The convection currents in the asthenosphere cause the movement of the

Ans

It is being pulled toward the object by the objects gravity

Gravity:-

The required number of sides in a regular polygon have if each interior angle measures 140 degrees are 9.

Let n be the regular polygon's number of sides.

The interior angle measures 140 degrees each.

We know the expression,

The total interior angle is equal to (2n - 4) 90°.

140 n = (2n - 4) × 90°

140 n = 180 n - 360

360 = 180 n - 140 n

40 n = 360

n = 360/40

n = 9 sides

Thus, the number of sides in a regular polygon have if each interior angle measures 140 degrees are 9.

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By using the lowest resonant frequency, the wave speed is 389.084 m/s.

We need to know about the fundamental resonant frequency to solve this problem. When the string is vibrating at its lowest resonant frequency, it should follow the rule

λ = 2L

where λ is wavelength and L is length of string

From the question above, we know that

f = 922 Hz

L = 21.1 cm

By substituting to the following equation, we can calculate the wavelength

λ = 2L

λ = 2 . 21.1

λ = 42.2 cm

λ = 0.422 m

Find the speed of wave

v = λ . f

v = 0.422 . 922

v = 389.084 m/s

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Let's consider the following equations:

(1) g = Gm/r²

(the gravitational force of attraction depends on the masses of the objects involved and the distance between them)(2)

F = ma (Newton's second law of motion)

Combining both equations, we have:

ma = Gm/r²a

= Gm/r²mm/s²

= m³/kg.s²/r²

On the surface of the Earth:

r = 6.38 × 10⁶ m (radius of the Earth)

m = 5.98 × 10²⁴ kg (mass of the Earth)

g = 9.81 m/s² (acceleration due to gravity)

We can use the acceleration due to gravity on the surface of the Earth to find G as follows:

g = Gm/r²9.81 m/s²

= G(5.98 × 10²⁴ kg)/(6.38 × 10⁶ m)²G

= 6.67 × 10⁻¹¹ N.m²/kg² (gravitational constant)

Now, let's consider the top of the thermosphere:r

= 6.7 × 10⁶ m (approximate radius)Here, we need to find the acceleration due to gravity.

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Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Here’s the answer buddy!

What is a unit?

A unit is an individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole.

Define SI system?

The International System of Units is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world.

What is the advantage of using SI system?

The greatest advantage of SI is that it has only one unit for each quantity (type of measurement). This means that it is never necessary to convert from one unit to another (within the system) and there are no conversion factors for students to memorize. For example, the one and only SI unit of length is the metre (m).

Answer:

17 meters

Explanation:

because 12 meters +5 meters =17 meters

Moving a spring toy up and down creates a disturbance that is parallel to the wave motion. This type of disturbance is called a longitudinal wave.

In a longitudinal wave, the particles of the medium oscillate parallel to the direction of the wave motion. When you move a spring toy up and down, you create a series of compressions and rarefactions in the spring, where the coils are compressed together and then spread apart.

This creates a longitudinal wave that travels through the spring. Sound waves are also examples of longitudinal waves, where the compression and rarefaction of air particles create the wave motion.

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To calculate the emf developed and the electric field felt by electrons in the rod, we need to use the formula for electromagnetic induction. Given the length of the rod, the speed at which it is pulled, and the magnetic field strength, we can calculate the emf and the electric field.

According to Faraday's law of electromagnetic induction, the emf (ε) induced in a conductor moving through a magnetic field is given by the equation ε = B * L * v, where B is the magnetic field strength, L is the length of the conductor perpendicular to the magnetic field, and v is the velocity of the conductor. In this case, the length of the rod (L) is given as 12.0 cm, the speed (v) at which it is pulled is 15.0 cm/s, and the magnetic field strength (B) is 0.800 T.

Substituting these values into the formula, we can calculate the emf:

ε = (0.800 T) * (12.0 cm) * (15.0 cm/s) = 144 mV.

To calculate the electric field felt by the electrons in the rod, we can use the equation E = ε / L, where E is the electric field and L is the length of the rod. Given that the length of the rod is 12.0 cm, we can calculate the electric field:

E = (144 mV) / (12.0 cm) = 12 V/m.

