can divide the total time taken (1.5 seconds) by the number of vibrations (4.0 times):

Period = Total time / Number of vibrations

Period = 1.5 s / 4.0

Period = 0.375 s

Therefore, the period for the particle is 0.375 seconds, which is equivalent to 0.38 s when rounded to two decimal places.

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Answer:

200W

Explanation:

W=F*d

P=W/t

P=(100)(10)/5

P=200

In order to chill a 750mL bottle of champagne using a bucket of ice at 0 degrees Celsius, approximately 249 grams of ice must melt. The specific heat capacity of ice is approximately 2.09 J/g°C.

To determine the amount of ice that needs to melt, we can use the principles of thermodynamics. First, we need to calculate the heat lost by the champagne and the heat gained by the melting ice. The heat lost by the champagne can be calculated using the equation Q = mcΔT, where Q is the heat lost, m is the mass of the champagne, c is the specific heat capacity of champagne, and ΔT is the change in temperature. Similarly, the heat gained by the ice can be calculated using the same equation, where m is the mass of the ice and c is the specific heat capacity of ice.

Given that the initial temperature of the champagne is 25 degrees Celsius and the final temperature is 8 degrees Celsius, ΔT for the champagne is 25 - 8 = 17 degrees Celsius. The specific heat capacity of champagne is approximately the same as water, which is 4.18 J/g°C. Therefore, the heat lost by the champagne is Q = (750g)(4.18 J/g°C)(17°C) = 53,595 J.

Since the ice is at 0 degrees Celsius, ΔT for the ice is 0 - (-8) = 8 degrees Celsius. The specific heat capacity of ice is approximately 2.09 J/g°C. Therefore, the heat gained by the ice is equal to the heat lost by the champagne, which is 53,595 J. Using the equation Q = mcΔT and solving for the mass of ice (m), we can rearrange the equation to m = Q / (cΔT). Plugging in the values, we get m = 53,595 J / (2.09 J/g°C * 8°C) ≈ 249 grams.

Therefore, approximately 249 grams of ice must melt in order to chill the champagne from 25 degrees Celsius to 8 degrees Celsius in a bucket of ice at 0 degrees Celsius.

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