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Answer: B. Elements

Explanation:

Most things we use everyday are compounds which are composed of two or more elements.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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The upthrust on the wooden cube is 1.57 x 10⁴ N.

According to Archimedes' Principle, when an object is immersed in water, it displaces its own weight of water, resulting in an upward force, or upthrust, on the object.

When an object is fully immersed in a fluid, the upthrust on it is equal to the weight of the fluid displaced by the object.

The upthrust on a wooden cube with sides measuring 2m, which is immersed in water as shown in the figure, must be calculated. 6m 2m Rectangular body Water .

​[Figure]The density of water is 1000 kg/m³.

The mass of water displaced by the cube is equal to its volume multiplied by its density.

The volume of the cube can be calculated using the formula:

Volume of cube = Side x Side x Side

Using this formula, we get

Volume of cube = 2 x 2 x 2Volume of cube = 8 m³

Therefore, the mass of water displaced by the cube is

Mass = Density x Volume

Mass = 1000 kg/m³ x 8 m³Mass = 8000 kg

The weight of water displaced by the cube is

Weight = Mass x Gravity

Weight = 8000 kg x 9.81 N/kg

Weight = 78480 N

Therefore, the upthrust on the wooden cube is

Upthrust = Weight of water displaced

Upthrust = 78480 NUpthrust = 1.57 x 10⁴ N.

Therefore, the upthrust on the wooden cube is 1.57 x 10⁴ N.

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Answer:

D

Explanation: need good posture other wise will injury yourself during activity

Centripetal acceleration is responsible for changing the direction of an object in uniform circular motion while maintaining a constant speed.

In uniform circular motion, an object travels along a circular path with a constant speed. Although the speed remains constant, the velocity of the object changes because velocity is a vector quantity that includes both magnitude (speed) and direction. As the object moves around the circle, its velocity vector constantly changes its direction towards the center of the circle. This change in velocity creates an acceleration called centripetal acceleration, which is always directed towards the center of the circular path. This acceleration enables the object to maintain its circular motion by continuously changing its direction.

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Answer:

i wanna say tranverse if not surface

Explanation:

Answer : Surface Wave

Explanation:

Gravity waves along the surface of liquids, such as ocean waves. (btw it does look like ocean waves)

The object changes direction from 2 s to 9 s because the slope is negative the entire time.

The object's acceleration is indicated by the slope of the velocity-time graph. A change in the slope's sign, from positive to negative or vice versa, denotes a shift in the motion's direction.

A positive slope denotes motion or acceleration in the positive direction, whereas a negative slope denotes motion or acceleration in the opposite direction. As a result, a shift from a positive to a negative slope or vice versa denotes a direction change.

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When viewing an object that is immersed in water, the image that is formed is refracted.

This occurs because light travels at different speeds in different media, such as air and water. As light passes from water to air, its speed changes, causing the light to bend, or refract.

This bending of light creates a distorted image of the object, making it appear closer or shifted from its actual position. This optical phenomenon, known as refraction, can be observed in everyday life, such as when a spoon appears bent when placed in a glass of water.

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Answer:

M = 1.994 × 10^(30) kg

Explanation:

We are given;

Orbital radius; r = 1.5 × 10^(8) km = 1.5 × 10^(11) m

Gravitational constant; G = 6.67 × 10^(-11) N.m²/kg²

If the orbit is circular, the it means the gravitational force is equal to the centripetal force.

Thus; F_g = F_c

GMm/r² = mv²/r

Simplifying gives;

GM/r = v²

M = v²r/G

Now, v is the speed of the earth around the sun and from online sources it has a value of around 29.78 km/s = 29780 m/s

Thus;

M = (29780^(2) × 1.5 × 10^(11))/6.67 × 10^(-11)

M = 1.994 × 10^(30) kg

Answer:

Loss of momentum

Explanation:

Centripetal force is the name given to any force which causes a change in direction of velocity toward the center of the circular motion. The component of the force which is perpendicular to the velocity is the part resulting in the centripetal force

We must first determine the amount of force needed to lift the boxes against gravity. The weight of the boxes is calculated as follows: 30 boxes x 6 kg/box = 180 kg

Work = Force x Distance Work = 1765.8 N x 1.5 m Work = 2648.7 Joules Force = Weight x Gravitational Acceleration Force = 180 kg x 9.81 m/s2 Force = 1765.8 N

The total work required to raise thirty 6 kilogram boxes onto a 1.5 m high shelf is therefore 2648.7 Joules.

Hence, the gravitational pull between two objects grows as their respective masses do as well. The force of gravity between two objects is equal to their respective masses multiplied by two. To put it another way, the gravitational potential energy directly relates to how high an item is above the earth. Consequently, an item needs be elevated higher in order to enhance its gravitational potential energy. The gravitational potential energy increases with height.

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Rutherford's idea that electrons radiate energy while orbiting around a nucleus would have strengthened the idea of quantum mechanics, which explains the behavior of particles at the subatomic level.

what is mechanics ?

Mechanics is a branch of science that studies the behavior of physical objects, their interactions, and the forces that act on them. It is sometimes referred to as the fundamental science, as it provides the underlying principles of many other sciences, such as engineering, aeronautical science, and medicine.

Mechanics is divided into two main branches: classical mechanics and quantum mechanics. Classical mechanics studies the motion of macroscopic objects, such as automobiles and aircraft, and is a cornerstone of engineering and the physical sciences. Quantum mechanics is the study of the behavior of microscopic objects, such as atoms and molecules, and is a cornerstone of modern chemistry and physics.

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To answer this question, we'll analyze the given information and apply it to the FSM (finite state machine). Since the input b is 0 on the clock's rising edge, we'll follow the path for b=0 in the given transitions.

Inputs: b
Outputs: z
States: n, m

Transitions:
1. n, b=0, z=0, state=n
2. n, b=1, z=1, state=m
3. m, b=0, z=1, state=m
4. m, b=1, z=0, state=n

As the FSM is initially in state n and the input b is 0 on the clock's rising edge, we'll use Transition 1: n, b=0, z=0, state=n.

So, the resulting output and state of the FSM are z=0 and state=n.

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"Diffusion" is the missing word here.

To complete the sentence, write "diffusion" in the blank line hence, "the diffusion of light waves upon passing through a narrow slit is called diffraction".

So basically, the spreading out of waves when they pass through an aperture or around objects is referred to as diffraction. It happens when the aperture or obstruction is of the same order of magnitude as the incident wave's wavelength.

You can observe during diffraction that light bends when it passes around an edge or through a narrow slit.

To summarize, diffraction causes waves with seem to bend around small barriers and to extend out past small openings.

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Based on the given data, (a)  the acceleration of the first block is 1.45 m/s² ; (b) the tension in the cord is 5.15 N

To calculate the acceleration of the first block, we know that the tension in the string is same throughout.

Let, T be the tension in the string and a be the acceleration of the system.

Then, 3.55a = T... (i) and, 2.78g - T = 2.78a... (ii)

Multiplying equation (i) by 2.78 and adding to equation (ii),

2.78g - 2.78T + 3.55a * 2.78 = 2.78a + 2.78T5.32a = 2.78g... (iii)

=> a = 2.78g/5.32 = 1.45 m/s²

Therefore, the acceleration of the first block is 1.45 m/s².

To calculate the tension in the cord, putting a = 1.45 in equation (i),

T = 3.55a= 3.55 * 1.45= 5.15 N

Therefore, the tension in the cord is 5.15 N.

Thus, the correct answers are : (a) 1.45 m/s² ; (b) 5.15 N.

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Answer: Due that we don't know the initial speed after hitting the ball, we are going to accept that the ball goes up for half of the time and then falls during other half part, that is 3.0 seconds each. Then we know that ball's movement is ruled by the acceleration of gravity formula, as follows: H = Vi * T + 1/2 * g * T^2 V = Vi + g * T where: H is height, Vi initial speed, g gravity acceleration and T time When we only consider the second half of the trajectory, we have that initial speed at the top of that movement is zero, because ball goes up till top, where stops and starts to go down, so : H = 0 * 3 + 1/2 * 32 * 3^2 = 144 ft. So the height of the pop-up is 144 feet.

The ball rise 144 feet high.

Due to that, we don't know the initial speed after hitting the ball, we are going to accept that the ball goes up for half of the time and then falls during another half part, which is 3.0 seconds each.

Then we know that the ball's movement is ruled by the acceleration of gravity formula, as follows: H = Vi * T + 1/2 * g * T^2 V = Vi + g * T

Where: H is height, V is initial speed, g is gravity acceleration, and T is time.

When we only consider the second half of the trajectory, we have that initial speed at the top of that movement is zero, because the ball goes up to the top, where stops and starts to go down, so:

H = 0 * 3 + 1/2 * 32 * 3^2 = 144 ft.

So the height of the pop-up is 144 feet.

Height is a measure of vertical distance, either vertical extent or vertical position

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If a red sled slides across a sheet of ice and collides to a stationary green sled and continue sliding together, the velocity of the two sleds will be equal.

This type of collision is called as inelastic collision. In this type of collision, the two objects that undergo collision will move a single object after collision. So they cannot have different velocities.

According to law of conservation of momentum,

m1u1+ m2u2 = m1v1 + m2v2

In inelastic collision,

v1 = v2 = v

m1u1+ m2u2 = ( m1 + m2 ) v

Therefore, the velocity of the two sleds will be equal.

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An electric circuit containing a dry cell and a torch bulb is completed by including a metal screw driver having a wooden handle. The bulb does not glow as wood does not pass electricity through it.

An electric circuit conducting current is a closed path of wires and electrical components which allows current through them on the application of potential difference between two points in the path.

Materials are usually of two types, they are conductors and insulators. Insulators do not allow current to pass through them due to the arrangement of atoms in them.

Some of the examples of insulators are wood, plastic, stone, etc.

As wood is included in the circuit, the current is not continuous and breaks its flow at the point where wood id connected.

Thus, the bulb does not glow.

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The Time difference in the period of a simple pendulum is 11.6 s

The period of a simple pendulum is given as follows,

\($$T=2\pi \sqrt{\frac{L}{g}}$$\)

Where

T = time period

L = length of the pendulum

g = acceleration due to gravity = 9.8 m/s²

The period of the original pendulum is given as:

T = 2π√(L/g)

The time period of the shortened pendulum is given as:

T' = 2π√(L'-g)

By comparing the above two equations, we have,

T' = 2π√[(L-2.90 mm)/g] ≈ T

[As 2.90mm is very small compared to 62cm]

Therefore, the time difference,

ΔT = T' - T= 0Hr. 00min. 11.6s (approx)≈ 11.6s (approx)

Thus, the clock will be slower by approximately 11.6s every 24 hours.

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Answer:

10 m/s

Explanation:

The height of the cliff is 1.225 meters.To determine the bird's velocity the instant it hits the ground and the height of the cliff, we can use kinematic equations under the assumption of constant acceleration due to gravity.

Given: Time taken to drop to the ground (t) = 0.50 s.
Acceleration due to gravity (g) = 9.8 m/s^2 (assuming downward direction)

First, let's find the bird's velocity when it hits the ground. We can use the kinematic equation: v = u + gt
Here, u represents the initial velocity (which is zero as the bird steps off the cliff), v represents the final velocity, g is the acceleration due to gravity, and t is the time taken to fall.

Substituting the known values: v = 0 + (9.8 m/s^2)(0.50 s)

v = 4.9 m/s.

Therefore, the bird's velocity the instant it hits the ground is 4.9 m/s.

Next, we can calculate the height of the cliff. We can use another kinematic equation: h = ut + (1/2)gt^2
Since the initial velocity (u) is zero, the equation simplifies to: h = (1/2)gt^2

Substituting the known values: h = (1/2)(9.8 m/s^2)(0.50 s)^2

h = (1/2)(9.8 m/s^2)(0.25 s^2)

h = 1.225 m. Therefore, the height of the cliff is 1.225 meters

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The mass of the chain is 92.55grams.

Gravity and the force from the support are the forces pulling on the chain's uncoiled sections.

Let the mass of chain be M

Mass of stick = m = 0.18kg

The balancing point shifts 17.0 cm in the direction of the other end when a short chain is suspended from one end, according to the information provided.

x= 17 cm = 0.17m

Length of stick L = 1m

Adjusting the moment of force about our pivot,

mgx - M(L/2 -x) = 0

0.18 × 9.8 ×0.17 = M(1/2-0.17)9.8

0.29988/3.24 = M

M = 0.09255

M = 92.55grams

Thus, the chain weighs 92.55 grams.

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